Listers,
Give me a couple of days and I'll get back
with design details and more on in-flight results. Flew two more rides
yesterday, 2.4 hours total. I need some left rudder at all
speeds. I'll review "P" Factor material, do some careful measurements
and see if some of the problem can be shimmed out. I'll hold off
messing with trim tabs if there is another way.
At full throttle and stabilized level flight
the engine is turning 5200 RMP at 125 Kt indicated (no wheel pants or gear
leg fairings) I have a couple of ideas to try to improve power that
I'll work on as able. I haven't done an airspeed check yet. The
left wing is heavy but can be trimmed out. I'll wait awhile before
massaging the aileron trailing edge.
If the ball is centered, there is no wing drop
in the stall.
Cooling has not been an issue either on the
ground or in the air. I had about 12 hours ground running and lots of
taxi time with the tail up and down. There haven't been any serious
issues with the engine installation (yet!) There is a pesky oil leak
(or seepage depending on how anal one is!!). My hangar mate, who
teaches diesel mechanics at the local tech school, gave me some die and a
black light to locate the leak. The big one was the stock oil dipstick
allowing oil to splash out. Solved that with three small "o" rings
pushed on to the dipstick seal. There is still oil seeping around the
back (front in the auto) cover. At some point I'll pull the engine and
reseal it, but not now.
Yes Rusty, 13B nearly stock; 2.17 : 1
gearbox; EC2 Controller and Tracy's 68 X 71 Performance
prop. Stock oil cooler and a slightly modified Griffin
radiator used by the dune buggy guys with a Sirocco engine.
Stand by for more!
Regards,
Gaylen Lerohl
----- Original Message -----
Sent:
Saturday, November 04, 2006 19:59
Subject:
[FlyRotary] Re: First flight, RV-8 N5093F
First flight
today.
Congratulations Gaylen! The temps sure
sound good.
How about refreshing our memory with some details
of your installation. I'm guessing 13B, with the 2.17 redrive and
Tracy's old prop. What are you using for oil and water
cooling?
I'm also curious what your empty weight
and empty CG came out to. FWIW, mine is 1080 lbs,
with an empty CG of 76.0", which is pretty
nose heavy.
Cheers,
Rusty (first engine run today, DAR next
Sat)
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