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Cox Engine of The Month
almost there with the b.. ring
Page 1 of 1
almost there with the b.. ring
its not the prettiest baby but its all mine as far as I have got glue sitting up for tommr. the yellow should have been the top , black top monakote veery old the black would not srink for [bleep] better than this anyway I thought at one time about putting the wing in a vice to get the covering on it , I had got the wing unwarped before I put the monakote on it ,I could hear the joints cracking when I pulled the cover straight >>><< and I am looking foreward to another nosedive
getback- Top Poster
-
Posts : 10143
Join date : 2013-01-18
Age : 66
Location : julian , NC
Re: almost there with the b.. ring
Looks like you are getting somewhere!
Make sure that LE and TE are dead straight.
Ron
Make sure that LE and TE are dead straight.
Ron
Cribbs74- Moderator
-
Posts : 11897
Join date : 2011-10-24
Age : 50
Location : Tuttle, OK
Re: almost there with the b.. ring
Hey Getback, I see you're joining the ranks of the Ringmaster brothers. I haven't got one yet but I'll probably build a Junior sometime.
If you don't mind, I'd like to point out a few things to look for as you finish building.
Next time you have to remove Monokote, use a hair dryer to detach the adhesive as you slowly peel it off. A heat gun can be used but they've been known to accidentally set the plane on fire... Sounds funny, but a guy over at Stunthangar actually slagged his whole new model like that.
If you think some of the glue joints let go when you were removing the black, then this is a good opportunity to use some weights and books to make sure your wing is as straight as possible and re-glue it. Looking at picture #1 when it was still wearing black, that wing would certainly turn it into the circle as if it had a down aileron on the outboard side. Try your best to get that evened out. If you have to use scissors to cut some ribs and re-patch them to even it out, it's worth the extra trouble.
Also, after the wing is straightened, make sure you can eyeball down the plane holding it from the front at eye level and gazing straight over the wing to make sure the stabilizer and wing are perfectly parallel. You should be able to look over the top of the wing, and as you tilt it down, both sides of the stab will disappear behind the wing at the same time. If they are misaligned the plane will try to roll like a screw as it moves forward. Next, check that the distance between the LE of the stab and the TE of the wing is equal on both sides.
As soon as you get that squared away, go ahead and hook up your control rod and get it adjusted with equal up and down elevator throws. I usually pin the bellcrank and elevator at neutral and make a mark on the rod right at the hole in the elevator horn. That's where you'll grip it with your pliers or vice to bend it.
I'm happy to answer any questions, just post them here and we'll get it flying straight and true.
Happy building.
Rusty
If you don't mind, I'd like to point out a few things to look for as you finish building.
Next time you have to remove Monokote, use a hair dryer to detach the adhesive as you slowly peel it off. A heat gun can be used but they've been known to accidentally set the plane on fire... Sounds funny, but a guy over at Stunthangar actually slagged his whole new model like that.
If you think some of the glue joints let go when you were removing the black, then this is a good opportunity to use some weights and books to make sure your wing is as straight as possible and re-glue it. Looking at picture #1 when it was still wearing black, that wing would certainly turn it into the circle as if it had a down aileron on the outboard side. Try your best to get that evened out. If you have to use scissors to cut some ribs and re-patch them to even it out, it's worth the extra trouble.
Also, after the wing is straightened, make sure you can eyeball down the plane holding it from the front at eye level and gazing straight over the wing to make sure the stabilizer and wing are perfectly parallel. You should be able to look over the top of the wing, and as you tilt it down, both sides of the stab will disappear behind the wing at the same time. If they are misaligned the plane will try to roll like a screw as it moves forward. Next, check that the distance between the LE of the stab and the TE of the wing is equal on both sides.
As soon as you get that squared away, go ahead and hook up your control rod and get it adjusted with equal up and down elevator throws. I usually pin the bellcrank and elevator at neutral and make a mark on the rod right at the hole in the elevator horn. That's where you'll grip it with your pliers or vice to bend it.
I'm happy to answer any questions, just post them here and we'll get it flying straight and true.
Happy building.
Rusty
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Re: almost there with the b.. ring
I took another look at the wing this morrn. and will defiantly have to do something about the warp,the core at the fuse is perpendicular to the stabilizer . I have to bring one side up or down depending on witch one , I think the right side will come down a lot easier than the other will go up, since the monakote is loose on that side any way .Rusty this thing is really stiff when you try and twist the wing any suggestions on how /where to start cutting I am thinking the te ? at the far right thank for getting me to recheck it
getback- Top Poster
-
Posts : 10143
Join date : 2013-01-18
Age : 66
Location : julian , NC
Re: almost there with the b.. ring
If it were me, I would remove the covering and see how it looks on it's own. You said you heard things cracking when you shrunk it so at this point it would be best to check the integrity of the wing.
Once the covering is off you may find you have to debond some joints to straighten the wing.
Good luck with it, a little extra time now will pay dividends in the air.
Ron
Once the covering is off you may find you have to debond some joints to straighten the wing.
Good luck with it, a little extra time now will pay dividends in the air.
Ron
Cribbs74- Moderator
-
Posts : 11897
Join date : 2011-10-24
Age : 50
Location : Tuttle, OK
Re: almost there with the b.. ring
Thanks man I am still thinking about what I am going to do, can't give it a good fly if it s not right I knowCribbs74 wrote:If it were me, I would remove the covering and see how it looks on it's own. You said you heard things cracking when you shrunk it so at this point it would be best to check the integrity of the wing.
Once the covering is off you may find you have to debond some joints to straighten the wing.
Good luck with it, a little extra time now will pay dividends in the air.
Ron
getback- Top Poster
-
Posts : 10143
Join date : 2013-01-18
Age : 66
Location : julian , NC
Re: almost there with the b.. ring
Hey no problem!
Always glad to help, it's what we do here. Let us know how it goes along the way.
Ron
Always glad to help, it's what we do here. Let us know how it goes along the way.
Ron
Cribbs74- Moderator
-
Posts : 11897
Join date : 2011-10-24
Age : 50
Location : Tuttle, OK
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