Hi Paul & All,
12a Single Rotor now has 5 Hrs. Run time,
Listed changes made during runs to present con-fig.
1. Re-Key E-Shaft to Psru Sun Gear
2. Prop is 60 in. 3 blade now with 20 degree pitch
3. Mikuni 38mm carb. with 25 in. x 1 3/4 runner
4. Installed EGT seeing 1600 degrees at 5000 RPM,
Exhaust system is no longer red hot
5. Installed Auto Tach, back-up to Rotax Tach/Hobbs
6. Timing is @ 20 degrees BTDC both plugs
7. Throttle now able to go WOT
During the last run 5800 rpm I went to WOT, I had small fuel mist
cloud form at the
carb. bell mouth, is this related to runner length? I'm preparing a
Mikuni 40mm carb.
I took some measurements to help Identify the Psru gear set.
Planetary Carrier, 5.60 in. OD.x 3.5 in. ID, 6 pinions 14 tooth x 1in wide
Planetary Shaft, 1.87 in. dia. with keyway for prop hub
Ring Gear, 5.7 in.ID x 1.25 in. wide, 59 tooth Inside & Outside, .525
in. thick
Sun Gear, 3.285 in. OD x 1.85 wide, 31 tooth
Would appear that the planetary carrier extends thru the most forward
bearings
and that the prop hub is pressed on, without positive retention, the
planetary shaft
has 18mm tapped hole. Before additional runs I will add a retainer
washer and bolt.
Video last Run
http://www.youtube.com/watch?v=wsw3QbDCid8
<http://www.youtube.com/watch?v=wsw3QbDCid8>
Best Regards
Rolland (Philippines)
KitFoxes RP-S135/S2804
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