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1. only the leading edge of the rotor blade could theoretically reach stagnation temperature and chordwise conduction in the metal would prevent even the local temperature there from reaching xxx
1. even in 'uncooled' turbines (those with no cooling passages in the blades), some cooling air is bled from the compressor and passed over the turbine disc and blade roots: the metal temperature will therefore be appreciably less than 1100 K near the root· radius for which the stresses have been estimated.