![]() ![]() ![]() Takahashi FSQ 106 FL 530mm f/5 + Moonlight Nightcrawler focuser.I therefore signed up for one year’s imaging with the following set-up: DSW were one of the early remote hosting observatories established and have a good reputation, reasonable prices and a wide choice of quality equipment. Thus having since taken steps towards this goal, which included learning PixInsight, I felt the time was right to sign-up with Deep Sky West (DSW) situated in the state of New Mexico, USA. ![]() However, after some research I concluded that whilst such a facility would be great to have it was probably too expensive for now and moreover, I first needed to spend more time improving my processing techniques before embarking on such a plan. There were three solutions to the situation: continue waiting, give up all together or look further afield where the skies are reliably clear and dark, which like many others nowadays is what I did and thus joined the ever increasing band of remote imagers.Ībout 2-years ago I considered establishing equipment at one of the growing number of astrophotography host sites in southern Europe. With continuously bad weather prevailing across Europe back in February, it was more than four months since I’d been able to undertake any astrophotography here at Fairvale Observatory – of course such problems go with the hobby but this was ridiculous and somewhat disheartening. However, this year’s an exception as I have a large backlog of image processing to complete courtesy of the Photon Factory. The engine is in service in 8 different air forces, powering the whole Mirage 2000 family of airplanes, including the latest Mirage 2000-9 multirole fighters.About this time of the year as astronomical darkness is lost for a few months I tend to take it easy, astronomically speaking. Modules are changed “on condition” by monitoring deteriorating trends in performance and mechanical measurements, such as exhaust gas temperature and oil samples, and by visually assessing blade clearances and high temperature distress on internal parts using borescopes. Modular construction allows sub-assemblies or modules to be changed without the need for full power testing of the engine after replacement. The engine has a modular construction, first introduced on the Napier Eland turboprop and then later in a big way with the Pratt & Whitney JT9D engine. The fan and HP compressor on the same shaft gave an engine with no restrictions on throttle movements, known as 'carefree handling', during flight. The engine was designed to have better performance than the latest Atar engines but simpler and less costly than the SNECMA TF 306 turbofan. Flight testing started in July 1973 using a Caravelle flying test-bed and the engine first went supersonic in a Mirage F.1 test bed at the end of 1974. It was originally called the Super Atar 9K50 and was designed for sustained flight at Mach 2.5. It is a single shaft turbofan, or continuous bleed/bypass turbojet. The first 3 stages were enlarged to give an LP and HP section on the same shaft. The engine was derived from the Atar series by adding a bypass duct aft of the 3rd compressor stage. The engine is in service with different air forces, including the latest Mirage 2000-9 multirole fighters. The SNECMA M53 is an afterburning turbofan engine developed for the Dassault Mirage 2000 fighter by Snecma. ![]()
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