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- From: stand@austin.ibm.com (Stan Douglas)
- Newsgroups: rec.models.rc
- Subject: Re: Twist in the Wing
- Message-ID: <C1FG4u.28uG@austin.ibm.com>
- Date: 25 Jan 93 20:41:17 GMT
- Article-I.D.: austin.C1FG4u.28uG
- References: <johnsonc.727908007@spot.Colorado.EDU>
- Sender: stand@austin.ibm.com ()
- Organization: IBM Austin
- Lines: 40
- Originator: stand@stand.austin.ibm.com
-
-
- I usually use ammonia and water to remove warps. This works MUCH better than
- water. Simply saturate the balsa with this solutionand clamp the wing in the
- position you want it to assume. The ammonia does something to the cells of
- the balsa and causes it to be more flexable. After it dries the water and
- ammonia are gone and the balsa resumes it's original property. I read this
- originally in one of the mags. Maybe one of you chemical oriented guys can
- expand on why this works.
-
- I also used to steam balsa to bend it around difficult bends. What I do for
- that is use a long piece of rubber tube, like for automobile vacuum lines, and
- plug it into the wife's pressure cooker top. Where the jiggle thing goes. You
- get great quantities of live steam in this way, so be careful.
-
- As far as a warped wing goes. Don't cover it until you have the wing perfect.
- Ie, both sides should be exactly the same. If you cover it and take the warp
- by tensioning the covering, you're asking for nothing but problems and the warp
- will come back forcing you to work with it before every flying session. I have
- never seen a poorly built wing fly well. The whole difference between a great
- flying model and one that's all over the sky is in building it true (and light).
-
- I even go so far as to build my wings on a sheet of glass. There are numerous
- other techniques. A well built airplane will groove and fly where you point it.
- It will track through loops, inside and outside. In general a great flying
- plane will make you look better than you are in the air, at least in my case it
- does. I am currently flying 4 models. One of them is not perfect and it is a
- real bear to land as I fly it all the way into the ground. The others are much
- better and after I line up with the runway I only need to worry about the
- throttle and the elevator, not in keeping it aligned with the runway.
-
- Just an observation, but usually the guys that are master builders (you know,
- their airplanes are beautiful inside and out) have airplanes that fly as good
- as they look. I think this is because they take the care to make sure everything
- is right, including the finish. The cobbled up looking things that you wouldn't
- want in your garage, usually fly crummy too.
-
- I think there are other chemicals you can use, someone else please??
-
-
- Stan N5CKQ
-