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Aviation History
1919
1919 - 0971.PDF
JULY 24, 1019 ^m and forming the roof of a streamline structure enclosing the heads and shoulders of pilot and gunner. When standing up in his cockpit the gunner can just see over the top of the top plane, where his gun is mounted. He thus has an un interrupted field of vision extending through the whole of an upper hemisphere. It will no doubt have been noticed that the gap of the Sage Type 2 appears to be greater than is called for by aerodynamical reasons. This is occasioned by the desire on the part of the designer to provide the gunner with a free field in a forward direction also. This—without some form of synchronised gear—was only possible by placing the gun so high that it would fire over the tips of the propeller. It is interesting to note that in spite of the large amounts of side area presented by this cabin the machine was, we are informed, quite easy to handle and appeared to be reasonably stable. During a trial flight the rudder post gave way, with the result that the machine became unmanageable and in Table of weights, etc., and Performances of Sage Machines Type of machine. Bomber, Type 1 Fighting Scout, Type 2 Training Machine— Type 3A Type 3B . . Training Seaplane— Type 4A Type 4B ... Type 4C Engine | Type. R.R. Gnome R.R. R.R. H.S. Sunbeam H.S. H.P. 190 100 75 75 140 200 200 Weight of machine (loaded). lbs. 5.500 1.546 • 2,064 1,980 2,662 2,709 2.875 Fuel capacity (gallons). 1 "3 **•* 1 Pu IOO 27* 26 26 48 35* 3 Si O 14 8 4 4 6 4* 4i c .ang e mile s « 54° 308 315 315 128 220 220 Speed (m.p.h. ar ound . ZO 93 112 74 76 8^.< 95-5 97-o 0 0 0 0 109.75 — — 79 85.1 . 0 0 in 104 — — — — — Climb (in mins. 0 0 0 3° 1475 — — 32 25-0 21-44 ; LO 0 0 in 5 — — — — — eilin g ac . andi n Spee d O >-i ft. |m.p.h. 16,000 9,000 9,000 12,600 14,400 15.500 52 55 39 39 45 53 45 4»» CT1 .oad/ s 1-1 lbs. 6-48 9.22 6.25 6-o 8.06 8.2 7-34 ft. oad/ h J lbs. 13-2 15-48 23-9 26.4 16-o I3-54 14.16 n)"0 3 O M lbs. ;oo 5° 64 — — R.R. = Rolls-Royce. G. = Gnome. H.S. = Hispano-Suiza. S = Sunbeam. Side and front elevations of the Sage machines. 973 G 2
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