Comprise drawings, all with O.T.5. prefix: /1 1071: R.A.F. Air speed indicator, Mark IVA; /2 1323: De Havilland No. 4, control diagram; /3/1-2 1329 & 1329A: Aneroid altimeter, Mark VB; /4 1330: R.A.F. compass, Mark II; /5 1370: Wireless transmitter; /6 1402: Air compass, type 5/17; /7 1403: Ogilvie pressure head; /8 1404: pressure head, Mark IVA; /9/1-2 1444 & 1445: R.F.C. camera, type L. Technical diagrams
Comprise: /1 O.T.5. A.52: Beardmore carburetter; /2 O.T.5. 79: Tampier blocktube carburetter; /3 O.T.5. 1528: Air pump, Hispano-Suiza; /4 O.T.5. 1525: Hispano-Suiza, W.4.A.*, thrust & propeller mounting /5 O.T.5 1494: Claudel Hobson dual carburetter. R.A.F.3A /6 O.T.5. 1487: Oiling system Beardmore 160HP Technical diagrams
