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Author Topic: Twin Pusher set up  (Read 782 times)
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FLYACE1946
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« on: March 16, 2017, 01:27:10 PM »

How do you set up the proper prop rotation on a twin pusher ?? I need to know when viewed from behind the airplane.  It's a Skidoo 23.
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Barrie
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« Reply #1 on: March 18, 2017, 05:12:37 AM »

I would say left prop clockwise, right hand anti clock Grin
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lincoln
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« Reply #2 on: March 20, 2017, 01:36:59 AM »

I don't think it's that critical. I seem to recall mine is, as viewed from behind, clockwise on the right and counterclockwise on the left. But I'm guessing that the other way might be almost as good, and possibly less vulnerable if one prop ends up putting out more power than the other at some point. However, I haven't had trouble with that.

My twin pusher has detachable prop bearings, so it would be easy to do the other way. If I recall it's 24 or 26 inches and packs in a slightly extended computer keyboard box.

In this picture, it seems to be the other way around, but maybe I didn't pay attention, since I was just assembling it for the picture:
Twin Pusher set up
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FLYACE1946
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« Reply #3 on: March 22, 2017, 05:31:38 PM »

The picture of a group of twin pushers came the other day in the Flying Aces Club National News. The picture just might be what I need to see. Time to get mine finished and flying with a little over a week to be ready for the mass launch coming up.  Thanks for your replies.
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RandyW
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« Reply #4 on: September 19, 2017, 09:56:02 PM »

According to my Complete Model Aircraft Manual Revised edition 1938, a twin pushers left prop should rotate counter clockwise and the right prop should rotate clockwise when viewed from the rear. I built the Mile a Minute twin pusher and discovered I had the props rotating the wrong direction.  Turned the a-frame upside down and solved the problem! Truth be told I don't have a clue why rotation would be an issue as long as the props counter rotated.
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FLYACE1946
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« Reply #5 on: September 20, 2017, 01:22:00 PM »

Thanks Randy for the information. I still need to get mine going so tomorrow I just might take it out flying. Thanks to everybody for the help.
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martina
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« Reply #6 on: November 07, 2017, 05:54:44 PM »

I don't think it's that critical. I seem to recall mine is, as viewed from behind, clockwise on the right and counterclockwise on the left. But I'm guessing that the other way might be almost as good, and possibly less vulnerable if one prop ends up putting out more power than the other at some point. However, I haven't had trouble with that.

My twin pusher has detachable prop bearings, so it would be easy to do the other way. If I recall it's 24 or 26 inches and packs in a slightly extended computer keyboard box.

In this picture, it seems to be the other way around, but maybe I didn't pay attention, since I was just assembling it for the picture:


What is the design you have there? Is a plan available? Any other information please! I tend to agree on the prop rotation issue.

Thanks, Martin.
Twin Pusher set up
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FLYACE1946
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« Reply #7 on: November 07, 2017, 06:00:44 PM »

I still want better conditions in order to fly my Skidoo 23. I really like how everybody says wind them the way that works. Thanks for helping me with this question.
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Art356A
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« Reply #8 on: November 07, 2017, 11:52:38 PM »

Here's the plan...

https://outerzone.co.uk/plan_details.asp?ID=2376


a.
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My arms are so weak, it's like that pushup I did last year was a total waste.
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