Hobbyboss Vought F4U-1 Corsair. 1:48

[Shar2]

Chance Vought F4U-1 Corsair
Hobbyboss 1:48

In February 1938 the U.S. Navy Bureau of Aeronautics published two requests for proposal for twin-engined and single-engined fighters. For the single-engined fighter the Navy requested the maximum obtainable speed, and a stalling speed not higher than 70 mph (110 km/h). A range of 1,000 miles (1,600 km) was specified. The fighter had to carry four guns, or three with increased ammunition. Provision had to be made for anti-aircraft bombs to be carried in the wing. These small bombs would, according to thinking in the 1930s, be dropped on enemy aircraft formations.

In June 1938, the U.S. Navy signed a contract with Vought for a prototype bearing the factory designation V-166B, the XF4U-1, BuNo 1443. The Corsair design team was headed up by Rex Beisel. After mock-up inspection in February 1939, construction of the XF4U-1 powered by an XR-2800-4 prototype of the Pratt & Whitney Double Wasp twin-row, 18-cylinder radial engine, rated at 1,805 hp (1,346 kW) went ahead quickly, as the very first airframe ever designed from the start to have a Double Wasp engine fitted for flight. When the prototype was completed it had the biggest and most powerful engine, largest propeller and probably the largest wing on any naval fighter to date. The first flight of the XF4U-1 was made on 29 May 1940, with Lyman A. Bullard, Jr. at the controls. The maiden flight proceeded normally until a hurried landing was made when the elevator trim tabs failed because of flutter.

Production F4U-1s featured several major modifications compared with the XF4U-1. A change of armament to six wing-mounted .50 in (12.7 mm) M2 Browning machine guns (three in each outer wing panel) and their ammunition (400 rounds for the inner pair, 375 rounds for the outer) meant that the location of the wing fuel tanks had to be changed. In order to keep the fuel tank close to the center of gravity, the only available position was in the forward fuselage, ahead of the cockpit. Accordingly, as a 237 gal (897 l) self-sealing fuel tank replaced the fuselage mounted armament, the cockpit had to be moved back by 32 in (810 mm) and the fuselage lengthened. In addition, 150 lb of armour plate was installed, along with a 1.5 in (38 mm) bullet-proof windscreen which was set internally, behind the curved Plexiglas windscreen. The canopy could be jettisoned in an emergency, and half-elliptical planform transparent panels, much like those of certain models of the Curtiss P-40, were inset into the sides of the fuselage's turtledeck structure behind the pilot's headrest, providing the pilot with a limited rear view over his shoulders. A rectangular Plexiglas panel was inset into the lower center section to allow the pilot to see directly beneath the aircraft and assist with deck landings. The engine used was the more powerful R-2800-8 (B series) Double Wasp which produced 2,000 hp (1,491 kW). On the wings the flaps were changed to a NACA slotted type and the ailerons were increased in span to increase the roll rate, with a consequent reduction in flap span. IFF transponder equipment was fitted in the rear fuselage. These changes increased the Corsair's weight by several hundred pounds. The performance of the Corsair was impressive. The F4U-1 was considerably faster than the Grumman F6F Hellcat and only 13 mph (21 km/h) slower than the Republic P-47 Thunderbolt; all three were powered by the R-2800. But while the P-47 achieved its highest speed at 30,020 feet (9,150 m) with the help of an intercooled turbocharger, the F4U-1 reached its maximum speed at 19,900 ft (6,100 m), and used a mechanically supercharged engine.

The Model
Continuing their release schedule with the different variants of F4U Corsairs, Hobbyboss have now released the F4U-1. The top opening box has a nice artistic impression of the aircraft in flight whilst inside there are seven sprues of medium grey styrene, two separately moulded parts, one sprue of clear styrene and a decal sheet. All the parts are very nicely moulded with fine panel lines and rivet detail throughout. There’s no sign of flash or other imperfections and only a few moulding pips, but what there are, are on some of the finer parts, so care will need to be taken when removing them and cleaning up. Fortunately the wing problems that have plagued the previous release are actually correct for this version.

As with most of their aircraft kits, should go together fairly easily. It’s not a complicated build, but there are areas that have quite a bit of detail, particularly the engine, where the parts are quite fragile and fiddly. Naturally as with most aircraft builds, construction begins with the cockpit, and the fitting of the two side consoles and two piece seat assembly to the rear bulkhead. The rudder pedals are glued to the front bulkhead, to which the instrument panel bulkhead is attached, followed by the instrument panel for which a decal is provided, even though the IP has dimples where the instruments are mounted, a good panel to use those Airscale instruments and bezels you’ve promised to use one day. The joystick complete with control wires glued through the instrument panel bulkhead and into the front bulkhead. As per the real aircraft, there isn’t a cockpit floor, so side consoles, now attached to the rear bulkhead are then glued to the instrument panel bulkhead forming the cockpit “tub”.

The engine is a model on its own, with the two cylinder banks moulded as single items which are then joined together and fitted with the single piece inlet manifold complete with the myriad of pipes. The exhausts are next and care should be taken to get the right parts in the right place as it’s crucial to get them exhausting out of the right places. The two piece crank case is fitted with the two magnetos and with the propshaft pushed through it from behind, glued to the front of the engine along with the pushrod ring. The accessory gear box is made up form three parts and glued to the rear of the engine.

The wings are designed such that the modeller has a choice of whether to pose them folded or spread. The choice is pretty much made with the assembly of the wing centre section which includes the lower fuselage and gull wing sections. The two radiator baths are glued to the single piece bottom wing section along with the folding point ribs, before the two upper wing sections are attached. The leading radiator intakes are then fitted with their grilles before being glued onto the wing. The fold points are detailed with three piece fold mechanisms and two piece spars. When posing the wings extended you won’t need to add the mechanisms and you use the straight spar part instead to the bent part. Unfortunately the flaps, although separate have been moulded in such a way that they cannot be posed drooped, although I’m sure with a bit of modelling it can be done should you wish. On the centreline there is a large cooling vent fitted, with the accelerator sling hooks fitted on either side, and the clear panel to the rear.

The seven piece tailwheel/hook assembly is now built up and along with the tail hook has the option of being built extended or lowered, do ensure that the correct parts are used for the option you wish to build. The tailwheel, cockpit, and engine assemblies are now fitted to one half of the fuselage, along with the cockpit sidewalls and tailwheel bay structure, which is made up from five parts. The fuselage is then closed up and the centre wing assembly glued into position, as is the engine cowl flap section and cowling. Just behind the cockpit, on either side, two panels are attached, whilst in the cockpit the two part gun sight is fitted. The horizontal tailplanes are each single piece parts, to which the elevators and control rods are fitted.

Unlike the previous releases, this kit comes with open machine gun bays, but with the three 50 cals with separate ejector guides and with their associated belt trays, with separate belts included. All the gun bay doors are also separate, and look like they could be a bit awkward to fit in the closed position even though there are nice ledges for them to sit.

The outer wings can now be fitted to the inner wings and in whatever position you have chosen. The main undercarriage assemblies are now built up. Each assembly consists of the main oleo, scissor link, retraction actuator legs front mounted door and two piece wheels. The completed undercarriage assemblies are then fitted into their respective bays along with the main and tailwheel bay doors. The single piece three bladed propeller, propeller hub, windscreen, canopy, two aerial masts and spine mounted anti-collision light are attached.

Decals
There two aircraft options provided on the decal sheet which are well printed, in register and with good opacity. Along with the national markings and individual codes, there are a small selection of stencils for one aircraft, as well as the yellow tips for the propeller blades, for those modellers who don’t like to paint this area. The two aircraft options are 17-F-6 and 17-F-25, both in a two tone Blue Grey over Light Gull Grey scheme, at least that’s what’s on the colour callouts.

Conclusion
Well, what can I say here that I haven’t already said in the review? It’s a great looking model, which will probably be a nice quick and fairly pain free build. It’s nice to see Hobbyboss adding the armament to this version; perhaps they do read reviews and comments? Highly recommended.

Review sample courtesy of

[Antoine]

It looks like the F4U-2 radome is already present?

Not too sure about the flames damper.