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Author Topic: OS LA .40 hold down screws"  (Read 488 times)

Offline Avaiojet

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OS LA .40 hold down screws"
« on: May 01, 2012, 01:13:18 PM »
I dug up my OS LA .40 today, time to drill holes for the blind nuts.

I couldn't put a 6-32 bolt through the hole on the engine flange.

4-40? Is this what guys are using to hold them down?

Yes, I know there's four.

Charles
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Offline Mark Scarborough

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Re: OS LA .40 hold down screws"
« Reply #1 on: May 01, 2012, 01:15:18 PM »
yes
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Offline Avaiojet

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Re: OS LA .40 hold down screws"
« Reply #2 on: May 01, 2012, 01:33:21 PM »
Quote from: Mark Scarborough on May 01, 2012, 01:15:18 PM
yes

Thanks Mark!

Mark, back to the tank thing on The New American.

I cut the engine mounts to be able to adjust the tank up and down.

To slide it in, I would have to remove the upper part of the firewall, F1.

What about a removable tank hatch on top, are guys doing this?

The examples of models are endless that could have a hatch.

I know you know, so what say?

Charles
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Amazing how ignorance can get in the way of the learning process.
If you're Trolled, you know you're doing something right.  Alpha Mike Foxtrot. "No one has ever made a difference by being like everyone else."  Marcus Cordeiro, The "Mark of Excellence," you will not be forgotten. "No amount of evidence will ever persuade an idiot."- Mark Twain. I look at the Forum as a place to contribute and make friends, some view it as a Realm where they could be King.   Proverb 11.9  "With his mouth the Godless destroys his neighbor..."  "Perhaps the greatest challenge in modeling is to build a competitive control line stunter that looks like a real airplane." David McCellan, 1980.

Offline Mark Scarborough

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Re: OS LA .40 hold down screws"
« Reply #3 on: May 01, 2012, 01:49:37 PM »
Making a removable hatch? It will weaken the structure of the nose,this makes it prone to vibration and failure,, as well as creating fuel foaming issues,, as well as making the most likely to be ugly part ( the separation line between the hatch and fuse) the most visible part right on top,, t, there are "modern" methods available for creating an engine crutch that resist these problems,,
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