Me 109 (oz5590)

 

Me 109 - plan thumbnail image

About this Plan

Me 109 - Control line scale model fighter. Arden .099 engine shown.

This plan is 1 of 3 - the P-51 Mustang (oz5591), Spitfire II (oz4646), Me109 - which all appeared together in the same article, titled 'Triple Threat', in Air Trails, Dec 1952.

Quote: "For the first time, you can build same-scale control line flying replicas of three top-notch World War II fighters; this trio will make a fascinating project for your club or contest flying.

Messerschmitt Me-109E. Contrary to popular belief, the Messerschmitt fighters were not slipshod jobs. The Me-109 was designed in accordance with Ernst Udet's theory of the ideal fighter plane. This included: high speed, light weight, no armor, self-sealing tanks and moderate fire power with good climbing and diving ability. Although the first Me-109 was inspired by the Me-108 high-performance sport plane (1937 Isle of Man Race winner), it was built by the Bavarian Airplane Works (BFW) and designated BF-113. This prototype astounded witnesses at the Zurich Air Competition by its high performance in the climb and dive division as well as in other classes.

Subsequent modifications ranged from 109A to 109D. All of these were powered by Junkers Jumo 210 engines ranging from 610 to 750 horsepower which required only the fuselage radiator (see plans) and began with a service speed of approx 280 mph. The original three machine guns were increased to four. In the fall of 1936 the Me-109E was born. A large Daimler-Benz 1150 hp fuel injection engine was installed
and the wing radiators were added to adequately cool this powerplant. Two wing cannons were added. Service speed jumped to 360 mph. Escort radius of the 'E' was 75 miles which could be increased to 150 miles with a 66-gallon jettisonable tank. This model became the fighter backbone of the German Air Force throughout World War II. Some minor modifications were made here and there such as the sporadic use of armor plate.

Piloting a racing version of the 109, Fritz Wendel in April 1939 broke world speed record with 481.4 mph.

The first item to be cut to shape is the vertical 3/16 in balsa keel. Be sure to cut out for the wing. This is followed by the bulkhead engine mounts which are securely cemented to the keel. Either upright or inverted engines, mounted in beam or bulkhead fashion, can be used. Take your choice. The mounts are followed by the balsa sheet formers which are also cemented to the keel. Cut the stabilizer and elevators to shape and sand.

Cement the elevator halves to the hardwood spar and firmly attach the commercial type control horn. Hinge the elevator assembly to the stabilizer. Cement the stabilizer securely to the keel. Be sure the control horn can move freely. Bolt the bellcrank to the hardwood mount and cement the mount to the keel. Bend the wire control rod to shape and slip the ends into the bell-crank and horn. Solder a washer to each end of the control rod.

It is advisable to install the fuel tank now. Either cylindrical or rectangular tanks can be used. Commercial tanks are recommended such as Macro. Acme, etc. Make certain that the filling and overflow lines extend beyond the fuselage covering. Also run the feed line through the bulk-head 'B' and make sure it is long enough to reach the engine without kinking.

We are now ready to plank the fuselage aft of bulkhead B. Begin by attaching the top and bottom strips to the fuselage first. Hold in place with pins until dry. Follow these with a strip on each side of the fuselage centerline..."

Direct submission to Outerzone.

Update 29/01/2016: Replaced this plan with a clearer copy, this one from Uncle Willies.

Supplementary file notes

Article 'Triple Threat' with text and pics, thanks to BillW. Also, a copy of the construction notes from Hobby Helpers plan #1252.

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Notes

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Scaling

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