General Electric T58-GE-8F Free Shaft Turbine Engine


Type: Dual spool, free shaft turbine
Inlet: Axial bellmouth inducer, with variable geometry inlet guide vanes
Compressor: 10 stage axial, with variable geometry stators
Burner: Annular through flow combustor
Turbine: Dual spool, two stage axial gas producer turbine, single stage power turbine
Exhaust: side facing, single exit scroll diffuser outlet
Power Rating: 1,370 shaft horsepower at 6,000 rpm
Rated Torque Output at Full Power: 1,270 lb/ft @ 6,000 rpm
Peak Torque Output: 1,800 lb/ft @ 1,200 rpm
Weight: 350 lbs.
Power/weight: 3.9:1 hp/lb
Air mass flow: 13.7 lbs/sec @ 27,300
Compression Ratio: 8.4:1 at 27,300 rpm
Specific Fuel Consumption: .64 lb/shp/hr



Here is the specs with a reduction drive. Note the peak power is at 1870 shp at 6000 rpm with tq being 1270 at 6000 rpm.

Then...more importantly...peak Tq is 1800 ft/lbs at a mere 1200 rpm. Used with the right tranny...and rear gearing this thing could fly. Note the weight of the powerplant as well.

 

hey Al, I would venture to say the ITT issue would be null in a less demanding vehicle such as a race car , another popular choice is the T-53, output rpm is already geared to 6500 ish, and like 1400 hp in some models.

 

The above is from an 8f. Its an old obviously outdated engine. The newer ones are the same size but put out a alot more power.
I worked on the -16 which is what the Marines use in thier CH-46E helos. It could stay aloft on one engine.

 

No doubt Tony I would not concern myself much with aircraft limitations . hell..the GE-T58-16 had the normal fuel metering...but it also had what was claled emergency throttle. Basically a big crude needle valve that would just dump fuel if more power was needed in an emergency situation. I bet we could get 4000-5000 hp from that 350 lb engine in short bursts...hehehe. Lets buy one!!!!!!!!

 

Please expound on the itt issue/problem you spoke of earlier.

 

thanks suprakid<<thumbs up>>

 

Well...in a turbine...power is basically temp...measured in ITT (inter turbine temp) Some manufacturers call it T5 or other things....but its basically the max temps seen out of the combustion chamber. They are extreme. Engine manufacturers put a cap on that temp. But that mostly for reliability and prediction of overhaul intervals. If an engine is operated at and ITT of 870C for 1000 hours it could be due for overhaul. Now keep in mind we are talking about aircraft that fall out of the sky. So naturally they are conservative. In some cases where no engine with the required power is available..they will use the same engine with e different fuel control and just run it 50 degrees C hottter...now it will make 200 more hp. But they will shorten the overhaul interval to 700 hours of operation time.


What does that mean? You can GREATLY exceed that 1300 hp very quickly. 2000 hp would be a snap. And you could exceed it so much it may destroy the engine in a few runs. So you need to come up with a way stay within the parameters you set. On a turbine...its ALLL about temps. Temps is power..controlling temps is longevity, etc etc.

Buy it...Ill help you any day. I guarentee we could get it running. Mate it to a gear box and put a built powerglide behind it...it would fly! Ill even get you free fuel.

 

sounds like you need a intercooler!!!!!!!!!!!!!!!!!!!!!