Pratt & Whitney JT3D-3B |aircraft investigation|aircraft engine

Aircraft investigation >>>>>>> HOME PAGE

performance calculations for the Pratt & Whitney JT3D-3B aircraft engine

9G-ROX - Boeing 707-328C - Avistar

JT3B-3B as attached to Avistar 9G-ROX 707-328C in 1999

Pratt & Whitney JT3D-3B turbofan engine of 84.51 [KN] (18998 [lbf]) thrust

introduction : 1963 country : US importance : ****

applications : Douglas DC-8-55CF

max. rating (take-off) : 84.51 [KN] (18998 [lbf], 8618 [kgf])

weight engine(s) dry : 2050.0 [kg] = 41.22 [N/kg]

General information :

by-pass ratio : 1.42 : 1

overall pressure ratio (OPR) : 16.0 : 1

rpm HP : 0 [rpm]

axial flow engine

no water injection

LP compressor stages : 8 [ ]

HP compressor stages : 7 [ ]

HP turbine stages : 1 [ ]

LP turbine stages : 3 [ ]

stages : 8 + 7 + 1 + 3

fan diameter : 135.0 [cm] engine diameter : 0.0 [cm]

air mass flow : 230 [kg/s]

design hours : 769 [hr] time between overhaul : 385 [hr]

estimated specific fuel consumption (cruise power) :65.0 [kg/KNh]

economic hours : 22300 [hours] is less then design hours

time between engine failure : 481 [hr]

can continue fly on 3 engines, low risk for emergency landing for PUF

writing off per paskm : 0.017 [eur]

insurance per paskm : 0.0007 [eur]

maintenance cost per paskm : 0.037 [eur]

direct operating cost per paskm : 0.103 [eur]

direct operating cost per tonkm (max. load): 0.397 [eur]

direct operating cost per tonkm (normal useful load): 0.397 [eur]

9G-ROX | Boeing 707-328C | Avistar | Daniel Havlik | JetPhotos

P&W JT3D-3B | aircraft engine | DAS Air | 707-369C | 5X-JON

Das Air 707-369C 5X-JON c/n 20546 , mechanics working on the JT3D-3B engine at Schiphol airport, 1994

Literature :

DISCLAIMER Above calculations are based on published data, they must be

regarded as indication not as facts.

Calculated performance and weight may not correspond with actual weights

and performances and are assumptions for which no responsibility can be taken.

Calculations are as accurate as possible, they can be fine-tuned when more data

is available, you are welcome to give suggestions and additional information

so we can improve our program. For copyright on drawings/photographs/

content please mail to below mail address

notes :