The Boulton Paul P.29 Sidestrand was a twin-engine biplane medium bomber of the Royal Air Force. Designed for daylight operations, it was manoeuvrable and provided with three defensive gun positions. Named after a village on the Norfolk coast near Boulton & Paul's factory in Norwich, the Sidestrand first flew in 1926 and entered service in 1928. It remained in service until 1936, equipping No. 101 Squadron RAF. It was an agile and relatively fast aircraft that was capable of aerobatic manoeuvres such as loops, rolls and spins.

Sidestrand is a village and a civil parish on the coast of the English county of Norfolk. The village is 23.7 mi (38.1 km) north of Norwich, 3.3 mi (5.3 km) south east of Cromer and 138 mi (222 km) north-east of London. The nearest railway station is at North Walsham for the Bittern Line which runs between Cromer and Norwich. The nearest airport is Norwich International Airport. From the Census 2011 the population was included in the civil parish of Trimingham.