Our cover picture this week shows the engines of one of the latest French Arc-en-Ciel (Rainbow) aeroplanes built by Couzinet. It is a low-wing monoplane with three Gnome-Rhone engines. The wing span is nearly 100 feet and the aeroplane is able to carry 2,420 gallons of petrol.
FIVE RADIO AERIALS ARE USED on this Douglas DC-2 air liner of Swissair. The loop aerial, the top part of which is visible above the pilot’s cabin, is used for direction finding and homing radio. A fixed aerial runs backwards from the mast next to the loop aerial. This fixed aerial is used for communication when the air liner is on the ground or near the ground. During normal flight a trailing aerial is lowered through the tube underneath the fuselage. The weight on the end of the aerial is visible at the bottom of the tube. The remaining two aerials are used for the Lorenz system of radio-assisted blind approach. One consists of the two short horizontal tubes placed below the fuselage near the trailing aerial tube; the other is a short vertical rod arranged up the side of the mast which supports the fixed aerial.
This plate previously appeared as the cover to Part 8.