Designation list of rotorcraft only (everything else carefully weeded out).
P.62 - ?
P.63 - ?
P.72 - General-purpose helicopter (?)
P.74 - Eight-seat helicopter with tip-jets powered by two Napier Oryx gas-turbine engines. Loaded weight: 10,000 lbs. One prototype (WK998 - other sources use the military XK889 serial, so which is correct?) was built but failed to fly due to the underpowered engines. It was promptly scrapped.
P.76 - ?
P.78 - Military helicopter (?)
P.79 - Military helicopter (?)
P.86 - Design study for a 40-seat helicopter to meet general BEA requirements as a passenger transport. Reportedly to be powered by two Eland engines.
P.90 - Military helicopter (?)
P.91 - Proposed candidate for Air Ministry Specification HR 144T for a two-seat Air Observation Post and liaison helicopter for the British Army. Was to have a two-blade rotor with Saunders-Roe pulse jets. Lost to the Fairey Ultra-Light helicopter.
P.96 - Project derived from the P.74 offered to the US military. Abandoned due to lack of interest.
P.98 - Project for ASW helicopter for Air Ministry Specification HR 149 (RCN).
P.102 - ?
P.104 - See P.74
P.105 - See P.74
P.106 - See P.74/P.105
P.108 - 14-seat helicopter project. (?)
P.110 - 20-seat helicopter project with two Oryx engines. (?)
P.113 - See P.74
P.114 - ? (hypothesized to be a tandem-rotor crane/pod for Silver City Airways) - to be powered by the Rolls-Royce RB108 engine.
-- Edited by Stingray on Thursday 26th of November 2015 01:50:44 PM
Awesome list Stingy. Didn't know that the P.105 flying crane had its own designation.