- by Upsidedown Fri Dec 08, 2017 11:08 pm Whirlwind propeller shake View the latest post Replies 12 Views 823
- by One Winged Junkie Tue Dec 05, 2017 7:21 pm C90 crash KRFD, 4 seriously injured View the latest post Replies 1 Views 63
- by MonoPlaneForum Mon Dec 04, 2017 11:36 am FS: YAK-55 SIGHTING DEVICES View the latest post Replies 1 Views 59
- by One Winged Junkie Mon Dec 04, 2017 9:47 am FS: BLADES FOR THE YAK View the latest post Replies 1 Views 68
- by MonoPlaneForum Thu Nov 30, 2017 4:30 pm FS: YAKOVLEV YAK 52 $8500 (Crashed) 11/27/17 View the latest post Replies 1 Views 84
- by Laser200 Tue Nov 28, 2017 8:14 pm LASER IAS View the latest post Replies 2 Views 425
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So the cause of all this may be that the face of the crankshaft was not machined straight. Unfortunately I won’t know if this was the issue until the spring but I will be sure to report back. I’ll tell the story so it may help someone I purchased this engine with a very minor prop strike. It dialed ...
Shipchief-exactly what I was thinking except below 2450 there was no smooth spots at all. It was better when I rotated the prop but still unacceptable with any power or airspeed combo below 2450/2430ish. I was going to try all the other positions on the crank, with Whirlwinds blessing, (Jeremy at Wh...
Here is the latest. Tried different length bushings in rubber mounts, no change. Backed off the timing to 22 degrees, no change. Cleaned and tested the plugs, they looked good but did it anyway, no change. Mag drop during run up has always been 30-40 rpm and no real difference in vibration during a ...
I'm using the aerobatic dynafocal mounts that Aircraft Spruce sells, part #08-03600. I'm suspicious of the mounts as well. I may try another set that I have just to see if it changes anything.
Hello everyone I have a dozen flights on my version of the Laser type and things are progressing well. Running a Whirlwind 200AC in front of a straight valve ECI Titan IO360 with a Superior cold air intake. I had the prop dynamically balanced but I'm still getting a shake in the airframe. My guess i...