Landing Gear Location

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Allen
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Joined: Mon Aug 06, 2018 11:16 am

Landing Gear Location

Post by Allen » Tue Aug 07, 2018 8:33 am

I'm about to install the ash crossmembers for the main gear. In Don Pietenpol's discussion in his documentation, he mentions locating the gear further forward for a Corvair installation with brakes. Is this what others have done? Of course since I have already built the sides, this moves the gear forward of the spruce cluster of struts on the sides. Stick with the plans?

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taildrags
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Joined: Tue Mar 07, 2017 10:39 pm

Re: Landing Gear Location

Post by taildrags » Wed Aug 08, 2018 10:09 am

Allen; in my opinion, if you haven't fabricated the landing gear legs yet, your best bet is to leave all the fuselage framing 'per plans' since the placement of the load transfer points to the structure are important. You can adjust or change the landing gear geometry when you fabricate the gear legs. There is an excellent series of articles by William Wynne about landing gear, axle placement, and CG that are a must-read on the subject before you build the landing gear.

EAB4
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Joined: Mon Mar 06, 2017 2:08 pm

Re: Landing Gear Location

Post by EAB4 » Wed Aug 08, 2018 12:51 pm

Hi Allen

the actual ash members stay in the per plans location. It is the axle of the landing gear that's moving forward.
As Oscar said, the weight and balance articles are a must read before fabricating the landing gear.

Earl

cantdrawatall
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Joined: Thu May 10, 2018 8:43 pm

Re: Landing Gear Location

Post by cantdrawatall » Wed Aug 08, 2018 7:20 pm

There is an excellent series of articles by William Wynne about landing gear, axle placement, and CG that are a must-read on the subject before you build the landing gear
WHere might I be able to find these articles? In the older issues of the newsletter?

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taildrags
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Re: Landing Gear Location

Post by taildrags » Wed Aug 08, 2018 10:29 pm

Allen;

The set of articles used to be available through Doc Mosher, but it seems that he has not been reachable lately. However, here's the contact information from his website: https://sites.google.com/site/docspiets ... nd-balance .

EAB4
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Joined: Mon Mar 06, 2017 2:08 pm

Re: Landing Gear Location

Post by EAB4 » Thu Aug 09, 2018 7:57 am

I think this has all the articles-
Attachments
Pietenpol_Weight_and_Balance.pdf
(1.52 MiB) Downloaded 100 times

at7000ft
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Joined: Mon Mar 06, 2017 3:06 pm

Re: Landing Gear Location

Post by at7000ft » Thu Sep 20, 2018 12:56 pm

Moved my axles 4 inches forward and has worked fine for 150 hours of flying (and my CG is in the forward area of the range). WW always refers people to pictures of Bernard's last Piet with the axles under the leading edges when people ask this question.

Rick H

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