So *that's* why it stopped...
Discussion
One day last summer, I was down at my old local park flying one of my model helicopters. All was well as I tore the place up with some FFF, loops, stall turns etc when I heard the revs increase slightly and the exhaust stopped smoking. I immediately flew it back over towards me but before I got it back, the heli went very quiet very quickly - the motor had stopped dead.
Fortunately, despite having all of ten feet in height and fling nose-in towards me, I managed to autorotate it safely. More luck than judgement I think, but perhaps it was the hours on the sim that were coming into play...?
The cause of the stoppage was a fracture in a fuel line that had let air in. This had leaned off the mixture and siezed the engine.
Anyways, I finally took the motor out today and this is what I found...:
Whoops...
I assume this swarf wasn't supposed to fall out of the engine...?
Trusty old TT 39 Pro reduced to scrap metal
Replaced with a shiny new OS Max 37 SZ-H
Let's hope this one is OK...! (Yes, I have replaced all the fuel lines...!!!)
Fortunately, despite having all of ten feet in height and fling nose-in towards me, I managed to autorotate it safely. More luck than judgement I think, but perhaps it was the hours on the sim that were coming into play...?
The cause of the stoppage was a fracture in a fuel line that had let air in. This had leaned off the mixture and siezed the engine.
Anyways, I finally took the motor out today and this is what I found...:
Whoops...
I assume this swarf wasn't supposed to fall out of the engine...?
Trusty old TT 39 Pro reduced to scrap metal
Replaced with a shiny new OS Max 37 SZ-H
Let's hope this one is OK...! (Yes, I have replaced all the fuel lines...!!!)
Edited by Roop on Saturday 26th January 15:59
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