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Aviation History
1934
1934 - 1090.PDF
FLIGHT. OCTOBER 18, 1934. ANTIQUITY : Erbil, near the Great Zab River and some 60 miles E.S.E, of Mosul, is reputed to be the — oldest inhabited city in the world. pointed out that at the finish, the aeroplanes will not aJight on Flemington Racecourse, Melbourne, but will pro- ceed to other aerodromes in the district, mostly to Point Cook. Although it is obviously impossible to state with any degree of accuracy how long the England-Australia speed race will take, it is possible to make a rough estimate. The total distance from Mildenhall to Melbourne along the Great -Circle courses is about 11,300 miles. If, therefore, an aeroplane is capable of averaging 200 m.p.h., it will cover that distance in 56J flying hours. Time must, how- ever, be allowed for stops at the five controls. It may, perhaps, be assumed that these stops will average one hour each, in which case the whole course would be com- pleted in a total of 6i£ hours. The table below shows flying times at speeds between 140 and 240 m.p.h. For the purpose of estimating the flying time between the different controls, we give also tables of flying times and speeds between the controls, from which the flying time of any machine the speed of which is known can easily be estimated. It may be instructive to attempt to follow a competitor doing 200 m.p.h. from start to finish, and to examine the times at which he may be expected at the various controls. Assuming the start to be made from Mildenhall at 6.30 a.m. G.M.T., the aeroplane would reach Baghdad, 2,530 miles away, in 12 hours 40 minutes, approximately. This would be 7.10 p.m. G.M.T. As Baghdad is 3 hours ahead of Greenwich Mean Time, it would be 10.10 p.m. local time when the machine landed. Allowing one hour for refuelling, inspection, etc., a start would be made again at 8.10 p.m. G.M.T. (u.io p.m. local time) and in the FLYING Mildenhall to (2,530 mi AverageSpeed mph 140 .. 150. .- 170 ,*• ;,.• • 180 >;• ' . 200 .; . 2*0 .. •••'""•"., 230 .-, 230...... •':. 240 .;- . TIMES Baghdad es). ActualFlying Time. Hours. . . 18.06 ,. 16.86 --... 15.61 -..*-•-. 14.88 .. 14.05 <.. 13.31 .. 12.64 .. 12.04 ..." 11.50 "... " 11.00 .... 10.53 Baghdad to Allahabad (2,300 mi 140 .. 150 .. 160 .. 170 ..180 .. 190 .. 200 .. 210 .. 220.. 230 240 .. es) .. 16.43 .. 15.33 .. 14.38 .. 13.53 .. 12.77 .. 12.10 .. 11.50 .. 10.95 .. 10.45 .. IOJOO 9.58 AT VARIOUS SPEEDS IN ENGLAND-AUSTRALIA RACE Allahabad 1 (2.210 AverageSpeed. m.p.h. 140 .. 150 .. 160 .. 170 .. 180 .. 190 .. ••: 200 .. -- 210 .. 220 .. •-.- 230 .. t.. ,, .-* ,"t .v- 240 v. Singapore (2,084 140 .. 150 .. 160 .. 170 ..180 .. 190 .. 200 .. 210 .. 220 .. 230 .. 240 .. to Singapore miles). ActualFlying Time. Hours. .. 15.78 .. 14.73 13.81 „ 13.00 .. 12.26 . ••--•-(.V 11.63 .-V 11.05 ••'•' '".I. 10.51 .. 10.04 9.61 ••:".. 9.2i to Darwin miles). .. 14.90 .. 13.90 .. 13.03 .. 12.26.. 11.58 .. 10.97 .. 10.42 9.93 9.48 -.. .. 9.07 &69 Darwin to Charleville (139 miles). Average Speed. m.p.h. 140 .. ••''.. 150 ..• 160 .. 170 .. 180 .. 190 .. 200 .. 210 .. 220 .. -.:... 230 .. .-. 240 .. Charleville 787 140 .. • ... 150 ... -•"'.. 160 .. 170 •..• - :• 180 .. ••.;, 190 .. 200 .. 210 .. 220 .. 230 .. — .-. 240 .. ActualFlying Time. Hours. 9.92 •••'"•.. 9.26 8.68 8.17 ,... 7.72 7.32 6.94 6.62 6.32 6.04 5.79 to Melbourne miles). 5.62 • 5.24 4.92 4.634.37 4.14 3.94 ! 'i-3.75 3.58 •u. tQv42 3^8 Mildenhall to Melbourne (11,300 miles). Average ActualSpeed. m.p.h. 140 150 160 170 180 190 200 210 220 230 240 250 To be the are Flying Time.Hours. 80.7 75.3 70.6 66.5 62.8 59.5 56.5 53.8 .„ • .. 51.3 . . '•;.•. .. 49.2 . •' '.. • .. 47.1 . - '.*_ - .- 45.2 these flying times must idded the time spent at .»„ controls, of which there .;: five. Time thus spent counts as flying time, the winner of the speed race being the competitor who •- covers the distance in theSfe shortest lapsed time.
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