Dassault Falcon 20-5 Specs and Description

Aircraft Description


In 1985, Dassault closed the Falcon 20 production line, offering the Falcon 200 in its place. Some 486 Falcon 20s had been built and most remained in service despite the shortcomings of the General Electric CF700 series powerplants. Conversion specialists at Garrett recognized a market for an engine conversion to their TFE-731. In March 1989, the FAA certified the 731 Falcon 20 which was powered by a pair of TFE-731-5AR turbofans rated at 4,500lbs. of thrust each. Garrett had accomplished a little over 50 of the engine conversions before they switched to the the -5BR engine variant producing 4,750lbs of thrust. Aircraft fitted with the -5BR are designated the 731 Falcon 20B and feature and increase in MTOW of 850lbs. and an improved runway and climb performance. Falcon 20-5 conversion aircraft enjoy almost double the range of the Falcon 20 series aircraft, have a 10% improvement in speed on trips up to 1,445nm and achieve Stage III compliance. Approximately 119 Falcon 20s have been re-engined by Garrett Aviation.


The 731 Falcon 20B is powered by a pair of Allied Signal (Garrett) TFE-731-5BR turbofan engines rated at 4,750lbs. of thrust each. The inspection interval is 4,200 hours.


Most owners opt to replace their Falcon 20’s antiquated analog/mechanical panel while the aircraft is disassembled for the engine conversion. A typical installation will include Collins Pro Line 4 with four-tube EFIS, dual VHF 20, Dual VIR 30, APS 30 autopilot, dual ADF 60, dual DME 40, Universal UNS-1M or Global GNS-X FMS and Sperry Primus 400 color weather radar.

Design Features

The 731 Falcon 20B is a mid-size, medium-range business aircraft configured as a cantilever, swept, low-wing monoplane with a cantilever cruciform tail section. The airframe is of aluminum monocoque construction and has retractable tricycle landing gear with dual wheels on all units. The two powerplants are rear fuselage-mounted. An airstair door is located on the forward port side of the fuselage. An Allied Signal APU and Dee Howard thrust reversers are available as options.


The 731 Falcon 20B is normally configured to seat eight to ten passengers in a double-club arrangement or combination of club, divan and individual seating. The galley is located in the forward cabin and the full-width lavatory occupies the aft cabin. Cabin height is 5.7 ft., width is 6.1 ft. and length is 24.0 ft.

General Falcon 20-5, DA-20B-731
Category Jet < 20,000 lbs.
Years Aircraft Manufactured 1966-1985
Serial Number Range 0024-0486
Retail High Price $3,500,000.00 / 2,746,450.00€
Retail Low Price $2,136,250.00 / 1,676,315.37€
Characteristics Falcon 20-5, DA-20B-731
Seating 2 + 8/10
Wing Loading 65.1
Power Loading 3.2
Noise(EPNdB): Takeoff/Sideline/Approach 81.8 / 90.0
External Dimensions (ft) Falcon 20-5, DA-20B-731
External Length 56.3
External Height 17.6
External Span 53.5
Internal Dimensions (ft) Falcon 20-5, DA-20B-731
Internal Length (Overall/Net Height) 24.0
Internal Height 5.7
Internal Width (Max/Floor) 6.1
Baggage Falcon 20-5, DA-20B-731
External: Cu.Ft./Lb. N/A
External: Cu.Ft./Lb. N/A
Power Falcon 20-5, DA-20B-731
Engines 2 Hon TFE731-5BR
Output (lbs ea.)/Flat Rating 4,750
Inspection Interval 4,200c
Data based on latest manufactured year