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General control line discussion => Open Forum => Topic started by: EddyR on September 20, 2015, 03:30:58 PM

Title: 2" mistake
Post by: EddyR on September 20, 2015, 03:30:58 PM
 I just finished my Bearcat and did not make any major mistakes on it. The Rabe Bearcat that I built a few years ago I made some huge mistakes that added a lot of weight. About a year ago I started a Jamison from plans. It is a very easy model to build. I lost interest several times but finally covered it with silk a month ago. Two ribs collapsed and I repaired it but did a poor job and hated it. Last week I removed the silk and today I was going to cover it in paper.  I cut the paper and on outboard  wing panel the paper was to short? I measured the wing and I had built the outboard wing 2" to long. If It had been the inboard wing I would have lived with it. I cut off the extra panel and attached the wing tip and now it has the correct wingspan 50". That is a first for me. It has been hard to stay interested in any model for a long time as age and other interest has taken over. I will cover it tomorrow and get the thing done finally.
 Tell us about your big mistakes.
Ed
Title: Re: 2" mistake
Post by: Target on September 20, 2015, 03:34:28 PM
I was told on my first ever build that the wing tip weight box actually goes on the BOTTOM of the wing, not the TOP like I did it.
Ooops.
Now I know. ::)

R,
Chris
Title: Re: 2" mistake
Post by: john e. holliday on September 20, 2015, 04:06:41 PM
Like wood working and construction work you learn to cover up or work around the mistakes. 
Title: Re: 2" mistake
Post by: Glenn (Gravitywell) Reach on September 20, 2015, 04:59:52 PM
I built a Veco Squaw years ago from plans.  It was my very first plans built plane.  Yeah....the outboard wing was 2" longer than the inboard and I also had to take the wing apart cause it was upside down. HB~>
Title: Re: 2" mistake
Post by: phil c on September 20, 2015, 07:10:54 PM
Most of my mistakes have been gluing the motor mount on with the motor on the left(unintentionally).  Much less of a problem now with metal mounts.  I still do it but it's easy to unbolt the mount and flip it over.
Title: Re: 2" mistake
Post by: Randy Cuberly on September 20, 2015, 08:23:59 PM
A few years back...very late one night I very carefully jigged up my KA10 that was under construction to install the stab with 3/4 of a degree of positive incidence.  after working hard and getting it exactly as I wanted it in all planes, I patted myself on the back and went to bed.  The next day, wide awake, I went to the shop to admire my handiwork and instantly realized that the airplane was, of course, jigged upside down so my positive incidence was very negative...It really is hard to cut one of those dam things out without destroying the entire fuselage.  I probably invented some new words that morning...at least my wife said she could hear me all the way in the house but couldn't really tell what I was yelling!! 

Randy Cuberly
Title: Re: 2" mistake
Post by: Dane Martin on September 20, 2015, 08:55:58 PM
When i was building my triplane, i read the plans wrong, or built the center wing over the plans upside down. The bell crank was supposed to be outboard and the push rod exits the bottom. Well it ended up inboard, exits top and attaches to the elevator on top! I didn't even realize what i had done until looking at the pics after flying it. I thought, wow, that push rod looks weird.
Title: Re: 2" mistake
Post by: Will Davis on September 21, 2015, 02:58:46 AM
A couple years ago , right before the KOI , I needed a new tank for the skydancer, bent up the metal, shaped end caps , fixed vents and pickup, went to put in the plane and it was built upside down,vents on wrong side ,  hope I never do that again
Title: Re: 2" mistake
Post by: John Park on September 21, 2015, 07:12:09 AM
My scrap-box still contains a left wing for a free-flight rubber model, laminated tip and everything - a nice job, some of my best work.  Problem?  I'd already built the left wing, and this one should have been its mirror image...

Regards
John
Title: Re: 2" mistake
Post by: john ohnimus on September 21, 2015, 07:47:58 AM
Let's see....

 Just had finished gluing the wing halves together on my Prowler, and my buddy Bill Knigge say's "Hey man I didn't know you flew clockwise"... ARGH!!!!
Title: Re: 2" mistake
Post by: badbill on September 21, 2015, 08:48:07 AM
Plenty of control line models are designed to have one wing panel longer than the other. You sure it wasn't designed that way?
Title: Re: 2" mistake
Post by: John Park on September 21, 2015, 09:20:32 AM
Plenty of control line models are designed to have one wing panel longer than the other. You sure it wasn't designed that way?
If it was, the outboard wing ought to be the inboard wing, so it's still a mistake...
Title: Re: 2" mistake
Post by: Ward Van Duzer on September 21, 2015, 10:37:18 AM
Many years ago an old New England carpenter once made this admonishion to me, (You need to add the NE accent here!)...

Measure twice, cut once!


Ward-O
Title: Re: 2" mistake
Post by: Warren Wagner on September 21, 2015, 06:16:18 PM
Eddy,

Wow....look at what you started.   You have lots of company.  :-)

Warren Wagner
Title: Re: 2" mistake
Post by: Gene Martine on September 27, 2015, 08:21:11 AM
Ed.
Give me a call, 904-891-9482.
Gene