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#21
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On Tue, 31 Aug 2004 10:00:11 +0100, "Keith Willshaw"
wrote: Trouble is the double decked hangar ships (Implacable and Indefatigable) didnt have the hangar clearance to operate Corsairs and there were problems getting enough Hellcats. There certainly were after September 1945. In fact the performance of the Seafires with the BPF in the fleet defence abd CAP role was quite good with landing accidents being much reduced as they gained experience. The above was my basic point, albeit in a post-Hiroshima, end-of-WW2 setting. Gavin Bailey -- But, first, want speed. Bart not greedy as all know. 250MHz enough. I attempt use SGI chip in MB. But chip not fit, then I bend pins. Shove in MB hard. Now apply hammer. Yeah, sit down, ****er! Power on, go BEEEEEP! - Bart Kwan En |
#22
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Presidente Alcazar wrote in message . ..
On Wed, 25 Aug 2004 20:17:41 -0400, (Peter Stickney) wrote: Before the 2 stage Merlin appeared, The folks planning Brit War Production were getting ready to close down Merlin production in favor of its intended followons - the Sabre and the Vulture. (The Griffon was another Rolls private venture) It's a good thig that didn't happen. Whatever do you mean? Surely the war would have ended a lot sooner with fleets of Sabre-engined Lancasters darkening the skies and the emergency runways at Manston and Woodbridge after multiple engine failures? Gavin Bailey There was no problems in the sleeve valved Napier Sabre that hadn't already been solved by Bristol in its succesfull sleave valve radials. In fact the Napiers problems were solved with Bristols help. The Vulture was simply 'developed to death' to provide increasing power for the over specification weight Manchester. The same fate befell the Junkers Jumo 222 which underwent 2 bore and 1 stroke change to increase power to keep up with airframe size weight increases. As a result the engine was pushed to a new limit just as the last set of teething problems had barely adaquetly been solved. |
#23
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"Eunometic" wrote in message om... Presidente Alcazar wrote in message . .. On Wed, 25 Aug 2004 20:17:41 -0400, (Peter Stickney) wrote: Before the 2 stage Merlin appeared, The folks planning Brit War Production were getting ready to close down Merlin production in favor of its intended followons - the Sabre and the Vulture. (The Griffon was another Rolls private venture) It's a good thig that didn't happen. Whatever do you mean? Surely the war would have ended a lot sooner with fleets of Sabre-engined Lancasters darkening the skies and the emergency runways at Manston and Woodbridge after multiple engine failures? Gavin Bailey There was no problems in the sleeve valved Napier Sabre that hadn't already been solved by Bristol in its succesfull sleave valve radials. In fact the Napiers problems were solved with Bristols help. The Vulture was simply 'developed to death' to provide increasing power for the over specification weight Manchester. The Vulture was simply a failure, it was chronically unreliable, and never delivered the promised power. Keith ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= 19 East/West-Coast Specialized Servers - Total Privacy via Encryption =--- |
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#25
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In article , Eunometic
writes Presidente Alcazar wrote in message ... On Wed, 25 Aug 2004 20:17:41 -0400, (Peter Stickney) wrote: Before the 2 stage Merlin appeared, The folks planning Brit War Production were getting ready to close down Merlin production in favor of its intended followons - the Sabre and the Vulture. (The Griffon was another Rolls private venture) It's a good thig that didn't happen. Whatever do you mean? Surely the war would have ended a lot sooner with fleets of Sabre-engined Lancasters darkening the skies and the emergency runways at Manston and Woodbridge after multiple engine failures? Gavin Bailey There was no problems in the sleeve valved Napier Sabre that hadn't already been solved by Bristol in its succesfull sleave valve radials. In fact the Napiers problems were solved with Bristols help. Napier did eventually accept Bristol assistance over the manufacture of the sleeves (and the US milling machines that made it possible) - but only after MAP told 'em to... And the tendency for the Sabre's pistons to melt a bit was only overcome by adding oil to the priming tank. Apart from that - bloody good mill! The Vulture was simply 'developed to death' to provide increasing power for the over specification weight Manchester. The same fate befell the Junkers Jumo 222 which underwent 2 bore and 1 stroke change to increase power to keep up with airframe size weight increases. As a result the engine was pushed to a new limit just as the last set of teething problems had barely adaquetly been solved. Cheers, Dave -- Dave Eadsforth |
#26
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Napier did eventually accept Bristol assistance over the manufacture of the sleeves (and the US milling machines that made it possible) - but only after MAP told 'em to... IIRC it was the other way round, Bristol did not want to reveal it's manufacturing secrets to it's competitor, but was forced to do so... Bristol's secret in successful production of the sleeves was BTW originally "invented" by accident when a worker ground the final surface of sleeves with an undressed grinding wheel. |
#27
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In article ,
Presidente Alcazar writes: On Wed, 25 Aug 2004 20:17:41 -0400, (Peter Stickney) wrote: Before the 2 stage Merlin appeared, The folks planning Brit War Production were getting ready to close down Merlin production in favor of its intended followons - the Sabre and the Vulture. (The Griffon was another Rolls private venture) It's a good thig that didn't happen. Whatever do you mean? Surely the war would have ended a lot sooner with fleets of Sabre-engined Lancasters darkening the skies and the emergency runways at Manston and Woodbridge after multiple engine failures? Just so - there's no doubt at all that the war would have ended earlier. But then, we'd probably all have umlauts on our keyboards. I find it amazing, in some ways, that Sabre development was so persistant. After the blinding success of the Napier Dagger (Same configuration only smaller) engined Hereford (Hampden with Rapiers) Medium Bomber Motorglider. -- Pete Stickney A strong conviction that something must be done is the parent of many bad measures. -- Daniel Webster |
#28
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In article , Pentti Kurkinen
writes Napier did eventually accept Bristol assistance over the manufacture of the sleeves (and the US milling machines that made it possible) - but only after MAP told 'em to... IIRC it was the other way round, Bristol did not want to reveal it's manufacturing secrets to it's competitor, but was forced to do so... I was going on the recollections of John Howlett, who was the MAP area controller for the South. He stated that Bristol were 'mature enough to offer any help they could give, but the offer wasn't taken up'. He believed that Napier felt they had something to prove. He may have formed an incorrect view, but he was at the heart of setting up the facilities for engine production at the time. Bristol's secret in successful production of the sleeves was BTW originally "invented" by accident when a worker ground the final surface of sleeves with an undressed grinding wheel. It was fortunate that the 'sub-standard' sleeves were allowed to pass quality control and get into the engine! Cheers, Dave -- Dave Eadsforth |
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