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Sea Hawk

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Viewing 15 posts - 16 through 30 (of 134 total)
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  • in reply to: Science Museum, London, UK #1292021
    Sea Hawk
    Participant

    mmmmm Avro 504 porn!

    😀

    TT

    Of course some might prefer SE5A porn!

    in reply to: Hypothetical aircraft to break the highspeed record #1303507
    Sea Hawk
    Participant

    Well put stuart

    I suppose one problem is attracting the public money,would they pay to see a small a/c ‘buzzing’ round….possibly!!(personally I would not fly from the UK to see them!!)Do they pay to see/hear the ‘dinosaurs’ blattering past ….yes definitely.Not many a/c at at renoare modified though and one can walk
    through the pits and get a close look at some wonderful a/c.

    Similar problem with frank engined racers??most available jets are just loud and those with fan engines are just ..erm… quiet!!!
    If you are talking about a Hunter or Meteor making the ‘blue note’ … you got my vote;)

    Also most ‘interesting’ jets have horrendous fuel consumption at low altitude.

    Noise is a very subjective thing but some noises are ‘nice’,some are not.

    To get back on thread… I am sure it is possible to build a record winner with new technology but then it will disappear into the record books where nobody looks,I am just not sure it would be an attractive racer at reno unless it is of a fairly imposing size with a big engine;)

    I think that you are rather missing the point lads – we were discussing, how hypothetically one could build a faster ‘plane for Reno not realistic possibility – budgetary reasons if no other would prevent a “clean sheet of paper” approach, or at least one that represented properly engineered ‘leading edge technology. I cannot see a threat to the magnificent dinosaurs at present, which of course is all what we would rather see, but this does not mean that it is hypothetically impossible to do better.

    in reply to: Hypothetical aircraft to break the highspeed record #1305159
    Sea Hawk
    Participant

    They already have a jet class but it just aint the same as a big recip engine blattering past at 450+… trust me !! 😉

    Thought that this is only limited to L-39s – in which case I agree not quite the same supersonic fighter jets and as you say not a match even for souped up post WW2 piston engined fighters!

    in reply to: Hypothetical aircraft to break the highspeed record #1306046
    Sea Hawk
    Participant

    if you just want to go faster there is already an alternative that makes F1 type engines just as redundant as all other IC types, it has the blades on the inside, runs at over 15000 rpm, and theoretically only one moving part, and was designed by a man called Frank.

    Quite – but I believe that the rules ban Frank.

    in reply to: Hypothetical aircraft to break the highspeed record #1307368
    Sea Hawk
    Participant

    But the really key thing is that with our new state of the art engine the whole package would be so much smaller, lighter and more streamlined – it is a virtuous circle. The smaller modern plane would even be stressed to pull more g in the turns, as well as being faster sleeker and more nimble.

    The Reno racers remind me so much of the old Indy Roadsters – great dinosaurs of twenties and thirties and technology built around their classic old Offy and Novi engines and blown away by the arrival off science with Colin Chapman and Lotus in 1963 – less power but a much smaller and sleeker package. The Reno racers are magnificent but they are dinosaurs…

    in reply to: Hypothetical aircraft to break the highspeed record #1308579
    Sea Hawk
    Participant

    Think that we will have to agree to differ on that one. I agree that one needs sufficent torque to swing the prop, but beyond that torque basically gives you accelleration – it takes power to pull an aircraft through the air. All the torque in the world won’t help you without power – which is why these guys talk about how much power their engines punch out not how much torque. Conversely an engine that is all power and no torque would take forever to get up to speed (although to an extent variable propellor pitch would help). In fact one could get both lots of power and reasonable torque from a modern engine design – one has to accept that engine technology and materials technology has moved on rather a lot over the past sixty years. Finally I would suggest that tractor pullers and Reno racers don’t exactly have the same engine tuning requirements.

    in reply to: Places to go in the Czech Republic #1308582
    Sea Hawk
    Participant

    I would agree Prague Technical Museum is superb. It does not have a huge number of exhibits but the quality of what it has is superb – have been there a couple of times. It includes three unique survivors on our WW1 list, some quite interesting (and extensive) aircraft models, and a superb collection of cars including a pre war Grand Prix Mercedes (from memory a W125) and a GP Bugatti (cant remember if was a T35 or T53). But the best exhibit is in this photo (taken with a 20mm lens, which emphasises how tightly packed in it all is) – that will wind you all up! You might like a beer afterwards on the terrace on top the hill overlooking the river afterwards, which is only about 100 yards away.

    If you get fed up with the pick pockets in Prague and are looking for general tourist destinations České Krumlov is fabulous, and if you have the time České Budějovice (and just not for the beer!), Mariánské Lázně and Telč (although there is not a lot of the historic centre) are well worth a visit. But each to his own…

    in reply to: Hypothetical aircraft to break the highspeed record #1308831
    Sea Hawk
    Participant

    If we are talking hypothetical I repeat that one would not start with a great 36 litre lump of an engine based on 1940’s technology – one does not F1 racing with an engine based on a 1940’s sidvalve Ford. Even in 1986 BMW, for example, were getting 1200-1300 bhp out of their four cylinder 1.5 litre engine in qualifying trim. This was relatively early in using ceramics in F1 engines and it still had conventional valve springs and was before crankshafts resembled pieces of bent wire. If one was designing a Reno aircraft from scratch with no reality checks on the available resouces, one would get 4000 hp out of (say) a turbocharged V-12 of 3 to 3.5 litres designed with cutting edge technology and match it to small and very light ‘plane.

    in reply to: WWII Victory Claims #1308953
    Sea Hawk
    Participant

    It’s certainly true you can’t compare claims apples to apples across a/c types, air arms and periods as if they all represent the same level of real damage done to the enemy, they don’t.

    And it’s true the bomber gunner claims were sytematically less accurate than fighter claims, especially bombers in big formations because it was impossible to accurately deconflict duplicated claims, plus a bomber could not stick with its target to assure and see destruction. OTOH the morale effect of crediting claims was an opposing consideration. Even war time intel assumed that fighter losses to US bombers were around 25% of claims (a number hard to verify, some celebrated cases were much worse, but some of those have been misreported as worse than they were, other cases were are high as 1/3 accurate, but it’s in the apparent ballpark). But that wasn’t just true of US bombers, they just operated on a very large scale in daylight compared to other AF’s.

    However I don’t agree that German day fighters were sytematically high overclaimers. In some periods they were, especially late in the war, but for much of the war LW day fighters seem to claimed more accurately than the air arms they faced. The RAF claimed more accurately late in the war, but overclaimed at a considerable rate at certain times earlier. See the discussion in Foreman “Fighter Command Diaries” for example about the ‘circuses’ over France ca. 41-42. It was known from Ultra that the credited claims were out of line with German fighter losses several to one, as German records also reflected postwar, German claims were considerably more accurate in those combats, a situation different than BoB. Likewise Mediterranean, see for example Cull et al “Air War over Yugoslavia, Crete and Greece” RAF fighter claims and those of the Italians against them were about equally and pretty highly, overstated. Against the Japanese early in the Pacific War again US and Brit claims were roughly similarly and seriously overstated while the Japanese had the upper hand; in that period the notorious Japanese overclaims were not always worse than Allied. Again, later on British (and US and other Western) fighter claiming got more accurate while Axis claiming got worse. You can’t make an (accurate) single statement that this air arm claimed more accurately always than that one, even for one type a/c.

    It’s harder to evaluate individual scores; the general situation is the ace in question and a bunch of other friendlies make claims; the total recorded losses of the enemy are less than that total. Who scored what? Sympathetic analysis of the ace will often give the ace ‘first dibs’ on whatever victories the opposing records ‘make available’ but that distorts the probably real situation by assuming the ace was a more accurate claimer than his comrades. Your thesis that he tended to be less so might be true, but it’s hard to prove either way. One example is Marseille; his accuracy is feasible to see, often small combats, in eg. Shores “Fighters Over the Desert” and was pretty good. The day he claimed 17 Allied fighters, the WWII record, he seems to have downed fewer but not many fewer. In general many German super scores were amassed in periods where their claiming can be seen to have been pretty accurate overall (eg. in East). It stands to reason many of the real scores of those pilots, though still in all probably less than they were credited with, were still very high compared to Western Allied aces’ ‘real’ scores.

    This is a huge topic, I don’t think it’s practical to give one list of sources. I think we’d have to focus on a particular period/theater. But again, just tallying the total claims by type doesn’t tell you much, I agree.

    Joe

    Thanks Joe very interesting and informative.

    The more that one thinks about the more complex it gets – as even in a theatre at a particular time the accuracy of claims can vary hugely between units. If I may stick with my BoB analogy, as this has been analysed to death, it is a matter of fact that 12 Group’s ‘Big Wings’ overclaimed far more excessively (without looking it up, a factor of three times worse comes to mind) than did 11 Group as a whole, and there were variations in overclaiming from squadron to squadron. But then I think this is what you are saying…

    As someone who some say has made a career out of being professionally cynical, I instinctively distrust “showman aces” who seem to regard war as an opportunity to project themselves. I am sure that if one looked in detail at the most famous aces then not all of their records would stand up to critical scrutiny. I particularly distrust Luftwaffe scores because, as has been pointed out by those far more erudite than me in the past, their promotion and medal award systems positively encouraged overclaiming.

    But coming back to the main thread, I find it hard to see how the Bf 109 is not the highest scoring plane in history, even if one knocks its number of credited kills back hugely for overclaiming – all those sitting targets on the Eastern Front….

    in reply to: Resurrection Wish list #1311212
    Sea Hawk
    Participant

    Slightly confused because some posts seem to include types that are still extant. If the question is types that are no longer with us, my ten are:

    Handley-Page HP42
    Fokker DR1 (don’t think that any of the replicas are correctly engined)
    Nieuport 17
    DH Hornet
    Albatros DIII
    Handley-Page O/400
    Short Stirling
    Felixstowe F2A
    Dornier Do 217
    Sopwith Tabloid

    Fairey Flycatcher would have been on the list but we already have a replica.

    If we are talking about flying aircraft, my ten would be:

    Hawker Typhoon (pair of)
    DH Mosquito
    English Electric Lightning (in UK)
    Sopwith Snipe
    Fairey Flycatcher
    Handley-Page HP42
    Bristol Bulldog
    Short Sunderland
    DH Hornet
    Handley Page Halifax

    in reply to: WWII Victory Claims #1312564
    Sea Hawk
    Participant

    I should think that the top scoring aircraft overall through out the war ought to be the Bf-109, bearing in mind the amount of action it saw in all 6 years of the wars – especially on the Eastern front.

    I faintly recall reading many years ago, that the top scoring aircraft (shooting down the largest No. of enemy aircraft) of the allies wasn’t a fighter at all, but was in fact the B-17 Flying Fortress!:confused:

    This just highlights the issue of overclaiming, which was as we all know pretty endemic in WW2; however, the two examples that you quote are those where the practice has always seemed me most extreme (Luftwaffe day fighter pilots and US bomber air gunners). To get realistic figures one would need to get a handle on the extent of over-claiming by service and by front and then factor the numbers down accordingly.

    I remember reading in Bungay’s excellent The Most Dangerous Enemy the account of how one of the German top aces was allowed his claim of three kills after one sortie in the BoB despite the armourers finding that his guns had never even been fired (strange however that Bungay does not identify him). One suspects that the problem that those who sought to achieve star status were the worst offenders – can anyone point me to a well researched work that compares the claims of people like Galland, Molders, Bader, Stanford-Tuck, et al with that damage that they actually did based on study of the “other side’s” records?

    in reply to: Hypothetical aircraft to break the highspeed record #1313476
    Sea Hawk
    Participant

    the attacker uses the same wing as the spitful was it’s handeling so bad?

    Good point – but maybe the cynics might say that Attacker pilots were so terrified of ending up in the drink on take off in the underpowered aircraft that anything else paled into insignificance by comparison!

    But back to the thread we have largely been talking about adapting the final generation of piston engined fighters. I think that practically this has to be sensible approach as these were designed tested and developed by large companies with significant resources and were the result of a lot of work. One would think that the overarching objectives in fighter aircraft of speed and manoeuvrability would translate quite well into the objectives that one would want in a competitive Reno racer. However, in a hypotectical world something bespoke, tailored to the precise requirements needed to maximise speed over the Reno course would be the ultimate. The problem is that even the best funded effort would be a piece of back street engineering in comparison to an ex-millitary design and would, inevitably be less thoroughly designed and tested and is likely to be underdeveloped with resultant nasties waiting to be uncovered at the extreme.

    But if we are talking in a hypothethical world I would start with a powerplant designed using F1 technology and high revving engines, which would get out similar power to the WW2 design engines in a far smaller and lighter package. In the airframe modern composites would enable slender, stiff and light construction: the fuselage would pencil thin, with size determined by the cross sections of the engine and the (prone) pilot) and the wings would be similarly slender. At 550 mph plus maybe swept wings would be the way forward. Modern stress analysis techniques would save further weight – redundancies in the structure from slide-rule era design practices would be a thing of the past.

    Presumably one would be hitting one’s head against compressibility issues with the propeller before too long?

    in reply to: Hypothetical aircraft to break the highspeed record #1314382
    Sea Hawk
    Participant

    The trouble is one can ”approach the stall” at quite high speeds during a steeply banked turn,on the shortened course at Reno there is not much straight and level flying at near 500mph speeds.I still reckon a well mannered a/c would be required for this sort of flying,esp with the close proximity of other a/c sometimes.
    The crash at High Post in sept 1944 in which Frank Furlong was killed(Spiteful NN660) during mock combat with a spit i have seen attributed variously to either jammed aileron controls or ”flicking out” of a steep turn at low level but i dont think there was a conclusive result to the investigation.

    I agree absolutely with you, although there are some further questions: One is how “well mannered” the hacked around and heavily modded Reno planes are compared with the stock example anyway? Another is would a Spiteful actually be worse? Another is the relative comparison between a Spiteful and a Mustang. I don’t know the answer to any of these questions – I merely ask.

    I agree that different books have different accounts of the Furlong crash, I always tend to believe primary sources over secondary sources, thus in my view should ascribe more weight to the direct quotes from Shea-Simonds over other sources, as he was there at the time (albeit that he arrived to replace Furlong) and flew the aircraft extensively. According to Shea “Suddenly Frank’s aircraft rolled on its back and flew straight into the ground” he then went on to say that this was originally blamed on pilot error as a result of pulling too much g and how the other test pilots did not accept this, and then went on to relate the story of Jeffrey Quill suffering the jammed aileron rods on the second prototype. Given that rod contols were a new innovation for Supermarine on this aircraft I believe that the jammed control rod theory is the most credible one. But as you say at this remove it is impossible to know for certain.

    in reply to: Hypothetical aircraft to break the highspeed record #1314577
    Sea Hawk
    Participant

    Would think that something based on the DH Hornet, with “super booster” Griffons would be quite interesting – did about 475mph as standard and supposedly was the two engined aircraft that handled most like a single engine one. Failing going for something single engined I would agree that a cleaned up and “super boosted” Spiteful/Seafang would be hard to beat at 494 mph even for the standard ‘plane- just been re-reading the comments of test pilot Patrick Shea Simonds in Price’s Spitfire: A Complete Fighting History Vol 2:

    [INDENT]”As I got used to the Spiteful I found it not unpleasant to fly… To be frank I never liked the “feel” of it as much as… the Spitfire. But the main snag with the Spiteful was its low speed handling… With the laminar flow wing there was no “washout”… You didn’t get a violent wing drop, but you did get a wing drop and there was a pronounced “kicking” of the ailerons. As a warning of incipient stall it was reasonable enough, but it felt nothing like as pleasant as a Spitfire. Approaching the stall the Spiteful felt as if was going to do something nasty. On the flare-out before landing for example, it felt as if it was ballanced on a pin and might tilt one way or the other at any moment. In fact the aircraft didn’t do anything unpleasant, but it felt as if it might do and that was disconcerting until one got used to it. [/INDENT]

    So it seems as if the Spiteful/Seafang was OK but merely damned by comparision with the Spit…

    in reply to: Blenheim Dug Up In Somerset (Merged) #1314900
    Sea Hawk
    Participant

    This story relates to my previous post on the day of the dig here is the link to those pictures, just follow the link once on the site. We are excavating a mossie tomorrow and with permission I will be posting pics of that dig. Will post a link when its done. Hoping to visit Archy Boy this weekend to help claen up the Blenheim and will add pictures of it when its been cleaned up.
    ENJOY:) http://www.spitfirespares.com/

    Thanks Graham! Look forward to seeing the cleaned up pics and the Mossie ones – although I suppose that interest in aircraft wreckage is a bit macabre of me really.

Viewing 15 posts - 16 through 30 (of 134 total)