Spitfire was popular as it was one of the first Airfix did. Also did the Gladiator. Remember doing a Gannet - sod. Putting the fin strakes on was bloody hard, a tight fit and sharp as a razor; cut myself getting them on.
At least I knew it had two engines and contra rotating props whereas as the Shack had only one engine and contra rotators per pod unlike one senior officer who suggested extending the Shack range by shutting down the 'spare' engines just like the Gannet.