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Wee-38 Lightning Article & Plans
December 1959 American Modeler

December 1959 American Modeler

December 1959 American Modeler Cover Table of Contents

These pages from vintage modeling magazines like Flying Aces, Air Trails, American Modeler, American Aircraft Modeler, Young Men, Flying Models, Model Airplane News, R/C Modeler, captured the era. All copyrights acknowledged.

I have always indented to build a multi-engine model of some sort, but never have gotten around to it. With the plethora of ready-to-fly (RTF) and almost RTF (ARF) models on the market today at very reasonable prices, there is no real good excuse for not doing it; so I'll have to stick with my bad excuses. But I digress. This simple twin "Wee-38" Lightning uses a pair of Cox .020 or .049 engines and solid balsa components. You could electrify the model with equivalent power. P-38s make one of the nicer looking profile scale subjects because of the twin tail booms and short fuselage.


By Harry E. Harps

Now even us poor folks can afford to fly a twin-engine control line plane and talk about piloting pleasure...!

There's something about the appearance--at a flying circle-of a twin-engined, U/Control plane that will draw the attention of the most jaded enthusiast. Perhaps the crowd gathers to watch the technique used to get and keep both motors going, or maybe they congregate to absorb the music of two engines snarling in unison. Whatever the reason - attraction and appeal are certainly there.

Wee-38 Lightning Underbelly, Dec 1959 AM - Airplanes and RocketsSooner or later every fan of this round-about sport has an urge to try his hand with a dual motored ukie. A profile model satisfies the need for an easily constructed plane that is strong enough to withstand hard landings. Given a careful application of sandpaper, filler and dope finish, details and proper insignia, a good looking, scale-like appearance will result.

Power available determines size, which brings up the next problem. What power should be used? A pair of oh-forty-nines is a logical choice, since their output would equal that obtained from a single motor in the .074 to .09 range. Yet, the Cox .020 Pee Wee is intriguing and a power-packed gem. There seems to be quite a few in circulation. Who hasn't bought one just for kicks? Best of all, their small backplate simplifies the mounting arrangement. Out of this cogitation came the tiny P-38 Lightning.

First just a word about flight before we wade into construction. Flight handling characteristics do not differ from those of an ordinary ┬ŻA ukie. Line pull is certainly as great with the twenty-eight foot, nylon lines, and breezy days call for more cautious flying as usual.

Building data on full size plans.


All sizes are in "inches" and material is "balsa" unless otherwise noted. One 1/32 x 2 x 3  for landing gear caver doors; (1) 1/16 x 3 x 8 for fins and stabilizer; (1) 1/16 x 5/8 x 2 1/4 plywood for landing gear reinforcement patches; (1) 1/8 x 7/8 x 2  1/4 plywood for firewalls; (1) 3/16 x3 x 36  for wing, fuselage and tall booms.

1/16 music wire for landing gear; .020 music wire for tall skids; .015 music wire for leadouts; 1/32 music wire for pushrod; (2) 1" sponge wheels, (1) 3/4" sponge wheel for landing gear; (8) 3/8" long 2-56 bolts for mounting motors; (2) 1" long 3-48 prop mounting bolts; (2) 1" prop spinners; (2) 3/8 oz. capacity fuel tanks; (2) 4.4" D by 2.5" P props.

Misc: small bellcrank; alum. tubing; solder lugs; cloth hinges; gauze; filler; clear and colored dope; fuel proofer; Pee Wee motors; lines; fuel and accessories.

Wee-38 Lightning Plans, December 1959 AM - Airplanes and Rockets

Wee-38 Lightning Plans

<click for larger version>


The AMA Plans Service offers a full-size version of many of the plans show here at a very reasonable cost. They will scale the plans any size for you. It is always best to buy printed plans because my scanner versions often have distortions that can cause parts to fit poorly. Purchasing plans also help to support the operation of the Academy of Model Aeronautics - the #1 advocate for model aviation throughout the world. If the AMA no longer has this plan on file, I will be glad to send you my higher resolution version.

Try my Scale Calculator for Model Airplane Plans.



Posted August 7, 2011

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