Sport Flying This forum is for those that like to fly just for the enjoyment of flying, and all the airplanes that help them. Discuss here the joys of flying and the airplanes that help you enjoy it.

Best prop for OS FS120 Surpass?

Reply
Old 12-02-2012, 05:53 PM
  #1
Warbird40
Thread Starter
 
Join Date: Sep 2012
Location: Moreno Valley, CA
Posts: 357
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Best prop for OS FS120 Surpass?

I just finished breaking in my OS FS120 Surpass with a 16X6 prop. Which prop would you guys recommend for the most speed? Its installed on a ModelTech Dragon Lady which slow downs and floats for landing, so I am thinking of a 16x8 or so.

Thanks
Warbird40 is offline  
Reply With Quote
Old 12-03-2012, 04:56 AM
  #2
dignlivn
 
Join Date: Oct 2005
Location: Deland, FL
Posts: 1,993
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Best prop for OS FS120 Surpass?







I have a 14x8 on my 120.


Bob
dignlivn is offline  
Reply With Quote
Old 12-03-2012, 10:04 AM
  #3
Warbird40
Thread Starter
 
Join Date: Sep 2012
Location: Moreno Valley, CA
Posts: 357
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Best prop for OS FS120 Surpass?

I went thru all my props and found a 15X8, so I will try it
Warbird40 is offline  
Reply With Quote
Old 01-17-2013, 08:54 AM
  #4
Rate1
 
Rate1's Avatar
 
Join Date: Jul 2004
Location: Stockholm, SWEDEN
Posts: 558
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Best prop for OS FS120 Surpass?

On my OS120FS I had a 16x6 on my previous Extra, on my current Revolver, with same engine, I use a 15x8 for a bit more speed. Both are perfect for this engine.
Rate1 is offline  
Reply With Quote
Old 01-17-2013, 09:43 AM
  #5
Warbird40
Thread Starter
 
Join Date: Sep 2012
Location: Moreno Valley, CA
Posts: 357
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Best prop for OS FS120 Surpass?

Thanks. I did the break in with the MA 16x6 and left it there, but I will try the MA 15x8 after a gallon or so.

Best regards,
Ed
Warbird40 is offline  
Reply With Quote
Old 01-18-2013, 12:14 PM
  #6
jaka
 
Join Date: Dec 2001
Location: Upplands Vasby, SWEDEN
Posts: 7,662
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Best prop for OS FS120 Surpass?

Hi!
The Master A is no good! Much better is a RAM or Graupner "sonic"...or APC. 16x6 or 15x8!
14x8 is way too small!
jaka is offline  
Reply With Quote
Old 01-18-2013, 01:55 PM
  #7
maukaonyx
 
Join Date: Oct 2006
Location: salem, OR
Posts: 1,245
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Best prop for OS FS120 Surpass?

I have a 16x8 MAS on a CG Ultimate, a 15x8 MAS on a Yak-54. Both are not real fast, but seem to be propped just right for those planes, providing fairly constant speed in all attitudes. I think for speed I would go down in diameter an inch and up in pitch by one or two or more, and also go to APC props. Dunno for sure, just guessing. Jon
maukaonyx is offline  
Reply With Quote
Old 01-18-2013, 09:39 PM
  #8
VCScott
 
VCScott's Avatar
 
Join Date: Aug 2006
Location: Valley Center, CA
Posts: 116
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Best prop for OS FS120 Surpass?

Hey Warbird, around 20 years ago I was running an APC 14/12 on mine. It was in my CG Ultimate biplane and it handled it just fine. Was fast for a biplane and still had unlimited vertical. I'm still running the same engine now in my Wildstick with an APC 16.5/5.5. I tried a 15/8 and a 16/6 but with both props it seemed to over rev and knock at full throttle. This engine likes to be loaded, so for better hovering I think I'll try a 17/5 next.
VCScott is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 05:04 AM.