Winston Churchill and 5 other officers on horseback at the Salisbury Plain in 1910 for the Grand Manoeuvres. 'ELLO Winston Churchill and 5 other officers on horseback at the Salisbury Plain in 1910 for the Grand Manoeuvres. Previous: Horsa Airspeed Glider drawing – The Horsa Glider was designed by Airspeed and to carry a load of about three tons such as a jeep and a light artillery piece or trailer, or a platoon of twenty-eight infantrymen. The Horsa was towed by a heavy bomber or a Dakota transport plane. Next: Harold Lambourn Personal Items