|
|
On Thu, 12 Jan 2006 10:33:55 -0600
"Russell Duffy" <russell.duffy@gmail.com> wrote:
I would like to take some readings from a certified engine for
comparison. I measured 104db at 3000 & 4000 rpm from my spiral flow
muffler.
I'd bet the average Lycoming would make a lot more noise at 3000-4000 rpm
:-)
Rusty (free from in-laws until Monday)
That does raise an interesting question though. At what rpm should I
run a Lycoming to compare to the rotary at 3000? For the same prop
speed, it should be a little over 1000. It seems that WOT static should
be a fair comparison point for both engines. Then how much does the
prop affect the results?
Bob W.
--
http://www.bob-white.com
N93BD - Rotary Powered BD-4 (first engine start 1/7/06)
Custom Cables for your rotary installation -
http://www.roblinphoto.com/shop/
|
|