PPRuNe Forums

PPRuNe Forums (https://www.pprune.org/)
-   Private Flying (https://www.pprune.org/private-flying-63/)
-   -   An interesting flying contraption (https://www.pprune.org/private-flying/669212-interesting-flying-contraption.html)

AnotherFSO 14th November 2025 07:50

An interesting flying contraption
 
I'm not sure how much protection a foam bike helmet would give him.


Jhieminga 14th November 2025 08:17

It's got wings on it.... that must help a bit!

ShyTorque 14th November 2025 08:33

I’ve never been that desperate to fly.

javelin 14th November 2025 13:24

Ace....... I want one !!!!

Thought they would have cut the grass better though !

IFMU 14th November 2025 14:31

That came up on my YouTube feed the other day and I watched it. Seems like they have a 2-stroke to get the turbine running like the Germans did in WW2.

Small Rodent Driver 19th November 2025 13:19

That's a flame retardant denim jacket right?

what next 19th November 2025 17:00

After 86 years of operational jet engines, this must be the slowest jet ever built :-) But he has a fire extinguisher (the smallest I have ever seen), a radio in an unaccessible bag next to him and a five-point harness with the buckle on his back.

IFMU 19th November 2025 17:27


Originally Posted by what next (Post 11992187)
After 86 years of operational jet engines, this must be the slowest jet ever built :-) But he has a fire extinguisher (the smallest I have ever seen), a radio in an unaccessible bag next to him and a five-point harness with the buckle on his back.

Other than that, I see no issues!

Pilot DAR 19th November 2025 17:56


a five-point harness with the buckle on his back
Yeah, about that... three of those five points are pretty well useless, and the two which actually could act to restrain him in a collision are going to immediately break both his collar bones. I can say from breaking one collar bone in a three point harness (in an entirely normal, certified GA airplane), that a shoulder harness is a good idea for an upper torso restraint. As for a whole body restraint, acting on the collar bones.... a much less good idea!

This is why such airplanes are identified as "experimental". It's as much an experiment to see if the pilot can survive, as if the airplane will fly!

fly-by-wife 19th November 2025 22:02

It should be called The Crick-maker, neck.

cavuman1 19th November 2025 22:51


Originally Posted by fly-by-wife (Post 11992354)
It should be called The Crick-maker, neck.

I am reminded of this tale by your post, fly-by-wife:

A man visits his physician's office with a "crick" in his elbow. The receptionist asks him to have a seat and fill out voluminous forms and to give a urine specimen. He says: "Why do you need all of this information and a urine specimen. All I have is a crick in my elbow!" She tells him it's standard office policy and hands him a cup. The man waits and waits. After forty-five minutes, he says aloud:"To Hell with this!", as he storms out of the office, empty cup in hand.

On the drive home, he has an idea. When he arrives, he gives a specimen and gets his wife to do the same. Later that evening, he convinces his teenage daughter to contribute. The next morning, he collects urine from his dog!

He drives back to the doctor's office, enters the anteroom, and apologizes to the receptionist for his angry behaviour the previous day. He hands her the specimen cup which is full to the brim with yellow liquid. She asks him to have a seat and tells him that the doctor will see him in a few minutes. The man sits down and starts thumbing through an outdated Field and Stream magazine. Moments later, breathing hard, the doctor bursts into the waiting room! He says in a loud voice: "Your wife is in menopause, your daughter is pregnant, your dog's going to have nine puppies, and if you don't stop wanking off, you're going to get a crick in your elbow!"

- Ed Dangerfield

EXDAC 19th November 2025 23:04

This is a weight shift, self launching, ultralight glider. It would perhaps be appropriate to compare the performance, flying position, and safety features with hang gliders.

What surprised me was how quiet the micro turbojet seemed to be. I have launched in a turbojet powered glider and the scream was much louder.

Bottom line is the pilot of this "one off" seemed to be enjoying himself. What else should anyone expect from recreational aviation?

Pilot DAR 19th November 2025 23:23


flying position, and safety features with hang gliders
I am far from weight shift/hang glider knowledgeable, but as I simply look at this aircraft, and consider what I think of as a hang glider, I thing of the hang glider as being characteristically less likely to harm the pilot in an out of control landing. In a hang glider, I think of a pilot suspended in a harness, behind a bar, which considering the mass of the aircraft, offers at least some protection - and the harness would allow the pilot to be pushed back and up in the case of a crash, and forward rollover.

In this aircraft, I imagine that any out of control landing will result in at the very least, an face plant for the pilot, or a rapid deceleration, and injured collar bones. I see nothing in the arrangement which protects the pilot from a severe upper body,/neck injury.


Bottom line is the pilot of this "one off" seemed to be enjoying himself.
Yup, I agree with you there. I think of videos of skateboard "operators"? who for reasons seemingly of their personal enjoyment, don't use the skateboard wheels, but rather slide it down a handrail - and then end up with their face in the concrete. As a knowledgeable society member, I feel an obligation to "look out for my fellow person" - perhaps by warning of what may be an outcome not considered. But.... I do accept the reality that in a free society, people are entitled to take risks, and do things which other (perhaps more knowledgeable/experienced people) would not think to do...

I spent 28 years as a volunteer firefighter, attending all kinds of requests for emergency service. In many cases, I arrived to a bad outcome that the patient had mitigated as best as possible (seatblets/lifejacket/helmet/work boots/saw guards/chainsaw chaps etc.). Other times, it was a "what were you thinking?" situation. Either way, someone got hurt, and society bore the cost of the response/rescue/medical care. Sometimes, society just has to cover the cost of the risk for someone else to enjoy themselves....

scifi 20th November 2025 08:43

Anyone notice the aircraft on the flight-line with only one wing..? The experimental sycamore concept airplane. Watch his next video..!

chevvron 20th November 2025 11:41

It uses the same flying position as Wright Flyer No 1 back in 1903.

EXDAC 20th November 2025 12:02


Originally Posted by scifi (Post 11992522)
Anyone notice the aircraft on the flight-line with only one wing..?

I noticed that the video was made at a gliding field and that several gliders were out of their trailers. Gliders don't usually fit well in the trailer with the wings on. Pull the fuselage out, fit one wing, fit the other wing, fit the horizontal stab. Pre-flight and go fly. Reverse the sequence to put the glider away.

B2N2 20th November 2025 13:01

The buckle on his back seemed uncharacteristic for Japanese engineering.
He gets to log turbojet PIC though…

EXDAC 20th November 2025 16:33


Originally Posted by EXDAC (Post 11992388)
This is a weight shift, self launching, ultralight glider.

Roll control appears to be by ailerons that are controlled by body lateral movement. Not sure if pitch control is only weight shift or if there is a mixed input to the ailerons (elevons?)

Some good photos here - https://commons.wikimedia.org/wiki/Category:JX0122_(aircraft)#/media/File:OpenSky_M-02J_PC086440.jpg

Expatrick 20th November 2025 18:01

Should have called it "Jaws"!

340drvr 21st November 2025 09:23

Reminiscent of a miniature Flight of the Phoenix.


All times are GMT. The time now is 10:13.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.