This isn’t a helicopter or an airplane?

[@BazilRat]

"I made a mini auto gyro so I know wtf I'm doing when I fly the real thing" has to be one of the best reasons to build a little one I've ever heard.

[@martijn9568]

To be fair. That's pretty much what the Wright brothers did as well. They learned how an airplane works and also flew one that was fastened to the ground in strong winds. So before they made their actual first flight they already had "flight experience". Something not all aviation pioneers had back then.

[@infinitytoinfinitysquaredb7836]

He also said the full-size ones don't respond the same as the models so...

[@BazilRat]

@@infinitytoinfinitysquaredb7836 True, but it'll still teach him the physics and help.

[@infinitytoinfinitysquaredb7836]

@@BazilRat Right, and he said he wants to use the model to learn some acrobatic tricks he can apply to flying his full-size gero like in the James Bond movie. My point is, if they don't respond in the same way is that such a good idea? And they very likely have a different power/weigh ratio as well, plus many other aeronautical differences. Anyway, I hope he doesn't push it too much.

[@NotaRobot_gif]

...and then proceeds to crash it 47 times. =)

[@hippie-io7225]

I have a buddy whom at one time owned a full size human gyro. He gave me a ride. Watching your video helps me appreciate that we are not dead.

[@tmlf1239]

I'm not sure where the notion that autogyros are inherently unsafe comes from. Back in the 20s and 30s many aviators flew them and regarded them as more safe than airplanes due to the fact they could autorotate and can take off and land in very short distances, and also capable of very slow flight, whereas an airplane would stall. Amelia Earhart flew one for years. She set at least one record in it, an altitude record of 18000 ft. If you expect them to fly like an airplane, then yes they probably are unsafe. It kind of looks like Peter is falling into that trap with all his initial crashes. I've only flown one in simulator but if I recall, they don't rotate at takeoff. At sufficient air speed they just lift off without changing attitude.

[@cameronlapworth2284]

@@tmlf1239 Hi I fly gyros though not for a few years. The gyros safety record is undeserved the safety records of people trying to teach themselves and some appalling instructors resulted and still results in a terrible safety record. One of the issues is they are a very high wing loading machine meaning that when the rotax 582s became available we could have dual control machines unfortunately that same machine was available as a single seater. So the empty weight of that machine was probably 130kg. Now add two 90kg male pilots and you have a machine just able to fly. Take one out and you've lost about 1/3 the weight and it flies like a completely different machine. The stick sensitivity alone is massively different. Gyros have a few things that can bite you on the arse but much safer in others. For example no stall no spin. I've had 4 engine related emergencies two full on engine failures. Non event I'm a gyro but you can't fly them fast.

[@alysdexia]

who

[@lawrencewillard6370]

@@tmlf1239 Flew in them for years, my problems were those who built them, for a while was a test pilot for my mates. Had to KNOW them and what they did when the built them. A friend died flying his, this was the cause of FAA building and testing. Their response was this is the best aircraft to survive all they did to it..They bolted one to the back of a flat bed truck. It lifted the back of the truck of the ground, the pilot lined it up again after it went sideways.. Tough?, safe?, depends on you and your mindset. I made certain I knew what to expect, and what to do in all situations. Needed that.

[@808bigisland]

Saw a Cierva in the Brits tech museum. Very impressive machine. Want an electric one.

[@awood12345]

I've been fascinated with autogyro's for years. I was lucky enough to fly the RC autogyros designed by a friend who was an amazing builder, they are such a cool machine to fly. He also got me an invite to see Ken Wallis a year or so before he died. Ken was an amazing man and did a ton of things, seeing him fly in his garden is something I'll never forget.

[@ulrichkalber9039]

we had one flying show in Braunschweig as well, was spectacular. Mr Wallis was there too with little nelly.

[@jobelle_gregorio08kyriesan64]

American landmasses identification m patties

[@designsbyphilip510]

Im obessed with Gyroplanes. I so want to get my Sport Pilots license in one.

[@cambridgemart2075]

Little Nelly now resides in the Shuttleworth Aircraft Collection in Old Warden, sadly no longer flying.

[@tonywright8294]

Wallis’s big head though he knew everything !

[@CharlesVanNoland]

Peter, you've finally achieved final form - tackling the gyro after all of the projects over the years. The gyro is everything. The gyro is life. The gyro is all that there ever should be and all that ever should've been.

[@cameronlapworth2284]

RIGHT THERE WITH YOU BUDDY!

[@barneylegend1023]

Can’t disagree with ya

[@CharlesVanNoland]

@@scotty657 I'm naturally on another plane.

[@BrightBlueJim]

I'm a little concerned about the ... finality.

[@Afrocanuk]

The Auto-Gyro is literally the (missing) link between fixed & rotary wing airchafts. Juan de la Cierva was also the inventor of the swash-plate. The mechanism responsible for giving helicopters directional control.

[@Francois_Dupont]

wasnt it the russian that invented the first helicopter? nobody wanted it until BELL bought the design from him.

[@joshtamargoderothschild2420]

@Tom Sawyer proposed by russian Boris Yuryev in 1911 but De la Cierva was the first who could really get it to work to apply it to surface control... without Mr la Cierva we would not have helicopters as we know them today

[@toolbaggers]

Maybe closer to an airplane. The V-22 is closer to a heli in my opinion because the thing that makes a heli a heli is the being able to vector the thrust of the rotor. The autogyro is closer to a powered paraglider and an airplane than a heli because they have have passive wings.

[@nzsaltflatsracer8054]

Afrocanuk is correct. The accurate history is that Cierva invented the swashplate, sold manufacturing rights to Pitcairn in the US, then the US Government overrode the patent rights to allow Sikorsky to build a successful helicopter using Cierva's invention.

[@crawford323]

@@nzsaltflatsracer8054 Sikorsky became a licensee of Pitcairn who had improved the rotorhead and had his own very successful jump take off designs. Let say to be kind ahh Sikorsky borrowed Pitcairns head design and successfully flew his helicopter in 1941 or so. Pitcairn sued but according to Bruce Charnov’s book From Autogiros to Gyroplanes, the government blocked the lawsuit claiming National security. Of course this marked the end to the effective commercialization of the Autogyro. Despondent Pitcairn was found dead from a gunshot wound. His estate did win the lawsuit in mid 1970’s and was awarded, if my memory servers 60 million. A pittance compared to the industry which was aided by his efforts. Juan de La Cierva was killed in a DC-3 in England in a weather related accident as a relative young man. Kellet, Pitcairn and others improved on what De La Cierva gave us. It all started as a result of a tragic stall spin accident which killed his good friend. This led him to ask one of the most out of the box questions which showed his genius. “ Why do the passengers have to fly at the same speed as the wings?”

[@antongolovko1149]

Holy cow your editing skills are really good now! Looks really nice compared to older videos! Looking forward to you flying the big gyrocopter in your next video. Good luck!

[@thetruthexperiment]

Yeah you used to suck but now you’re okay. Hahaha. Just kidding. You’re rich and you fly. You’ve always been alright. Musical choice is better now for sure though. Haha!

[@cinemoriahFPV]

He hired an editor that's why it looks so good.

[@antongolovko1149]

@@cinemoriahFPV I see

[@blancolirio]

Excellent Pete, Thanks for posting!! Be careful when you go full scale...Training!!

[@Smoke_Rush]

Natural selection more like!

[@martijn9568]

Peter just wants to unvoluntarily end up doing a collab with you I'm afraid😅

[@dwhall256]

It's not just the aerodynamics that doesn't scale well, it's the ratio of gyroscopic force to the mass of the vehicle. (i.e. your aircraft is so light, the gyroscopic force dominates at high rotor rpm). If you add a second rotor in contra-rotation, you will reduce the gyroscopic forces and have more stability. Optionally, you could add more mass to your aircraft.

[@pufango4059]

You don’t have a clue what you are talking about do you ?

[@BrightBlueJim]

So, using dual rotors and a contra-rotating props on the engine should make it easy!

[@benm5913]

For when you go full scale: Gyrocopters have a very specific safety issue that fixed wings don't, despite the fact that they control the same. Don't ever unload the rotors, it's a deadly issue that can't be recovered from. Essentially, it's like letting go of a kite string. You cant fix it once its gone. It's called Power Push Over. Rule of thumb is dont allow yourself to get negative g's.

[@thomassuit7450]

You can see that happening in some of his model flight tests. You need to level off *gently* after climbing out. Ease off the power before pushing the stick forward. If you unload the rotor by letting wind blow in through the top, the wing quits flying and you fall like a rock. The other thing that is different is that if I recall correctly, control inputs are not held like with fixed wing aircraft. So like for a right bank you would move your stick right and return it to neutral, then to exit the turn you do the mirror image (stick left, then return to neutral) of what you just did to enter the turn. It's been decades since I was looking at these so I could be wrong on that one. Get formal training before trying to fly the real one.

[@error.418]

PPO is set up by a design with the thrust line above the CoG. Not all gyros are designed like that.

[@benm5913]

@@error.418 Ill be honest, I dont know any design that doesnt have thrust above cog. As far as I know the design feature that helped, helped not eliminated the issue, is the addition of a large horizontal rear tail fin. Designs from the 70's generally don't have this and you'll see that the crash rate amongst gyrocoptors is usually those older designs.

[@error.418]

​@@benm5913 A lot of people modified their gyro to raise the body so they could lower the engine. others also tilted the engine to adjust the thrust line to more closely intersect the CoG. there was also a big push for performance during the late-60s and 70s that lead to a spike in crashes as novice pilots got ahold of engines too powerful for the design and skill level. it's complicated, but PPO is set up by thrust line over CoG and exacerbated by higher power thrust.

[@benm5913]

@@error.418 I agree that PPO is set up through thrust over cog, buuuuut, unloading the rotors is the end result. That was the original point. Don't unload the rotors.

[@Lord_Omni]

Can add few more things: odd number of blades is generally recommended for RC gyrocopters, and you can make one from a RC copter body, where swashplate will handle uneven pitch for you, stock 3 servos will give you good control without real need for a yaw control on a tail, and stock main gear with some tinkering can be used for prespin (but you have to add a tail for stabilization anyway). Also mixes will help a lot with stall and rollovers related to burst of thrust.

[@cheapskateaquatics7103]

I remember reading an article in popular mechanics in the late 2000's about a guy building and flying a gyrocopter. He used an old Subaru engine for the power plant and a clutch to spin up the free rotor.

[@infinitytoinfinitysquaredb7836]

A Subaru engine?? The gyrocopter must have been huge.

[@cheapskateaquatics7103]

@@infinitytoinfinitysquaredb7836 I mean it wasn't huge, but it was larger than the one Peter has. Granted, once you take away everything from a boxer engine, they are not that big. If you look up some of the older ones, they still have the Subaru boxer engines.

[@infinitytoinfinitysquaredb7836]

@@cheapskateaquatics7103 We are talking about an automobile engine here, right? Seems like a very poor fit for a gyrocopter. But what do I know, I'm not an aeronautical engineer.

[@Francois_Dupont]

@@infinitytoinfinitysquaredb7836 yeah, its pure BS

[@quackman7027]

@@infinitytoinfinitysquaredb7836 theres one for sale over here with a turbo subaru flat 4 engine and is a registered aircraft and everything

[@wtechboy18]

"once it's in the air it flies like an airplane" - From what I've read written by other gyrocopter pilots this is MOSTLY correct but not in one critical area - if you start stalling in an airplane and lose airspeed the correct answer is to pitch the nose down. In a gyrocopter, that'll get you killed very easily as it can send you tumbling ass-over-head very quickly. The autogyro aspect of a gyrocopter should be adequate to spin the blades back up again if you stall out simply by sacrificing some amount of altitude - but you *must* keep the airflow coming from the *underside* of the plane of motion of the blades or you're going to have a Very Bad Time™.

[@aaamogusthespiderever2566]

*yeets a frisk at the gyro*

[@FilosophicalPharmer]

TM on “Very Bad Time”! lolol!

[@C-Henry]

Always wondered why there were so few RC gyro copters, now I guess I know, awesome that you made it work.

[@dfgaJK]

That anti magnet was unexpectedly fascinating. Did it really work like that or was there some movie magic?

[@electricalmayhem]

It works as well as the hammer does on the aluminum a few seconds later

[@robertstark3326]

Peter, another great video. I have a Hobbyking Auto G2 and it flies great. It has some nice design features including a slip clutch that allows a small motor with a flexible shaft to power the rotor for take-offs then is able to free spin like a bike wheel. Stay safe with the real one you're getting ready to fly. Best of luck.

[@ezonigs3107]

I've read somewhere that the CoG of a gyroplane should always be in front of the rotor mast. is this true. If it is, by how many percent should it be in front of the rotor mast if the rotor diameter is 100%?

[@infinitytoinfinitysquaredb7836]

Your technician ability, perseverance, WORK ETHIC and ability to laugh in the face of defeat never cease to impress. Your channel is unique. 👍😃👍

[@brighambaker3381]

You have to keep load on the rotors, and if you do, you can do almost anything. I went to Bensen days in Florida and got to fly a gyrocopter and it was super awesome, simple, and stable!

[@pierreretief]

Peter been following you for YEARS. Love all your videos. Please just be super careful, my colleague's son died in a gyro-copter crash, at 21, it was his first job as a pilot, the wind was quite strong that day. So if the weather is sketchy, rather skip and fly another day. Good luck and thanks for the awesome content!

[@cameronlapworth2284]

Good training has always been an issue with these machines. Even many instructors are qualified but hopeless. I've had several friends die in them. With good instruction they are very safe especially in rough weather. Getting good instructors out there has always been a challenge. Like early hang gliders there have always been cowboys. Unfortunately many of the current instructors were trained by cowboys who were trained by cowboys many of whom taught themselves.

[@Dr_Mauser]

I remember when I was reading up on autogyros that the most common way to kill yourself was called a Power Push(or Pitch) Over. Basically at the end of a climb, a pilot should reduce power FIRST, then pitch forward. This was especially a problem with models that didn't have a horizontal stabilizer, and a motor thrust line way above the pilot. The mistake would be to reduce pitch first with full power (Because, yeah, you want to go fast now that you're done climbing, right?). Doing that reduces the drag from the rotor, but not from the pilot/cockpit. The center of thrust ends up way above the center of drag, and the whole machine tumbles and is unrecoverable.

[@cameronlapworth2284]

not quite right although this myth has been largely accepted by most in the gryoplane community. I used to fly bensen gyros years ago and am building a new one slowly now. I was trained in the gyroglider then two seat powered then lots of time in my own machine supervised doing strip runs. I never saw an accident at that club we were very well trained. When I went onto become a gyroglider instructor myself for 16 years off and on in that club and our own club in my state. no one ever smashed up a set of rotors under my instruction either. no stabiliser necessary. meanwhile our sport copying off the USA had decided to blame a lack of stabilisers so Australia mandated them. well all that meant was everyone who died died with a stabiliser. that continued at the same rate today. Next in UK a proper scientific analysis was carried out which concluded that speed was the most important factor and that stabilisers were of no help but c of g relative to thrust line was which is true. however machines like the dominator remove the 3 degrees of downturns which in the Bensens puts the thrust line through the cg and keep it flat but bring the mass up. So everyone continued to ignore good training and deaths continued. one guy visited our club and was boasting about his new machine and how fast it was. He claimed he was going to be getting up over 100knots the following weekend he had mabey 5 hour solo. Myself and about 5 others warned him he could inadvertently push the rotors negative trying this and should avoid flying that fast he cited the very large stabiliser like the one on peters machine and the high vs thrustline so wasn't worried. His gps when recovered showed he was doing 95knts when he bunted over the force on his body was so sudden his ripped his harness off and was flung out of the cockpit leaving his leg behind in the process. as you get faster and faster your disk angle become shallower and shallower. push it over and the airflow reverses and in about a second you will fly straight through the rotor and die. anyone tells you otherwise ask them to fly at 100mph straight over the airstrip and punch the stick full forward. if they do I'm convinced they'll kill themselves right in front of you. if they are not willing to try that experiment and actually don't tell them to do it you don't want to be even partly responsible. however I note many including many instructors are willing to make these statements often when trying to sell you a gyroplane. A quick google search of gyroplane fatalities will show you almost all have stabilisers, almost all have high CG to thrustline. the ONLY way to be safe in gyros like all aircraft is to spend the time to get excellent training. That includes you to Peter. don't I any way convince yourself you can safety teach yourself to fly these things. get proper instruction then spend many hours after your instruction in heavy dual machines under supervision doing ground runs.

[@Dr_Mauser]

@@cameronlapworth2284 Perhaps that was an advantage of the original tractor design, the engine in the front put the thrust line in a more inherently stable position.

[@Aviator168]

@@Dr_Mauser Cameron Lapworth is not talking about the pilot push-over problem. He is talking about a fast-spinning rotor and suddenly sees a negative AoA. Instead of generating uplift, the rotor suddenly generates down lift and chops up the pilot.

[@Dr_Mauser]

@@Aviator168 But doesn't the pilot push-over basically cause negative AOA because of the sudden unloading of the blades?

[@Aviator168]

@@Dr_Mauser Depends on the cross-section of the blades and the amount of negative AoA. It definitely reduces the force that makes the blades spin and rotor unload. When the stick is pushed forward, the AoA of the advancing blade is reduced and at the same time, the AoA of retrieving blade is increased. If the stick is pushed too much forward, it will cause the entire retrieving blade to stall, and the rotor stops spinning very quickly.

[@laizalott]

I’ve been working on expanding my gyrocopter fleet, was thinking no one else was interested in this kind of thing in the USA. So happy to see a new PeterSripol video on the subject!!! :)

[@d.jensen5153]

I've got half of a Scott Malone Soma and half of a Monte Hoskins 3D-RV. So, yeah, it was fantastic to see Peter diving into RC gyroplanes and taking lessons on a full-scale machine! Increasingly I live my aviation fantasies vicariously through Peter Stripol. ;)

[@Harry_Ballzonya]

If you were born around the same time as the Wright brothers, you would have been the father of aviation

[@pauljs75]

It's almost like KZbin knew this was coming up. Was getting about a dozen videos on the topic of this particular style of aircraft in my feed before this video showed up. Also it's good Peter has some idea of how potentially unforgiving that kind of aircraft is before trying the real thing. But that also means he should have success, so that'll be fun to watch when it comes.

[@GaninIsMyName]

Peter up here graduating from pondering The Orb to pondering *Gyro Copter* 1:40

[@pilotescort1]

Really appreciate you showing up at Bensen Days with your super cool model gyro. Super pleasure meeting you too. Need more ppl with your enthusiasm. Thank you Sir from the Yamaha powered white 2 seat Snowbird gyro w teeth 👍

[@potatoman9511]

I like the vids. I want to be like you and create stuff. I actually used your video where you had a hot wire foam cutter and built one myself!

[@hamzashah5259]

U cant even imagine how grateful i am as you posted this video man i have been working on rc Gyrocopter for almost a year its my high school project it has so tiny literature available and the problems i faced are more likely as you explained in your video really amazing thanks alot man

[@ekoturnip]

I've supplied paint for a few full sized versions of these over the years. The owners would smash them up rather than selling them due to avoiding blame if the next owner would kill themselves on it :D

[@szxnv]

Peter your videos are always a full nostalgia trip for me, thank you! :)

[@shanekennethjamesaustin3949]

Hey Peter, thanks for the video. I did my initial training as a helicopter maintenance engineer working on Seaking Helo’s. So, I am pretty much full bottle on the workings of fully articulated rotor heads. I’ve spent a lot of time in the left hand seat of different helicopters flying under instruction so at a pinch I could probably walk away from a landing if the pilot was incapacitated. I have a fixed wing PPL and own my own aeroplane but the lure of a gyroplane has been a long held dream! My question is - why don’t Gyro’s have 4 bladed rotor systems? In just about every KZbin video you see of the cockpit view of the flight, the control column is always vibrating in sync with the rotation of the rotor. Surely a 3 or 4 bladed rotor head would make for a smoother ride. With the amount of theory of flight I’ve done over the years I should probably know the answer but I don’t! Is it just a cost thing or is it too hard to engineer for a gyro’ set up. (Both in real life an R/C applications) Cheers. SA

[@elguapo1690]

I never understood why gyro copters never caught on. Now I do! Thanks for that!

[@jesseshakarji9241]

I'd love to see a dual rotor gyrocopter. I know a few designs exist but I'd love to see Peter's take on it.

[@ScottRuggels]

Geared opposed rotors? Something to avoid the asymmetric lift? I am imagining something with a Fletner, or Kamen rotor arraingement.

[@oadka]

Thank you for making such a good resource on how to build RC gyros! Your contribution will be remembered!

[@5minuteprojectideas]

Thank you for sharing Pete. Keep up the good work!!

[@Funnymoney101]

Hi hello yes Peter Street Pole please help I am begging you how did you do the 3d pan at 0:28 I am crying right now I cannot find anywhere how to do this effect cannot sleep until this is resolved I am begging you

[@thevilde4509]

I really look forward to seeing the video of the big one. they are fascinating machines

[@delphicdescant]

I will be relieved when I see the video of the big one, because it will probably mean he's still with us.

[@FarmerFpv]

I made a nitro autogyro with an RC plane fuselage and tail feathers using 4-layer wood foam and Kevlar cloth and resin which was vacuum bag sealed for the blades. I made a jig to get the shape while the layers were drying kinda like making a skateboard deck. It worked really well once I had the tail feathers at the proper size. I'm really fascinated with Gyrocopters. Best of luck on the full-scale one. You will do great.

[@NicholasRehm]

Next up, cyclocopter? :)

[@ToverT]

LOVE the video AND the editing, as a fellow youtuber, i can tell you put in a LOT of effort. anyways, good video, keep it up

[@ErikNilsen1337]

I've eaten at a Greek restaurant once, so I know that it's really pronounced "auto-yee-ro."

[@ulrichkalber9039]

I know that too, have passed by a greek restaurant once.

[@skaldlouiscyphre2453]

In Canada it's an auto-donair.

[@LOKO22Bach]

This explains a lot, I always found the way the gyrocopter behaved in 7 days to die (videogame) was very weird, this video makes it clear to me that it actually makes a lot of sense.

[@Me-0063]

Just amazing... This guy can make everything fly... (Edit: Please make a flying boat)

[@SKITZIZZZZAKINGDON]

NO HE CANT, I NEVER SEEN A BOAT STARTING TO FLY FROM WATER. I BET HE CANT DO THAT. GNEH GNEH GNEH..

[@Me-0063]

@@SKITZIZZZZAKINGDON Or can he?

[@SKITZIZZZZAKINGDON]

@@Me-0063 NOW WAIT AND SEE IF OUR CHALLENGE GETS ACCEPTED..

[@Monkey_king124]

He has

[@goldendragon3147]

Peter made an Ekranoplan before, even, the video titled 'giant rc ekranoplan', its basically close enough and it could take off from the water

[@papamidnightfpv]

I think if the free spinning prop had controls like a heli and the fan had only rudder for yaw, then when you add throttle it pushes the craft forward and up like a pendulum gaining elevation. I think by having the 'gyro' style prop unrestrained it tilts back causing drag and lift but when you add the thrust vectoring rudder it increases the angle of attack exponentially but only on one blade which is why the crazy roll every time. The way you did it is different than I would but it's crazy you got it to fly :) I hope you build more of these love your work.

[@racingturtel5002]

Awsome nice video as always 😀

[@dividingbyzerofpv6748]

@8:50 gyroscopic effect countering a tip stall. Smarter Everyday did something on this a few years back. It is also why the Chinook is like the fastest helicopter in our inventory due to the blades countrring that gyroscopic flare from asymetric lift.

[@dividingbyzerofpv6748]

Dual bladed counter rotating gyrocopeter maybe?

[@cameronlapworth2284]

@@dividingbyzerofpv6748 no need no torque on autorotating blades hence no tail rotor. The flapping or teetering system works by automatically adjusting angle of attack. The advancing blade has more airspeed so lifts washing off some angle of attack the retreating descends increasing its angle. Result is equal lift around the disk. It also has the added benefit of equaling lift if you hit a thermal on one side or front first. In a fixed wing you often hit a thermal say on the left wing which tips the aircraft. In a gyro that blade lifts washing off some angle of attack the retreating blade drops so equal lift both sides and no bank or pitch change. I remember flying with a guy in an ultralight I was bored hands off the stick dangling my feet experimenting with gentle corrections sticking a hand out one side or the other and looked over at him and he was moving the stick this way and that swaying up down banking left and right I didn't even know any thermals had kicked off couldn't feel a thing. They are also fantastic in high wind bot only does it drastically shorten ground roll (I've literally taken off across a small grass airstrip and landed like a helicopter after it) but handled the 25 knot winds which had them grounded as they were across the strip. As I said very capable in high winds so long as you aren't travelling up wind because they are not fast or at least not safe at high speeds.

[@dividingbyzerofpv6748]

That I get. Mybresponse was to where he refers to the RCgroups thread on why the craft would stall out and roll over. Push a helicopter hard enough and they will all flare/stall due to the retreating blade lift differential because you can only compensate so far before it catches up to you. Double blades are a way to counteract that effect. Go watch the Smarter Every Daybepisode and rhe RC Groups thread.

[@dividingbyzerofpv6748]

And my response was directly related to the effect he was seeing in his plate going eigid and preventing the correcting factors for retreating blade lift differential. That effect he describes where the craft would try to pitch up then roll over. That is the torque I am talking about. Centripidal forces like trying to turn a spinning wheel in your hands ehich applies a felt force. The blades spinning are the same. If the craft is going to try to roll/turn on an axis, then other forces will apply. Craft trying to roll over due to lift differential, counter force is likely the noted flare. That is what I was addressing with the smarter every day video. And that is where it would be interesting to see if a dual blade setup countered the effect even if it was not ideal.

[@CobraDBlade]

Really looking forward to the full-size gyrocopter video. Partly because I had the hair-brained idea of using one to commute back and forth to work (my house and place of work both have long straight roads with no real obstacles that could work as makeshift runways). Don't worry though, I realized just how bad of an idea that was shortly after looking into the physics and mechanics of gyrocopters outside of movies.

[@cameronlapworth2284]

There's a group of gyro flyers Chelslovaki gyro blokes that have nice enclosed two seater gyros. To the main wheels they've fitted electric motors like you have on an ebike not sure of the power. They land at airports all over Europe then tie up the blades and run the gyros to the nearest town have lunch or stay at a bed and breakfast or motel then drive them back. They can do 40km/h on the road and are road registered in the EU.

[@halfrhovsquared]

@@cameronlapworth2284 - They are known as "Gyromotion", FYI.

[@cameronlapworth2284]

@@halfrhovsquared ta it's a great idea when you consider say the PALV and its expense and complexity - yes PAL-V have made a faster more capable vehicle on the ground but massively overweight and you'd never really use it as a daily commute. These guys for much less money and more importantly significantly less weight modified an aircraft that can actually land then safely drive to the nearest town to refuel, or stay at a B & B etc. Sure not fast but hey they've toured all over Europe. Beautiful design. These low end simple uses of electric vehicles are all amazing. Mike Patey slinging e dirt bikes, one wheels all really cool.

[@Tony770jr]

I have an RC gyro copter I got from Hobby King several years ago. It flies well, but like you said in your video, it takes a different skill set to learn to fly it.

[@kackenderkevin]

i love your videos

[@F5Tornado44]

Oh maaaaan, I can't wait to see you fly the full size one. I've dreamed of owning 1 of these when I was a little kid, pretty much all the way up to adulthood. You are living my dream now.

[@yetkinkaracal3346]

I would like to call this craft: Crash-Copter

[@DetroitMicroSound]

I often find myself wishing you more frequently made content, Peter!

[@RodrigoFernandez-td9uk]

00:11 Autogyro. Fully pedantic. It would be cool to see one in tractor configuration, like those of the 30's.

[@cameronlapworth2284]

Yea they make check out little wings autogyro.

[@eastoforion]

omg i have been obsessed with gyroplanes this month, great timing peter :)

[@tgapcharlie]

love these things!

[@fargus5038]

Peter, first of all great job! The only problem for me was understanding how the gyro worked. You didn't explain what was going on during flight. You said autorotation at one point, which clued me in on things, but other than that, I felt confused as to how the gyro was unique. It's obvious that the lift rotors aren't powered once you know that fact, but I didn't know that. I assumed they were powered for most of the video. Other than that, thanks so much for the video and I hope you get all the love you deserve on youtube.

[@kurtiskill2847]

Shoutout everyone who was here when the title said "isint"

[@peteroman4297]

I actually used to work on these before I began working on helicopters. You can call them “Gyrocopters” or “Autogyros” but you cannot call them “Gyroplanes”. “Gyroplanes” are actually different from a “Gyrocopter/Autogyros”. I’ve worked on them for quite a while.

[@coconutfleetsleeper5717]

Fun fact, you can sail a boat by the same principle if you put the rotor vertical;)

[@PepsiMagt]

If you want more stability in your gyrocopter do the following in order of preference: 1) Lower the thrust line and raise the centre of gravity. The CG needs to be higher than the thrust line, so that thrust will cause a pitch up moment. A low CG will make the aircraft dangerously unstable. 2) Put a big horizontal stabiliser on it on a long tail 3) Use a tractor configuration. Nice video

[@garbleduser]

Re-interest? More like REEEEEEEEEEEEEE interest.

[@t.iapsingh5651]

Funny

[@barneylegend1023]

The second I found out u uploaded my day just got 1000x better

[@fix_flix6976]

build auto pilot in it

[@petersmythe6462]

This is re-living multiple KSP engineering nightmares lol. Gyrocopters do like 80% of these things in Kerbal as well. Especially if you build them without mods or DLC.

[@markthomasson5077]

Dear Peter, great work. Very intrigued by how gyros / autorotation works. So glad to hear you say that the pitch is 1.5deg negative. Have seen and heard quite a few folks totally convinced that it is 1.5deg positive. I think I have the answer on what the main driving force is to give autorotation in forward flight. No one is considering the full rotation. Think of it as three quarters. The rear quarter the segment is towards the horizontal and in disturbed air, so not doing much. Now the forward facing segment has a good upward flow across its whole length, and the negative incidence causes it to rotate. This is where the major force comes from. The leading side segment gives drag, though this is somewhat balanced by the push from the trailing segment, though still an overall slight drag against rotation, but far less than the positive rotation from the front segment.

[@GreyWuff]

You should look up the Rotordyne, it's a gyrocopter that was being made for passanger service. It had at least 1 prototype that flew, but unfortunately didn't go into production.

[@exptodd]

Always superb to get a notification on a new Peter Stripol vid! Long time fan Man keep it coming! Thank you.

[@poobertop]

that was really impressive, well done. At times you could here the blades chuggin' like a full scale, cool!

[@stealhty1]

Excellent , what a coincidence,I purchase a Cierva C30 Model about 10 yrs ago are about to finish it this month, thank you for all the heads up

[@nagjrcjasonbower]

So glad you finally did it!

[@KrazyMitchAdventures]

I flew a RAF 2000 Gyro at Arlington Washington at the EAA Flyin, in 2007. They are a mess load of fun to fly.

[@airlemental]

I am used to watching you crash a few things at the beginning of one of your experimental builds, but wow. I’m scared to find out how many parts you had to make over and over. There were so many smashey smashey times. I’m glad you are persistent. ^.^

[@MrChris20912]

Always thought those looked fun to fly. Reminds me there's a towed version (no engine) hanging in the National Air and Space Museum Annex out near Dulles airport. Just this tiny little frame made to be towed on a rope or a cable behind a truck - I'm assuming for training purposes?? It's hanging in a corner, about a 100 feet from the Concord in the main hall.

[@saveitforparts]

I never knew how hard these were to get off the ground! Really cool video!

[@marcuscoquer5958]

The guy who built the bond Gyro copter lived near where my mum grew up. He actually landed at the school to show it to the kids when she was there!

[@valentino_govoni_official]

finally you back to youtube

[@MCsCreations]

Fantastic work, Peter! Well done!!! 😃 Stay safe there with your family! 🖖😊

[@ericgillespie2812]

Recognized it immediatly. Learned so much. Thanks for the upload!

[@JustGoAndFly]

my friend Al Ball who I used to serve iced tea to in the cafe 126 owned a Hughes auto gyro, which day he was showing to none other than harrison ford. Al always demanded his iced tea to be served a particular way. We made friends after I asked him about his auto-gyro and he responded with admiration at the correct usage of the term. RIP Al.

[@morkovija]

Amazing stuff Peter! Glad it's not just another quadcopter)

[@joelan93mtfworkshop89]

gyrocopters are awesome! my grandfather has been hand building and flying them for over 40years 👍 very cool machines

[@Sagetower7]

I am so happy to see you come back to the gyrocopter!

[@cooltool.nem.n.nem.]

Love how you don’t get disappointed or discouraged

[@twist44]

Cant wait for the files! Super super cool build. I have about a 50% success rate on getting rc autogyros to last more than a minute in the air. I am very impressed with the way that model flies. Especially with the wobble head!!

[@surferchickay]

Okay this is awesome because you added the history in the beginning. Super interesting!

[@larrydeboer9477]

A freind of mine was eperimenting with gyros several years ago. he came up with a gyro that had twin rotor blade sèts on a lateral boom. Each blade set tilted opposite of each other controlled by the aileron control of his transmitter.. It flew very well.

[@T3chpat]

Damn, haven't watched your channel in "a while" but the production value is really taking off! Keep it up 🙏🏻

[@memejeff]

Super cool man, really like that you made something that most people probably never have heard of. Thank you for the info, will build one of these babies myself.

[@gcolwill]

I built a GyroBee decades ago (Lazybee, but with a rotor on top instead of fixed wings) thinking the tractor configuration (prop in front) would be more stable than the pusher configuration (prop on the rear). This was my first and last (so far) RC aircraft build, so the fact that I wrecked it was probably due more to my inexperience than anything else. It did have three blades and that flexible triangle thingie instead of a proper teeter totter type rotor mechanism, so your video makes a lot of sense to me.

[@amitaimedan]

Always a wonderful day whenever you release a new video.🙏👌

[@lechugatwo5699]

damn sripol flexing at 3:00 what a nice surprise not spoiling it in the title

[@walk4718]

Totally cool!!! I remember the Benson gyrocopters that came in when I was a young teenager. I dreamed of taking one of those on a cross-country trip.

[@nikhayes3396]

Peter you are the perfect mixture of madman and scientists. Stay safe brother!

[@TheLocalScooterKids]

Holy cow your editing skills are really good now! Looks really nice compared to older videos! . good luck!

[@jannepeltonen2036]

It's nice to watch people do emergency landing practice on the real ones. They float down like maple seeds.

[@toiyabe_effect]

Use to see dudes flying these (home-built) in the 1970s at El Mirage dry lake in SoCal. For some reason, you don't see them much anymore.

[@murdoch9106]

I love helicopters! And damn it if Gyro's arent even cooler... we were gonna get a really cool one for MSFS 2020, a very fancy one, but it seems to been delayed, so sad! Anyway, this was super cool, watching the crashes hurts! Cant wait for more of this!! :)

[@bwc1976]

I was just beginning to wonder if they were possible in MSFS! So glad someone is already working on one.

[@williwonti]

Pretty smart way to engage the prerotator with the cyclic like that. I'm guessing it's just outside the usable range for the rotors?

[@joshpit2003]

I can't wait for the full-scale build series! And I really want your opinion on sketchy fixed-wing vs sketchy auto-gyro. Just don't do the one thing that you are never supposed to do in a gyro or you will bunt-it out of the sky. :-o

[@blahorgaslisk7763]

I used to see autogyros now and then when I was a kid. Now it's been a long time since last though. They were cheap and didn't need a long runway. I have a feeling there were a lot of these, relatively, built in sheds back in the 40's and 50's. When I grew up they were getting uncommon and I don't think i heard of anyone building one until sometime in the 90's. While they need a runway the takeoff distance can be kept very short and like shown in the video landing can be next to vertical using autorotation just like a helicopter. I remember my father explaining the takeoff procedure when I was 8 or 9 years old. I don't know if he ever bummed a ride, but I know he never piloted anything so it was probably something a pilot had told him. The only thing I really remember was that he explained that you don't start out at full throttle trying to build up speed fast, but instead go slow and easy so the rotor can build up the RPM. As a kid that went straight over my head. It seemed so obvious to me that more power equaled more speed and a faster takeoff. Well I guess that's all you can really ask from an 8 year old.

[@steveskouson9620]

Thank you for mentioning Ken Wallis! He was an amazing man! steve

[@kenshinbattousai374]

@PeterSripol I don't know if you still have this on the back burner, but have you considered going farther and doing a full swash coax gyro? It resolves your roll issue very well at scale, and let's you have some more disc inertia as well, lending well to heavier builds.