Matronics Email Lists :: View topic

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

Reversing propeller

Matronics Email Lists Forum Index -> M14PEngines-List

View previous topic :: View next topic

Author Message

lacombr(at)nbnet.nb.ca
Guest

Posted: Mon Oct 08, 2007 6:04 am Post subject: Reversing propeller

Reversing propeller

  

 A question to experienced floatplane pilots.

 Is a reversing propeller useful on a floatplane.  We are building a  Murphy Moose powered by the M14 radial engine and wonder if it is worthwhile  investing in a reversing prop.

  

 Thanks

 Rino



    [quote][b]

- The Matronics M14PEngines-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?M14PEngines-List

psiequipment(at)bellsouth
Guest

Posted: Mon Oct 08, 2007 7:15 am Post subject: Reversing propeller

We're doing it......but not with the  M-14P

  

 www.ripleyair.com

  

  

 [quote]   ---

- The Matronics M14PEngines-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?M14PEngines-List

HBaker

Joined: 16 Nov 2008
Posts: 119

Posted: Tue Jan 27, 2009 12:14 pm Post subject: Re: Reversing propeller

Hi 



What Prop are you going with, is it two blade or three blade?



Henry 

Moose #294

- The Matronics M14PEngines-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?M14PEngines-List

_________________
Currently building a Murphy Moose - any help would be appreciated.

btripp

Joined: 21 Aug 2008
Posts: 6
Location: Wasington

Posted: Wed Feb 04, 2009 9:16 pm Post subject: Reversing propeller

Henry,



In our case, we decided to go with the MT3 bladed propeller with the 

beta. Our Moose will be on amphibious floats, so having beta is a 

nice feature for docking. We have serial number 252; it's been a 

four-year 5000 hour plus project. Our latest frustration is when the 

prop arrived with damage on the underside of one blade.

One concern I have, you may give us some information on this, is the 

out of balance configuration of the elevator. When we installed the 

weights given to us by Murphy, and put the elevator on a stand for 

balancing, we felt it needed to have an additional 6 1/2 pounds of 

weight on the elevator horn, to get it to neutral. After several 

communications back-and-forth with Murphy, they said that was the 

correct design point. However, I come from a flight test background, 

where this much aft balance would be unacceptable. From a flutter 

standpoint you want to have control surfaces bounced to neutral or 

forward of the hinge point. So, if you get a chance, I would be very 

interested in knowing what your balance situation is on the elevator.



We are getting close to flying. When we get the prop situation 

straightened out, weight and balance done, and the paperwork 

submitted, we should be ready to go. But as they say, 90% done with 50% to go.



Good luck, and keep them flying,

Bob Tripp



At 10:14 AM 1/27/2009, you wrote:

 	  Quote: 	
		  



Hi



What Prop are you going with, is it two blade or three blade?



Henry

Moose #294



--------

Currently building a Murphy Moose - any help would be appreciated.





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p 27170#227170

- The Matronics M14PEngines-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?M14PEngines-List

Display posts from previous:

	Matronics Email Lists Forum Index -> M14PEngines-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum