OllyM

Hi, This is perfectly normal. When within range of the ILS signal you will see the tuned frequency replaced with the ILS identifier, in this case ISW. If you press the NAV 1 (or 2 if you tune the frequency into both Nav radios) speaker button on the radio panel you will hear the identifier in morse. Rgds, Olly Mylius

Got HIGHMEMFIX=1 in your fsx.cfg? Rgds, Olly Mylius

From my ATPL theory exams I recall it's around 35degC. Quoting from my notes: As well as being designed to withstand the pressure differential and changes of temperature at altitude they must be able to withstand impact from birds. Specifically regulations state that flight deck windshields must be able to withstand impact created by a 4lb bird at design cruise speed at sea level, or impact from the same bird at 8,000ft at 85% of Vc, whichever is the more critical. They are manufactured from layers of glass, vinyl and polyester materials, and bonded together to form a single laminate, where the outer layer is chemically hardened to increase resistance to abrasion from hail and dust. They are heated, not only for de-icing purposes but to prevent the material becoming brittle and to retain flexibility in the event of birdstrike. In the event of flight with window heat inoperative, the MEL will likely impose a restriction on the cruise speed. Off the top of my head I cannot remember whether the heating mats are AC or DC fed, but I can tell you on good authority the windshield on large transport aircraft is often several inches thick. Bearing in mind you hear stories in the industry of geese being hit at high speed, and the carcasses have been known to smash through the radome, through the forward pressure bulkhead and take off the first officer's legs on it's transit through the aircraft, it makes you grateful for the window heat. Hope you found this interesting. Rgds, Olly Mylius