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Message
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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