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General control line discussion => Open Forum => Topic started by: Bootlegger on October 29, 2013, 12:14:58 PM

Title: ...props...
Post by: Bootlegger on October 29, 2013, 12:14:58 PM

 Been running a 12.25x3.75 on my OS LA 46 I sure could use more "drive".
 Seems that I read that someone had reduced the dia on these props by 1/2", has anybody got some suggestions?

 I'm not sure about the RPM range on this engine, but due to tank capacity being less than 4 ounces, I'm running only 2.5 % nitro and have about 6-8 laps at the end of the pattern..

  Suggestions sure would be helpful...

     Thanks a lot...

Title: Re: ...props...
Post by: Dave_Trible on October 29, 2013, 01:39:49 PM

Gil, try the APC 11.5 x 4 and 11 x4.  You' ll get more punch.  Try about 9400 rpm or a solid but rich two cycle and forget the 2-4 break.  These engines are designed originally to be RC engines and don't know what the FoxCrack is.

Dave

Title: Re: ...props...
Post by: Steve Helmick on October 29, 2013, 06:55:20 PM

Look in the Engine Setup forum that Randy Smith moderates. At the top, you'll find a pinned subject that is .46LA specific, so you should find a lot of options there. Remember that less prop load will increase your run time and allow you to run more nitro.  @@^ Steve

Title: Re: ...props...
Post by: Matt Colan on October 29, 2013, 06:59:36 PM

I'm running a Majic 12.25-4.25 two blade and have not had any issues in the Florida air. I'm also getting a beautiful 4-2 break at 9300-9400 launch RPM.

Title: Re: ...props...
Post by: Andrew Saunders on October 29, 2013, 07:08:40 PM

I use a master airscrew 11x4. Also an apc 11x4 and get plenty of power.

Title: Re: ...props...
Post by: Garf on October 29, 2013, 09:26:41 PM

I am using an XOAR 12 X 4 using 3 oz for the pattern. This is with Sig 5% nitro, 20% 50/50 oil.

Title: Re: ...props...
Post by: bob whitney on October 29, 2013, 09:33:05 PM

email me at f2cracer@aol.com  i have a prop that works very good on the 46  Bob

Title: Re: ...props...
Post by: Bootlegger on October 30, 2013, 12:54:00 PM

 Bob W, I sent ya' an e mail titled props.......

Title: Re: ...props...
Post by: Will Davis on November 01, 2013, 07:28:43 PM

Bob makes some nice props, been using his for several years, he has a very good  13 6 prop for the st 60 ,

 For a mass produced prop ,  I would  try the APC 12/4 , great prop , reasonable priced, very consistent in pitch from one prop to the other

Title: Re: ...props...
Post by: Scott Richlen on November 02, 2013, 05:42:42 PM

I am running a Zinger Pro 12-4 on the LA-46 in my Fun-51.  Dick Houser set up the engine for me.  Uses 5 and 3/8ths ounces of 5% to get through the pattern.  I am very happy with this prop.

Scott