Plan file details
Haltonian. Lightweight towline glider model.
Quote: "A Lightweight Glider Suitable For Beginners. Haltonian, by MA King.
THE Haltonian is a small, good looking sailplane that possesses an exceptional performance for such a machine. It is very simple to build, and all the materials, including dope, can be bought for 6s, a handy feature nowadays. Two versions have been built - a lightweight model as shown here, and an FAI machine with 1/16 in sheet fuselage and wing and tail LE. The performance is little altered, but the former is more suitable for beginners. Automatic rudder control has been fitted, but is not necessary, something that does not apply to the dethermaliser.
The average flight in fair conditions has been 3 min 10 sec off 328 ft lines. As a slope soarer this model shows particularly well, many flights of over 2 min have been logged with a best of 3 min 53 sec - surely not too bad for 34 in.
Fuselage. Taper the 1/2 x 1/8 side members at the front and cement formers 3, 4 and 5 to both. When dry cement together at the rear, chamfering down to mate well. Cement formers 6, 7 and 8 in place and then bend the nose to formers 1 and 2. The square top and bottom can be fitted now, together with the sheet that fairs the wing on to the fuselage. It may be necessary with hard wood to crack the 1/8 sq at formers 2 and 3 on top ; it is, of course, always necessary behind former 5. Sheet in back to 4 underneath, binding and cementing the tow-hooks well first. Make sure the hooks lie parallel to the fuselage as the climb on the line is very steep. The dowels should be added and weight packed between formers 2 and 3, then the cabin floor added to form a box for the weight. Add gussets, 1/8 in underfin and skid and make noseblock from laminated 1/8 in sheet..."
Haltonian, Model Aircraft, June 1952,
Direct submission to Outerzone.