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On Sunday 29 June 2014 04:22:16 Dale wrote: |
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> Peter Humphrey wrote: |
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> > Here's the Spitfire run. Hurricane to follow. |
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> > |
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> > https://www.youtube.com/watch?v=DHuVn7R4AcY |
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> |
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> Wow. Video is good but I bet being there is much better. |
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Of course! I missed the Spitfire, so I don't know how high it flew, but the |
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Hurricane sound from no more than a couple of hundred feet or so was among the |
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two or three most impressive of my life. Both planes have V12 Rolls-Royce |
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Merlin engines (I think). As each cylinder fired, the sound pressure went up |
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extremely fast at the start of the exhaust beat, suggesting huge exhaust |
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valves, and the deep-throated roar was ... just ... beyond description. |
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The only engine to come close was an extraordinary 1/3 scale model of a nine- |
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cylinder radial aero-engine I saw years ago at a national model engineering |
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exhibition. The crankshaft was anchored to the frame, and the entire engine |
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and prop rotated around it. That's what you call air-cooling! Absolutely |
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fantastic when he fired it up once an hour or so! |
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> I live about 4 or 5 miles from a air force base here. We have mostly |
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> training type planes that fly over us but on occasion, we have something |
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> really big here. We have even had the space shuttle land there a few times. |
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> The B2 bombers have been there as well. |
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Sounds like a good place to live! That's not Edwards, is it? I drove up to the |
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gates once to see what they'd say. They were actually quite polite. |
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> I have heard some of the large planes when they start their engines and |
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> like I said, I'm several miles away and it is loud. Video just can't |
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> give you that even with a good sub-woofer. |
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Even that wouldn't help much, I think. You'd need something that can handle an |
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extremely rapid wave-front and high volumes. As you said - you had to be |
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there. |
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> Thanks for the link. |
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My pleasure. I don't know when we'll get the Hurricane one - the man with the |
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camera just put a two-word entry on Twitter this morning: "Hashtag HEADACHE" |
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-- |
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Regards |
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Peter |
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