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Summary of Types

The Chaser or Pursuit Type

De Havilland. V. Single Seat "Chaser" or "Speed Scout" with a Single Rigidly Mounted Machine Gun on Top of Hood (To Left). It will Be Noted That the Top Wing is Staggered Back Instead of Forward as in the Usual Type, Thus Allowing the Pilot to Look Directly Up and in Front of the Top Wing. Dimensions Are in Millimeters.

Great climbing ability means a large power reserve, hence the weight carried per horsepower is reduced to from 8 to 12 pounds on the fastest machines, against the 16 to 18 pounds carried on the larger and slower reconnaissance types. Strength must be sacrificed to meet these conditions, so that instead of having a safety factor of from 8 to 12 as in the larger machines, it is cut to about 5.5, or in other words, the strength is relatively only half that of the usual type of aeroplane. This great reduction in strength calls for careful handling, especially in landing, and also painstaking care in the design and choice of materials.