Tiny Tot (oz7604)

 

Tiny Tot (oz7604) by Doug McHard from Model Aircraft 1961 - plan thumbnail

About this Plan

Tiny Tot. Tiny sports control line biplane model.

Quote: "A simple, rugged, easy to fly controlliner for 1 cc. motors.

WE have lost count of the number of times that we have been asked for an easy-to-build, original C/L sportster for 1 cc engines. Tiny Tot is our answer as not only is it sufficiently docile to be an ideal trainer, but with a good engine it will easily perform all but square manoeuvres.

To begin construnion, assemble the bellcrank to the top engine nearer and bind and cement the undercarriage to the lower bearer. Cut out the centre fuselage parts from soft in. oalsa and assemble (photo 2). Drill the engine bearers for the 6 BA engine mounting bolts and solder a piece of 16 swg wire across the bolt-heads. Now cut out the soft sheet fuselage side panels. Hollow out for the engina mounting boltheacls and U/C binding (photo 2) and cement in place. Cover the fuselage with lightweight Modelspan, doped on.

Fit the elevator push rod to the bellcrank, soldering a washer underneath to retain it - be certain that the pushrod does not bind. Leave the pushrod over long, don't bend the rear end at this stage.

Make the tailplane from 1/8 in soft balsa and sew on the elevators as shown in photo 3. Cover with lightweight Model-span and cement in place. Bend the front end of the pushrod to clear the fuselage (photos 5 and 6), then with the bellcrank and elevator set neutral, bend the rear end and solder on the retaining washer. Now fit the fin in place.

Cut out the wing ribs and slot the leading and trailing edges. The wings are best built in the hand, as in photo 4, they are then covered with heavy-weight Modelspan and given two coats of clear dope.

Cut away the tissue between the centre wing ribs and cement the wings securely to the fuselage tongues. Make certain the wings are mounted square. Cut out the ply struts and cement to the wingtips, then add the carved wingtip fairings. Don't forget the 1/2 oz weight in the outer fairing.

Colour dope the model and fuel proof it, then bolt the engine in place. Put a washer under each front bolt to give offset to the engine. A KK stunt fuel tank, fixed in place with a loop of wire and two wood-screws completes the con-struction (see photo 6).

Before flying, ensure the model balances level when supported at the point shown. Lines of between 30-40 ft should be used - the longer ones if you want to try aerobatics."

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Supplementary file notes

Article page, text and pics.

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Tiny Tot (oz7604) by Doug McHard from Model Aircraft 1961 - model pic

Datafile:
  • (oz7604)
    Tiny Tot
    by Doug McHard
    from Model Aircraft
    July 1961 
    14in span
    IC C/L Biplane
    all formers complete :)
    got article :)
  • Submitted: 05/04/2016
    Filesize: 232KB
    Format: • PDFbitmap
    Credit*: StewartHindle

Tiny Tot (oz7604) by Doug McHard from Model Aircraft 1961 - pic 003.jpg
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Tiny Tot (oz7604) by Doug McHard from Model Aircraft 1961 - pic 004.jpg
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Tiny Tot (oz7604) by Doug McHard from Model Aircraft 1961 - pic 005.jpg
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Tiny Tot (oz7604) by Doug McHard from Model Aircraft 1961 - pic 006.jpg
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User comments

I have made a Tiny Tot, and converted it to electric power [see model photo & more pics 004]. As yet it has not flown, despite an unusually large number of good flying days this month. It might get its maiden flight on 10th April. [Sorry the dates look a bit odd on this comment - the plan & photos were submitted a few days before going live. Mary]
StewartHindle - 11/04/2016
Did you get out with the Tiny Tot yesterday? Let us know how she flew!
Mary - 11/04/2016
Yes how did it fly? Also - Why is there a servo connector sticking out of the wing strut between the leadouts?
PaulW - 13/04/2016
Hello Mary, The Pink Pig (Tiny Tot) has flown. True it is only two flights of less than a circuit each, but it has been airborne. The first flight finished because of over-controlling by the pilot (me). The second flight was ended by shutting the throttle when the model came in on the lines. There is no damage to the model. One thing I found was that the weight of the battery, on the left hand side, balanced the wing tip weight. Side thrust and a rudder offset have been added ready for the next flight.
StewartHindle - 12/05/2016
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