Pratt & Whitney Canada PW600

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The PW600 family of extremely small turbofan engines is being developed by Pratt & Whitney Canada for use in very light jets. Designed with scalability in mind, the engines can produce between 900 lbf and 3,000 lbf (13.34 kN) of Take-off thrust, flat-rated typically to ISA+10C.

First run of the 2500lbf thrust PW625 demonstrator engine was on October 31, 2001.

P&WC began work on the 900 lbf (4 kN) thrust PW610F engine, destined for the Eclipse 500, in 2002. The engine was certified by the Canadian authorities on the 27 July, 2006. With a 14.4 inch (36.58 cm) diameter fan, the PW610F is one of the smallest turbofans to enter production. Driven by a 2-stage LP turbine, the single stage fan is an advanced snubberless design, with wide chord blades integral with the rotor hub. The newly patented HP compressor comprises a diagonal (i.e. mixed) flow stage, supercharging a conventional centrifugal blower, the whole being driven by a single stage HP turbine. A reverse flow combustor and forced mixer/common exhaust are also featured in the design. Dual lane Full Authority Digital Engine Control, for smoother, more reliable, operation, is included in the specification. Hispano-Suiza Canada is currently designing and manufacturing the electronic engine controller (EEC) for this engine. Little is known about the engine cycle, although the bypass ratio is believed to be about 3.0.

The larger, 1350 lbf thrust, PW615F has a 16 inch (40.64 cm) diameter fan and is aimed at the Cessna Citation Mustang. This engine was certified in December 2005. Although the aircraft was certified on 8 September, 2006, deliveries are unlikely until the first quarter 2007.

So far, the 1615 lbf thrust PW617F, with a 17.6 inch (44.7 cm) diameter fan, is the largest in the family and is to power the forthcoming Embraer Phenom 100.

As of October 15, 2006, fifty PW610F's and PW615F's had been delivered.

[edit] Variants

PW600 Engine Family Leading Particulars
	PW610F	PW615F	PW617F	PW625 demonstrator
Take-off Thrust (lbf)	900 (4 kN)	1,350 (6 kN)	1,615 (7.2 kN)	2,500 (11.1 kN)
Flat-rated to:	ISA+10C	<ISA+10C	<ISA+10C	?
Dry Weight (lb)	276	?	?	?
Length (in)	24.84	?	?	?
Fan Diameter (in)	14.4	16.0	17.6	~21.8