The Lockheed Air Express was the second aircraft design created by the Lockheed Aircraft Company after its founding in 1927; the type first flew in April 1928. The Air Express was based around the original fuselage of the Vega, but in order to meet the requirements of Western Air Express, the wing was raised to a parasol configuration above the fuselage and the cockpit was moved behind the wing, while a more powerful Pratt & Whitney Wasp engine was fitted to ease operations over the Sierra Nevada mountains. The design was a commercial success for the company although only seven were built between 1928 and 1931.
Lockheed 3 Air Express
Single-engined passenger and mail transport aircraft, seating between four to six passengers in an enclosed cabin, able to carry up to 1,000-lb (454-kg) of mail, powered by a 410-hp (306-kW) Pratt & Whitney Wasp radial piston engine; seven built.
Air Express Special
One-off version built for a non-stop trans-Altantic flight in 1931; one built.