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Sensenich wood/composite propeller

Acrobum

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Some of you will recall that I have been helping Sensenich as a consultant with developing new aerobatic oriented propellers. Since my last post announcing the release of this new series of propellers, I have been able to help many of you in this group personally get set up through installation. It really has been a lot of fun working with the members here. With that being said, we have worked up a little inventory of these props that have been flown and can’t sell as new.

I have three new and used propellers ready to ship in inventory. All are drilled for O-360 1/2” prop bolts. These propellers tend to run two inches pitch less than the equivalent aluminum Sensenich 76EM8. Example, a WC76NM8-56 will be a close equivalent to a Sensenich 76EM8-58.

-First propeller is a WC76NM8-56 that is grey with white blade tips and urethane leading edge protection. This propeller has been flown, but less than 5 hours. No damage. Asking $1,800 shipped. Perfect for a stock, 180hp bungee gear S-1.

-Second propeller is a WC76NM8-58 that is white with red blade tips and urethane leading edge protection. This propeller has been flown, but less than ten hours. No damage. Asking $1,800 shipped. Perfect for a mild O-360 stock S-1 or spring gear S-1. (Pictured below)

-Third propeller is a WC74NM8-60. This was a custom order that fell through, still new in the box. This is drilled for 1/2” bolts even though it is a 74” diameter prop. It is white with red blade tips and urethane leading edge protection. $1,900 shipped.

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brooksmershon

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Would you mind sharing insight into the comparison I might expect to see running the 74" x 60" prop when I'm running a 76 x 56 that hits 2600 at 100mph climb-out and ~3,000 straight and level WOT, 3,500 MSL? Any chance my lighter weight pilot plus plane is accounting for my higher climb-out rpm than we predicted but, we are about right on the money for my cross-box performance?

Don't mean to throw off any sales by discussing, but perhaps discussion will knock down any uncertainties keeping others from pulling the trigger; these all seem like wonderful props and I'm sure they are all right for someone. I'm sure happy with mine but do avoid popping 3,100 rpm I sure do have to pull back to half or so on downlines and experience the airbrake effect, and this technique consistently delivers me from the dive to level around 3,000 rpm. I feed in the half to WOT smoothly as a pull away from horizontal happens again and this keeps me from over-speeding 3,100 rpm.
 

Acrobum

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The white 76x58 is sold and so is the grey 76x56.
 

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