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Gentlemen,

The day I left for Australia, Jim Mosurs 13B powered RV-6 flew
for the first time.  (I'm in Auz at the moment).  Luckily, my flight
didn't leave till early evening and the deed was scheduled for 13:00 so
I was in attendance.

Jim had a very experienced friend of ours fly the 6 rather than
doing it himself.  The engine always ran beautifully and smoothly from
the very first start and that was the case for the entire 1.6 hour first
flight.  Other than being left wing heavy, the 6 performed flawlessly.
The engine also worked nicely except for high oil temps.  By high, we're
talking 240 on the climb out and 240 at higher power settings.  Dick
(the pilot) elected to continue with the flight but didn't exceed much
more than 130mph with the oil temp holding in the 220 range.  Water
temps were steady in the 180 mark regardless of power setting and max'ed
at 210 on the climb out.

A short max power run indicated around the 160mph with oil temps
rising again to the 245 mark.  Temps dropped back to 220 when slowed
back to 130mph.

With the airspeeds noted it seems Jim's installation is
producing around 130-140hp.  Well below what I'm doing but then Jim's
intake manifold is pretty crude and the 500 CFM 2 barrel may not be
quite big enough.  More than enough to have fun in, but there is now way
he's ever going to catch me.  :-)  

We didn't get into long discussions before I had to leave for
the airport but we will be moving the oil cooler to a more productive
location which involves some fibreglass work on my part.  (RV types
don't know squat about fibreglass)

Neil