Photographs presented demonstrate application of D.8 caterpillar tractors, powered by 113-hp Diesel engine; use of these tractors has so revolutionized speed and cost of airport construction that sites are now selected for their strategic value irrespective of apparent difficulties of terrain.
Aerodrome levelling
Flight
Flight ; 40 , n 1711
1941
Article (Journal)
English
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Engineering Index Backfile | 1937
|Engineering Index Backfile | 1936