Matronics Email Lists Forum Index Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
 
 Get Email Distribution Too!Get Email Distribution Too!    FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

firestar prop size?

 
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> Kolb-List
View previous topic :: View next topic  
Author Message
flymichigan(at)comcast.ne
Guest
PostPosted: Wed Jul 11, 2007 8:08 pm    Post subject: firestar prop size? Reply with quote
Hello everyone. Does anyone know the recommended prop size for a Firestar I with a 447. I am not reaching full RPMs. My plane has a wood 66x33 which I am guessing is my problem. Any ideas?

Thanks,
Bryan Dever

- The Matronics Kolb-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?Kolb-List
Back to top
John Hauck



Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)
PostPosted: Thu Jul 12, 2007 3:36 am    Post subject: firestar prop size? Reply with quote
| Hello everyone. Does anyone know the recommended prop size for a
Firestar I with a 447. I am not reaching full RPMs. My plane has a
wood 66x33 which I am guessing is my problem. Any ideas?
|
| Thanks,
| Bryan Dever
Bryan D:
Bryan D:

66X32 was what I was running on my 1986 FS.

Not all wooden props are created equal. I also ran a 66X30 Jim Culver
prop. The GSC two blade wooden prop that is still hanging around, if
I remember correctly, was pitched a little lighter than the 66X30
Culver prop.

For me, ideal pitch is WOT, straight and level flight, just bump the
redline for max continuous rpm, which is 6,500 rpm for a 447. Will
produce the best climb and cruise.

john h
mkIII

john h

- The Matronics Kolb-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?Kolb-List

_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama
Back to top
View user's profile Send private message Send e-mail
jbhart(at)onlyinternet.ne
Guest
PostPosted: Thu Jul 12, 2007 6:31 am    Post subject: firestar prop size? Reply with quote
At 04:06 AM 7/12/07 +0000, you wrote:
Quote:


Hello everyone. Does anyone know the recommended prop size for a Firestar I with a 447. I am not reaching full RPMs. My plane has a wood 66x33 which I am guessing is my problem. Any ideas?


Bryan,

If your engine is running fine and you do not wish to purchase a new propeller, make a fixture and start cutting the tips off the propeller. Take no more that a half and inch at a time, and fly with it after cutting to see how it performs. If the engine does not come up to speed take another half inch off. When you get the engine speed where you want it, check the balance.

Jack B. Hart FF004
Winchester, IN

- The Matronics Kolb-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?Kolb-List
Back to top
flymichigan(at)comcast.ne
Guest
PostPosted: Thu Jul 12, 2007 12:49 pm    Post subject: firestar prop size? Reply with quote
Thanks Jack and John. I may try cutting the ends, or I may just have to pick up an adjustable prop at Oshkosh.

Bryan Dever

do not archive
Quote:

If your engine is running fine and you do not wish to purchase a new propeller,
make a fixture and start cutting the tips off the propeller. Take no more that
a half and inch at a time, and fly with it after cutting to see how it performs.
If the engine does not come up to speed take another half inch off. When you get
the engine speed where you want it, check the balance.

Jack B. Hart FF004
Winchester, IN



- The Matronics Kolb-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?Kolb-List
Back to top
Display posts from previous:   
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> Kolb-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


Powered by phpBB © 2001, 2005 phpBB Group