Re: [gentoo-user] [Way OT] Tally ho!

["J. Roeleveld" <joost@antarean.org>]

On 29 June 2014 18:38:11 CEST, Dale <rdalek1967@gmail.com> wrote:
>Peter Humphrey wrote:
>> Of course! I missed the Spitfire, so I don't know how high it flew,
>but the 
>> Hurricane sound from no more than a couple of hundred feet or so was
>among the 
>> two or three most impressive of my life. Both planes have V12
>Rolls-Royce 
>> Merlin engines (I think). As each cylinder fired, the sound pressure
>went up 
>> extremely fast at the start of the exhaust beat, suggesting huge
>exhaust 
>> valves, and the deep-throated roar was ... just ... beyond
>description.
>>
>> The only engine to come close was an extraordinary 1/3 scale model of
>a nine-
>> cylinder radial aero-engine I saw years ago at a national model
>engineering 
>> exhibition. The crankshaft was anchored to the frame, and the entire
>engine 
>> and prop rotated around it. That's what you call air-cooling!
>Absolutely 
>> fantastic when he fired it up once an hour or so!
>
>Yep.  Some of those prop engines are very powerful, maybe not so
>efficient tho.  Anyway, they sure do make some noise even if the engine
>is small.  I don't think they have mufflers or if they do, it isn't
>much
>of one.  I also think they burn methanol or something too.  I'm not
>sure
>and it may even vary from one engine to another.  I don't think they
>burn plain old gas like cars. 

If you are talking about model engines. The bigger ones run normal petrol, just like cars, lawn mowers, chain saws,.....

>>> I live about 4 or 5 miles from a air force base here.  We have
>mostly
>>> training type planes that fly over us but on occasion, we have
>something
>>> really big here.  We have even had the space shuttle land there a
>few times. 
>>> The B2 bombers have been there as well.
>> Sounds like a good place to live! That's not Edwards, is it? I drove
>up to the 
>> gates once to see what they'd say. They were actually quite polite.
>
>I'm close to Columbus Air Force base in Mississippi.  It has a huge
>runway.  It is one reason the space shuttle lands here.  It takes a
>long
>runway to land and take off when carrying that thing.  I say space
>shuttle, it's mounted on the back of a 747 I think.  What's more neat
>tho is the big bombers.  My Dad several decades ago was doing a
>contract
>job at the base.  For some reason they had the really big bombers out
>there with armed military guards everywhere.   They wouldn't let anyone
>even near those things. He could see them real good tho.  He said "it
>looked like death, just plain death".  Later on my Dad found out it was
>loaded up with bombs that they were moving somewhere else.   Death was
>more accurate than he thought. 
>
>
>>
>>> I have heard some of the large planes when they start their engines
>and
>>> like I said, I'm several miles away and it is loud.  Video just
>can't
>>> give you that even with a good sub-woofer.
>> Even that wouldn't help much, I think. You'd need something that can
>handle an 
>> extremely rapid wave-front and high volumes. As you said - you had to
>be 
>> there.
>
>Yep, speakers can only do so much. 
>
>
>>
>>> Thanks for the link.
>> My pleasure. I don't know when we'll get the Hurricane one - the man
>with the 
>> camera just put a two-word entry on Twitter this morning: "Hashtag
>HEADACHE"
>>
>
>
>Oooops. 
>
>Dale
>
>:-)  :-)


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