starting propeller pitch

[Wheels]

Mother's day, didn't get anything done on the plane but at the end of the day checked the pitch with a yardstick prop holder and a digital level. None of the angles were the same, so tomorrow I'll get serious. Air the tires to exact pressure, digital level the plane, chock the wheels, take communion, then begin. this is my first time but I'm hoping Warp drive will send me some good info on the process. I won't fly the plane till I'm happy with the numbers and I get a go ahead from my inspector.
thanks for helping.

[kitfoxnick]

When I adjust them I don't level the plane. I take a reading at the hub and take a reading at the tip. Take the difference between the numbers and that will give you your pitch. Make sure you pull out on the blade so the root is set. Another thing is make sure you have the match marks on the hubs aligned when assembling the hub halves.

[Wheels]

I called warp drive and talked to them. They were great! They corrected my bad measurment technique and are sending me the instructions, tools and torque values to fully enjoy my ground adjustable Warp Drive product.

[SkySteve]

Wheels,
I have a 68" 3 blade square tip Warp Drive prop. I've always measured my pitch from the tip of each blade but my degrees are always different than I hear about here. Did they tell you to measure somewhere other than the tips?

[kitfoxnick]

Mine is 11.5 at the tip.

[SkySteve]

Mine is at 9.5 at the tip. Rotax 912A 80 hp. Cruise 92 mph @ 5000 rpm, 100 mph @ 5400 rpm. Off the ground in 350-400 ft. The elevation is 4500-5000 MSL. Empty weight 670#

[Wheels]

Wheels,
I have a 68" 3 blade square tip Warp Drive prop. I've always measured my pitch from the tip of each blade but my degrees are always different than I hear about here. Did they tell you to measure somewhere other than the tips?

No, they said the tips. I said I was measuring 6" in with a digital micrometer. That gives me more surface area on the flat side for my level. They thought that was fine. When I remeasured last night with their technique, I found only one blade out, but its really out. 5 degrees. So I'll give it a shot today on the ground run with the tools I have. Probably won't fly until I see the tools from warp drive, but I am thinking I can make the vibration go away. I have calibrated torque wrenches and all the numbers.

[Wheels]

The prop pitch is probably fine now. the vibe went away except at some midrange points and a little more than I like at WOT so I am investigating plugs, and balance. If I can't get it cleaned up with that I will check the clips in the carbs but the vibration is 80 percent bette now that the blades are so close in pitch.

[Jch]

On a related topic...I was trying to balance my 3 blade Whirlwind that has a carbon graphite spinner and plate. Are there any caveats for drilling through the spinner plate (type of drill bit, edge distance, dont do it all???) to put balancing weights?