Aterizari

Prima aterizare cu o singura aripa de care am auzit se referea la un F-15 israelian, pilotat de un pilot uman aflat la bord.

Multa lume, inclusiv eu, am zis ca e hoax...
Apoi, m-am gandit ca portanta pe fuselaj la viteze mari , combinata cu raportul aproape unitar tractiune/greutate sunt poate suficiente pentru aterizarea cu o singura aripa.

Pe de alta parte, azi, am dat peste acest filmuletz. Este vorba de o aterizare intr-o singura aripa pentru un model RC Yak-54. Probabil raport tractiune/greutate supraunitar. ( https://www.youtube.com/watch?v=hOBB_-gZFNo )
Nota: marele meserias Jim Bourke zboara in realitate un Yak-54
Discussion - Video: Safe landing after wing falls off

Sursa: rcgroups.com/forums
Data: 30.09.2008
Autor: Jim Bourke

Citat :

On Saturday we had a Chili Feed and Fun Fly at the local club. I showed up and was hoping to fly my 1/3rd scale Cap 580 model. Unfortunately, I had a problem during the flight and was forced to abort after only a few moments in the air.

A friend, Keith Ellis, felt a little bad for my situation and offered to let me fly his Yak-54. That seemed fitting, since I fly Russian Thunder, so I jumped at the chance.

I've flown Keith's model previously and it is a nice flying airplane. He broke the wing somehow and recently fixed it. We went over the repair and everything seemed solid. Unfortunately, it didn't hold together as well as we had hoped.

I started out flying in a careful way but as the flight went on I became more comfortable with the airplane. I started doing knife edge passes and spins. I did a few tumbles. Everything felt good so I did a knife edge spin. I made some high speed circuits across the field. The plane was really grooving and I was enjoying myself.

But then I did a snap roll at full throttle at mid-field and the left wing abruptly departed the aircraft. There was no warning, and I don't remember hearing anything. It just came off and started fluttering down.

The aircraft bobbled a bit as I held in what seemed like the proper correction. After a few seconds I found the new centering position needed to keep the plane trimmed in stable knife edge flight. I coaxed it around the field, lined it up, and prepared to ditch it on its side off the runway, but instinct took over, I guess, and I put it on the runway right side up instead.

I think this was a once in a lifetime opportunity. I've practiced the scenario on the RealFlight simulator many times, and I credit that experience with my ability to bring it in wheels down. I never thought I'd get a shot to do this in real life. Secretly, I've always hoped for it.

After the event we all sat and talked about it for quite awhile. We all agreed that it was pretty cool. Luckily, one of the club members, Mark Wilson, had a video camera running. Eric Olsen was there to take pictures.

Jim

Inca imi aduc aminte ce flame si discutii au iesit pe tema lui F15, in D13-th forum.

si pe cartula de asemenea, si de aceea imi rezerv dreptul sa tac la acest subiect, si sper ca intr-un moment de nervi sa nu-l sterg
p.s. nu o sa fac asta, dar sper sa nu ajunga la 30 de pagini de discutii interminabile si fara rost...
oricum imi mentin parearea: reclama, sufletul comertului.

Se recomanda consultarea unui manual bun de aerodinamica, iar pentru cei hotarati cartea Tehnica Zborului in
Aviatie de Traian Costachescu. daca apar manifestari neplacute adresati-va medicului sau farmacistului.