rcjetsaok

My Feedback: (7)

Any P-20 guru's out there can tell me the distance needed/recommended between engine exhaust nozzle and bellmouth of pipe for proper thrust/cooling performance ?? My first experience with this little guy. It's cuter than a bug though !!!


TIA,

Danno

Dieselman1220

My Feedback: (25)

Call Tam and ask him

Dave Wilshere

depends on the pipe. On my 48mm pipe 15mm gap

Dave

Henke Torphammar

On the small engines its even more important to get it right. You can easily waste 30% of the power if doing it wrong. I always test before installing to really know. Static thrust is the most important with these small engines as when airborne you can fly anything on very little thrust :-P




[youtube]http://www.youtube.com/watch?v=adO9NiI7edA[/youtube]

Chris Pyrah

Hi
20mm from end of turbine to lip of thrust pipe is where I have mine and works very well

Dave Wilshere

Yep...L1 take away 20mm = 15mm

Depends on the pipe like I say. JC's measurement on the bell which vary is misleading. Its the tail pipe to hot tube that is critical

Dw

Henke Torphammar

This is not optimum! There is a diffrence between well and perfect, some don't bother while others do