ORIGINAL: mugenkidd
So according to rule #2 I can no longer put a 37lb or 43lb thrust turbine in say a 28lb Eurosport or boomerang??? And are we going to go by manufacturer rated thrust or actual thrust produced by the aircraft since in situations where a bifurcated pipe is installed the aircraft actually looses thrust??
The experimental regs only impact aircraft that weigh more that 55 pounds. So it would be within the rules to put a P180 into a Eurosport. This change is not dramatic, but will allow the legal use of 50 pound turbines in some larger airframes, and in some cases allow builders of twins to install the next larger class size engine in their aircraft.
There is no published rule relative to thrust loss for bifurcated pipes, so it would be up to the inspector. If you were within a pound or two and had a bifurcated pipe, I think most inspectors would be OK with it as long as everything else was up to snuff. Bob may want to comment on this.
Thanks to all of you for the support and kind words. As more and more large kits become available, and assuming the economy recovers at some point, these changes will become more relevant for a larger number of us.