Why did the Royal Navy prefer the Supermarine proposal to the Gloster carrier aircraft?
Short answerThe Gloster airframe was considered too fragile for repeated flight-deck landings.
NotesBetter engines would not solve the Gloster proposal's main problem as a carrier aircraft. The airframe was not expected to withstand the repeated shocks of flight-deck landings. That durability concern helps explain why the Fleet Air Arm preferred to pursue the competing Supermarine design. Carrier suitability depended on structural resilience as well as speed and engine performance.