You are missing more horsepower than that. You are in the regime where
the cube rule applies: to go 11.5% faster (182 to 210) on hp alone,
you'll need 55% more horsepower!


(Jim Harper) wrote in message . com...

Van's says a 200 horsepower RV8A will cruise at 210mph at 75% power at
8000 feet. Book says it will climb at 2500 fpm at 1500 pounds.

Mine cruises at 182mph and climbs at 1800 fpm. Now, nothing wrong with
that performance, but still and all...The airplane is straight and
slick. No unusual drag makers. It would seem that I am missing around
25 or so horsepower.