Vultee Vanguard (oz10612)


Vultee Vanguard (oz10612) by Frank Reinhold 1941 - plan thumbnail

About this Plan

Vultee Vanguard. Scale model for control line. Scale is 1/12.

Quote: "Pilot This Vanguard, by Frank Reinhold.

Flying scale models like the author's Vanguard can be made to dive, zoom, and even loop, all in response to the pilot's manipulation of the elevator wires.

THE Vultee Vanguard presented this month, adapted for 'control-line flying,' is a one-inch-to-the-foot scale replica of the type now doing yeoman duty across the puddle. The original model had the total weight of twelve ounces, and was powered with the new Super Atom engine, but any Class A or B engine may be satisfactorily used. Oddly enough, the engine displace-ment for control-line flying does not alter the flying qualities of the model to any great degree, the only noticeable effect being an increase in speed.

Construction. The fuselage of our Vultee Vanguard is carved from soft solid balsa because this type of construction not only results in an ex-tremely strong, durable, and easily repairable unit, but requires much less time than the bulkhead-type construction. First obtain two blocks of very soft balsa each measuring 25 in long, 6 in deep and 2-1/4 in wide. Trace the side view on each block and cut out with a coping saw. Cement both halves lightly together and shape the outside with the aid of the cross-section fuselage contours. After the outline is fully shaped and sandpapered, cut away the glue joints and hollow out each half with a gouge or similar instrument. After hollowing out each section to correspond with the wall thickness shown in the fuselage cross sections, both halves should be permanently cemented together and allowed to dry.

The control mechanism we employ is very similar to that used by Jim Walker on his U-control Fireball (oz5746) model. The control plate is cut from 1/16 in sheet aluminum and mounted on a 1/16 in piano-wire pivot point which in turn is securely anchored to the main (center) wing spar. To smoothen the movement of the control plate, two 'slide rails' on which the control plate rests are cut from hard 1/4 in sheet balsa and cemented in position where shown. After the 1/8 in diameter elevator control rod is attached to the arm of the control wire control lines. Thus, when the front wire is pulled the control-plate arm moves forward, causing the ele-vators to move down. When the rear wire is pulled, the movement is opposite and the elevators move up.

To control the angular movement of the elevators, a wood screw or pin is inserted in the main slide rail to limit the movement of the control plate. To set the elevators for the 'testing' and 'maneuver' positions, as indicated on the drawings, the trial-and-error method is used. Thus, if you want the testing elevator position, you set the elevators at the correct angle and insert a wood screw or pin in the main 'slide rail' which prevents the control plate from moving any farther...

Editor's Note - Constructional details of the U-control type of control used in this Vultee Vanguard are intended for the individual builder only. Commercial use of this control system is patented by the American Junior Aircraft Co. Both 'Pilot This Vanguard!' and 'Lightning on a Leash' were prepared with the co-operation and permission of American Junior and Victor Stanzel & Co, who patented G-Line flying."

Quote: "Mary & Steve, This is Frank Reinhold's Vanguard from October, 1941 Air Trails magazine. It is significant as a pioneer controlline model, from back in the very early days of the sport, when patent conflicts with Walker and Stanzel were an issue. These scans were retrieved from the October 1941 Air Trails scan you posted, then massaged by a few hours editing. Dave"

Raw plan and article scans thanks to Mary at

Direct submission to Outerzone.

Supplementary file notes



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Vultee Vanguard (oz10612) by Frank Reinhold 1941 - model pic

  • (oz10612)
    Vultee Vanguard
    by Frank Reinhold
    from Air Trails
    October 1941 
    36in span
    Scale IC C/L LowWing Military Fighter
    clean :)
    all formers complete :)
    got article :)
  • Submitted: 10/11/2018
    Filesize: 451KB
    Format: • PDFbitmap
    Credit*: DPlumpe
    Downloads: 452

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Vultee Vanguard (oz10612) by Frank Reinhold 1941 - pic 003.jpg
Vultee Vanguard (oz10612) by Frank Reinhold 1941 - pic 004.jpg
Vultee Vanguard (oz10612) by Frank Reinhold 1941 - pic 005.jpg
Vultee Vanguard (oz10612) by Frank Reinhold 1941 - pic 006.jpg
Vultee Vanguard (oz10612) by Frank Reinhold 1941 - pic 007.jpg

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* Credit field

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