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  #11  
Old 07-21-2018, 01:45 PM
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Piper J3 Piper J3 is offline
 
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Quote:
Originally Posted by Piper J3 View Post
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."
I'm thinking about this and it doesn't seem to make sense that installing the Rev “D1” Hub Cover would negate the need to check torque of Hub/Engine
Flange bolts.

I'll contact Sensenich and ask if they misspoke and need to walk-it-back like the Prez...
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RV-12 E-LSA #120058 AWC July 2012 N633CM
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  #12  
Old 01-06-2019, 10:14 AM
Cirrus Man Cirrus Man is offline
 
Join Date: Feb 2013
Location: Carlsbad, CA
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Default Whirlwind Prop on RV12

Unless you have or are willing to relocate the pitot tube from the spinner, you may not have any options.
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  #13  
Old 01-08-2019, 07:49 PM
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randylervold randylervold is offline
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Default Another WhirlWind option

Has anyone installed a constant speed prop on an RV-12? Speaking of WhirlWind... http://www.whirlwindaviation.com/props/100series.asp

The pitot would need to be relocated, and one would need a prop control in the cockpit, and the cost is significantly greater, but think of the flexibility in operating the aircraft. I suspect that the improvement would not be as great as with one of the “regular” RVs which have a wider speed envelope and therefore have a greater compromise with a fixed pitch prop.

Anyone installed a c/s prop?
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  #14  
Old 01-08-2019, 09:07 PM
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DaleB DaleB is offline
 
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Originally Posted by randylervold View Post
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.
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  #15  
Old 01-09-2019, 09:26 AM
NinerBikes NinerBikes is offline
 
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Quote:
Originally Posted by DaleB View Post
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.
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.
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  #16  
Old 01-09-2019, 09:33 AM
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randylervold randylervold is offline
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And with BasicMed now an option Sport Pilot privileges are less important in driving aircraft purchase & selection than before. Still a factor though, BasicMed still DQs some pilots.

Overall though the regulatory landscape is in flux, we will continue to see changes in aircraft certification and pilot regulations as time goes on.
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RV-3B, first flight 2007 - sold
RV-8, first flight 2001 - sold
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  #17  
Old 01-09-2019, 10:45 AM
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Default Advice for 3 bladed

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...........
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Empennage finished
Wings finished (need to add the left landing light)
iS Finishing Kit In work
iS Fuselage Finished
iS Engine Kit in work
iS Avionics Kit ordered
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  #18  
Old 01-09-2019, 11:00 AM
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Mel Mel is offline
 
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Quote:
Originally Posted by rolick22 View Post
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...........
If you are going EAB, you could simply delete the prop when ordering and wait to see what wrings out. If you are going ELSA, you will need to comply with whatever Vans offers.
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North Texas (8TA5)
RV-6 Flying since 1993, 172hp O-320, 3-Blade Catto (since 2003)Sold
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  #19  
Old 01-09-2019, 12:33 PM
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randylervold randylervold is offline
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Quote:
Originally Posted by rolick22 View Post
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.

Remember, 3-blade props in general make the cowl harder to remove, typically weigh more, and typically have slightly better climb but slower cruise. Smoother feel is also a common benefit.
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RV-12iS, empennage/tailcone complete, wings currently, fuse on order
RV-3B, first flight 2007 - sold
RV-8, first flight 2001 - sold
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  #20  
Old 01-09-2019, 12:48 PM
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rolick22 rolick22 is offline
 
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Your forgetting one thing the "COOLNESS FACTOR!!" Thats got to be worth 2-3 thousand more.
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David Rohrlick
PPSEL A&P
RV-12 Finished (Empennage, Fuselage(1st gen), and Wing kit)
Empennage finished
Wings finished (need to add the left landing light)
iS Finishing Kit In work
iS Fuselage Finished
iS Engine Kit in work
iS Avionics Kit ordered
1st GEN FUSELAGE SOLD
Serial#12-0864
N112DR Reserved
VAF donation made for 2019
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