Turbine Props...Engine Controls?

[Fozzer]

I'm still convinced, (silly old me!), there is still a confusion between engine types by the way they are described:

When described as a "Turbo Prop" it is actually a Turbo-Charged Piston Engine driving the propeller.

When described as a Turbine Prop, there is no confusion. The engine is a (Pratt & Whitney, etc) Turbine engine driving the propeller.

As Brett mentioned, a similar confusion occurs here, regarding the description:
"A Turbojet is a jet driven plane. In the early days, turbojets were the only type of jet (707).. later planes were/are sometimes called turbofans (747) (high by-pass turbojets)..".

When I get into my TC Beech Baron I refer to it as a "Turbo-Prop"; (Turbo-Charged Piston Engine).

When I get into my Beech King Air I refer to it as "Turbine-Prop"; (PT-6/Garrett Turbine Engined).....;)...!

I generally avoid getting into any aircraft fitted with a "Jet Engine?"...(Nasty things!)...  ;D...!

Paul.... ;).... 8-)....!

Off in my P&W PT-6 Turbine Prop, Beech King Air in a minute, leaving my Turbo-Prop, Beech Baron TC grounded for the mechanics to fit new exhaust driven Turbo-Chargers to my RR Continental, Piston Engines.
.... ;)...!

So many descriptions, so much confusion.... ::)... ;D...!

http://en.wikipedia.org/wiki/Beechcraft_Baron

http://en.wikipedia.org/wiki/Beechcraft_Super_King_Air

Turbo Engines...;)...>>>>

http://www.precisionturbo.net/

[pepper_airborne]

Maby we should check the manufacturers websites too avoid any further confusion?

[Fozzer]

Maby we should check the manufacturers websites too avoid any further confusion? ;D

.... ;D...!

If you want "Confusion" try this...;)...>>>

http://en.wikipedia.org/wiki/Netherlands

Paul....Engine enthusiast.... 8-)...!

Multi-Cylinder Motor Cycle engines are often incorrectly described as being "In-line", whereas, in fact, they are positioned "Across the Frame". The cylinders are "In Line", but the engine is positioned Across the Frame!
One of the few "In-Line" motorcycle engines was fitted to the Sunbeam twin cylinder S7/S8 motorcycle. (the engine is located in line with the frame; front to rear!).
In line V-Twin = Ducati
Across the Frame V-Twin = Moto Guzzi

[pepper_airborne]

Confusion indeed

[Hagar]

My dear Paul. I think it is you that is causing the confusion. I clearly remember when Rolls-Royce was testing the first British turboprop engines. Rolls-Royce first tested the Dart on a Lancaster test-bed & the bigger & more powerful Rolls-Royce Tyne on the nose of an Avro Lincoln. I saw the Tyne Lincoln* demonstrated at the 1956 Farnborough Air Show flying quite happily on the Tyne with the props on the other 4 engines feathered. The Dart, Tyne & all similar engines have always been referred to as turboprops or propjets (note no hyphens). The term Turbine Prop is not generally used in the aviation industry & would more likely refer to the wind driven propeller on a wind turbine. Any search on Google will confirm it. http://en.wikipedia.org/wiki/Turboprop

The type of engine you're referring to as a Turbo-Prop is a turbo-supercharged or turbocharged engine. These do not necessarily drive propellers. http://en.wikipedia.org/wiki/Turbocharger

*PS. Tyne Lincoln here. http://1000aircraftphotos.com/Contributions/CollierMaurice/4610.htm

[Fozzer]

My dear Paul. I think it is you that is causing the confusion. I clearly remember when Rolls-Royce was testing the first British turboprop engines. Rolls-Royce first tested the Dart on a Lancaster test-bed & the bigger & more powerful Rolls-Royce Tyne on the nose of an Avro Lincoln. I saw the Tyne Lincoln* demonstrated at the Farnborough Air Show flying quite happily on the Tyne with the props on the other 4 engines feathered. The Dart, Tyne & all similar engines have always been referred to as turboprops or propjets (note no hyphens). The term Turbine Prop is not generally used in the industry & would more likely refer to the wind driven propeller on a wind turbine.. Any search on Google will confirm it. http://en.wikipedia.org/wiki/Turboprop

The type of engine you're referring to as a Turbo-Prop is a turbo-supercharged or turbocharged engine. http://en.wikipedia.org/wiki/Turbocharger

*PS. Tyne Lincoln here. http://1000aircraftphotos.com/Contributions/CollierMaurice/4610.htm

Confusion/Delusion, Tomarto/Tomayto... ...!

...anyway, I'm off for a spin in my Beech King Air 350 fitted with an inline (no Hyphen) Pratt and Whitney PT-6 Turbine Engine:
"The PT6A is a free turbine providing 500 to 1,940 shaft horsepower (433 to 1,447 kW)".

...so wish me luck... ...!

Paul... ...!

P.S. I love it when Sim V says "Good Morning Fozzer" to me each morning now...a nice, new addition!....So polite and satisfying... ...!
...and my Forum Time registers AM and PM... ..!!

[Brett_Henderson]

LOL.. (fun thread)..

However.. if you're standing on the ramp next to a KingAir, and someone asked what type of plane it was... if you don't say, "it's a turboprop", that's where confusion sets in.

And if you're standing next to a Mooney Bravo, waiting for a your first , high-performance lesson, in it... and call it a turboprop... your instructor will send you home..

[Brett_Henderson]

Multi-Cylinder Motor Cycle engines are often incorrectly described as being "In-line", whereas, in fact, they are positioned "Across the Frame". The cylinders are "In Line", but the engine is positioned Across the Frame!
One of the few "In-Line" motorcycle engines was fitted to the Sunbeam twin cylinder S7/S8 motorcycle. (the engine is located in line with the frame; front to rear!).
In line V-Twin = Ducati
Across the Frame V-Twin = Moto Guzzi

Oh geez.. it must be different for bikes.. more confusion.

For Automobiles.. The terms "in-line" and "opposed" mean relative to the engine itself.. more specifically, the crankshaft.. not the automobile's frame.

If two cylinders are are on the same side of the crankshaft (regardless of their orientation to the vehicles frame), they're "in-line". If they're on opposite sides of the crankshaft, they're "opposed"

[Falcon500]

So where does that leave the PW R-4360 turbo-compund engine, is is a turbocharged  turbine engine with piston powered induction fan?


to me a Turboprop is a aircraft with a jet(turbine) powering a prop

and a piston engine is a piston engine no matter if it carborated, force induction, turbocharged, supercharged, turbo-supercharged, turbo-compound, Inline, V, H, sleeve valved, poppet valved, rotary, or radial



this is a fun thread

[garymbuska]

If you look at the engine of the King air you will notice right behind the propeller two exhaust ports facing opposite directions and the nacelle is closed in the back the two ports are the exhaust of the turbo charger.
Now if you look at a engine of a P-3 orion or C-130 you will notice there are no such ports and that the actual engine is a jet engine with a exhaust in the back just like any other jet engine. Turbo fan engines are unique they have a huge fan in front and a area that allows air to go past the intake of the engine. The reason for this is so that birds will not go through the actual engine itself. Look at a old B737-200 and you will notice that any thing that goes into the fan will go into the engine. The reverser's are different as well turbofan engines split at the middle and there are plates that deflect a portion of the air back towards the front of the aircraft. 8-)  

[Brett_Henderson]

If you look at the engine of the King air you will notice right behind the propeller two exhaust ports facing opposite directions and the nacelle is closed in the back the two ports are the exhaust of the turbo charger.
Now if you look at a engine of a P-3 orion or C-130 you will notice there are no such ports and that the actual engine is a jet engine with a exhaust in the back just like any other jet engine. Turbo fan engines are unique they have a huge fan in front and a area that allows air to go past the intake of the engine. The reason for this is so that birds will not go through the actual engine itself. Look at a old B737-200 and you will notice that any thing that goes into the fan will go into the engine. The reverser's are different as well turbofan engines split at the middle and there are plates that deflect a portion of the air back towards the front of the aircraft.

Ok.. now this is getting silly. The KingAir is not turbo-charged in any way, shape or form. It is a turboprop. A turbine drives the propellor. A turbo charger is used to pressurize the intake manifold on a PISTON engine. The KingAir has no pistons..

The KingAir and P-3 are both turboprops. It's just that the turbines are different types. But it is still a turbine that makes the propeller spin on both of them..

The reason for High By-pass Jet engines has nothing to do with birds ...

[Hagar]

LOL Now this is really getting confusing.

If you look at the engine of the King air you will notice right behind the propeller two exhaust ports facing opposite directions and the nacelle is closed in the back

The reason for that is the PT-6 fitted to the King Air & most aircraft applications is a 'reverse flow' engine which is actually mounted back-to-front with the exhaust outlets at the front & the air intake at the rear. This allows the prop to be fitted at the exhaust end without the long drive shaft used on more conventional turboprops. It's very clever but still a turboprop.

[Brett_Henderson]

Maybe this will clear it up. The KingAir uses only the P&W turbine that vents its exhaust out the side (for reasons Hagar explained)... But the Cheyenne has been fitted with both the P&W type turbine, and the Garrett style that vents the turbine exhaust out the rear (like a P-3).

These Cheyenne photos were the best I could find quickly..

[garymbuska]

All right I surrender. A Delta airline mechanic had told me the story about the birds on turbo fan engines. And I did see a engine that had a bird strike while in flight, boy what a mess. But there was no actual engine damage as the bird did not go through the engine it went through the fan then on the outside of the intake. All they had to do was to replace a few blades on the fan and of course balance them.
Now on  the King Air If the engine has no pistons then that means it needs bleed air to start it does it not. I know for a fact that the P-3 needs bleed air and it has its own APU. I did not think the King Air had a APU and if it does not then it would need a AIR start cart. Or is there some other means it has to create bleed air? Perhaps some kind of air compressor?  8-)

[Hagar]

[quote]Now on