Delta (Northrop Delta)

Overview

In 1935, when the RCAF wanted a high performance photographic aircraft, it considered the Northrop Gamma but instead settled on Northrop’s transport version of the same aircraft, the Northrop Delta. Canadian Vickers was commissioned to build an initial four aircraft under license and these were the first all-metal stressed-skin aircraft to be built in Canada. The Delta used the same wing as the Gamma, had split flaps and a non-retractable undercarriage like its predecessors. The larger fuselage accommodated up to eight passengers. For RCAF use, the design was modified to accept three Fairchild A-3 cameras at the rear of the cabin. The cabin floor was strengthened to accept freight loads and a large, upward opening freight door was installed on the port side. Two Deltas were armed with a defensive machine gun fitted in an open hatch in the roof. A plexiglass fairing provided protection from the slipstream. This particular installation was not very satisfactory causing buffeting and a marked decrease in performance.

Source: Canadian Combat and Support Aircraft: A Military Compendium by T.F.J. Leversedge © 2007. Translated and reproduced with permission of the author.

Technical specifications

Source: Canadian Combat and Support Aircraft: A Military Compendium by T.F.J. Leversedge © 2007. Translated and reproduced with permission of the author.