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The British agreed but demanded that the prototype be ready in less than 4 months with flights 6 weeks later. North American duly obliged and the aircraft first flew in October 1940.
Immediately the new aircraft outperformed the Curtiss design, which used the same Allison engine but had an advanced “laminar flow” wing and low-drag, under-belly cooling system.
The British ordered a number of the aircraft, which were pressed into service with 26 Squadron in January 1942 for reconnaissance and ground attack roles, under Army Co-operation Command rather than fighter command. This was due to the restricted high altitude performance afforded by the Allison engine with its single-stage, single-speed supercharger.
However, Rolls Royce test pilot Ronald Harker saw the potential in the aircraft and suggested a trial using the latest variant of the British designed Rolls Royce Merlin engine with two-stage, two-speed supercharger.
The results were spectacular, the potential of the design was finally realised and a legend was born. With constant updates, including the addition of the British-developed bubble canopy, the design evolved into what many consider to be the definitive Mustang – the P-51D.
The all- round visibility, range and speed of later Mustangs proved to be vital to provide fighter escort to the US bombing campaigns later in the war, as well as successfully engaging the early German jet fighters.
Along with its allied counterpart the Spitfire, many consider the Mustang to be the finest piston-engined aircraft of World War Two. The Mustang continued in service until as late as the 1980’s in some territories.
Overall, 15,000 Mustangs were built, with more than half of that total being the P-51D.
This kit is designed for you to build a traditionally constructed, rubber powered, free flight model of a P-51D Mustang factory serial number 44-13557 as delivered to 355th fighter group based at Steeple Morden, England circa July 1944.
The kit includes the materials (other than paints) to complete the suggested authentic scheme. This is a simple but striking scheme, but you can decide to do your own favourite or more complicated scheme if you wish.
There are plenty to choose from – USAAF Mustangs were often brightly painted and highly individual to the pilot.
This is a simple striking scheme, but you can decide to do your own favourite or more complicated scheme if you wish.
Construction of the model from this kit uses the traditional method of ‘stick and tissue’, that consists of a built up balsa wood skeleton (framework), covered with a tissue skin. The balsa frameworks are built over a plan that is printed at the exact scale of the model, which is in essence a real engineering drawing.
Power is provided by rubber strip motor that is wound up before flight. Free flight means just that – once the model is launched, it is on its own. It must follow a predetermined flight path established when the model is initially adjusted for flight or ‘trimmed’. This type of traditional building technique and flying requires a degree of patience and skill, but is extremely rewarding.
Typically for a small model and in the spirit of the traditional kits, profiles are simplified and adjusted from the original and a relatively large propeller is used. This is done so that the model is light and stable enough to fly on its own, is simple in construction and can work with the rubber motor. These adjustments have been done with care and sensitivity so that the shape and spirit of the original aircraft is preserved as much as possible.
Also in the spirit of the traditional kits, additional items required to build the model are things that can be found in the kitchen drawer or are easily available on the high street.
Three balsa sheets with precise laser cut parts and strip wood. • PVA glue for building the wooden frames.
One 150mm diameter plastic propeller.
One pre-bent motor hook and shaft.
A vacuum formed canopy and spinner
Three low friction plastic ‘nose’ bushings– one for the propeller and two for the undercarriage wheels.
Piano wire for the main undercarriage and tail wheel.
Three cocktail sticks or toothpicks, one for the motor peg, the other two for the exhaust stubs
Rubber motor strip.
Tissue to cover the model.
Parts reference sheets (W), full size summary plan sheets (X), scheme diagram sheet (Y) at the back of this booklet and scheme markings (Z) printed on lightweight paper.