The Airship is dead; long live the Hybrid Air Vehicle – by Martin Payne
Tuesday, October 4th, 2011 by Payne, Martin
Some of you will remember the R101 and R100. These were two airships, one sponsored and designed by the Government (R101), the other sponsored by the Government, but designed and built by private enterprise (R100). It was an initiative in1929 as part of a British government programme to develop civil airships capable of service on long-distance routes within the British Empire.
R101 was the result of a British government initiative to develop airships to provide passenger and mail transport from the UK to the most distant parts of the British Empire. The distances were too great for conventional aircraft of the period. The 1922 scheme had proposed a civil airship development programme carried out by a specially established subsidiary of Vickers with the support of the British government. This called for the building of two experimental airships: one, R101, to be designed and constructed under direction of the Air Ministry, and the other, R100 to be built by Vickers’s Airship Guarantee Company under a fixed price contract (hence the nicknames “the Socialist Airship” and the “Capitalist Airship”).
In addition to the building of the two airships, the scheme involved the establishment of the necessary infrastructure for airship operations; for example, the mooring masts used at Cardington, Ismalia, Karachi and Montreal had to be designed and built and the meteorological forecasting network extended and improved.
Specifications for the airships were drawn up by an Air Ministry committee whose members included Squadron Leader Reginald Colmore and Lieutenant-Colonel Vincent Richmond, both of whom had extensive experience with airships, principally non rigid ones. These called for airships of not less than five million cubic feet (140,000 m³) capacity and a fixed structural weight not to exceed 90 tons, giving a “disposable lift” of nearly 62 tons. With the necessary allowance of about 20 tons for the service load consisting of a crew of approximately 40, stores, and water ballast this meant a possible fuel and passenger load of 42 tons. Accommodation for 100 passengers and tankage for 57 hours’ flight was to be provided and a sustainable cruise speed of 63 mph (101 km/h) and maximum speed of 70 mph (110 km/h) was called for. In wartime, the airships would be expected to carry 200 troops, or alternatively five fighter aircraft.
Vickers’s design team was led by Barnes Wallis, who had extensive experience of rigid airship design and later became famous for the bouncing bomb. As a principal assistant (the “Chief Calculator”), Nevil Shute Norway, later well known as a novelist. Shute characterises R100 as a pragmatic and conservative design, and R101 as extravagant and over-ambitious. One purpose of having two design teams was to test different approaches, with R101 deliberately intended to extend the limits of existing technology.
Sadly, it all went terribly wrong as in 1930 on 5th October, the R101 crashed in France, Beauvais. The project was immediately halted and no further development took place.
Hybrid Air Vehicles have resurrected the technology and given it a major overhaul and have developed a most exciting new approach to transport. Hybrid Air Vehicles Ltd. is an England-based designer of air vehicles known as hybrid airships. These vehicles, such as the prototype HAV – 3, utilize both aerodynamics and lighter-than-air technology to generate lift, potentially allowing the vehicle to stay aloft for a few weeks.
To produce the design, the company has partnered with Northrop Grumman in a $500 million contract.
In August 2011, HAV signed a provisional deal with Discovery Air Innovations to sell the hybrids for use in Northern Canada. The deal, which the companies hope to have finalised by 2012, could involve up to 45 airships at $40 million per craft, with the first being delivered in 2014.
To learn more about this innovative development then click HERE
To learn more about the potential of this unique form of transport then click the HAV web site by
clicking HERE