I am replacing a 68 x 78 A/D
I was concerned with the spacer configuration so I ended up just ordering new extension and spacers for the catto from saber. went with a 20lb crush plate as well that I will put on when my brothers want a ride.
anyways, I got everything on the plane last week. will have to do the A/D numbers later though should be easy as I have all old spacer fwd setup I can just bolt on.
I went for 2 short flights in the pattern as it was a busy week....
First impressions:
on ground
- prop looks amazing
- Surprised that the prop felt no smoother than the old A/D
- seems like more vibration under ~1200 rpm
flying
- Prop pulls hard on run up 2200 static iirc
- no noticable difference on takeoff
- on climbout the noise was much different then the A/D sounded like a 185 more like it was cracking the air (not sure how else to discribe)
- Seemed to be more vibration in the downwind than the A/D though I may have been overly sensitive with new prop.
- final / landing I couldnt really tell a difference, possibly slowed faster.
I contacted catto and googled the potential vibration and noise
- catto thought the increase in noise may have actually been hearing more engine noise bc of quiter prop. I may believe this
- I have moved the prop 1 bolt hole clockwise to see about vibration
going to try this afternoon and see how it is
