Twin jet Aerobatic Glider by Bob Carlton

[@stephenjimenez6129]

It’s amazing those wings, (with that much length), can take that aerobic load. Interesting lines, the design reminds me something of a U2.

[@trueairspeed130]

It does!

[@AmericanCitizen-nf9xc]

U2 was one of my favorite bands in High School. Wings are delicious with ranch. Size doesn’t matter that much. There are many forms of aerobics. I was partial to Jazzercise in the 80’s. Keep it real mi sista!

[@vigilantobserver8389]

How'd those wings handle the stress? Amazing. I've seen the U-2 take off with about a 65 deg. trajectory. The pilot was keeping his hours behind the wheel current. This plane reminded me a LOT of the U-2. The U-2 is called "The Dragon Lady" because of it's narrow window of flight. If too fast, then the tail snaps off. Too slow, then the engine stalls.

[@johnnywad7728]

@@AmericanCitizen-nf9xc LoL

[@johnnywad7728]

@@vigilantobserver8389 was driving down highway next to gliderport near my home. Looked like a u2 landing. Huge but this wings

[@BrandonMarshall547]

Mini U2 😂

[@trueairspeed130]

pretty much :)

[@Mr.COPTY001]

😂 Underrated comment...

[@SomeoneCalledAdrian]

if you wear a pressurized suit 😂

[@N1originalgazza]

Beautiful machine....with the lift provided by those long wings it doesn't need huge engines!

[@trueairspeed130]

Indeed!

[@C-130-Hercules]

Wing loading has left the chat.

[@trueairspeed130]

:)

[@chrisglen-smith7662]

I think when you fix 2 jet engines to a glider it is no longer a glider 🤣. Especially if they are not retractable like a sustainer engine on some gliders.

[@trueairspeed130]

I have seen some cool retractable jet engines on a glider. They definitely have some.

[@chrisglen-smith7662]

@@trueairspeed130 absolutely and really cool. This is really cool too! 👍

[@Fidd88-mc4sz]

I would argue that gilders with "sustainers" are not proper gliders *either*. Part Of the skill of flying gliders is never finding yourself in a situation where one would be needed. Reliance on the one you fit working when required is absolutely going to kill you on the day it fails to work.

[@trueairspeed130]

I respect you as a purist, in this case it was designed for aerobatic shows

[@chrisglen-smith7662]

@@trueairspeed130 I wonder what sort of pilot license it requires? Been years since I was a solo glider pilot (in the UK) so I can't really remember the legalities anyway.

[@edspencer7121]

And when he runs out of fuel, or flames out, he can catch a thermal to the next airport....😮😮😮

[@trueairspeed130]

Right!

[@gregkinion4378]

One of those swooped down on my car at a ranch on E. Walker River, NV. Super cool 👍

[@trueairspeed130]

Very cool

[@JPspinFPV]

That's a pretty sexy aircraft.

[@trueairspeed130]

I agree.

[@JPspinFPV]

@@trueairspeed130 I might just have to do a 3 meter model with twin EDFs.

[@trueairspeed130]

@@JPspinFPV Bob would get a kick out of that, if you made 2 he might buy one from you.

[@JPspinFPV]

@trueairspeed130 - Do you know if he already flies RC models?

[@caleroby9483]

Very cool! A glider that doesn't need the tow aircraft. And hit the little turbofans Fer some ZIP an altitude to sore all day! Very Cool!

[@AmericanCitizen-nf9xc]

Pretty impressive but not many people have an extra $100k lying around.

[@trueairspeed130]

I think it may have cost a little more than that, + Bob is using it at air shows, vertigoairshow dot com I believe

[@AmericanCitizen-nf9xc]

@@trueairspeed130 sorry, I don’t understand your reply.

[@AviationWP]

100k per plane, per jet engine, and for fuel, and for insurance, maintenance, inspections, storage... 30k, 400k, 500k...

[@smitadam7108]

хорошо когда они есть

[@dominiklesniak4809]

Worth mentioning, that the fox glider has been actually designed by Margański & Mysłowski design bureau.

[@trueairspeed130]

Absolutely

[@Mongoliantreecow]

That's so cool that they finally finished it!!! Congrats bob!!!

[@trueairspeed130]

Indeed Congrats to Bob and his crew.

[@oneup8]

I hope the structure can handle the stress

[@DavidGilesColorado]

I was thinking the same thing, but it clearly seems to handle it. I wonder how fast top speed would be I know never exceed speed is 155. I gotta figure it will do more than that.

[@trueairspeed130]

aerobatic gliders are very strong and Bob has been engineering stuff like this for a while.

[@alpacalipsprofit9610]

They are only about 10x as powerful than ones used on high end RC planes so I think he's good

[@kkteutsch6416]

It's just that I thought observing the maneuvers and the long wing....

[@noah5889]

You hope the all composite glider can handle the load?….

[@cybervand]

The mdm-1 fox is labeled as a aerobatic glider and the wings can handle 9gs of force! Maximum speed: 281 km/h (175 mph, 152 kn) Stall speed: 84 km/h (53 mph, 46 kn) g limits: +9.0/-6.0 (one occupant), +7.0/-5.0 (two occupants) Maximum glide ratio: 30 Rate of sink: 1.0 m/s (200 ft/min)

[@trueairspeed130]

In other words it will be fine

[@jamespruitt3159]

Looks like the wings would snap off. 🤷‍♂️🤷‍♂️

[@trueairspeed130]

surprisingly strong

[@russellbarbee6974]

Strong wings, perhaps, but too long for this application. It's not going to glide too well anymore, carrying all that extra weight. How much fuel does it carry, and how heavy are those little jet engines?

[@andrzejszymanski4593]

The glider itself is " FOX" made in polan . Constructor's name is Edward Marganski.

[@trueairspeed130]

that is correct.

[@marksmith1902]

Wow Bob that has to be a Wild Jet to fly ... good to see your well and still flying .

[@trueairspeed130]

:)

[@dougnortman1196]

Might want to check the definition of glider. The twin jets kind of disqualifies the plane from the glider category.

[@trueairspeed130]

actually the FAA signed off on it as a glider :) a motor-glider

[@johnnywad7728]

Having grown up near a glider port,I've often dreamed of such a aircraft. However I was thinking of more if a ram jet set-up. Pull a lever and the nose cone retracts to scoop air in and a ram jet engine somewhere in the fuselage near the tail. They already carry ballast water in the wings. Modify them into fuel tanks for JP5. Seems to me like this would work. With spark ignition from battery and a solar panel or two ,for continuous charging.

[@trueairspeed130]

They actually didn't put fuel in the wings, that's what I thought initially, it was easier to put some small tanks in the fuselage.

[@johnnywad7728]

@@trueairspeed130 right. That was a dream I had for a sailplane with a ramjet. But it's probably the same thing with my dream sailplane,better to keep to weight on centreline that to have to complicate things with maintaining fuel balance in each wing. Thanks for responding

[@bizzzzzzle]

@@trueairspeed130also, as you use the fuel, you lose your ballast

[@Jambandit15]

I love what gliders have evolved into. This is awesome.

[@trueairspeed130]

:)

[@rickybo6862]

Back in the 80s I was at the Le Bourget Air Show, there was a similar glider built by an Italian company Capproni Vizzola

[@trueairspeed130]

👍

[@a.s.p.r5278]

That is totaly amazeing id love 1. Why didnt anyone think ov putting 2 small jets on a glider before drrr it make sence grate job 😊😊😊😊

[@trueairspeed130]

glad you like ig

[@clivestainlesssteelwomble7665]

It was done firs a long time ago in the 1950s/60s by a French aircraft manufacturer. Single engine in a centerline pod above the wing behind the cockpit. Large model GTb engines started the trend again on aircraft like the CriCri and gliders like this. 😎🧙🏼‍♂️

[@larrymondello8475]

Absolutely amazing thank you

[@trueairspeed130]

You're very welcome

[@pilot3016]

That's one amazing Red Line for a Sailplane.

[@trueairspeed130]

indeed

[@uralbob1]

Amazing bird! Beautiful!

[@trueairspeed130]

It really is!

[@rutgerolsen5157]

They are incredible aircrafts to fly in

[@trueairspeed130]

agreed

[@dwightbernheimer331]

A jet-propelled glider... Taking all the fun and sounds out of gliding😂😂😂😂😂😂😂😂😂😂😂😂😂😂

[@trueairspeed130]

glad you enjoyed

[@john-martin]

Gives titanic submersible vibes

[@trueairspeed130]

I hope not

[@clivestainlesssteelwomble7665]

It's a fully aerobatic glider to start with so high g rated just need to check the mounts for thrust and add some strategic re-inforcement... replace and update Sooner rather than later 🤔😉

[@DerekSouthland-rv1ze]

Good thing it's not yours

[@Coyote27981]

People die every day doing way boring stuff. Flying is risky in itself ... sure you can argue about having the fuel system inside the cockpit ... but at least he won't take anyone down with him. So let him enjoy his creation, that looks like lots of fun.

[@Alexandro123-tr4mb]

Can anyone tell me which spar is used on this wing?

[@trueairspeed130]

I’ll try and find out

[@carledinger3422]

Beautiful ❤️‼️👍

[@trueairspeed130]

👍

[@KingHaggis]

What an AWESOME plane, just awesome!

[@trueairspeed130]

indeed :)

[@jordanwatkins3827]

Genius, I've always wanted to do this as soon as the small rc planes engines started getting bigger.

[@trueairspeed130]

they are definitely bigger now, but not cheap :)

[@TheTAD22]

Beautiful

[@trueairspeed130]

Thank you! Cheers!

[@lauraradigan4114]

Love it. Wish I had the money to do my SZD59 like that.

[@trueairspeed130]

how much does it cost?

[@trevorharper9986]

I Want one hehe those would be fun to fly

[@trueairspeed130]

I think he makes them for people or at least the conversion

[@ellnegro]

Looks like you can red line in a heartbeat and that little speedster😮😮😮

[@trueairspeed130]

I wonder what is red line in a fox glider

[@RandyHodder-z1k]

Where do I sign up!!!

[@trueairspeed130]

Not sure Bob is giving rides

[@RandyHodder-z1k]

@@trueairspeed130 I'd be willing to pay $500.00 an hour for duel...10 hour block time♡♡♡..

[@Alexandro123-tr4mb]

What is the distance from the front tip to the leading edge of the wing?

[@trueairspeed130]

not sure, but its a fox glider made in poland

[@dano4572]

beautiful

[@trueairspeed130]

Thank you! 😊

[@markrowland1366]

That is about five hundred horsepower. More powerful than a Sherman tank. Pop!

[@trueairspeed130]

if you say so :)

[@DanFrederiksen]

Nice. You should take it to U2 heights, see what it can do :)

[@trueairspeed130]

I’ll let him know your suggestion

[@mikedineen7857]

I like it!

[@trueairspeed130]

👍

[@LOSCABOSLIFE]

Great part about jet power on a glider, you can run out of fuel on purpose and not stress out about it. 🤘

[@trueairspeed130]

exactly

[@mbc9290]

Perfect combo

[@trueairspeed130]

👍

[@dewdrck63]

Wow must be nice like to see you race and do acrobats with a f16 or f18

[@trueairspeed130]

would be. :)

[@worldclassish]

The big engines make for a poor glide ratio when off I would think.

[@trueairspeed130]

indeed they do.

[@Allan_aka_RocKITEman]

Climbs at 3K feet per minute?! *WOWZERS.*

[@trueairspeed130]

👍

[@Whosaids0]

You best be sure those jets is not going to fucking fly off. Looks like you putting a lot of strain on that chassis, Dom.

[@trueairspeed130]

aerobatic gliders are very strong and Bob has been engineering stuff like this for a while.

[@gimigimi1299]

If it can carry at least 500kg, straight to Ukraine. Engineers there will make a good drone from it with 1000km range😮

[@trueairspeed130]

this is for fun.

[@lucianosantucci108]

I’m a purist that’s why I sailplane - but I’m having so much fun.

[@trueairspeed130]

good for you!

[@digger105337]

Did you reinforce the area the engine's attached to? And will the structure handle all the force the jet engines will subject the airframe to? I sure hope so, or the next vids about the breakup of the plane in flight will be Sad.😢 Wouldn't think a glider would be stoht enough for that mod. 🤞

[@trueairspeed130]

gliders are very strong, most made of carbon fiber these days. Bob has a lot of experience working on these, and hasn't had any issues.

[@gureno19]

Nah mate, he just ducktaped them on an the FAA inspected it, granted him an experimental registration and off he went.

[@trueairspeed130]

funny

[@derek2593]

So, you built a U2.

[@trueairspeed130]

👍

[@Kenneth-jj8po]

A mini me U2😊

[@michaelpipkin9942]

Those mountains remind me of Nellis. Nevada or Utah mountains. Maybe Cali?

[@trueairspeed130]

South West of Phoenix

[@michaelpipkin9942]

@@trueairspeed130 There ya go! Thanks, seriously.

[@FNHaole]

Looks like an A-10 made a baby with Karen Carpenter. 1/2 of what’s keeping those wings attached under those loads is just hope!

[@trueairspeed130]

It’s aerobatic glider so it can handle the loads

[@korycoleman8971]

That is frikken awesome, pure joy ,long as never push wings too hars but boy it looks n flys like me 262❤❤❤

[@trueairspeed130]

Thank you for the kind words

[@TONY...GTB6]

+9g and -6g limit. 😮

[@trueairspeed130]

👍

[@cesarjaviergaona1813]

Que belleza hermano

[@trueairspeed130]

👍

[@jordanwatkins3827]

What did you use for a fuel tank? How much fuel ?

[@trueairspeed130]

ill try and find out for you.

[@TheNefastor]

Glider ? Someone didn't understand the assignment 😂. Though that noise coming from what looks like a glider is really weird 😅

[@trueairspeed130]

FAA says it's a glider :)

[@davidcook8323]

Two 250 lb thrust jet engines give me more than enough motivation to buy lessons, a glider and two jet engines. I'm newly retired and need an expensive hobby to keep me out of my wife's hair.

[@trueairspeed130]

You can do it!

[@douglasgreen437]

Everyone gangster till the wings come off..😮

[@trueairspeed130]

Ok

[@randomguyinanglider]

The fox takes more load then an F-16

[@MatthewOnAMissionFromGod]

Is the airframe reinforced in proportion with the Increased stress that will exerted onto it now that the glider is jet propelled?

[@trueairspeed130]

I hope so

[@randomguyinanglider]

I dont think that it would be neccesary, the fox can already take up to 10gs

[@kurtdobson]

BRS would be a good idea…

[@trueairspeed130]

Not enough room left in fuselage

[@SkypowerwithKarl]

Never exceed manufactures maximum air speed. This means dives too.

[@trueairspeed130]

👍

[@Biohack-1]

I plan to build a glider with a jet engine, the engine itself will be in the tail section of the glider, built into the body, and an air intake will be connected to the engine from under the glider body, like on a fighter

[@trueairspeed130]

I look forward to see it.

[@uhrzeit7764]

the F-16 for the little small Dollar is build 😂

[@trueairspeed130]

one way of looking at it

[@camobubba98]

How much fuel does it hold and how long can you burn the engines for at full throttle? Thats so cool. Id get it as high as possible, for a long and beautiful glide back down 😅

[@trueairspeed130]

in theory you could hold fuel in the wings if you wanted to, but in this case they only put enough in for maybe an hour of operation in tanks installed in the fuselage.

[@sherzaiasim]

WOW👌 it is impressive kudos to the pilot and in Inventor i am sure glider is reinforced ro handle the g forces U2 flying many successes in your adventures

[@trueairspeed130]

thanks for the encouragement, I will convey to Bob, and hopefully get a longer video out about his adventures.

[@stewie84]

Insane

[@trueairspeed130]

Indeed

[@rickyminjarez44]

You old cats are nuts!

[@trueairspeed130]

No kidding

[@ElJeFe556]

3000ft per minute....? Less than a mile per minute is under 60mph if im not mistaken.

[@trueairspeed130]

Not sure about the calculation but possibly

[@charvais]

5,280 feet in a mile, so 3,000 is 57 % of a mile. So 57% of 60 mph is 34mph. But that's vertical speed not air speed. It can go faster vertically but only for a very shot time while doing aerobatics. Your welcome!

[@polarking888]

How hard is maintenance on this aircraft ?

[@trueairspeed130]

It sure

[@Welderman007]

Waiting for the wings to rip-off

[@trueairspeed130]

they won't

[@LG-qz8om]

Looks like he could easily overstress his wings and break them off. I hope he has a parachute.

[@trueairspeed130]

aerobatic glider with a lot of strength.

[@randomguyinanglider]

The fox can take the same G load as an F-16

[@LG-qz8om]

@@randomguyinanglider Wow! Thats pretty i tense Engineering. I hadn't expected them to be engineered to that level. Thanks for the data.

[@thegamegroup4390]

Imagine how high you can get that thing with oxygen mask

[@trueairspeed130]

Sky’s the limit

[@ronanorion]

Epic 👏👏👏👏👏👏

[@trueairspeed130]

👍

[@cortezcortez7925]

Nice

[@trueairspeed130]

Thanks

[@bizzzzzzle]

The question is, how quickly does it use up that fuel. I’m guessing 20 min if that.

[@trueairspeed130]

probably

[@murmuchannelsm]

Sir this aircraft price

[@trueairspeed130]

Not for sale so I don’t know

[@Alfred_The_3st]

Where does one buy these engines?

[@trueairspeed130]

not sure, someone will know in the comments

[@Alfred_The_3st]

@@trueairspeed130 hope so lol

[@antd8667]

Now if they made the engines retractable

[@trueairspeed130]

I have seen one with twin retractable engines.

[@sfelton8943]

So is the verdict that this thing not only works but can fly around without eventually needing to land etc? Can it take off without the assistance of another airplane? If so coolest thing ever.

[@trueairspeed130]

self launch

[@Your_local_algerian_sprunk]

Price?

[@trueairspeed130]

Not available

[@beanohughes797]

What’s it’s Glide ratio

[@trueairspeed130]

Fox glider factor in some drag from the setup

[@earbeanflores]

Wait when he said "2 250 pounds thrust engine" does he mean each of those bad boys produce 250 pounds each or 250 pounds combined?

[@trueairspeed130]

combined probably 250

[@byronlovesdrifting1]

@@trueairspeed130 Max takeoff thrust of the PBS TJ100 is 280lb. Thrust is per engine

[@choppergirl]

I'd paint mine all black like a U-2. Fortunately, I've got way cheaper ways to fly fully aerobatically.

[@trueairspeed130]

it's about the fun of doing something unique :)

[@i.r.wayright1457]

Poor man's U-2.

[@trueairspeed130]

sure

[@DavidGilesColorado]

Range? Cost per hour?

[@trueairspeed130]

I don't think it's used in that particular way, but he told me it will burn 80gph on take off, then he gets it down to 35/40 gph, the engines aren't very efficient but they are light weight considering the thrust they produce.

[@AmericanCitizen-nf9xc]

Most indoor ranges have a cost of $10-$15/ hr. Outdoor ranges tend to be less expensive. Some offer memberships where you can come at anytime. More expensive but you get much more time for your money.

[@RandyHodder-z1k]

If ya gotta ask ya can't AFFORD IT...

[@michaelwilber9889]

If it has an engine on it. Its a jer.😂

[@trueairspeed130]

good one

[@Mr.COPTY001]

If You Asked Me Before This Video What's the last thing to do With Glider I'd Say Aerobic Stunts....

[@trueairspeed130]

😩

[@randomguyinanglider]

The fox can take more g-load than an f16

[@crystaltears9703]

Woah, just two comments for a jet glider! Cmon.

[@trueairspeed130]

I know ... :)

[@anthonyburke5656]

Only in America!

[@trueairspeed130]

Hell yeah

[@DouglasNicolier-s9f]

Try to set an altitude record with it.😊

[@trueairspeed130]

its' for aerobatic shows :)

[@DouglasNicolier-s9f]

@@trueairspeed130 Yes this is true...but with a bit of oxygen and the right gear you could get extremely high. It has the wings and power plants to do it..

[@zeeshaneastchem7387]

how high this mini u2 goes

[@trueairspeed130]

not sure, being used for aerobatic shows.

[@klayt2024]

I wonder if it’s easy to exceed “g’s”.. those high aspect ratio wings look like they’d snap like a twig 😕

[@trueairspeed130]

maybe

[@thebuonocore9818]

Wouldn't that make it a glider no longer?

[@trueairspeed130]

still a glider :)

[@antd8667]

At 20 gal per hour pr engine

[@trueairspeed130]

about right

[@michasshow]

I love it ❤❤❤ i fly a fucking DA40 i fight for every 100fpm😂😂😂

[@trueairspeed130]

👍

[@m72m72]

Polish glider

[@trueairspeed130]

fox

[@tratzum]

Id be really concerned that the wings cant take the gs. Pull too hard and you die in a fiberglass taco

[@trueairspeed130]

it's a fox glider made for aerobatics

[@Zentinel_85]

No offense but if there’s engines on it it’s not a glider….

[@trueairspeed130]

they are called self launching gliders, for real, or motor gliders. You only need an endorsement / sign off on your glider license to be able to fly them.

[@Zentinel_85]

@@trueairspeed130 I think it’s awesome as hell and I want one, but if I put a rocket on a leaf it’s a damn plane now…