Magnum .40 questions

1. What would be a good prop to use, mabye a 10X6?

1. Max RPM?

2. How to start. How many turns should needle valve be opened?

Thanks in advance!

-- Scott Gotta Fly or Gonna Die

RV-4 ============================================== Here's a link to the engine on the Hobby People web site Here's the link to the manual, it's a 237k download Some of the relevant info

Propeller Size Recommendations XLS 40 Engine

8.5 x 6 9 x 6 9 x 7 10 x 5 - use for break-in 10 x 6 10 x 7 11 x 5 11 x 6

Ideally you want a propeller that the engine will turn in the 13,000 -

16,500 R.P.M. range on the ground, yet power the airplane sufficiently.

Starting point for high and low needles is 2.5 turns from closed

Which model is it? Ball bearing or not?