Dihederal on a Bushmaster

[Rman]

Hello I was looking for information on how much dihederal I could have on my wings. Here's what happened I ordered new sealed struts too replace unsealed ones and the fork hole on the new ones works out too be 1/2" longer than the old ones. For them too fit it has too be screwed all the way in against the locknut, but if I put them on it will add more dihederal too the wing right now it is just under 1 degree what will happen when I put them on and it add more dihederal?

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[cubdriver2]

Can you find a thinner jam nut?



Glenn

 

[Rman]

The jam nut is 3/8 thick I would need too remove it and still would need another 1/8. I wish I took some pics too post they built a extension piece on the fuselage because the stock ones were too short I take them off there is only 5 threads in the strut if I could get longer bolts would work too.

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[BC12D-4-85]

What struts and length fit a Bushmaster?

Gary

 

[Rman]

They used struts off of a supercub

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[Mark_Moyle]

Wonder how deep the threads are inside the bushing that is welded into the end of the strut? Perhaps the strut can be shortened at the fuselage end?


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[Rman]

I'm not too sure I'll have too measure tommorow that could be a possibility too do that. I wonder how many threads are needed in the strut.

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[DENNY]

So the first thing to do is to put them on and figure out what the dihedral really is!!!! Don't guess, you need hard numbers!!! Some prefer a bit more dihedral in the wings, they say it makes for a more stable plane. Others say it does not matter!! The back strut sets the twist that matters more. If the front strut is too long from a twist standpoint than you have to fix/replace it before you fly. Are you sure it is Cub struts that they use? The pacer fuselage is not as high as a cub (4 inch give or take) Between strut and wing attachment. So if you put stock cub or pa 14 wings on it the struts won't fit. I may be wrong but I think both Bushmaster and Producer need custom struts.
DENNY

 

[skywagon8a]

The jam nut is 3/8 thick I would need too remove it and still would need another 1/8. I wish I took some pics too post they built a extension piece on the fuselage because the stock ones were too short I take them off there is only 5 threads in the strut if I could get longer bolts would work too.

Tell us about this extension piece. Is it a bolt on part? If so just make a new one of the proper dimensions.

 

[Rman]

I will post some pictures when I get too the plane today

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[C-FIJK]

Put the struts on and run a string from wing tip to wing tip and measure the dihedral post some pics

 

[Rman]

Thanks for all the input we ended up putting the old ones back on the ame that was working on the plane had too leave too go check out a plane in Minnesota so hopefully we will get back at it in a couple weeks when he gets back. I will post some pics when we start working on it again

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[Rman]

Here is a picture of where the strut attaches too the fusalage

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[Rman]

Sorry I didn't get the pics in last post

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[skywagon8a]

With a little ingenuity you ought to be able to make a new fitting to compensate for the 1/2". It may not look exactly like that one. Just make sure that you do not build in bending loads on the fitting.

 

[Southern Aero]

Like Skywagon said, you could rework that adapter/extension piece. The other option would be to rework the struts. Carefully remove the barrel and re-position it shorter. If you happen to damage the barrel I have some of that style........ or even reuse one out of a salvaged/damaged strut. There's some laying around somewhere from a bent airframe.

 

[Rman]

Thanks that's what my ame had suggested too

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