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Piper PA-47 PiperJet
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Piper PA-47 PiperJet
The Piper PA-47 "PiperJet" was a single-engined very light jet (VLJ) that was intended to be developed and built by Piper Aircraft. However, following a change of ownership at Piper, it was decided to redesign the aircraft as the PiperJet Altaire. Despite being technically successful, the Altaire project was canceled in October 2011 due to economic conditions. The aircraft is the first proposed single-engined civilian aircraft with a podded engine located on the tail.
The PiperJet was announced in October 2006, as a competitor to the twin-engined Eclipse 500 and Cessna Citation Mustang. The aircraft's fuselage was the same cross section as the propeller-driven Piper PA-46 series, with a 4 feet (1.2 m) increase in length. It was to be capable of carrying up to 7 passengers and cruise at 360 knots (666.7 km/h), at a maximum altitude of 35,000 feet (10,668.0 m). Maximum range was expected to be 1,300 nautical miles (2,407.6 km), with a full-fuel payload of 800 pounds. Piper selected Williams International to supply its FJ44-3AP turbofan engine for the PiperJet.
Due to the engine being mounted above the center of gravity, power was highly stabilizing (addition of power would push the nose down), which could have been disconcerting to pilots. Initially, Piper designers incorporated an automatic pitch trim system to coordinate horizontal stabilizer angle of incidence with power setting. This system was later replaced by a vectored thrust nozzle, developed by Williams International, which resulted in reduced weight and simplified manufacturing processes.
A design feature of the aircraft was the use of a straight duct air intake design for the vertical stabilizer (tail) mounted engine, similar in engineering design concept to a McDonnell Douglas DC-10, rather than the s-duct arrangement of most trijet aircraft designs such as the Dassault Falcon 900.
A selling price of US$2.199 million in 2006 dollars was initially set and as of February 19, 2007, Piper announced that it had received 180 pre-orders. An entry-into-service date of early 2010 was initially anticipated, later changed to 2011-12. In October 2009 the company indicated that it had delayed the delivery of the first customer aircraft to mid-2013 and had informed depositors.
The PiperJet did not enter production and in October 2010 Piper announced it would instead develop an aircraft with a larger circular-section fuselage known as the Piper PiperJet Altaire. The 160 customers who had placed orders for the PiperJet retained their delivery positions with the new aircraft and at the same $2.2 million price.
Based on the PA-47 PiperJet prototype, the Altaire featured a slightly larger fuselage with a rounded cross-section, and included a conventional control yoke for flight control, as opposed to the original PiperJet's side-stick.
Piper had been tooling up its facilities in Vero Beach, Florida (USA) to build four Altaire prototypes to be used for FAA (safety & performance) certification of the aircraft through 2013. First delivery of aircraft to customers was scheduled for 2014. The first flight was expected in 2012.
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Piper PA-47 PiperJet AI simulator
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Piper PA-47 PiperJet
The Piper PA-47 "PiperJet" was a single-engined very light jet (VLJ) that was intended to be developed and built by Piper Aircraft. However, following a change of ownership at Piper, it was decided to redesign the aircraft as the PiperJet Altaire. Despite being technically successful, the Altaire project was canceled in October 2011 due to economic conditions. The aircraft is the first proposed single-engined civilian aircraft with a podded engine located on the tail.
The PiperJet was announced in October 2006, as a competitor to the twin-engined Eclipse 500 and Cessna Citation Mustang. The aircraft's fuselage was the same cross section as the propeller-driven Piper PA-46 series, with a 4 feet (1.2 m) increase in length. It was to be capable of carrying up to 7 passengers and cruise at 360 knots (666.7 km/h), at a maximum altitude of 35,000 feet (10,668.0 m). Maximum range was expected to be 1,300 nautical miles (2,407.6 km), with a full-fuel payload of 800 pounds. Piper selected Williams International to supply its FJ44-3AP turbofan engine for the PiperJet.
Due to the engine being mounted above the center of gravity, power was highly stabilizing (addition of power would push the nose down), which could have been disconcerting to pilots. Initially, Piper designers incorporated an automatic pitch trim system to coordinate horizontal stabilizer angle of incidence with power setting. This system was later replaced by a vectored thrust nozzle, developed by Williams International, which resulted in reduced weight and simplified manufacturing processes.
A design feature of the aircraft was the use of a straight duct air intake design for the vertical stabilizer (tail) mounted engine, similar in engineering design concept to a McDonnell Douglas DC-10, rather than the s-duct arrangement of most trijet aircraft designs such as the Dassault Falcon 900.
A selling price of US$2.199 million in 2006 dollars was initially set and as of February 19, 2007, Piper announced that it had received 180 pre-orders. An entry-into-service date of early 2010 was initially anticipated, later changed to 2011-12. In October 2009 the company indicated that it had delayed the delivery of the first customer aircraft to mid-2013 and had informed depositors.
The PiperJet did not enter production and in October 2010 Piper announced it would instead develop an aircraft with a larger circular-section fuselage known as the Piper PiperJet Altaire. The 160 customers who had placed orders for the PiperJet retained their delivery positions with the new aircraft and at the same $2.2 million price.
Based on the PA-47 PiperJet prototype, the Altaire featured a slightly larger fuselage with a rounded cross-section, and included a conventional control yoke for flight control, as opposed to the original PiperJet's side-stick.
Piper had been tooling up its facilities in Vero Beach, Florida (USA) to build four Altaire prototypes to be used for FAA (safety & performance) certification of the aircraft through 2013. First delivery of aircraft to customers was scheduled for 2014. The first flight was expected in 2012.
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