Venty, Arthur Frederick and Eugene M. Kolesnik. Jane's Pocket Book of Airships. New York: Collier Books, 1976. . External links Airship Heritage Trust R33 Page R34 – The Record Breaker – The Airship Heritage Trust The Return Voyage of R 34 Flight 17 July 1919. Airships at Pulham 1910s British patrol aircraft Airships of the United Kingdom Hydrogen airships Rigid airships Aircraft first flown in 1919