Smithsonian Institution
______________________
Asset Name:
media:NASM-A19900255000cp03

File Usage:

Not determined
There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page at https://www.si.edu/Termsofuse


______________________
Object details:

Object Name: Pratt & Whitney Canada PW123 Turboprop Engine
Smithsonian Record ID: edanmdm:nasm_A19900255000

	Object Name
	Pratt & Whitney Canada PW123 Turboprop Engine

	Metadata Usage
	Not determined

	Guid
	http://n2t.net/ark:/65665/nv90a41ad60-ef61-46dc-a131-020a1c2bb32f

	Data Source
	National Air and Space Museum

	Manufacturer
	Pratt & Whitney Canada (Longueuil, Quebec)

	Materials
	Metal, plastic

	Dimensions
	Overall: 2 ft. 9 in. × 2 ft. 2 in. × 7 ft., 992lb. (83.8 × 66 × 213.4cm, 450kg)

	Dimensions
	Other: 2 ft. 9 in. × 2 ft. 2 in. (83.8 × 66cm)

	Dimensions
	Approximate: 7 ft. (213.4cm)

	Physical Description
	Type: Turboprop, 3 shaft

	Physical Description
	Power rating: 1,775 kw (2,380 shp) at 1,200 rpm

	Physical Description
	Compressor: Single-stage low pressure centrifugal, 1-stage high pressure centrifugal

	Physical Description
	Combustor: Annular reverse flow

	Physical Description
	Turbine: Single-stage axial low pressure, single-stage axial high pressure, 2-stage axial power turbine.

	Physical Description
	Weight: 450 kg (992 lb)

	Summary
	Evolution of the PW100 series of turboprop engines began in the mid-1980s. Designed for increased power and lower fuel consumption in anticipation of larger and faster regional aircraft, the family powers the Aérospatiale/Aeritalia ATR 42 and ATR 72, the British Aerospace ATP, the Bombardier Dash 8 or Q Series, previously known as the de Havilland Canada Dash 8 or DHC-8, the Embraer EMB-120 Brasilia, the Fokker 50, and other regional aircraft around the world.

	Summary
	The PW123's free or power turbine allows the propeller to operate at speeds that help reduce propeller noise on the ground and in flight. The compressors can operate at their optimum design point for each flight condition, while the propeller speed is independently controlled for maximum efficiency.

	Summary
	The type of PW123 engine exhibited here is used on the de Havilland Dash 8 Series 300, and was manufactured by Pratt & Whitney Canada in Longueuil, Quebec.

	Country of Origin
	Canada

	Credit Line
	Gift of Pratt & Whitney Canada, Inc.

	Inventory Number
	A19900255000

	Date
	1987

	Type
	PROPULSION-Turbines (Jet)

______________________