The latest issue of Christophorus says the original Turbo (1974) had a maximum turbine speed of 90,000 rpm.

Anybody know what the max rpm is for the 996 Turbo's turbine(s)?

 

I bet it's less than an F-15 . . . sorry, I know that's not helpful but I couldn't resist. (The other big difference is you can't refeul air to air. . . there I go again)

 

Yea, those PW engines spin pretty fast! They were the first turbofan engines to have an afterburner, and in the early days of analog engine control units, we had real problems with "burner light" spikes traveling forward through the bypass duct to the face of the engine. This would cause the undesireable result of stalling the fan...and the rest of the engine. It wasn't uncommon to have flames shoot out +30' from the back AND the front of the engine. All of this was fixed when digital engine controls were retrofitted.

That would have been nice when we were on the TOD. Waiting at the Texaco station with only one pump was painful.

 

Thanks Kevin.

 

what about the K24s?

 

K24 turbo speeds

157,000 rpm continuous
167,000 rpm for up to 30 seconds

 

So the real question is how does boost pressure on the 996 Turbo relate to turbine speed on the K16 and K24 turbos.

Assume a stock car. Do some of the chips overspin the turbos?

 

you wouldnt happen to have any pics of this would you?
and are you a pilot? if so, very cool.

 

Ruiner, I'm gonna have you flyin rubber dog **** outta Hong Kong if you don't stop mixing NAVY moviespeak with the AIR FORCE real deal from Dock.

 

I don't have any pictures in print. There are probably examples on some of my old 16mm gun camera film...somewhere in one of my closets...

And yes, I flew F-15's.

 

A quick story about the engine stalls...

When the engine stall occured, the engine had to be shut down and restarted. Sometimes it didn't start following a stall and you'd just RTB and land single engine. I remember one day flying out in W-386 off the coast of Virginia...we were about 200 miles off shore and we were doing ACM (Air Combat Manurever) training above the weather. It was solid clouds from the water up to 30,000 feet, but clear above, so we were playing up high. One of the F-15's got pretty slow at high angle of attack (the worse place for having an engine stall) right at the top of the cloud deck when both engines simultaneously stalled throwing huge flames from the front and back of the engines. He dissapeared into the clouds almost immediately. Starting one stalled engine in visual conditions is one thing, doing it in the weather is a whole other attention getting task. But BOTH engines gone in the weather is about as tough as it gets.