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  #11  
Old 02-06-2020, 09:58 AM
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rvbuilder2002 rvbuilder2002 is offline
 
Join Date: Jul 2005
Location: Hubbard Oregon
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Gliding is usually the result of loss of engine power.

On a Rotax 912, the engine (and propeller) stops turning with loss of engine power.

The drag flat plate area of the 3 blade prop when stationary is about the same as it is for the two blade.
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Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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  #12  
Old 02-06-2020, 11:58 AM
E. D. Eliot E. D. Eliot is offline
 
Join Date: Dec 2005
Location: San Pedro
Posts: 1,013
Default Ok - I'll bite!

It's likely that I will opt for this 'upgrade'. Don't know for sure if will happen before first flight or ever but, since I always have to fight my way thru Van's maze of 'how to order something' and how much? (I admit that I'm not the brightest light bulb in the bag of light bulbs), can somebody tell me how much this will cost me if I opt to install the three blade arrangement? Also, does anybody want to purchase my not yet installed standard two blade prop assembly and spinner? Thanks for answering.
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  #13  
Old 02-06-2020, 12:43 PM
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greghughespdx greghughespdx is offline
 
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Location: Aurora, OR
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Quote:
Originally Posted by E. D. Eliot View Post
It's likely that I will opt for this 'upgrade'. Don't know for sure if will happen before first flight or ever but, since I always have to fight my way thru Van's maze of 'how to order something' and how much? (I admit that I'm not the brightest light bulb in the bag of light bulbs), can somebody tell me how much this will cost me if I opt to install the three blade arrangement? Also, does anybody want to purchase my not yet installed standard two blade prop assembly and spinner? Thanks for answering.
The three-blade prop kit prices are on the RV-12/12iS powerplant order forms, which are located on this page.
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Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.

Building RV-8A since Sept 2014 (N88VX reserved)
Dual AFS 5600, Avidyne IFD 440, Whirlwind 74RV, Superior XP IO-360
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  #14  
Old 02-11-2020, 06:20 AM
Tony M Tony M is offline
 
Join Date: May 2013
Location: NJ
Posts: 10
Default Ordered power kit

Well just ordered my 3 blade prop power kit today.. The Check is in the mail and starting the wait time counter...I can’t wait!

Last edited by Tony M : 02-11-2020 at 05:16 PM.
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  #15  
Old 03-08-2020, 07:18 AM
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pstraub pstraub is offline
 
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Location: Hensley Airpark, TN
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I am seriously considering this 'upgrade' (I know it's debatable) and wondering if Van's have created a set of instructions to go from the standard ELSA Sens 2-blade to the new Sens 3-blade? I know I can dig out the info by comparing both KAI sections. For example, do you have to disturb the original pitot tube setup? I am assuming all the offsets, etc are the same, but...?

Also wondering if there is a used market for the Sens 2-blade with 180 hours on it??
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  #16  
Old 03-08-2020, 10:46 AM
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rvbuilder2002 rvbuilder2002 is offline
 
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Location: Hubbard Oregon
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There is no conversion document to switch from the 2 blade to the 3 blade.
You take the one off and use the install instructions to put the 3 blade on.

The pitot tube installation is the same for both.
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Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.

Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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  #17  
Old 03-08-2020, 01:01 PM
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pstraub pstraub is offline
 
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Quote:
Originally Posted by rvbuilder2002 View Post
There is no conversion document to switch from the 2 blade to the 3 blade.
You take the one off and use the install instructions to put the 3 blade on.

The pitot tube installation is the same for both.
Thanks Scott, I will completely remove all 2-blade related components and start with the new instructions. Good to know the pitot tube install is the same.
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N917PB, SN 120971
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  #18  
Old 03-31-2020, 08:01 AM
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pstraub pstraub is offline
 
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Location: Hensley Airpark, TN
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Default RV-12 3-blade prop

I bit the bullet and purchased the new 3-Blade Sens prop from Van's. There was nothing wrong with my original 2-blade with only 180 hours on it. Everything was great, but I could not resist the look of 3 blades and hoped Van's would come out with an official offering for the RV12/912ULS. There were other offerings, but since I built ELSA, I wanted to stay in the spirit of 'Van's Approved'.

So far, very impressed with the apparent quality and design...the hub and blades are really nice. I just got a chance to do the initial mounting and spinner work over the weekend. I will start the pitch adjustments when I get time this week. Love the hub design, I was able to assemble the prop/hub on a nice, large table. Then it's easy to bolt to the back plate as a unit.

I will update this thread when I get the pitch set and am able to do some static and in-flight testing. BTW, if anyone knows someone that might need a perfect 2-blade setup with only 180 hours, please let me know. I had the later Sens hub that was not subject to cracking.





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N917PB, SN 120971
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  #19  
Old 03-31-2020, 11:15 AM
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Stitch462 Stitch462 is offline
 
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Location: Mead, WA
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Quote:
Originally Posted by pstraub View Post
I bit the bullet and purchased the new 3-Blade Sens prop from Van's.....
Looks sharp and love the two-tone grey paint job. Well done.
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  #20  
Old 03-31-2020, 08:40 PM
RFSchaller RFSchaller is offline
 
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Location: Phoenix, AZ
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When something causes me to repitch the two blade I groan. Can?t imagine the aggravation of trying to get THREE blades all singing the same song!😜
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