Dennis,
I don’t remember which way the “B”
psru turns. Is it clockwise or counterclockwise? I have the “C”
and it turns clockwise. From the pilot perspective.
How did you arrive at the .6 oz/gal
number? I am using .8 oz/gal, but that is because I am filling mostly
from 5 gal containers and that is 2 oz of MMO and 2 oz of Wal-Mart 2 stroke.
Same for 50 gal drums, 20 oz/20 oz.
B2
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Dennis Havarlah
Sent: Thursday, December 19, 2013
5:11 PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: Renesis
with 76 X 88 prop
I've been collecting some engine data on my Renesis 4
port powered RV-7A with a Catto 76X88 2 blade prop. I use Mogas
with 0.6 oz Wal-Mart 2 stroke and Marvel Mystery oil mixed 50% each.
Static is 5550 rpm. In climb at full power I get 5700 rpm at about 85
knots. Level at 2000 ft msl and 155 mph I turn 5200 rpm on the
engine @ 20mpg. At 170 mph I turn 5800 rpm. At 185 mph I turn
6200 rpm. I have the B gearbox 2.85:1 engine to prop ratio.
I now have over 500 flying hours. I use Mobil 1 - 15W
50 synthetic oil and change it every 50 hours.
My flying for the last year and a half includes 2 to 3 very
short flights each week to play tennis (7.5 minutes each way). I
warm the engine to at least 110 deg F. before going to 3200 rpm
for engine checks. I takeoff full throttle when the oil
and water are over 120 deg. F.
PS: Charlie and Tupper England
-Shirley and I are excited you and Tupper are making plans for another
fly-in! The last one was great - let us know how we can help!