IMPERIAL AIRWAYS EUROPE, AFRICA, ASIA, AUSTRALIA This overhead picture of an H.P.42 "Heracles", shows the popularity of the aircraft and the service. Whilst the passengers queue up to board the aircraft, luggage is being loaded by the stewards, and the car at the rear of the aircraft looks like one of the special blue air mail collection vehicles delivering the latest batch of mail. Note the co-pilot on the ground talking up to the pilot in the cockpit probably communicating as to how the loading is going on, and commencing ground checks via a walk around.