Winged Victory (oz5317)

About this Plan

Winged Victory (Precision Contest Model). Free flight sport model. Original design, as published in MAN Sept 1937.

Quote: "Traced by Bill Thompson, 5-68."

Direct submission to Outerzone.

Update 03/05/2020: Added article (in 2 parts) thanks to GTHunter.

Quote: "A Precision Contest Gas Job. How You Can Construct a Small Realistic Gas Model That Has a Comparatively Slow Speed But High Consistent Performance. By Elbert J Weathers. Part No 1.

AS GENERALLY acknowledged, the Precision-Type Gas Model Contest is fast becoming standard, with purely durational meets now practically a thing of the past. Any conscientious builder, upon entering this more scientific type of competition, is immediately impressed with the new phases of judging his model, with engineering, construction and workmanship sharing with points awarded through actual flight of the plane. The writer is pleased, therefore, to offer the gas model enthusiast this ship, of original design, which will ably meet every requirement for this type of contest. The generally used point system in the precision contest is as follows:

A. Engineering (20 points-Maximum)
1. Design
2. Construction
3. Workmanship

B. Take Off (20 points-Maximum)
1. Take off
2. Duration
3. Approximate distance
4. Altitude

C. Flight (25 points-Maximum)
1. Stability
2. Performance

D. Landing (35 points-Maximum)
1. Approach
2. Attitude as to landing position relative to restricted landing area of field

Total possible points: 100

It should now be quite evident to any builder, heretofore unaccustomed to the precision meet, that the many 'breaks' usually obtained by the favored few in strictly durational meets are cut to a minimum. Another phase of duration contests, that of the stubborn element of gas jobs flying out of sight and becoming lost, is entirely eliminated. The most important feature is the way in which this kind of competition literally 'forces' design and workmanship advancement out of gas model builders, a fine feature which durational meets cannot generally claim.

Most precision meets allow two official flights, each being the usual limit of 45 seconds, or less, of the engine operation. As will be noted, this ship is equipped with a very efficient flight timer for this purpose.

Before going further, the writer would like to take this opportunity of expressing his complete satisfaction as a result of employing the XG aerofoil in this design, developed by Mr Charles H Grant and previously proven so successfully on the famous KG gas job. This has primarily kept the speed down to a conservative rate for this size model and engine power (5 ft wing span - 1/6 hp engine.) It also offers a steep angle of climb which is most important in flying this model in the precision - type contest, provided it stays over the field through proper circling adjustment. The glide is also benefited to a great extent by this wing section. Other design factors advocated by Mr Grant have been incorporated in this design, all contributing greatly to the flight ability of the plane.

This gas model uses the Bunch Engine, although similar engines of 1/6 to 1/5 hp can be used, provided the motor mounting plates and cowling holes are re-styled slightly. The wheels used on the original are Ohlsson Streamlines, but any of similar diameter (3-1/2 inch) will be satisfactory. Take ample time to build all units as construction and final finish are important factors.

One last word before the actual beginning of the construction. In installing all metal fittings used in the ship, that is, where each is to be cemented to balsa, use only metallic cement such as is on the market, but which can be easily prepared by any model builder. The writer employs it in connection with all metal fittings in all of his gas jobs, and the great strength resulting through its use makes its preparation very worthwhile. It is generally believed that a metallic cement is the result of painstaking chemical research. Possibly some of that on the market is, but anyone mixing aluminum powder (not too fine) with a good grade of model cement to correct consistency has a metallic cement equal in strength to any fancy preparations offered in stores at a fraction of the cost. Of course, use the customary clear cement in all balsa-to-balsa joints.

Fuselage and Landing Gear To begin construction of the fuselage, first lay out the fuselage frame (side and top views) on paper, full size, enlarging from the assembly drawing (Plate 1) through use of the scale. Be sure to retain the long gradual curve in the rear section of the fuselage frame. When the frame has been drawn to actual size, select some 1/4 in sq hard balsa for the four longerons..."

Supplementary file notes

Article.

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