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Fly around in terragen 37/22/2023 ![]() In reality the flat ground ahead proceeded for only about 6 miles before it intercepted the low ice cliff which marked the commencement of the icy slope leading upwards to the mountain, and at that point the uniform white surface of the mountain slope proceeded upwards, first at an angle of 13°, and then with a gradually increasing upward angle as it merged with the ceiling of the cloud overhead. What the crew could see, therefore, was what appeared to be the distant stretch of flat white ground representing the flat long corridor of McMurdo Sound. ![]() In the far distance the flat white terrain would either have appeared to have reached the horizon many miles away or, more probably, merged imperceptibly with the overhead cloud thus producing no horizon at all. Similarly, the roof of the solid overcast extended forward for miles. What this air crew saw ahead of them as the aircraft levelled out at 3000 feet and then later at 1500 feet was a long vista of flat snow-covered terrain, extending ahead for miles. The line of vision from the flight deck towards the horizon (if there is one) will actually portray a white even expanse which is uniformly level. So long as the view ahead from the flight deck of an aircraft flying over snow under a solid overcast does not exhibit any rock, or tree, or other landmark which can offer a guide as to sloping or uneven ground, then the snow-covered terrain ahead of the aircraft will invariably appear to be flat. Very extensive evidence was received by the Commission as to the occurrence and the consequences of this weather phenomenon. The co-existence of these factors produced without doubt the classic 'whiteout' phenomenon which occurs from time to time in polar regions, or in any terrain totally covered by snow. The position of the sun at the time of impact was directly behind the aircraft, being in a position approximately to the true north of the mountain and shining at an inclination of 34°. The DC10 was at the time flying under a total cloud cover which extended forward until it met the mountain-side at an altitude of somewhere between 20 feet. I have already made it clear that the aircraft struck the lower slopes of Mt. Richardson, Duncan Wallace McMullin, and Sir Edward Somers The latest version directly reflects this description Judgments of the Court of Appeal of New Zealand on Proceedings to Review Aspects of the Report of the Royal Commission of Inquiry into the Mount Erebus Aircraft Disaster, by Sir Owen Woodhouse, R. Used photos from for research material on ZK-NZP and Air New Zealand livery terrain made with Terragen final editing done with GIMP I also used these images to get an idea of what Erebus looks like in various conditions: A clear day, light clouds, from the summit among others available at the USAP's photolibrary. Cette PNG image matricielle a été créée avec Inkscape.
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