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  #91  
Old 08-04-2018, 08:17 AM
KRAUSEGB KRAUSEGB is offline
 
Join Date: Oct 2008
Location: AGOURA, CALIFORNIA
Posts: 109
Default Airfoil Template

Has anyone used the airfoil template (A-1396) from Sensenich to set the pitch?
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  #92  
Old 08-04-2018, 10:57 AM
Piper J3's Avatar
Piper J3 Piper J3 is offline
 
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Location: Hinckley, Ohio
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I tried to use it and found it to be a very poor substitute for the sheetmetal stamping that Van's sells. Don't skimp on getting the right tool for this important job. I know Sensenich says their wooden gage is the next best thing to sliced bread but believe me - it isn't.
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Jim Stricker
Hinckley, Ohio
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2004
80 hrs Flying Aeronca Chief 11AC
1130 hrs Flying 46 Piper J-3 Cub
RV-12 E-LSA #120058 AWC Jul 2012 - Bought Flying Oct 2015 with 48TT - Hobbs now 400

LSRM-A Certificate 2016
Special Thanks to EJ Trucks
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  #93  
Old 08-04-2018, 11:51 AM
Harvey rv12 Harvey rv12 is offline
 
Join Date: Apr 2015
Location: Olympia WA
Posts: 154
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I have used it, and I liked it because it matched exactly the airfoil used on the prop, and it would measure accurately the angle of the chord line from leading edge to trailing edge. But I will say Vans little tool is a little easier to use.
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RV-12, bought flying
Hoskins Field, 44T
Olympia WA

the bitterness of poor quality
lingers long after the cheap
price is forgotten.
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  #94  
Old 08-05-2018, 04:25 PM
KRAUSEGB KRAUSEGB is offline
 
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Location: AGOURA, CALIFORNIA
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Thanks. Guess I will stay with the tried and true method I have used for the passed 7 years.
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  #95  
Old 08-05-2018, 10:31 PM
rjtjrt rjtjrt is online now
 
Join Date: Mar 2006
Location: Australia
Posts: 728
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Can anyone who has ordered a Rev E or later hub from Sensenich let me know how they did it?
My current plan is to get the Rev E or later hub replacement and manually set pitch with protractor, rather than send whole prop back to US.
But not able to find an order page on Sensenich web site that lists the new hub.
I plan to ring them tonight but maybe there is an easier way.
John
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  #96  
Old 08-06-2018, 02:58 AM
Piper J3's Avatar
Piper J3 Piper J3 is offline
 
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Quote:
Originally Posted by rjtjrt View Post
Can anyone who has ordered a Rev E or later hub from Sensenich let me know how they did it?
My current plan is to get the Rev E or later hub replacement and manually set pitch with protractor, rather than send whole prop back to US.
But not able to find an order page on Sensenich web site that lists the new hub.
I plan to ring them tonight but maybe there is an easier way.
John
Sure, I just did this. Call Sensenich and place order over the phone. They may give you a hard time about mismatching SN's and such but insist that they send you latest design hub. I received Rev "F" hub and set pitch manually with digital level per Van's instruction. I entered SN's for both halves of prop hub and both blades in my prop logbook stating compliance with latest SB and installed per Sensenich instructions. Now I feel good about integrity of prop.

Wanted to add more pitch so I could keep up with this airplane...

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Jim Stricker
Hinckley, Ohio
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2004
80 hrs Flying Aeronca Chief 11AC
1130 hrs Flying 46 Piper J-3 Cub
RV-12 E-LSA #120058 AWC Jul 2012 - Bought Flying Oct 2015 with 48TT - Hobbs now 400

LSRM-A Certificate 2016
Special Thanks to EJ Trucks

Last edited by Piper J3 : 08-06-2018 at 03:02 AM.
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  #97  
Old 08-06-2018, 06:17 AM
JBPILOT JBPILOT is offline
 
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Location: Jesup, Iowa
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Default Jim - -

Did you take pic of it. Look any different ? Thanks.
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Flying RV-12 - Serial #120036
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  #98  
Old 08-06-2018, 06:40 AM
Piper J3's Avatar
Piper J3 Piper J3 is offline
 
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The old hub has the large center hole for the nylon pitch change cylinder. Photo of my "B" hub anodized a gold color is shown below. Hubs thru Rev "D" all have the large center hole.

I didn't take a photo of the new hub. I have included Van's assembly drawing of the new design hub which shows the three (3) small holes aligned with the prop axis. The new design started with Rev "E" and includes latest Rev "F".

Large center hole - Rev's thru and including Rev "D"


Three (3) small holes aligned w/ prop axis - Rev's "E" and "F"
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Jim Stricker
Hinckley, Ohio
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2004
80 hrs Flying Aeronca Chief 11AC
1130 hrs Flying 46 Piper J-3 Cub
RV-12 E-LSA #120058 AWC Jul 2012 - Bought Flying Oct 2015 with 48TT - Hobbs now 400

LSRM-A Certificate 2016
Special Thanks to EJ Trucks
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  #99  
Old 08-12-2018, 11:57 PM
rjtjrt rjtjrt is online now
 
Join Date: Mar 2006
Location: Australia
Posts: 728
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Quote:
Originally Posted by John-G View Post
Yes, the Nord-Lock washers used for the prop are a larger OD than the ones normally associated with that size bolt head. I found this out the hard way when I went to a large nut & bolt supplier locally and bought some replacements ... only to find out the outside diameter of the Nord-Lock Sensenich uses on the prop bolts were a much larger OD than the ones that were sold to me at the nut & bolt supply.

I ended up ordering new ones directly from Sensenich ... they were cheap. The Nord-Lock part number printed directly on the washers is 85397-1 and the OD measures out at 21/32" if that helps. Below is a link to my Blog that has a photo of a Nord-Lock washer from Sensenich being measured ... if you zoom in you can clearly see the part number on the washer.
http://www.dogaviation.com/2017/10/t...-tips-for.html
Re Nord-Lock washers.
Please excuse a stupid question, but how many of the Sensenich specific 85397-1 Nord-Lock washers are requred if I replace the hub front plate with a new D1 version hub cover half?
I want to get all parts I may need for the maintence organisation Iwill use before we start.
I am not the builder of my 12, so must use a licence shop for maintenance.
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  #100  
Old 08-13-2018, 01:25 AM
Piper J3's Avatar
Piper J3 Piper J3 is offline
 
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Location: Hinckley, Ohio
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Quote:
Originally Posted by rjtjrt View Post
Re Nord-Lock washers.
Please excuse a stupid question, but how many of the Sensenich specific 85397-1 Nord-Lock washers are requred if I replace the hub front plate with a new D1 version hub cover half?
I want to get all parts I may need for the maintence organisation Iwill use before we start.
I am not the builder of my 12, so must use a licence shop for maintenance.
When you order the new from hub from Sensenich it will come with new bolts and Nord-Lock washers.
__________________
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Jim Stricker
Hinckley, Ohio
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2004
80 hrs Flying Aeronca Chief 11AC
1130 hrs Flying 46 Piper J-3 Cub
RV-12 E-LSA #120058 AWC Jul 2012 - Bought Flying Oct 2015 with 48TT - Hobbs now 400

LSRM-A Certificate 2016
Special Thanks to EJ Trucks
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