000009231 001__ 9231
000009231 005__ 20220628160529.0
000009231 037__ $$aGENERAL
000009231 245__ $$aPractical Helicopter Design
000009231 269__ $$a1975
000009231 520__ $$aPractical Helicopter Design.
December 1975.
COMMANDER M. F. SIMPSON, C.ENG., M.I.MECH.E., M.R.AE.S., R.N.
000009231 773__ $$tJournal of Naval Engineering$$j22$$k3
000009231 8564_ $$9fc0dc7e0-99ee-4a46-a0da-9da2bc04fd13$$s2482408$$uhttps://library.imarest.org/record/9231/files/v22b3p04a.pdf