CG Big Stik 60
#1
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From: MUSKOGEE, OKLAHOMA
I am just returning to the sport. Always agonized while building. (OCD)
After checking the wing connection as per instructions on my Big Stick 61 everything looked great in the seem. However ( epoxy has set up ) now that I check the wing it seems to be about 1/4 inch off plumb out at the leading edge tip. It obvious the wing is a done deal. Should I be overly concerned about this or just move on and install the horizontal stab perpendicular to the fuse? I could purchase another wing set, and would do so if I could figure out how to make sure problem wouldn't repeat. Any comments and suggestions. I am using this plane just to get me back into flying and really don't expect it to last all that long. Never built an ARF before always kits ( been out of this sport 28 years ). You could dry fit most everything in the kit and make sure of things being plumb or correct. With the ARF the surfaces they advise to sand to correct have the overlap of covering. So if you sand you create a new situation to correct. I guess I could use epoxy and cover these areas if need be. Am I being too compulsive?
After checking the wing connection as per instructions on my Big Stick 61 everything looked great in the seem. However ( epoxy has set up ) now that I check the wing it seems to be about 1/4 inch off plumb out at the leading edge tip. It obvious the wing is a done deal. Should I be overly concerned about this or just move on and install the horizontal stab perpendicular to the fuse? I could purchase another wing set, and would do so if I could figure out how to make sure problem wouldn't repeat. Any comments and suggestions. I am using this plane just to get me back into flying and really don't expect it to last all that long. Never built an ARF before always kits ( been out of this sport 28 years ). You could dry fit most everything in the kit and make sure of things being plumb or correct. With the ARF the surfaces they advise to sand to correct have the overlap of covering. So if you sand you create a new situation to correct. I guess I could use epoxy and cover these areas if need be. Am I being too compulsive?
#2
Not really.
Welcome to RCU !!!
Straight planes tend to flight better, but 1/4" in a 0.60 cu.in. model never caused a disaster.
Don't sweat it, ....enjoy the process of building, .....and don't crash it, it can live long to fly much.
Welcome to RCU !!!
Straight planes tend to flight better, but 1/4" in a 0.60 cu.in. model never caused a disaster.
Don't sweat it, ....enjoy the process of building, .....and don't crash it, it can live long to fly much.
#3
Boompa, Hears an idea on how to straighten the wing. Get two straight 1/4 round dowels. Tape one on each wing tip to the bottom of the wing where they stick out the front of the wing like gun sights. On a big stick, the bottom of the wing from the spar to the trailing edge is flat.
Hold the wing up to your shoulder like a rifle and sight down the sticks like you are aiming a rifle. You should see how far off the alignment is.
Now, get someone to help you. Let them hold one wing tip firm while you twist the wing to line up the gun sight sticks. You will see wrinkles form in the covering.
Take a heat gun used for shrinking monokote and shrink the wrinkles out of the covering. Keep doing this until the gun sight sticks line up together.
Frank
Hold the wing up to your shoulder like a rifle and sight down the sticks like you are aiming a rifle. You should see how far off the alignment is.
Now, get someone to help you. Let them hold one wing tip firm while you twist the wing to line up the gun sight sticks. You will see wrinkles form in the covering.
Take a heat gun used for shrinking monokote and shrink the wrinkles out of the covering. Keep doing this until the gun sight sticks line up together.
Frank
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From: MUSKOGEE, OKLAHOMA
Thanks Florida, I needed the push. I may have expected too much from this ARF. It looks like I need to add some on the inside of the fuselage wing saddle area. They have a hard narrow surface (fuselage) contacting a broad soft one (wing). I don't know who E.H. is but he or she is a wise individual. Of course that's just my opinion.
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From: MUSKOGEE, OKLAHOMA
Thanks Texas for the information. I may have to drive down to Grand Prairie for a helping hand, I've been through there many times. Nice area. My wife isn't a lot of help. Says she doesn't want the blame if it doesn't turn out right. I'm now officially an Okie now however I was born in Monahans TX. They let me visit home once in a while but won't let me stay too long.
#6
Your description is not clear. Is the wing twisted, or is it not level to the fuselage? If it's the former, then the heat gun process above will fix it. It will fix tail pieces too. I have a Kaos that came from the factory all banana'ed up. It's straight as can be now from a couple of sessions of twisting and shrinking. If it's the latter, don't worry about it. Get the horizontal stabilizer straight with the wing and the vertical stab perpendicular, and it will fly fine. Sanding the wing saddle is a fix for when you realize that the horizontal stab is not level to the wing and you can't remove it to fix it.
#8
Thanks Texas for the information. I may have to drive down to Grand Prairie for a helping hand, I've been through there many times. Nice area. My wife isn't a lot of help. Says she doesn't want the blame if it doesn't turn out right. I'm now officially an Okie now however I was born in Monahans TX. They let me visit home once in a while but won't let me stay too long.
Frank




