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Why don't you go & write your own book! Oh wait, ummm, nevermind...
(Seriously though, I have supervised students in the past, & I'd kindly advise as to which points be checked/revised.
& hey, even your book needed a better editing/proof-reading, as you well know.)
Yes, Raymond really ought to have revised that article by now, certainly as a 'thesis' it would not been passed by an informed supervisor,
based on a number of cogent points.
Not rocks, cogent points/corrective criticism/scientific method, not emotive sentiment/defensiveness/whataboutism.So thats a no, then? Happy to throw rocks but not to comtribute data ?
PS thanks for the marketing, I`m sure the more you complain about my book the more interested everyone else will get about what you`re moaning about.
lets tone this down, you have only just been allowed back on this forum !Why don't you go & write your own book! Oh wait, ummm, nevermind...
(Seriously though, I have supervised students in the past, & I'd kindly advise as to which points be checked/revised.
& hey, even your book needed a better editing/proof-reading, as you well know.)
Very well. Sounds reasonable.lets tone this down, you have only just been allowed back on this forum !
Interestingly, Rod Banks wrote that even with the benefit of hindsight (and his intimate knowledge of the problems, far better than we can research), it is difficult to judge if the Sabre was worthwhile. Additionally, he states that the Sabre "was not all that efficient" and had a lower mechanical efficiency than either the Merlin or the Griffon, despite the Sabres greater piston area. Banks also quotes the Sabre at five times the cost of Merlin, and the Hercules at twice the cost of the Merlin, both expensive engines being sleeve valves.
Further comments by Banks are generally not supportive of the Sabre. However, he does state that when the Sabre had been made reliable enough, the Typhoon was a fast and powerful low altitude aircraft, of that moment.
Eng
That seems to assume that hadn't the Tempest with the Sabre been available, they'd have just stood there with their hands in their pockets and done nothing.For sure, one large group of 'stakeholders' needed no convincing how worthwhile the Sabre was, viz: the Londoners spared the
800 or so V1 cruise-missiles (the 'lion's share of fighter victories, by quite a margin) which the Tempest units successfully prevented
from crashing down on the long-suffering inhabitants of the 'Big City' - who'd be otherwise killed/injured/de-housed, even moreso.
@ Engineman, per your X applied to my reply to your post, hey do a fact-check by all means, it will confirm what I wrote.
Edit: Putting an X on this post, rather than checking the evidence base, is a bit silly, yeah?
My reply stands on its merits as valid, much of the data is available here in this site,
You haven't posted a single piece of archive evidence which supports anything you've said during this entire debate. You are argumentative unlikable and totally uninterested in learning anything, yet insult people like Engine man and Robert Raymond who know more on these topics than most people alive,@ Engineman, per your X applied to my reply to your post, hey do a fact-check by all means, it will confirm what I wrote.
Edit: Putting an X on this post, rather than checking the evidence base, is a bit silly, yeah?
My reply stands on its merits as valid, much of the data is available here in this site, to verify it...
& naturally, an X, indicating 'disagree' is a 'carte blanche' invitation for a fact-based response.
That seems to assume that hadn't the Tempest with the Sabre been available, they'd have just stood there with their hands in their pockets and done nothing.
For instance, RAF Mustangs on anti-V1 duty operated with 25 lbs boost (on 150 grade fuel) and were actually slightly faster than the Tempest V at the 2000-3000 ft altitude the V1's were coming in at. Not a huge difference in absolute terms, about 410 mph vs 405 mph for the Tempest, but considering the V1 flied at about 400 mph the relative speed difference was quite substantial.
Tempest V Performance
Tempest Performance Data, wartime flight trials and reports of Tempest aircraft. Tempest Performance Testing. Pilot Combat Reports.www.wwiiaircraftperformance.org
Or if all the effort that was spent on sleeve valves had been spent on jets instead, maybe they could have had non-trivial numbers of Meteors on anti-V1 duty?
What was the catchphrase of the grizzed cop?You haven't posted a single piece of archive evidence which supports anything you've said during this entire debate. You are argumentative unlikable and totally uninterested in learning anything, yet insult people like Engine man and Robert Raymond who know more on these topics than most people alive,
That set of posting rules means you'll have to delete all your own posts though ?What was the catchphrase of the grizzed cop?
Ah yes, 'Just the facts ma`am' - & I've presented plenty in a fair spread of topics, already.
Kindly take note of the moderator's express wish & leave out any personal/petulant/abrasive/grandstanding comments, ta.
In fact, the Ricardo sleeve-valve CI Kestrel did run well enough to gain for Britain, the World Land-speed Record for diesel cars.Ricardo converted a Rolls-Royce Kestrel to Diesel with a sleeve valve system ~1930. It was disappointing and broke a lot.
Refer to post #91, a couple of pages back. The period technical journal article is formed on Napier Works information.You haven't posted a single piece of archive evidence which supports anything you've said during this entire debate. You are argumentative unlikable and totally uninterested in learning anything, yet insult people like Engine man and Robert Raymond who know more on these topics than most people alive,
What, Flight Magazine ?Refer to post #91, a couple of pages back. The period technical journal article is formed on Napier Works information.
It just so happens that one of the merits of the Sabre, was not only power to push the Tempest through the thick air ('soup'),
at low levels - fast, but also its endurance at high power-settings, in order to run down the cruise-missiles, which themselves
gained speed as they burned off the fuel fraction of weight carried.