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Aviation History
1928
1928 - 0873.PDF
11 SEPTEMBER 20, 1928 m Prairie, near Fort Saskatchewan, Alberta. m m w. w. part of the fir and red spruce, and was described as probably the most destructive infestation of the sort which has ever occurred. It was estimated that between 100 and 200 million cords of pulpwood were destroyed. It seems that in any sort of difficulty nowadays in Canada, the department concerned calls in the R.C.A.F. The most hopeful method of dealing with the pest was by dusting areas with poison dust distributed from an aeroplane. Experimental plots were chosen, and a Keystone Puffer aeroplane fitted with a hopper was sent down. Several difficulties had to be faced. The budworm feeds by boring into the buds before they have opened fully, and so is largely protected from the dust. How- ever, the tests were carried out, and useful lessons were learnt as to the method of operation. The machine flew at 95 m.p.h., and it was found that it had to keep very low above the tree tops. Quite windless weather was also necessary, or else the poison was spread too widely to be effective. The study of the effect on the caterpillars has not yet led to definite conclusions, but the method appears to promise well. Wheat dusting with sulphur to destroy stem rust was also tried in northern Manitoba, also with a Puffer aeroplane, and again good results are hoped for when the method of operation has been elaborated as a result of the experiments. Hudson's Strait Expedition (See Map on page 8) Last year, the Dominion Government, having decided to complete the Hudson's Bay Railway, despatched an expedi- tion to Hudson's Strait to make an aerial study of the ice conditions and movements. Three flying bases were estab- lished in the strait, each equipped with two Fokker Universal aeroplanes, with wheels, floats, or skis, as required. The air force officer in command was Sdn.-Ldr. T. A. Lawrence, and the Air Force personnel numbered about 20. The expedition assembled at Halifax, and on July 17, 1927, sailed for the strait in the ice-breaker " Stanley," accompanied by the freighter " Larch." A Moth seaplane was carried on the deck of the " Stanley " to assist in finding the bases which m m m m m m m Stanley Mission, Churchill River. Saskatchewan. 809
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