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Thread: How many engines on a Trident Three?
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Old 31st Mar 2008, 18:33
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Shaggy Sheep Driver
 
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Trident two was a Trident 1 airframe with uprated Speys, probably the 'best' Trident. Trident 3 is a stretched 2, but the Spey couldn't be further developed so the '3' was a tad underpowered for hot and high takeoffs. Hence the boost engine.
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