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1000ft da
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Ive been talking to sensenich since the day they first showed this prop. Ive tried to get them to offer a heavier spacer and the prop has been back to them for some tweaking of the index pins. It performs very similar to the metal prop without the rpm restriction and it seems very smooth. It has much better acceleration on take off too. Cm |
Interesting. We must be talking to different people.
About a month ago, I asked about performance on a ~180HP -7 using the GA blades, and the guy I spoke with was very specific in saying that the blades are intended for Light Sport speeds, and would be sub optimal for faster RV's because of inadequate twist. (He said that it isn't power issue; the prop I was looking at had 3 blades & could absorb the power.) I also asked specifically about whether they had considered making blades optimized for the 3/4/6/8 speeds, and he said that they'd discussed it but nothing was actually in the works. Charlie |
Interesting
This prop was made especially for faster RV types
Here is a link to their site concerning this propellor http://www.sensenich.com/products/item/92 It is a very light prop and for the rv4 thats a problem. I had sabre make me an 11lb spacer to help the cg. So far I am very happy with the prop. I have flown much acro, formation, and several airshows with it. I dont think too many rv4s are using this prop and the issue i had was not enough pitch available so we re indexed the pins. Cm |
Chris,
Come down to visit and we'll do a side by side speed and climb comparison. I'm really curious about how that prop compares to mine, I'll buy lunch at PUB. On the other hand, I could meet you at KBJC and you buy lunch. I only have several more years to fly in that airspace before the ADS-B---stuff kicks in. Cheers, Hans |
We should
Hans
We need to fly together again. Ive been so busy the airplane has been sitting in the hangar too much. Twister |
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Charlie |
Here is what I observed
I ran the AVC race. First leg 208mph second leg 204mph. Ended up flying at 9500/7500 msl at 2650 rpm. Not full power. I found I could get about 2850 rpm at 2000ft msl with the prop pitched the way I had it for higher altitude.
I got second place by .11mph... Cm |
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