If I read the current Sensenich documents correctly, even after replacing the front hub cover, you still have to disassemble the hub to torque check the hub/engine flange bolts annually. See page 7 of the FAQ for SB2016-06B.
Tony - Page 7 says "This option will permanently comply with the service bulletin, remove the 50 hour inspection interval and also eliminate the annual re-torque for the mounting bolts under the blades. This means the only re-torque at annual will be the clamp bolts."
Catto has a 3 blade fixed pitch
Tony - Page 7 says "This option will permanently comply with the service bulletin, remove the 50 hour inspection interval and also eliminate the annual re-torque for the mounting bolts under the blades. This means the only re-torque at annual will be the clamp bolts."
In the US? I'd be a little surprised to see it, since it would render the RV-12 no longer eligible to be flown with Sport Pilot privileges. Ever.Anyone installed a c/s prop?
In the US? I'd be a little surprised to see it, since it would render the RV-12 no longer eligible to be flown with Sport Pilot privileges. Ever.
I wish I had a crystal ball, as I'm getting ready to pull the trigger on the 912iS engine kit with the two bladed prop. Here is what might happen as soon as I get my engine kit delivery. Vans will announce the 3 bladed design for the 912iS. That being said, should I hold out for the blest 3 bladed Vans design? Could never happen, or it could be next month. Your thoughts...........
My understanding is that Van's was testing and considering the 3-blade version of the ground adjustable from Sensenich. There is a thread in this forum somewhere about it and IIRC the preliminary test results were not compelling which is why they didn't proceed at that time. Of course I don't know what might have transpired inside the mothership in the meantime.I wish I had a crystal ball, as I'm getting ready to pull the trigger on the 912iS engine kit with the two bladed prop. Here is what might happen as soon as I get my engine kit delivery. Vans will announce the 3 bladed design for the 912iS. That being said, should I hold out for the blest 3 bladed Vans design? Could never happen, or it could be next month. Your thoughts...........
"Time will tell" pretty much sums it up. I certainly wouldn't do anything counting on possible future regulatory changes. I think allowing CS props on LSA would be great, and I'd almost certainly go for one if it were possible.That may change, with EFIS systems doing the monitoring and adjusting, minimizing workload on the pilot in the cockpit. Time will tell, more and more stuff getting automated.
I have a WW prop on my RV12 and enjoy it. It has excellent build quality and works well. I enjoy the "infinite" adjustability of it and have settled on 18º pitch and find it very smooth in operation. I'd get into my performance numbers, but those may not be comparable if you have a Rotax.
The price for my prop and spinner was very reasonable and their support is excellent. I plan to buy another prop from them for my next build. I recommend the prop and manufacturer in general.
As a bonus, the nickel leading edge they put on all of their props is wonderful. I'm have about 200 hours on the prop now and the leading edge still looks brand new.
How many Hobbs hours now on your commuter? We don't know what prop you may have started out with? You're adding what, 3 to 7 hours per week, commuting?
You're running a ULPower 120 hp 350 iS of some sort?
Will different rpm's of a gearboxed 912 uls with less HP have huge effect on size of prop you run, in your opinion?
Do share your performance figures, so that others considering powerplants for RV-12's can make an informed decision.