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More Mod 78 Fun!

 
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djaflyact



Joined: 14 Oct 2013
Posts: 27
PostPosted: Wed Nov 27, 2013 7:15 pm    Post subject: More Mod 78 Fun! Reply with quote
Today, I have determined that the next wing to go into the fuselage will not work. I made a board the right thickness and did a trial run. It looked like it it wasn't going to fit and the board verified. The problem is the aileron control arm bolts (CS08). It looks like it might clear the CS08 arm, but not the bolt heads.

There are some possibilities to address this new problem. Replace the AN bolts with counter sunk screws. That might not be enough and the CS08 bracket might be too close to the spar.

How about bending (adjusting) the CS08 bracket? The starboard CS08 has plenty of clearance and could be bent forward to allow more clearance of the cross link with the fuel tank. The port S08 could be bent toward the rear to allow more clearance to the new spar. It has plenty of clearance with the fuel tank.

Anybody know if the CS08 arms can be removed? That would make modifying them easier. Any ideas for tweaking them in place?

As Rozanna Rozanna Danna used to say - "If its not one thing, its something else!"
Thanks,

Dave
A227
Mini U2

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peterz(at)zutrasoft.com
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PostPosted: Thu Nov 28, 2013 8:29 am    Post subject: More Mod 78 Fun! Reply with quote
Hi Dave,
Sorry to hear of your fitment challenges RRD indeed!
Just curious if you heard back from Charlie regarding his ballpark figure?
Cheers and blue skies,
Pete
On Wed, Nov 27, 2013 at 10:15 PM, djaflyact <djaflyact(at)gmail.com (djaflyact(at)gmail.com)> wrote:
[quote]--> Europa-List message posted by: "djaflyact" <djaflyact(at)gmail.com (djaflyact(at)gmail.com)>

Today, I have determined that the next wing to go into the fuselage will not work. I made a board the right thickness and did a trial run. It looked like it it wasn't going to fit and the board verified. The problem is the aileron control arm bolts (CS08). It looks like it might clear the CS08 arm, but not the bolt heads.

There are some possibilities to address this new problem. Replace the AN bolts with counter sunk screws. That might not be enough and the CS08 bracket might be too close to the spar.

How about bending (adjusting) the CS08 bracket? The starboard CS08 has plenty of clearance and could be bent forward to allow more clearance of the cross link with the fuel tank. The port S08 could be bent toward the rear to allow more clearance to the new spar. It has plenty of clearance with the fuel tank.

Anybody know if the CS08 arms  can be removed? That would make modifying them easier. Any ideas for tweaking them in place?

As Rozanna Rozanna Danna used to say - "If its not one thing, its something else!"


Thanks,

Dave
A227
Mini U2




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djaflyact



Joined: 14 Oct 2013
Posts: 27
PostPosted: Fri Nov 29, 2013 6:56 pm    Post subject: Re: More Mod 78 Fun! Reply with quote
More information on the dreaded Mod 78. It looks like the interference is the bolt heads on the top of the CS08 brackets. By going with countersunk screws, the spar should clear. Stay tuned.

I have not gotten the asking price for Charlie Bock's Tri-gear classic. I think it is around $40K, but I need to verify that.

Dave
A227
Mini U2

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