David, G8UOD began by looking at European history prior to WWll. With the aspect of war looming, Britain began the necessary steps to have materials and systems in place.
A central exchange was built to serve as a communications hub known as Q Central. The complex was built at Leighton Buzzard and was the biggest telephone exchange in the world from 1939 to 1945, handling all telephone and teleprinter communications for the war in Britain, Europe, North Africa, and the Far East. David told of how the exchange was connected to it’s many out stations. The complex remained secret until declassified in 2008 and after 2013 the site was cleared and sold for housing.
During the 2016 RSGB Convention, John Worsnop, G4BAO gave this talk. He began by outlining ‘Myths and Magic’ of 23cms. He covered what you are likely to work and in comparison to 2M, what’s the same and what’s different. He then went on to explain some system engineering and what matters and why. He finished by listing organizations and equipment suppliers for the constructor.
This was a story of a group of Austin Seven owners driving their cars to visit Kirchberg in Austria. Paul, G1GSN had volunteered to provide backup in his Land Rover. Not all the cars managed to make the entire trip, but those who did enjoyed their visit which included a stop at Friedrichshafen on Lake Constance and a visit to theZeppelin Museum. Paul played a DVD of the visit showing the cars and their maintenance during the 2017 trip.
The evening started with CW practice. Two senders were in progress, one for learners and the other for the more advanced.
Don, G4LOO then showed a DVD from the British Vintage Wireless Society explaining the state of the nation’s electricity service in about 1996. It was interesting to see how many people worked in the distribution, maintenance, fault finding and Electricity Board’s showroom.
The second film told of the complete process of manufacturing an LP from original recordings to the vinyl pressings. A process far more complicated than first imagined.
The turnout for last evening’s junk sale was quite good, only four short of last year’s attendance. We were pleased to welcome visitors from the Stevenage club. Four other nearby clubs were also invited, but none took up the invitation. Many of the items on sale were of good quality, so the evening was a success.
Our visiting speaker this week was Barry Thomlinson who told the history of the Royal Aircraft Establishment Bedford which was established in 1950 after the UK government decided in 1944 that new national aeronautical research facilities were required. Bedford was chosen as the most appropriate site for reasons including the availability of electrical power to drive the new wind tunnels, easy access to supersonic flying areas, and the existence of a skilled work force.
Five world-class wind tunnels were built, on the Twinwoods site just outside Bedford, to enable tests at low speeds and also at high Mach numbers. Bedford’s Thurleigh airfield, a former USAAF bomber base, was also re-built with a new main runway and other specialised research facilities, including naval catapults. From 1952, when the first wind tunnel starting running, to 2001, when the government re-organised defence aeronautical research, RAE Bedford was at the forefront of research in many fields, including operating jet aircraft from carriers, automatic landing in fog, the flying behaviour of vertical take off and landing aircraft, and the best configuration for the Concorde supersonic transport. To many working in the field, RAE Bedford was known as a centre of world wide aeronautical excellence.
(text from the Bedford Aeronautical Heritage Group’s website http://www.bahg.org.uk)
The RAE “house” magazine was published monthly from March 1948 to the final (bi-monthly) issue of September/October 1991, when RAE ceased to exist, having transitioned to the Defence Research Agency. BAHG holds a complete set of RAE News in its archive. http://bahg.org.uk
On his third visit to the club, Former Air Vice Marshall Alan Merriman started by looking back to 1977 when it was felt that a more modern aircraft was needed to replace current models. Aware of the twenty years needed to bring a new aircraft on line, a plan was introduced to make use of the latest developments in composite construction, digital electronics and improved avionics. Cooperation with the various European agencies proved problematic at times, but several models were proposed and mocked up. The first flight of the Euro Fighter was in 1994 and the first Typhoon was delivered to the UK in 2006. The aircraft has since met or exceeded planned specifications.