Why Use Turboprop Instead Of Jet

Turboprops use the exhaust drive a propeller and turbofans accelerate the exhaust to produce thrust. They are not as efficient as jet engines for high altitude long distance flights.

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That is the reason why a jet engine of a lower diameter than a propeller comes into its own at high speed which the propeller can never achieve but a propeller will always win in traction power at slow or take-off and landing speeds.

Why use turboprop instead of jet. Theyre capable of comfortably cruising at speeds of 500mph and intercepting aircraft do not have to assume a high angle of attack to pace them unlike other turboprop craft. The differentiation is in how exhaust energy is used. It runs more efficiently while providing a higher power output per unit of weight than a jet.

Sure its a prop plane colloquially. And sometimes that confusion leads to reticence on the part of passengers to fly them. They have a range of a little over 9000 miles and can often stay airborne in excess of 24 hours which combined with the noise vibration and stress of the sortie can fatigue the aircrew considerably.

Because they are economical. The turboprops are more tolerant of hail than the jets. A major advantage of a turboprop over a jet is the unmatched operating economics.

This post is part of a three-part series comparing piston turboprop turbofan and turbojet engines. Additionally the two types of airplanes used. At a higher speed the fixed pitched blades of the compressor are fed with the rammed in air and this acts as a primary pump to the high-speed intake at which the jet likes to perform.

Expect optimum fuel efficiency when flying at low altitudes ideally below 25000 feet. Because the propellers have a higher disk area than a typical jet plane they can provide a lot more thrust. It is more energy efficient to push backwards a cylinder of large diameter of air with large mass with relatively slow speed than a cylinder of small diameter of hot gases with high speed.

Since the engine doesnt have to work as hard or use as much fuel to make a journey less fuel is used per mile. Generally aircraft under 100 seats use turboprop engines for this reason. If you need to travel to the other side of the globe youll have to charter a jet.

You can see the other two posts here. The propellers of a turboprop also serve a great purpose in cost-effectiveness. Jet aircraft not surprisingly excel in distance and speed.

Turboprops on the other hand can handle shorter distances more cost-effectively and can get you to otherwise inaccessible destinations. Their efficiency decreases as the speed increases above Mach 0607In comparison Boeing 747-8 cruises at around Mach 085Their efficient cruise speed is less compared to jet aircraft700-750 kmph versus 880-840 kmph. A turboprop engine is more lightweight than a jet giving it better performance during takeoff.

A turboprop aircraft is pretty much similar to a jet aircraft in mechanical terms. It has a jet engine or engines turning a propeller as opposed to a fan. This is why all the turboprop aircraft are used of short haul flights.

A turboprop aircraft is perfect for regional travel. Turboprop aircraft were specifically designed to be the most efficient at. In turboprop engines a gas turbine uses gas power to drive a propeller and produce thrust one of four reaction forces needed for flight rather than relying on jet exhaust like turbofan engine aircraft.

Airplanes that penetrate thunderstorms have an increased chance of encountering hail. Jets have turbine engines encased with fan blades while turboprops have a propeller on the outside. While the speed of a Cessna Conquest II is nearly that of a jet cost savings of up to 40 are possible while travel time even on a trip as long as Palm Beach to New York is only as.

This is a source of confusion for many passengers. Conversely a jet engine is perfect for longer ranges and has more power for a bigger aircraft with more passengers. The only significant difference is the engine and in some cases the position of wing.

Why do we have turboprop engines if they use jet engines to drive propeller. Despite the name a turboprop is not a piston-driven aircraft.

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