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Message
Greetings,
Well, N751RV, rev-2
made it's first flight today.
Good news- The engine
ran smooth, and quiet according to ground observers. There were no
leaks, or other problems, with the exception of the fact that I hooked up
the pitot and static ports backwards on the EM-2. That little mistake
rewarded me with a TAS of 0 for the flight. I fixed that already.
The plane now feels like an RV should, with much better handling than the
previous nose heavy version. This alone will be worth the removal of the
turbo.
Bad news- power is
certainly down from running 5 psi on the turbo. Once the prop unstalled on
takeoff, the rpm was only 4500, and it only went to 4700 or so in climb.
This is about 700 rpm lower than before. I didn't notice the VSI
during my brief climb to 1200 ft, but it felt reasonably good. I'm sure it
wasn't 2700 fpm like before, but there's plenty of rpm left to improve
this.
Some numbers- orbiting the
airport at 1200 ft, and 4700 rpm, the ASI showed 125 mph, with oil temp of 163
degrees, and water temp of 132 degrees. I made about a one mile run
at full throttle, and saw 150 mph, at 5700 rpm before I backed off.
Max water temp on climb was about 155 degrees.
Sorry, not much real
testing done, but I'm ready to proceed to that now that I got the initial flight
out of the way. Stay tuned.
Cheers,
Rusty (glad to be flying
again)
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