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Alchemy · July 31st, 2003, 23:32

39,000 RPM ????

Let's say the compressor blades are 4 feet in diameter. That means a circumference of about 12.6 feet. So they're moving 12.6 feet 39,000 times every minute, that's 490,088 ft per minute, 8,168 ft per second, or 5,569 miles per hour, roughly mach 7.3 at sea level under standard conditions. Wouldn't the engine disintegrate at these speeds?

July 31st, 2003, 23:32	#9
Alchemy Old Skool Join Date: Aug 2001 Location: Austin, TX, USA Posts: 1,909	Re: Qs about turbofans 39,000 RPM ???? Let's say the compressor blades are 4 feet in diameter. That means a circumference of about 12.6 feet. So they're moving 12.6 feet 39,000 times every minute, that's 490,088 ft per minute, 8,168 ft per second, or 5,569 miles per hour, roughly mach 7.3 at sea level under standard conditions. Wouldn't the engine disintegrate at these speeds?