---------------------------------------------------------- Engines-List Digest Archive --- Total Messages Posted Sun 04/18/04: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:40 AM - Re: ATP Turboprop (Charlie & Tupper England) ________________________________ Message 1 _____________________________________ Time: 06:40:56 AM PST US From: Charlie & Tupper England Subject: Re: Engines-List: ATP Turboprop --> Engines-List message posted by: Charlie & Tupper England Don.Alexander@AstenJohnson.com wrote: >--> Engines-List message posted by: Don.Alexander@AstenJohnson.com > > >How can it be??? >An article on AvWeb states that ATP's turbine cranks out roughly 200 hp at >slightly over 13 gph. This would mean that they have achieved an >efficiency on par with a piston engine. Any thoughts as to how this >unbelievable accomplishment was pulled off? >Do not archive > I spoke to him at snf this week; it's 13gph at 140 mph in the RV-4, after they fixed their exhaust pipe exit angle problem. I believe that 140 mph in a -4 requires something under 100hp. Charlie