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Prop Hub Extension?

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jodymorgan(at)earthlink.n
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Posted: Mon Jun 08, 2015 4:17 pm Post subject: Prop Hub Extension?

[quote]Hey All,

  

 Does the 912 need a prop hub extension when mounted  to the M3C or M3X?

 Wanting to mount the Suzuki 1.3 with Raven Redrive  on the M3X I'm building, but the Raven Redrive will not accept a prop hub  extension.

  

 Trying to match the distance from the 912 to the  prop without an extension to match the distance for the Suzuki, so if the 912  requires a prop hub extension when moounted to the M3X it would change my whole  set up calculations or maybe eliminate the Suzuki with that  Redrive.

  

 Tried to look it up in the archives but haven't got  that figured out yet.

  

 If it does require a prop hub extension, how long  of one does it need?

  

 Thanks in advance for any help.

 Jody

 

 

 

 

 

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byoungplumbing(at)gmail.c
Guest

Posted: Tue Jun 09, 2015 5:16 am Post subject: Prop Hub Extension?

Jody 

I have a mark3 with a 912.   It mounted ok with enough clearance for the prop and ran ok..   but when I added a 3 inch prop extension I ended up with two benefits.

 1.  Ended up with 2 to 3 mph faster speed.

 2. It cut the noise in the cabin enough to be worth the time and expense.

 I think rotax said that 4 inch extension was the maximum you could go.

 Hope this is helpful.

 Boyd Young. Mk3c. Utah On Jun 8, 2015 6:18 PM, "jody morgan" <jodymorgan(at)earthlink.net (jodymorgan(at)earthlink.net)> wrote:[quote]

 	  Quote: 	
		  Hey All,

  

 Does the 912 need a prop hub extension when mounted  to the M3C or M3X?

 Wanting to mount the Suzuki 1.3 with Raven Redrive  on the M3X I'm building, but the Raven Redrive will not accept a prop hub  extension.

  

 Trying to match the distance from the 912 to the  prop without an extension to match the distance for the Suzuki, so if the 912  requires a prop hub extension when moounted to the M3X it would change my whole  set up calculations or maybe eliminate the Suzuki with that  Redrive.

  

 Tried to look it up in the archives but haven't got  that figured out yet.

  

 If it does require a prop hub extension, how long  of one does it need?

  

 Thanks in advance for any help.

 Jody

 

 

 

 

 

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 ===========

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byoungplumbing(at)gmail.c
Guest

Posted: Tue Jun 09, 2015 10:45 am Post subject: Prop Hub Extension?

68 inch warp drive 3 blade...  can't remember but I think it is pitched near 8  1/2. To 9deg.  I am at 4200 feet sea level. Using the 80 hp 912 On Jun 9, 2015 8:49 AM, "jody morgan" <jodymorgan(at)earthlink.net (jodymorgan(at)earthlink.net)> wrote:[quote]Boyd,



What prop are you using?

Jody

On Tue, Jun 9, 2015 at 6:16 AM, B Young <byoungplumbing(at)gmail.com (byoungplumbing(at)gmail.com)> wrote:

 	  Quote: 	
		  

Jody 

I have a mark3 with a 912.   It mounted ok with enough clearance for the prop and ran ok..   but when I added a 3 inch prop extension I ended up with two benefits.

 1.  Ended up with 2 to 3 mph faster speed.

 2. It cut the noise in the cabin enough to be worth the time and expense.

 I think rotax said that 4 inch extension was the maximum you could go.

 Hope this is helpful.

 Boyd Young. Mk3c. Utah On Jun 8, 2015 6:18 PM, "jody morgan" <jodymorgan(at)earthlink.net (jodymorgan(at)earthlink.net)> wrote: 	  Quote: 	
		  

 	  Quote: 	
		  Hey All,

  

 Does the 912 need a prop hub extension when mounted  to the M3C or M3X?

 Wanting to mount the Suzuki 1.3 with Raven Redrive  on the M3X I'm building, but the Raven Redrive will not accept a prop hub  extension.

  

 Trying to match the distance from the 912 to the  prop without an extension to match the distance for the Suzuki, so if the 912  requires a prop hub extension when moounted to the M3X it would change my whole  set up calculations or maybe eliminate the Suzuki with that  Redrive.

  

 Tried to look it up in the archives but haven't got  that figured out yet.

  

 If it does require a prop hub extension, how long  of one does it need?

  

 Thanks in advance for any help.

 Jody

 

 

 

 

 

 ===========

 -List" target="_blank">http://www.matronics.com/Navigator?Kolb-List

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 _blank">http://forums.matronics.com

 ===========

 b Site -

           -Matt Dralle, List Admin.

 target="_blank">http://www.matronics.com/contribution

 ===========

 

 

 

 	




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russk50(at)gmail.com
Guest

Posted: Tue Jun 09, 2015 1:57 pm Post subject: Prop Hub Extension?

BoydIf you have time can you tell me where you got your prop extension?

Thanx

Russ K

 	  Quote: 	
		  On Jun 9, 2015, at 9:16 AM, B Young <byoungplumbing(at)gmail.com (byoungplumbing(at)gmail.com)> wrote:



Jody

I have a mark3 with a 912.   It mounted ok with enough clearance for the prop and ran ok..   but when I added a 3 inch prop extension I ended up with two benefits. 1.  Ended up with 2 to 3 mph faster speed. 2. It cut the noise in the cabin enough to be worth the time and expense. I think rotax said that 4 inch extension was the maximum you could go. Hope this is helpful. Boyd Young. Mk3c. Utah 

	




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byoungplumbing(at)gmail.c
Guest

Posted: Tue Jun 09, 2015 2:16 pm Post subject: Prop Hub Extension?

It was discussed on the list and a member of the list offered to turn it on his lathe and do it for the cost of materials....  right now I can't think of his name,, but I haven't seen his name on the list for years.   He asked what I wanted and I drew a scale drawing.   He liked my drawing better than what he had seen.  I think he made him one like he did for me. 

Boyd On Jun 9, 2015 3:59 PM, "kinne russ" <russk50(at)gmail.com (russk50(at)gmail.com)> wrote:[quote]BoydIf you have time can you tell me where you got your prop extension?

Thanx

Russ K



 	  Quote: 	
		  On Jun 9, 2015, at 9:16 AM, B Young <byoungplumbing(at)gmail.com (byoungplumbing(at)gmail.com)> wrote:

Jody

I have a mark3 with a 912.   It mounted ok with enough clearance for the prop and ran ok..   but when I added a 3 inch prop extension I ended up with two benefits.

 1.  Ended up with 2 to 3 mph faster speed.

 2. It cut the noise in the cabin enough to be worth the time and expense.

 I think rotax said that 4 inch extension was the maximum you could go.

 Hope this is helpful.

 Boyd Young. Mk3c. Utah 





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