Vasek;

The RCS 1.40 is a superb motor the wieght to power ratio is equal to 50%-75% of the 1.20's currently on the market. Second Plus for Gas is that you only need an 8 Oz Tank in your Aircraft for 15 Minutes of flight. Thus you have just equaled the Wieght of a 1.20 and a 20+ Oz tank of fuel.

The RCS turns a 16 X 8 APC @ 9100 RPM Static Thrust is about 16 Lbs.
Engine Weight with Muffler is 2 Lbs 5.Oz.


Engine RPM with APC 16x8 prop

RCS 1.4, one gallon through it, small carb 8,500 @ 66F, (8700 @84F)

RCS 1.4, 1+ gal, large carb, and TT 1.20 muffler 9,100 @ 70F

YS1.20NC with 10% nitro, well broken in 8,500

TT1.20 Pro, 5% nitro, one gallon through it 9,000



Hope this helps