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That is the performance Mtt's guaranteed by contract to the RLM its airplanes would perform. If an airplane did not fall within that +/- 5% then the RLM did not pay for it or accept it as one of the airplanes it purchased from Mtt. Each airframe was test flown before it was accepted for Luftwaffe service and it had to meet that minimum specification. |
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#3
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If it is a question of credibility, between the manufacturer data and that "test" done in France, I trust more in the manufacturer's, for two reasons: 1) if you read in the detail the french test, is clear that it was done far from the conditions you want for a test. 2) I havent heard of a single LW report complaining about the manufacturer's specifications being wrong. Cheers! |
#4
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Well, manufacturers tend to stick with margins specified and use them, if they have the quality system giving them the ability to mangage the narrow gab. If 500km/h +/-5% on ground level was specified, I would expect the standard plane to leave the shops testified to be able to reach 475km/h, but not one km/h more.
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http://cornedebrouwer.nl/cf48e |
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#6
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It was discovered when the Luftwaffe was rejecting a large number of aircraft. The complaint was excessive vibration and fuel consumption. It generated several reports on the issue and was fixed promptly. It caused NDW to suffer greatly increased oversight and they almost lost their contract. |
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#9
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#10
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![]() concerning this: I think it would have been a dangerous policy from an industrial point of view if they aimed at 475 kmh while they guaranteed 500 +/-25 kmh. We know that during production of the plane (all parts, some coming from suppliers not under quality control of the Bayrische Flugzeugwerke) and the engine (all parts, some coming from suppliers not under quality control of Daimler-Benz) variations occur (that's why each part will have its own specs +/- acceptance margins). When all parts assembled it will lead to a performance that will vary from one plane to another. Now if they had aimed at being at the lower limit they would have ended up with planes that would not have met the specs and therefore increased the number of planes rejected by the customer. This is imho something that someone who wants to run his company profitable wants not to happen. If one reads the chart by the French one should assume that they could have reached about 480 kmh on deck. At 500m they are at 494 kmh. Last edited by 41Sqn_Stormcrow; 10-26-2011 at 11:20 AM. |
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