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mounting quick-connect bellcrank brackets into

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josok-e(at)ukolo.fi
Guest

Posted: Sun Dec 30, 2007 3:22 pm Post subject: mounting quick-connect bellcrank brackets into

Hi Greg,



The brackets should be inside the outline of the cockpit module. Have a look at my efforts there, the link is http://www.europaowners.org/modules.php?set_albumName=album73&sid=a3309a4ca706651d65ddf4ee58137e4b&op=modload&name=gallery&file=index&include=view_album.php

There are a few pictures that clearly show the situation. Maybe the brackets are upside down, or port-starboard interchanged? Later, once the cockpit module is mounted in the fuselage you will lap up the brackets to the fuselage. If wrong, better to correct now. 



Regards,



Jos Okhuijsen

Visit -  www.EuropaOwners.org



Attachments: 

http://www.europaowners.org//zfiles/img_1737.sized_198.jpg

ptag.dev(at)tiscali.co.uk
Guest

Posted: Sun Dec 30, 2007 4:29 pm Post subject: mounting quick-connect bellcrank brackets into

Hi! Greg

I'm very late entering this one but be sure to alternate male/female

..female/male to make the reconnect fool proof. I remember assisting

connecting William Mills once for him only to hear he flew home without

an ASI because they were crossed.

Regards

Bob H G-PTAG



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gregoryf.flyboy(at)comcas
Guest

Posted: Sun Dec 30, 2007 5:25 pm Post subject: mounting quick-connect bellcrank brackets into

Jos,



Thanks for the comment and picture link. I seem to have the orientation of

the brackets ok (the holes drilled into the bracket are in the same spot as

in your pictures), and have trial fitted the wing bellcranks to the cockpit

bellcranks by inserting the wings, and they mate very well. I hate to undo

that which mates so well, but will have to, if that's what it takes. I will

prob do a trial fit in the fuselage, and if the bracket leans inboard, I

won't have a choice, but to redo. Then give each bracket top an inboard

twist around the positioning bolt by about 3/8" (and consequently the

bracket bottom an outboard twist), and a new base of araldite.



I am going to think about it for a little while though, and am open to any

more ideas or enlightenments from anyone.



Part of the bellcrank is outside the fuselage shell as well, in the area of

the hole in the side of the fuselage. I assume this is normal, since the

dimensions are set by the hole spacing in the wing spars. Can you or someone

please confirm this?



Thanks,

Greg Fuchs

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gregoryf.flyboy(at)comcas
Guest

Posted: Sun Dec 30, 2007 5:25 pm Post subject: mounting quick-connect bellcrank brackets into

Thanks Bob, but I am just a tiny bit confused.

Were you talking about the pitot tube connectors?

I am talking about the bellcrank support brackets being possibly slightly

outboard of the airfram.

But I will be sure to work on your experience and take that advice when I

get there, and alternate the pitot connectors. I definately don't want to

lose my ASI, either. 



If you meant something else, please set me straight.



Thanks again, and Best Regards,

Greg



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josok-e(at)ukolo.fi
Guest

Posted: Sun Dec 30, 2007 10:44 pm Post subject: mounting quick-connect bellcrank brackets into

[quote:6192b041ef="gregf"]

Part of the bell crank is outside the fuselage shell as well, in the area of

the hole in the side of the fuselage. I assume this is normal, since the

dimensions are set by the hole spacing in the wing spars. Can you or someone

please confirm this?



-----[/quote:6192b041ef]



Yes, the bell cranks move outside, that's normal. From your reply i now understand that the brackets are rotated - top out bottom in -  Yes, you should correct it. The inside of the brackets, after glassing in, should be about 90 degrees to the sides. The manual also calls for the brackets to be squared up, also that is quite important to make fitting the wings easier. 



Thinking back, i see now what my problem was here. Later, when fitting the wings, the manual calls for a check of the line up of the bell crank. One of them was not in line anymore, while i am quite sure it was ok in the stage you are in now. The brackets, until glassed in, are flexible enough to be pushed around, out of square. That must have happened, not much, but just the 5 millimeters that were missing. Please check the squareness again before glassing 



Regards,



Jos Okhuijsen

Visit -  www.EuropaOwners.org

ptag.dev(at)tiscali.co.uk
Guest

Posted: Mon Dec 31, 2007 2:34 am Post subject: mounting quick-connect bellcrank brackets into

Hi! Greg

Sorry if I confused the issue ....something told me you were talking

quick connects being the Pitot/Static pipes.

Regards

Bob H 



Do not archive



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gregoryf.flyboy(at)comcas
Guest

Posted: Mon Dec 31, 2007 2:51 am Post subject: mounting quick-connect bellcrank brackets into

Thanks Jos, 



I will measure the squareness of the brackets, and will report my findings.

I tried to get them vertical with respect to the ground, but they may be out

by a small amount, or I might have to actually taper the top of the brackets

in towards each other slightly. More later...



I am sure that this has affected more than a few builders, the dimensions

are a bit tight near the sidewall. 



It is only the very upper outboard back part (the back part with the

bellcrank mounted to it) of the bracket that wants to lean outward of the

fuselage by up to 1 quarter inch, and only the corner, so it would be very

easy to miss. However, I will check for my own assumed inaccuracies first...



Greg Fuchs (A050)



-----[/quote:6192b041ef]



Yes, the bell cranks move outside, that's normal. From your reply i now

understand that the brackets are rotated - top out bottom in -  Yes, you

should correct it. The inside of the brackets, after glassing in, should be

about 90 degrees to the sides. The manual also calls for the brackets to be

squared up, also that is quite important to make fitting the wings easier. 



Thinking back, i see now what my problem was here. Later, when fitting the

wings, the manual calls for a check of the line up of the bell crank. One of

them was not in line anymore, while i am quite sure it was ok in the stage

you are in now. The brackets, until glassed in, are flexible enough to be

pushed around, out of square. That must have happened, not much, but just

the 5 millimeters that were missing. Please check the squareness again

before glassing 



Regards,



Jos Okhuijsen

gregoryf.flyboy(at)comcas
Guest

Posted: Mon Dec 31, 2007 3:35 am Post subject: mounting quick-connect bellcrank brackets into

No prob. Still a good hint. 



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gregoryf.flyboy(at)comcas
Guest

Posted: Wed Jan 02, 2008 5:18 am Post subject: mounting quick-connect bellcrank brackets into

First of all, thanks for all the comments so far.



I just measured the distance between the two top outboard edges of the

cockpit bellcrank bracket, and compared that with the bottom two. If they

were parallel, I would expect the values to be close. (unless it was a

parallelogram, but then only one side would be affected this way, with

respect to the lower bracket, and this is not the case) The distances came

in at just over 42 1/4" for the top, and just shy of 42 3/8" for the bottom.

Thus they are off only by 1/8" tops. The bottom dimension is the longer

dimension, and the bottom side of the bracket(bellcrank end) is the side

that hits up against the fuselage, not the top side that I said earlier.

Since test fitting into the actual boat shell was SO close to working, I

ground 1/8" from just the corner of the 3mm plywood and metal. This needed

to be done on both sides, since they were both touching.  This will have

negligible effect on the strength of the bracket, which will be

bond-strengthened later, and am satisfied that everything clears now, and

can move on without worry.



What this tells me: 



At least with MY cockpit module, had I gotten both brackets perfectly

vertical and square with each other (the manual just says to visually align

them), I feel there could still be a slight push on one or both of the

brackets by the fuselage shell when bonding the cockpit module in, and it

may also depend on rivet location when bonding, or the squeezing applied by

the fuselage holder, etc. We are talking 1/8" or less here, so it is not

much. I am pretty convinced now that if the problem exists in other modules,

and not caught, many others may have had a small bellcrank alignment issue

after bonding due to this reason. It would have a tendency to separate the

bellcranks from mating, by only a small extra amount. If the distance

between the top brackets (with respect to the aircraft) was the longer

dimension by 1/8", this problem would probably go away. Any more than that,

might start to make the top part of the bracket touch.



Regards,

Greg Fuchs (A050)

kevann(at)gotsky.com
Guest

Posted: Wed Jan 02, 2008 6:41 am Post subject: mounting quick-connect bellcrank brackets into

Sounds like you have it figured out. The brackets on mine came out very 

similar to yours, as I recall. I called the factory and they said just 

file off the corners so they do not touch the canoe.



Kevin



Greg Fuchs (FB) wrote:

 	  Quote: 	
		   



 First of all, thanks for all the comments so far.



 I just measured the distance between the two top outboard edges of the

 cockpit bellcrank bracket, and compared that with the bottom two. If they

 were parallel, I would expect the values to be close. (unless it was a

 parallelogram, but then only one side would be affected this way, with

 respect to the lower bracket, and this is not the case) The distances came

 in at just over 42 1/4" for the top, and just shy of 42 3/8" for the bottom.

 Thus they are off only by 1/8" tops. The bottom dimension is the longer

 dimension, and the bottom side of the bracket(bellcrank end) is the side

 that hits up against the fuselage, not the top side that I said earlier.

 Since test fitting into the actual boat shell was SO close to working, I

 ground 1/8" from just the corner of the 3mm plywood and metal. This needed

 to be done on both sides, since they were both touching.  This will have

 negligible effect on the strength of the bracket, which will be

 bond-strengthened later, and am satisfied that everything clears now, and

 can move on without worry.



 What this tells me: 



 At least with MY cockpit module, had I gotten both brackets perfectly

 vertical and square with each other (the manual just says to visually align

 them), I feel there could still be a slight push on one or both of the

 brackets by the fuselage shell when bonding the cockpit module in, and it

 may also depend on rivet location when bonding, or the squeezing applied by

 the fuselage holder, etc. We are talking 1/8" or less here, so it is not

 much. I am pretty convinced now that if the problem exists in other modules,

 and not caught, many others may have had a small bellcrank alignment issue

 after bonding due to this reason. It would have a tendency to separate the

 bellcranks from mating, by only a small extra amount. If the distance

 between the top brackets (with respect to the aircraft) was the longer

 dimension by 1/8", this problem would probably go away. Any more than that,

 might start to make the top part of the bracket touch.



 Regards,

 Greg Fuchs (A050)

gregoryf.flyboy(at)comcas
Guest

Posted: Wed Jan 02, 2008 3:48 pm Post subject: mounting quick-connect bellcrank brackets into

Thanks Kevin,

It is good to hear of a few others seeing this too.

It looks like I chose a familiar fix-it route, thanks for the confirmation.

Regards,

Greg



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