"1/2 A" & "1/8 A" airplanes These are the small ones...more popular now than ever.

Building and flying the LST 1/2A Trainer

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Old 06-13-2012, 12:56 PM
  #851
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Default RE: 1/2A trainer anyone?

Ok I have a start...
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Old 06-14-2012, 04:46 PM
  #852
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Default RE: 1/2A trainer anyone?

Ok.. so this being my first build, where is the best place to get the balsa wood.. I was thinking of Balsa Usa
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Old 06-14-2012, 05:05 PM
  #853
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Default RE: 1/2A trainer anyone?

Wish you luck in your build. Not really any response to mine, but I will watch. Easy build. Good luck.
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Old 06-14-2012, 05:57 PM
  #854
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Default RE: 1/2A trainer anyone?

My preference is Lone Star Balsa, but others may have their favorites.
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Old 06-14-2012, 06:08 PM
  #855
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Default RE: 1/2A trainer anyone?

Have you tried the LHS (Local Hobby Store)? I use mine all the time for balsa. Prices are good and the more we support them, the better they do and stock more of the things we need. Just my 2 cents
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Old 06-15-2012, 04:33 AM
  #856
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Default RE: 1/2A trainer anyone?

hllywdb I will try my LHS once I find one.. I have done some research and did not find one as of yet... Maybe Greensboro NC but I am not sure..
However I thought I would like to order I bulk order for this project so I have it all at once. I will always support the LHS as much as I can..
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Old 06-15-2012, 04:35 AM
  #857
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Default RE: 1/2A trainer anyone?

New22,
I learned on 3 channels way back when, so I think building a wing w/o ailerons will be fine.. you can always build a second wing later.
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Old 06-15-2012, 04:49 AM
  #858
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Default RE: 1/2A trainer anyone?

Another trick that has been used for years is to build it with ailerons and lock the linkage at first.
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Old 06-15-2012, 04:52 AM
  #859
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Default RE: 1/2A trainer anyone?

true, I was just thinking he said he had one wing built already...
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Old 06-15-2012, 04:54 AM
  #860
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Default RE: 1/2A trainer anyone?

so I have to start from scratch,, I no longer have any of my building tools or anything. It has been at least 15 years since I have built anything so of to the store this weekend for some building supplies.. any suggestions on must haves for the workshop?
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Old 07-11-2012, 06:38 PM
  #861
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Default RE: 1/2A trainer anyone?



like yr idea!

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Old 08-24-2012, 05:41 AM
  #862
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Default RE: Building and flying the LST 1/2A Trainer

You couldn't have chosen a better design for a trainer. I like your plans, very good. Will it hurt your feelings if I use them?
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Old 12-08-2012, 03:51 PM
  #863
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Default RE: Building and flying the LST 1/2A Trainer

The plans show the wing as one continuous construction, but if you build it that way, how do you put in the dihedral?
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Old 12-08-2012, 06:59 PM
  #864
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Default RE: Building and flying the LST 1/2A Trainer


Quote:
ORIGINAL: jcz

The plans show the wing as one continuous construction, but if you build it that way, how do you put in the dihedral?
It's not. You can build it as two panels or as one and cut it two. The dihedral braces for ailerons and without ailerons are given in the parts list. The braces are placed between the main spar as opposed to laminated to the sides of the spars.
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Old 03-27-2013, 11:47 AM
  #865
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Default RE: Building and flying the LST 1/2A Trainer

I guess it is my turn,

I have all of the wood, and as soon as I finish up the framework on the two Q-tee's I have going on, There will be two of these on the building board. Should be able to start this weekend.[>:]
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Old 03-27-2013, 12:44 PM
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Default RE: Building and flying the LST 1/2A Trainer

Ok.. great MrGoodwreck. I will be following as this is on my short list.
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Old 04-21-2013, 08:18 AM
  #867
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Default RE: Building and flying the LST 1/2A Trainer

I'm still here watching too, Mr. Goodwreck.  
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Old 05-14-2013, 08:51 AM
  #868
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Default RE: Building and flying the LST 1/2A Trainer

Can someone please tell me what the definition is for "1/2A & 1/8A" Airplane?
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Old 05-14-2013, 09:30 AM
  #869
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Default RE: Building and flying the LST 1/2A Trainer

Technically speaking, 1/2A is motors that are .050 in size. (Maybe shortened from "Half a cubic inch) The rule was stretched a bit to include the .051 Cox for people who wanted to use the same plane in multiple events. This would make the .020 motors "1/4A". This is technically speaking.

The forum is a bit different. We generally include .061 motors (1 CC) as we are supposed to be adopting the metric system and in the spirit of enhancing East-West relations. From there it starts to get fuzzy. After you crash and rebuild a plane 5.4 times (3.2 if you use epoxy) you need to bolt in a .074 to get it flying. So we include those as well. Additionally, if you crash over 10 times, or mistakenly cut your ribs out of plywood, you might need to move to an .09 to get it airborne. Hey, if you crashed the same plane 10 times and still haven't quit, you came to the right place. Then there are a couple of people that feel that a Sig Hummer or GLH with a TD .09 makes for some relaxed afternoon flying. And since CP usually posts a lot of good advice and hints, it would be just wrong to exclude him. Plus a lot of us know it's just a matter of time before he bolts a Nelson 40 onto a GLH and most of us are looking forward to the video.

Hope this clears things up.
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Old 05-14-2013, 07:38 PM
  #870
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Default RE: Building and flying the LST 1/2A Trainer

Quote:
ORIGINAL: PSB Can someone please tell me what the definition is for ''1/2A & 1/8A'' Airplane?
Used to be that 1/2-A referred to engines .050 or smaller as a general class. Larger up to I forget what, .15? was the "A" class. AFAIK, the Cox .051 Tee Dee was created so modelers could compete in the "A" class competition for free flight with a half-A sized motor.

Then there were those who subdivided the half-A's into: 1/4-A for the .020's, .024's, etc. 1/8-A would be the .010, such as the Cox Tee Dee, I think there was a British diesel of that size, too.

A, B, C, etc. engine size classifications have been dropped for a long time, at least for sport modelers. Anyway, I'm sure there are others who can give info with a lot more detail.
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Old 01-24-2014, 06:55 PM
  #871
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hello everyone havent been on here in a while. its been several years since i build a airplane. but i got that erge again. i would like to build this one first somthing simple. is there a dfx file for the wing. i havent been able to find one. between 2004 to around 2007 i build several of bibe flyers planes. allways looked up to him as the man. loved his planes
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Old 01-25-2014, 09:54 AM
  #872
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Quote:
Originally Posted by jdwardus View Post
is there a dfx file for the wing. i havent been able to find one.
Attached is a tiled PDF of the plane. In the first post of this thread, Bipe has also posted links to ZIP files that contain all the drawings you'll need for the build.
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Old 01-25-2014, 06:25 PM
  #873
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theres dxf file for the fusealage is there not for the wing
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Old 10-19-2014, 06:27 AM
  #874
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Thanks Bipe for making this
I'm interested
Being the largest and most complicated part a easy to build on a flat board (maybe leading edge shimmed for semi) wing is essential.
In the instructions please mention the two commonly over looked things that make for success or failure: leveling of the stabilizer with the wings and balancing the wings, if you do those even a pretty imperfectly built plane will fly well, fuselage may be crocked a bit in really bad case but it will fly .
I just bought a crashed Sig Kadet jr at flea market if that tells you how much I like them ?
Now to get my old OK cubs in shape to fly.
Fly with the Bear OK cub

Jay
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Old 04-18-2015, 09:19 PM
  #875
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It's been over a decade since I posted the plans (I can't believe it's been that long), so I figured I might as well build one of these myself. Actually, I'm building it with my 9 year old son so he can learn to fly.

As some of you may know, I prefer sheeted foam wings, but I figured I would show him how to do a built up wing for his first plane.

First evening building...

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