In-Air restart of Rotax 912 ULS

Re: In-Air restart of Rotax 912 ULS

by Roger Lee » 9 years ago

Roger Lee

131 5.38k 5.44k

Hi Damien,

I have shut my engine off numerous times to practice landings and gliding just for fun. It usually starts right back up. If you run the system dry of fuel then I would full choke it and crack the throttle. It should start right up after a couple of prop turns.

---

Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell

Re: In-Air restart of Rotax 912 ULS

by Damien Graham » 9 years ago

Damien Graham

9 9 0

Thanks again Roger.

Re: In-Air restart of Rotax 912 ULS

by Garrett Wysocki » 9 years ago

Garrett Wysocki

1 572 1.45k

Here is another way to do it. :)
https://www.youtube.com/watch?v=VwPAiuu1dxw

Re: In-Air restart of Rotax 912 ULS

by Alan Arnold » 9 years ago

Alan Arnold

20 191 170

Hi Damien.

I routinely use all the fuel from one wing tank and then switch to the other. The engine restarts within 15 seconds or so of opening the other valve. I found that keeping the empty tanks' valve open for a minute or so that the system better vents air through the empty tank while filling the header tank.

Alan

Re: In-Air restart of Rotax 912 ULS

by Rhett Mitchell » 9 years ago

Rhett Mitchell

8 99 0

I have also run a tank dry. If I'm quick, and get the other tank open and the empty tank closed, it will splutter then catch and away we go. I don't have a header tank and need to get the empty tank shut off quick to get it pulling from the full one.

I tried an air start/dive with an instructor as per the video but was approaching VNE without the prop moving much.
He put it down to a new, tight engine.