Hip Pocket Builders' Forum

Radio Control Forum => Electrics => Topic started by: steveair2 on January 18, 2015, 10:42:42 PM



Title: '1/8A LaStick' Build
Post by: steveair2 on January 18, 2015, 10:42:42 PM
I finally decided on this winters project.  The '1/8A LaStick'.  Designed by Dave Fritzke & Gene Rock, based on a Fred Reese design.
I'll be converting it from Cox .020 power to electric. I'm trying to keep the modifications to a minimum. There will be a few.
Pictures aren't working for me now,  I'll get them up soon.


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on January 19, 2015, 06:36:20 PM
Ribs and wing structure going together. First modification is taking out the dihedral.


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on January 20, 2015, 09:03:47 PM
Getting a bit more done.


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on January 22, 2015, 08:50:30 PM
Second modification, I changed the leading edge from 1/8th square to 3/16 x 1/4.


Title: Re: '1/8A LaStick' Build
Post by: PlaneFoolish on January 22, 2015, 09:50:17 PM
What do you use for a flat surface?  It appears you get very strong pin retention.  Thanks


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on January 22, 2015, 10:19:34 PM
Hi Plane,  thanks for checking out my build.  This particular building board is made from a piece of 3/4" white pine shelving that I checked for flatness with my aluminum yard stick.  Then I glued a piece of 1/2" drywall to it.  Drywall is my preferred building surface.  It works great.


Title: Re: '1/8A LaStick' Build
Post by: PlaneFoolish on January 23, 2015, 08:44:16 AM
Thanks.  I'll give it a try.


Title: Re: '1/8A LaStick' Build
Post by: carpetbagger on January 23, 2015, 12:54:51 PM
Taking notes on your mods since the 1/8A LaStick is on my list.


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on January 24, 2015, 10:59:44 AM
Thanks Carpet,  this is the smallest R/C model I have ever built.  I've built rubber free flight larger than this one.
I was looking for something quick, easy and economical.  My model building time and budget is limited.  If it fly's well
I may use it for a base for an original design I have bouncing around in my head.


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on January 25, 2015, 02:10:01 AM
Third modification, added center section vertical webbing on the rear of the spar.
Fourth modification, added leading edge blocking for leading edge wing screw.
Fifth modification, lengthened each wing tip 5/8th of an inch to increase the wing span 1 1/4 inches.

I'm also showing how I use masking tape to protect the ribs while sanding the leading and trailing edges to shape.


Title: Re: '1/8A LaStick' Build
Post by: dputt7 on January 25, 2015, 03:27:00 AM
    Hi Steve, that's a great idea with the masking tape, It looks like you are using a "grit stick" ( my Name for it) to sand it with, I have one that I bought many years ago and would love to get a couple more, any chance you know where they are available.
                                                                                                                             regards Dave


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on January 25, 2015, 09:23:36 AM
Thanks Dave.  Try this link http://www.permagrit.com/dealers.php?osCsid=1fmrcuvbprv5pg6pv3eblto7o7


Title: Re: '1/8A LaStick' Build
Post by: PlaneFoolish on January 25, 2015, 10:27:51 AM
I am a relatively new builder, even though "long of tooth" and you are giving me some nice tips and tricks in this build.  Thanks for pics and keep them coming.


Title: Re: '1/8A LaStick' Build
Post by: dputt7 on January 25, 2015, 06:52:59 PM
  Thanks Steve, Ive just ordered some to replace my old one, the spar slotters look handy. Kudos


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on January 25, 2015, 09:38:14 PM
Much thanks guys for your input, interest and compliments.  I need to remember to try to include tips and tricks on my build threads.  I'm no master modeler by any means, but I have been building models for a little over forty years.

I thought I would be further along than I am today.  I did detail wood work to the center section and wing tips, I also made and hinged the ailerons.
In the picture you can see I cut one CA type hinge into three smaller hinges. I cut the corners at a forty five degree angle to make them easy to insert.
Also, tip for the day;  dollar store fingernail files make great sanding tools for small models.

I increased the chord of the ailerons from 5/8th inch to 13/16th of an inch.  At this point I'm going to stop counting the modifications I do to this design.
At the beginning of this thread I said I would keep the modifications to a minimum.  I think I'm the type of guy that starts out folding a paper airplane, and ends up
trying to build a 747.  IT"S FUN! 


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on January 25, 2015, 09:49:19 PM
I got ahead of myself.  Pictures for today.  The hinging tools shown were not used on this model.  I guess they work well for larger models, but I used my eye and a number eleven exacto knife for these hinges.  It worked better for me.


Title: Re: '1/8A LaStick' Build
Post by: PlaneFoolish on January 26, 2015, 12:01:16 PM
I also use the building aid pictured in the pint glass  ;D.  When I'm thinking of what to tackle next, it comes in handy.


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on January 26, 2015, 07:52:15 PM
Beer and Balsa!  They go hand in hand!


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on February 01, 2015, 02:01:22 AM
working on aileron linkages.  I'm using printer paper and Titebond glue to reinforce the center section and aileron linkage areas.
.


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on February 17, 2015, 10:00:03 PM
This is my second model to use Solar Film Lite.  I really like this stuff. It really likes to stick to itself and takes getting used too. 
I like the low heat and it conforms to small radius well.  I went ahead and covered the wing before starting the fuselage.
My thinking is to break up the tedious covering so I'm not covering the whole model at one time.


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on February 22, 2015, 01:18:57 AM
Fuselage going together.


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on February 26, 2015, 10:16:16 PM
More progress on fuselage.  Modifications made are........

Moved firewall forward 1/2" to account for shorter electric motor.
Moved bulkhead at trailing edge of wing aft 5/16" to account for increased wing chord.
Moved tail post aft 1 1/2" to account for slight increase in stabilizer area.
Added triangle stock to account for, I like rounded corners.
Converted from nose dragger to tail dragger.

Funny thing,  the other day I stopped at Hobby Lobby to see if their limited balsa supply included triangle stock.
I was happy to find that they had the 3/8" stock that I was looking for.
Yesterday I tried to cut a piece to fit, only to find that there was no right angle on the stock!
I've never seen triangle stock that was not a right angle.  I'm saving it in case I build a model with triangular bulkheads!
I had to make the drive across town to Hobby Town to get the right stock.
Good hobby shops are getting rare.  SAD!


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on March 01, 2015, 02:02:31 AM
Sheeted and rough shaped the fuselage, and built stabilizers.  Both stabilizers were enlarged slightly and changed from solid 1/16" sheet to framed up 1/8" sticks.
Came up with a neat way to make a round vertical stabilizer.  It came out very strong. I'll cover it as shown in the picture with no added structure.


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on March 08, 2015, 01:23:33 AM
Hinged and covered stabilizers.  I really like the Solarfilm Lite covering!


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on April 12, 2015, 05:21:37 PM
I wish I had more time to build models!  Installed servo rails, push rod tubes and tail wheel.  Mocked up landing gear from 1/16" welding rod.
Installed motor.


Title: Re: '1/8A LaStick' Build
Post by: Dave Andreski on April 12, 2015, 06:37:11 PM
Steve,
Nice job all around, especially the covering.
Dave


Title: Re: '1/8A LaStick' Build
Post by: steveair2 on April 18, 2015, 10:35:37 PM
Thanks Dave!  Today I covered the fuselage and installed the empennage.  My wife and I were not fortunate enough to have children, but I do have a four year old nephew!   Last night I decided to build him his first model airplane.  It's the Dual Purpose H.L. Glider designed by Harry Johnson and published in the August 1943 Model Airplane News.  I wish I had a Uncle like me.  Wait!  I DO!  That's a whole nother story with lots of full scale flying!  Thanks Uncle G!