Meeeaaaustang...
High Flying Bird
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Meeeaaaustang...
Just returned from a great display at Redhill of the P51 Big Beautiful Doll (amongst other things). I keep meaning to ask, and keep forgetting to, what is responsible producing the high-pitched whine that makes your hair stand on end (those of us have have got some)? Airspeed seemed to be a factor, but then it did it again during a low pass.
Thanks, AB
Thanks, AB
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Wotcha, AB.
I've been told it's a peculiarity of the airflow across the open gun ports on the P-51D. Can't prove it one way or the other, but it's what I've heard. My observation is that it seems to come out strongly when pulling G, whereas there is no such effect in high speed level flight, makes this sound plausible to me, as only in high G manoeuvres will you get the stagnation point shifting down the leading edge in combination with high energy air flow, making an effect like blowing across the top of a beer bottle. I'll demonstrate with a beer-bottle when I see you, if you buy teh beer..
It sounds from your post as if the low pass to which you refer must have been at low speed, in which case the AoA would again have been high, perhaps creating teh effect even at 1g
Another bit of circumstantial evidence is that I don't remember hearing it at Reno when I attended some years ago, even though I was out at the pylons where they came round at very high speeds and quite a few G. All those Mustangs had the gun ports removed, or at the very least faired off to reduce drag.
I've been told it's a peculiarity of the airflow across the open gun ports on the P-51D. Can't prove it one way or the other, but it's what I've heard. My observation is that it seems to come out strongly when pulling G, whereas there is no such effect in high speed level flight, makes this sound plausible to me, as only in high G manoeuvres will you get the stagnation point shifting down the leading edge in combination with high energy air flow, making an effect like blowing across the top of a beer bottle. I'll demonstrate with a beer-bottle when I see you, if you buy teh beer..
It sounds from your post as if the low pass to which you refer must have been at low speed, in which case the AoA would again have been high, perhaps creating teh effect even at 1g
Another bit of circumstantial evidence is that I don't remember hearing it at Reno when I attended some years ago, even though I was out at the pylons where they came round at very high speeds and quite a few G. All those Mustangs had the gun ports removed, or at the very least faired off to reduce drag.
High Flying Bird
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Yo Lowtimer,
Yes, it did seem to coincide with G...
No need to demonstrate with the beer bottle - I play flute, remember?
However, if you could do it with a pint glass I'd buy you all the beer you could drink.
If your theory is correct, I presume one could alter the pitch of the sound generated, thus being able to play tunes by flying differently tuned aircraft past. Nice.
Yes, it did seem to coincide with G...
No need to demonstrate with the beer bottle - I play flute, remember?
However, if you could do it with a pint glass I'd buy you all the beer you could drink.If your theory is correct, I presume one could alter the pitch of the sound generated, thus being able to play tunes by flying differently tuned aircraft past. Nice.
The 'beer bottle effect' was used by a chum of my late father to interesting effect in WW2. This chap used to fly Stringbags and Albacores with the Fleet Air Arm; when bored over North Africa they'd look for an Arab campsite at night, climb up a bit and then throttle back before throwing out a beer bottle or two. Allegedly it sounded like a bombing attack and the poor old Arab's animal herds would leg it to all points of the compass, hotly pursued by cursing herdsmen!
Rotten $od!
Rotten $od!
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Usually hear it as the aircraft is pulling out of a dive or into a hardish turn, so the G factor sounds authentic. Sometimes they make little "peeps" of the noise as well... Perhaps Lomcevak could comment, he flies the things!
I always understood that it was the airflow through the radiator scoop, but I can't offer any scientific evidence for its defence! No matter, it sounds great: get yourself up to Flying Legends next year, Aer Babe, you should hear six or seven Mustangs in line astern making it! Makes the old hairs on the back of me neck stand to attention!
I always understood that it was the airflow through the radiator scoop, but I can't offer any scientific evidence for its defence! No matter, it sounds great: get yourself up to Flying Legends next year, Aer Babe, you should hear six or seven Mustangs in line astern making it! Makes the old hairs on the back of me neck stand to attention!
High Flying Bird
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Sorry... I was having a bad brain day...
There is a place in Florida with a P51, but they don't advertise their prices, and haven't answered my email.
The place that's $500/hr is in California.
(And shall we have a bet as to where the hidden charges will be?)
There is a place in Florida with a P51, but they don't advertise their prices, and haven't answered my email.
The place that's $500/hr is in California.
(And shall we have a bet as to where the hidden charges will be?)
Last edited by AerBabe; 19th Aug 2003 at 02:02.
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http://www.stallion51.com/home.cfm
Kissimmee Gateway Airport (Orlando Area)
$2,750.00 per one hour fam ride.
The rest of the info is on the website.
(I'm not connected with them in any way, just helping with the info as I can telephone them less expensively than others.)
Kissimmee Gateway Airport (Orlando Area)
$2,750.00 per one hour fam ride.
The rest of the info is on the website.
(I'm not connected with them in any way, just helping with the info as I can telephone them less expensively than others.)
High Flying Bird
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And $3,500 if you want training, ie. if you're planning on buying your own.
I must get a good job...
I must get a good job...
I must get a good job...
I must get a good job...
I must get a good job...
I must get a good job...
I must get a good job...
I must get a good job...
I must get a good job...
I must get a good job...
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I always thought it was the raidator, too, but the gun ports do sound the obvious answer.
The Hunter and Meteor produce a fantastic noise through their respective gun holes. I've no 'hands on' experience of the latter, but the former could be sensed as a vibration in the cockpit at around 400kts, if I remember right, or was it 500 - it was a long time ago. However, I do remember that too fast or slow and the noise would go away - happy days.
No need to get a good job, AB, all you need is to be in the right place at the right time with the right experience and recognise the opertunity as it goes past. Certainly, Gary Newman and others like him have done it by getting a job with money, but there are far more pilots on the warbird scene who've got there by the method described above than otherwise.
Good Luck,
A
The Hunter and Meteor produce a fantastic noise through their respective gun holes. I've no 'hands on' experience of the latter, but the former could be sensed as a vibration in the cockpit at around 400kts, if I remember right, or was it 500 - it was a long time ago. However, I do remember that too fast or slow and the noise would go away - happy days.
No need to get a good job, AB, all you need is to be in the right place at the right time with the right experience and recognise the opertunity as it goes past. Certainly, Gary Newman and others like him have done it by getting a job with money, but there are far more pilots on the warbird scene who've got there by the method described above than otherwise.
Good Luck,
A
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Thats quite a few beer tokens.......but I could do with trimming down ! ! !
Think I'll have to make do with something a little cheaper for a while yet till my 6 numbers come up !
Whats the going rate on a Chippy these days ?
Maybe worth a look...........
www.spitfiresquadron.com
Think I'll have to make do with something a little cheaper for a while yet till my 6 numbers come up !
Whats the going rate on a Chippy these days ?
Maybe worth a look...........
www.spitfiresquadron.com
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No its not.....sadly.....but they say that its a 1-1 scale replica. theirs is currently being built in Oz.
There is a Merlin engine option....but if youve got the money for a 1500hp engine and servicing then I suggest your going to try and buy the real McCoy ?
There is a Merlin engine option....but if youve got the money for a 1500hp engine and servicing then I suggest your going to try and buy the real McCoy ?
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Meteor "blue note" - I had a conversation a couple of years ago with Rod Dean who had been displaying the (Kennett?) Meteor F8 that has now gone overseas.
His enthusiastic (too enthusiastic, according to his engineer, apparently) routine produced a wonderful noise - I think I remember Rod saying that he thought it was produced by the cannon-shell ejection chutes that project from the underside of the Meteor's nose.
Really good routine, that - anybody else remember it?
His enthusiastic (too enthusiastic, according to his engineer, apparently) routine produced a wonderful noise - I think I remember Rod saying that he thought it was produced by the cannon-shell ejection chutes that project from the underside of the Meteor's nose.
Really good routine, that - anybody else remember it?
BIG MISTER I'll think you'll find it's not a 1:1 copy but an 80% scale replica made in OZ by Supermarine Aircraft and designed to take the new Jabiru flat 8 cylinder engine. This is what gives it the cowling like the Griffon engined Spits. I doubt VERY much there is a Merlin option on this........
250 mph Vne and 250 hp sounds reasonably affordable to me. OK it's not the real thing but it's damn close.
Looking at the War-Bird Squadron website. they seem to have an 80% scale Mustang as well. Anybody know where that comes from? Not wishing to denigrate their efforts but claiming that their "Spitfire" is a "rare, specially designed trainer / two seater" is stretching the point a bit as I think all these kit Spits are two seaters. The statement " A Group of Spitfire Enthusiasts have gained ex MOD Base to reform a Spitfire Sortie base" seems a bit of a fantasy as well. They could have used a cameraman with a steadier hand for the videos too.
Having just re-read the above, it sounds a bit whingey but you know what I mean
250 mph Vne and 250 hp sounds reasonably affordable to me. OK it's not the real thing but it's damn close.
Looking at the War-Bird Squadron website. they seem to have an 80% scale Mustang as well. Anybody know where that comes from? Not wishing to denigrate their efforts but claiming that their "Spitfire" is a "rare, specially designed trainer / two seater" is stretching the point a bit as I think all these kit Spits are two seaters. The statement " A Group of Spitfire Enthusiasts have gained ex MOD Base to reform a Spitfire Sortie base" seems a bit of a fantasy as well. They could have used a cameraman with a steadier hand for the videos too.
Having just re-read the above, it sounds a bit whingey but you know what I mean
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Low and Slow
I take your points re the 80% scale and the engine options and that was excatly what I said to them myself......having seen the same adverts for the 80% scale jobby in the magazines.
I can only report back what they said....its not 80% its 100% and the Merlin is on the options list too. Seems this is another animal.
I take your points re the 80% scale and the engine options and that was excatly what I said to them myself......having seen the same adverts for the 80% scale jobby in the magazines.
I can only report back what they said....its not 80% its 100% and the Merlin is on the options list too. Seems this is another animal.