This set is designed to correct the nose, radiator, prop and spinner on the otherwise superb Special Hobby Tempest V. The problem with the kit nose is that the spinner baseplate diameter is too big by about 2 inches. This throws out the taper of the forward cowling. The radiator opening is also too big. This causes problems with the shape of the radiator housing. The kit spinner has some shape issues, which we have fixed with an all new spinner. The kit prop blades have also been replaced by a more accurate set. The new nose is cast in one piece for ease of installation, and the fine riveted surface detail has been replicated (no easy task!). Set also includes a prop alignment jig and full color, illustrated instructions. A real improvement to the accuracy of an otherwise great kit.