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Engine basics => Engine set up tips => Topic started by: Bill Little on February 12, 2011, 09:53:27 AM

Title: Master Airscrew 11" 3 blade prop
Post by: Bill Little on February 12, 2011, 09:53:27 AM

Has anyone used these on their OS .46LA? 

If so, how well does it work?

Thanks!
Bill

Title: Re: Master Airscrew 11" 3 blade prop
Post by: Steve Helmick on February 12, 2011, 06:35:48 PM

One of the Californians (Wade Fikes?...not real sure of name or spelling) flew a green USA-1 with a .46LA (which boggled my mind) at GSSC in Clovis ('08?). I asked him the prop...a 12-6 Master Airscrew 3 blade clipped to 11.5" dia. It flew quite well, so I asked if it was super light or something...no, over 60 oz. So, I'd look at that 12-6 also.

Bryan Carr of Calgary likes the 10-5 3 blade on his XLS .36...might work on the round head XL, too.  Bryan said the pitch was about 3.5", so you might want to try an 11-6 on the .46.   I'd suggest giving them a try if you really need a cheap 3 blade.  Report back!  H^^ Steve

Title: Re: Master Airscrew 11" 3 blade prop
Post by: Joe Yau on February 12, 2011, 07:52:54 PM

Quote from: Bill Little on February 12, 2011, 09:53:27 AM

Has anyone used these on their OS .46LA?  

If so, how well does it work?

Thanks!
Bill

I've been using a 12x6 MA 3-blade clipped to 11.75" / repitched to 4", and it has been working great on my Pathfinder. The .46LA has more torque then most people thinks.. It actually turned a full size repitched MA 12" x 4 -  3-blade no problem, no sagging through the sqr-8 & OH-8, lots of power on climbs.

Title: Re: Master Airscrew 11" 3 blade prop
Post by: Balsa Butcher on February 12, 2011, 08:46:31 PM

Actually it's Carter Fisk, he gets real good performance from that prop and consistent impressive runs with the LA-46 that is turning it. Does a pretty good pattern with that USA-1 also. Probably worth a try.  8)

Title: Re: Master Airscrew 11" 3 blade prop
Post by: Bill Little on February 13, 2011, 12:21:04 AM

I got a couple 11-7 MAS 3 blades on the advice of Willis Swindell a few years back.  Not for a LA .46 at the time though.  He said they pitch out around 5".  Have not used the props yet, but seems the LA .46 should like them.  At about 5" pitch and 3 blades at 11" dia., it should compare, somewhat, to the 12.25X 3.75 APC as to load.  And let the engine run at a "slightly lower rpm.

Possible usage?  Oriental and need prop clearance, can't go over 11" with out changes.  Will give it a shot ASAP.  Maybe this afternoon!

Big Bear

Title: Re: Master Airscrew 11" 3 blade prop
Post by: Clint Ormosen on February 14, 2011, 05:16:01 AM

Quote from: Pete Cunha on February 12, 2011, 08:46:31 PM

Actually it's Carter Fisk,

Ummm........actually it's Carter Fickes.................. ;)

Title: Re: Master Airscrew 11" 3 blade prop
Post by: Frank Imbriaco on February 14, 2011, 07:41:56 PM

 Weight for the  Master Airscrew 3 Blades that are suitable for the OS LA 46 ?