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Published online by Cambridge University Press: 28 July 2016
Valuable lives and thousands of pounds worth of equipment are lost in collisions each year.
The graphs of civil aviation traffic show that an accident in May of 1922 was followed in June by a drop in the average monthly passenger traffic of 325 passengers. A more serious accident in May, 1923, was followed by a drop in traffic during May and June of 750 passengers.
There is thus every incentive to minimise the risk of collision as far as possible, if only from an economical standpoint, as apart from the humanitarian.
Under the existing regulations there is danger of collision not only from all points of the compass in a horizontal plane—and, even at sea, with rules based on a thousand years’ experience, collisions are all too frequent—but from every conceivable direction of which the pilot is the unfortunate centre.
Rule of the Air No. 29 is perhaps the best exposition of the present state of affairs in air navigation.
1 Proc. R.U.S.I., Vol. LXXI., No. 482, para 147.
2 i.e., not necessarily the bearing of the aircraft's course over the ground.
3 See para. 4.
4 K.R. and A.C.I., para. 654 (b).
5 Note.—This is not optional, but consequential on the Rule.
6 This is not optional, but consequential on Rule (1).
7 See Appendix “D.”
8 See Appendix “D.”