Of course, by fuel flow, I'm only producing 120 (hot day) to 150 (cold day) HP. 

 

You're saying you have a 30 HP difference between hot and cold days?  Holy cow !!!  Do you have intake temps to go along with that?  If not, what would be your definition of hot and cold?  I'm going to have to find those intercoolers... 

Thanks for the info.

Rusty

 

 

Rusty, the rotary engine (for what ever reason) just LOOOVVVVVEEEESSS those cooler days.  I have had fuel flow of over 20 gph on take off when OAT was 28F.  That calculates out to over 200HP, static RPM was 5800 rpm vice a nominal of 5200 on a "normal" day.  I've never said anything about it because 1.  Who would believe me 2.  Who would believe me? and 3. Who would believe me?   Anytime the OAT is below 65F or so my static RPM increases about 200 rpm for ever 10F further temp drop.  DIE is part of my increase, but I think without any intake valves to get in the way that cold dense air seems to pack the combustion chamber moreso that on a reciprociating engine.

 

So I have no problem believing Finn - about that one point that is {:>)

 

Ed Anderson