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CMR 1/72 Spitfire Prototype
 

Czech Master Resin
1/72 Supermarine Type 300 Spitfire Prototype
First Flight at Eastleigh Airport, March 5, 1936
Kit No. 170

By Jim Schubert

History

March 5, 1936, Eastleigh Airport, Hampshire: Captain Joseph “Mutt” Summers, Chief Test Pilot for Vickers Aviation, Ltd., swung the unpainted, hand built Supermarine Type 300 fighter prototype, K5054, later to be named “Spitfire”, into the wind and took off thus placing an important marker in the history of aviation. The plane was Reginald J. Mitchell’s fourth fighter design in the then current round of competitions for the RAF’s next fighter. The Air Ministry liked what they saw in the design and wrote specification F.37/34 around it and ordered it built.

The prototype was completely hand crafted with each part made without proper tools or jigs. Production tooling would come later when the design had been proven in flight-testing. The skinning of the wings, tail and fuselage was made up of many small panels hand-beaten on sand bags, or on wooden bucks, to the correct compound curves required by Mitchell’s complex design.

On this epochal first flight of the still unpainted airplane, the landing gear, without covers, was locked down and a very low (fine) pitch propeller was fitted.

Development of the design and the tooling and jigs to build it in quantity took just over two years. The first production model Spitfire Mk. I, K9787, flew on May 14, 1938. R. J. Mitchell died of cancer well before it flew. When the last Spitfire F. Mk.24 and Seafire Mk.47 were completed a grand total of 22,759 progeny of K5054 had been built. That’s not bad coming from a hand made airplane.

The Kit

Jan Mace has, I think, wisely downplayed the kit’s instructions for “yellow/green zinc-chromate primer” finish on his rendering of K5054 for this kit’s box art. I would do the same in building this kit of the plane as it looked on its first flight. Earlier, CMR released their kit No. 123 depicting K5054 as it was after it was painted. This kit was reviewed in Internet Modeler for .

Here’s what we get in one of CMR’s neat new boxes:

21 parts delicately cast in CMR’s standard cream-colored resin,
3 parts, the landing gear struts and tailskid, cast in strong white resin,
2 vac canopies,
1 decal sheet depicting K5054 as it was on March 5, 1936 and
3 pages of well illustrated instructional material.

The wings are one-piece, tip-to-tip, with full depth wheel wells. The multiple small panels of skin are very well depicted. The engineering of the kit is quite conventional. One of my small nitpicks with this kit is that the resin feed to the leading edge of the wing largely obscures the eight gun ports, which were open but contained no guns on the first flight. Before K5054 was painted the gun ports were covered making the leading edge clean. It should also be noted that a second pitot probe was installed in the number one, that’s the farthest left, gun port on the first flight. CMR provides this probe but indication of its positioning is a bit vague. Another small nitpick is that the ribbing and fabric covering of the ailerons, elevators and rudder is rather poorly rendered.

I’ll mention one last nitpick. The trailing edges of the propeller blades should extend to the rear edge of the spinner. They do not. So far as I know, no kit manufacturer has ever accurately modeled in 1/72 the Watts two-blade wooden propeller so often used on British planes of this period. Harry Robinson’s drawing, in the Spitfire Story, of K5054 as it was on March 5, 1936 shows the shape of a Watts prop very well.

Conclusion

This is a simple kit with few parts that can be built quickly out-of-the-box into a very satisfactory model or it can become a magnum opus for a modeler seriously afflicted with AMS. My thanks to CMR for choosing to kit this historically significant subject.

And thanks also to CMR for providing the kit for this review.

References:

  • Scale Models, March 1977: The First of the Many – Spitfire prototype described and drawn by Harry Robinson.

  • Scale Models International, April 1986: Spitfire Salute by M. A. Goswell on the 50th anniversary.

  • Scale Models International, September 1990: Modelling the First of the Many by Robert Humphreys.

  • The First Flight of the Spitfire, 5th March 1936: painting by Jim Mitchell; a nephew of R. J.

  • Spitfire – The History: E. B. Morgan & E. Shacklady, Key Books, UK, 5th ed. 2000, ISBN 0-946219-48-6.

  • The Spitfire Story: Alfred Price, Jane’s, UK, 1982, ISBN 0-86720-624-1.

Note: these are the references that I used because I had access to them; there are many more.