"About three months ago a wealthy Swiss--a M. Chauvasse--who had made a pile in the United States, offered a prize to the value in British money of £25,000 to be given to the first airman to circumnavigate the globe, either in a lighter or a heavier than air machine. The prize is open to all comers, and already a Yankee and a German have announced their intention of competing."
"A Hun!" exclaimed Kenyon. "I thought that Fritz, under the terms of the armistice, had to surrender all his aircraft."
"But he hasn’t," remarked Fosterdyke, drily. "Nor is he likely to; and if the Allies haven’t the means to enforce the terms, that’s not my affair. If a Hun does compete, let him. That’s my view. Providing he doesn’t resort to any of his dirty tricks, there’s no valid reason why the door should be banged in his face. Because he’s down and out is no reason why we should continue to sit on him. Commercially, I regard German goods as a means to reduce the present extortionate prices of things in England. I’m no believer in dumping, I never was; but if our manufacturers cannot compete with the products of a country beaten in war and torn by internal troubles, then there’s something wrong somewhere. But I am digressing.
"Briefly, the terms of the contest are as follows: any type of machine or engine can be employed, and as many descents as are necessary to replenish fuel and stores. A start can be made from any place chosen by the competitor, but the machine must finish at the same spot within twenty days. Again, any route can be chosen, so that full advantage can be taken of existing air stations, but--and this is a vital point--in order to fairly circumnavigate the globe, competitors must pass within one degree of a position immediately opposite the starting-point. Do you follow me?"
"What is known in navigation as Great Circle Sailing," replied Bramsdean. "If a start is made somewhere on the 50th parallel North, the halfway time will be somewhere 50 degrees South, with a difference of 180 degrees of longitude."
"That’s it," agreed Sir Reginald. "Now the difficulty arises where to find two suitable places answering to these conditions. With the exception of a small part of Cornwall the whole of Great Britain lies north of latitude 50.... Therefore, to reach the 50th parallel in the Southern Hemisphere would mean making a position far south’ard of New Zealand--where, I take it, there are no facilities for landing and taking in petrol.