How will it fit? Glider engine retraction

[@itchy108]

Looks like a trapdoor spider

[@shanelipe2552]

Now THAT IS COOL .

[@hockeyguy820]

I'm assuming the centrifugal forces won't let the prop blades move forward much if at all while the engine is producing thrust.

[@PureGlide]

Yeah exactly right, for whatever reason even when they aren’t spinning much, they tend to stay open. Some sort of magic I assume

[@welshpete12]

There is a simple stop, that will not let it move forward.

[@hockeyguy820]

@@welshpete12: We're talking about each of the 5 propeller blades, not the whole engine assembly.

[@OnerousEthic]

@@PureGlide well, if they are not spinning much, they are creating drag, and that force pushes them backward and keeps them in place.

[@OnerousEthic]

That is some visionary engineering in my humble opinion…

[@larrymondello8475]

WOW 😂 Thank you

[@acward2007]

Oh that's satisfyingly slick 😀

[@adrianflower3230]

The Iron Thermal. I'd love one, or a Jet. You can get a jet sustainer kit for my LS4, but it costs more than the aircraft is worth 😮😀👍

[@PureGlide]

Yip love it!

[@valentinl2121]

Also - I find it a nice add. But also the fuel consumption of the Jet is cracy...

[@justcommenting4981]

​@@valentinl2121 why jet instead of prop? Speed?

[@valentinl2121]

@@justcommenting4981 The only sustainer you can upgrade a LS4 with...

[@safetyinstructor]

​@@justcommenting4981 jet is more compact. Speed does not matter with gliders

[@achecker7534]

Pure Beauty!

[@audigga4396]

Food for thought in scale RC gliders!

[@dustinwilson492]

I've seen it done with an EDF glider. Hot Fan I think was the name.

[@jono3079]

This looks like Homer disappearing back into the bushes.

[@PureGlide]

Haha yes!

[@PiggoNZ]

Hahaha brilliant

[@rickboerma3392]

Ah, that's what was happening behind me all the time.

[@kevinm.n.5158]

Should you be flying if you didn't know... I see too much Dunning-Kruger everyday

[@michaelsimpson9779]

A thing of beauty is a joy forever

[@AD7ZJ]

It almost looks impossible that the engine can lower inside enough for the prop blades to fit inside.

[@adriandocherty5350]

Well it looks like it does and I’m definitely sure that mine does as well!!

[@chuckcampbell3927]

🛫📖🛬 Hey Tim, Are we by any chance looking at your personal glider. If I remember I thought you said you had an electric motor option ❓

[@PureGlide]

Yip that's my glider. They didn't have electric motors back in 1987 when they built gliders I can afford haha

[@chuckcampbell3927]

@@PureGlide 🛫📖🛬 Thanks for the reply. Is there any sacrifice or trade-off in performance by having the extra weight of that motor on board? If so, can you approximately tell me how much and in what areas of critical flight situations, instead of being a help would it be a hindrance? How much does your glider weigh and how much does the motor weigh if you have the time to tell me. GOD Bless

[@immortallman3482]

What is the glider model?

[@PureGlide]

Ventus cT

[@TijsVsN]

Of course it will fit

[@PureGlide]

haha yes

[@MrPilotStunts]

Beauty

[@Swimfinz]

Nice!

[@PureGlide]

Thanks!

[@WONDERSHEEP]

Would you call that an outboard or inboard motor

[@PureGlide]

These are the things that keep me up at night :)

[@marklang5169]

Way cool

[@pilot3016]

These are typically what they call "sustainer engines". They can get you home, but usually not off the ground. There are exceptions.

[@PureGlide]

Yeah self launching gliders are becoming more and more common. Even electric versions now.

[@pilot3016]

@@PureGlide If ya got the big bucks. And I don't mean 200K

[@StoicIntellectual]

Example?

[@pilot3016]

@StoicIntellectual example of what? Sustained engines are small and only produce enough power to keep you airborne. (As long as they start, which is a major issue). Pilots say, it's a false sense of security.

[@pilot3016]

Correct on the cost.

[@user-cu2xi6mz7y]

uh upside-down head, 2 stroke is it?

[@EJ-74]

NIIICE 🔥

[@PureGlide]

Thanks!

[@I_am_archie]

Let's see it come back out.

[@Wilem35]

Where is the battery?

[@PureGlide]

I’ve got a big battery in the nose, that lowers and raises the engine. Cheers!

[@R.B_B]

Simple and effective. One thing I always curious about is how the non foldable two blades works

[@welshpete12]

Look up how an aeroplane wing works . It's exactly the same shape. It simple pulls the plane along. It's very similar to how a propeller works on a ship . But of course it pushes it , not pulls it .

[@R.B_B]

@welshpete12 That's not my question. I probably make wrong. My question is how the gliders with electric or gas powered retractable motors with two blade propellers align the propeller when they retract.

[@adriandocherty5350]

@@R.B_Bthey are generally used on self launching folders and the engine is in the fuselage and the pro is belt driven on a pylon and when the engine is stoped there is a thing called a prop brake which stops it when it’s online to fold away in the correct orientation.

[@norbert.kiszka]

I had a small fan (home cooler) with rubber blades (it can be safely touched when running at full speed). It was working many decades until I borrowed it and he put it in a bad way without supervision, so engine burned out.

[@excellenceinanimation960]

Anyone ever done a rocket glider and tried to get really high?

[@PureGlide]

We don’t need rockets to go high, instead we use mountain wave systems. Highest is the perlin project, 70,000 feet or something like that!

[@excellenceinanimation960]

I have been watchign there content but is that not a custom glider? I also, I live in the eastern US so we don't really have mountans like the Andes. I wonder if it could be done with solid rockets. I just don't think theres a long enough burn on them. Most of them expell there energy withing 5 seconds. I don't even know how to calculate amount of thrust needed to lift a glider not to mention structural bla bla bla. No way I could manufacture a liquid rocket engin with any semblance of safty / reliability. Also a pressure suit would be needed. I have a lot of stupid ideas lol. Id better just get my licence first!@@PureGlide

[@anshi_ad]

How much house power engine is this? .. Love from India🇮🇳

[@sukhnathoram1126]

100000 house power engine this is

[@anshi_ad]

@@sukhnathoram1126 OMG really?? Sir what is it's price?

[@sukhnathoram1126]

@@anshi_ad no I'm jocking

[@sukhnathoram1126]

@@anshi_ad It has actually 100 or 200 horse power

[@safetyinstructor]

It has a lot of house power

[@DanFrederiksen]

small turbofan jet would be much cooler. when is someone going to make small effing turbofan engines.

[@PureGlide]

Funny you should mention that, as they exist! They've been around about 10 years now. Unfortunately the glider I can afford is from 1987 :) Stay tuned I want to make a video about them. In the meantime google www.google.com/search?client=safari&rls=en&q=js1+jet+glider&ie=UTF-8&oe=UTF-8

[@DanFrederiksen]

@@PureGlide That's turbojet, not turbofan, important distinction. All airliners use turbofan engines, much more fuel efficient than the older turbojet type. The difference is that the jet engine drives a bigger bypass fan, a bit like a turboprop but without all the awful. turbojets are quite fuel hungry but the long distance record belongs to a turbofan engine. 40000km without refueling at 500km/h. aint no cessna doing that. small turbofan engines have the potential to totally revolutionize GA. yet no one makes such an engine. it's a travesty. a pressurized glider with turbofan engines and a wing built for 700km/h could be magic. private jet freedom for car money.

[@dasnailgame3520]

​@@DanFrederiksen i assume a turbofan is to big and to heavy to fut on a glider

[@DanFrederiksen]

@@dasnailgame3520 why would it be?

[@safetyinstructor]

​@@DanFrederiksen turbofans are much too large for gliders. The fuel efficiency gain doesn't really matter as you have this running only for a bit.

[@MqKosmos]

That's a horrible way of folding props o.o

[@PureGlide]

Oh I thought it was very clever!

[@montanafreeman1895]

I’ve never seen an engine with jug’s and spark plugs run upside down like that. I’ve seen glider’s with jet engines that hide.

[@OneTequilaTwoTequila]

Sure you have. You just didn't notice them. Every airplane with a radial engine that has ever been built has cylinders that run upside down. DC-3s, Beech-18s, WW1 biplane fighters, WW2 Navy fighters, Wacos, Stearmans, DeHavilland Beavers and Otters, etc.

[@Martbrant]

Kinda rouwdy design, services wrubbing and scratching against one another

[@PureGlide]

It's been working great for nearly 40 years!

[@paradoxicalcat7173]

It moves slowly, and the force is slight, so no damage is done.

[@stefanmargraf7878]

Nice!

[@PureGlide]

Thank you! Cheers!