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On 9/3/2019 8:37 AM, Kent Bedford kbedford@alphalink.com.au wrote:
A 450hp all aluminium 4 rotor + turbo with cooling etc should come in at about same weight as the 350hp Lycoming IE2 or Continental IOF-550 but the rotary will have 100hp more and burn less fuel during cruise.
Welll.....only if you've found a way to re-write the laws of physics. :-)
Rotaries are slightly less efficient, from a BSFC standpoint, than properly leaned piston engines. There's just no way around it. Now, they can *cost less* to purchase, and *cost less* in what you pay for fuel (cheapest regular mogas you can find vs avgas for the a/c engine), but even that advantage can go away if you're truly boosting the engine instead of turbo-normalizing.
Charlie
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