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Building Tips and technical articles. => 1/2 A building. => Topic started by: Jim Roselle on March 01, 2015, 07:55:03 PM

Title: Left hand props
Post by: Jim Roselle on March 01, 2015, 07:55:03 PM

Does anyone know of a good source for left hand 1/2a props?

Thank you,

Jim

Title: Re: Left hand props
Post by: Paul Smith on March 01, 2015, 08:45:10 PM

I got some from Tom Wilk.  $5 each, unfinished.  Some hand work needed.   I have yet to run them.   Depending on my work, they should be good.

Title: Re: Left hand props
Post by: John Rist on March 01, 2015, 08:53:27 PM

Cox International has them back is stock.

http://coxengines.ca/

Title: Re: Left hand props
Post by: Pat Curry on May 13, 2015, 04:57:46 PM

What are you using those on Jim?  I've got to order some right hand props, but I've got some left hand props and I was wondering if I could just swap out to a left hand starter spring and use them on my C/L models, or if they would make the models torque inwards or something. 

Title: Re: Left hand props
Post by: Jim Roselle on May 22, 2015, 04:45:34 PM

Quote from: Pat Curry on May 13, 2015, 04:57:46 PM

What are you using those on Jim?  I've got to order some right hand props, but I've got some left hand props and I was wondering if I could just swap out to a left hand starter spring and use them on my C/L models, or if they would make the models torque inwards or something. 

Pat,

I was going to use them on a scale project but am going another way now. Definitely use them with a left hand starter, they will torque the model out wards.

Jim

Title: Re: Left hand props
Post by: Trostle on May 22, 2015, 05:20:32 PM

Zinger has 7 inch diameter reverse pitch props with 3 inch and 3.5 inch pitches.  This gives you something to start with if the size does not suit your application.  As with many of the Zinger props, they have good wood and they make excellent prop kits.

Keith

Title: Re: Left hand props
Post by: Mike Keville on May 22, 2015, 09:35:23 PM

A few years ago I ordered some 3-blade 5/3 reverse rotation props from Cox International because I was contemplating a 1/2A profile twin Curtiss 'pusher'.  That didn't happen, so I mailed the props to a friend who was planning an even more exotic design: Northrop XB-35 (which also hasn't yet happened).  Cox Int'l may still stock them.  Might be worth a try.