The Cessna Citation II PH-LAB is one of the research aircraft operated Faculty of Aerospace Engineering. It is owned and operated jointly with the National Aerospace Laboratory. Originally designed for executive travel, this Citation has been extensively modified by Delft University of Technology and NLR to serve as a versatile airborne research platform.

Type of aircraft

The Citation II is a twin jet aircraft of conventional aluminium construction. Its two Pratt & Whitney JT15D-4 turbofan engines enable a maximum operating altitude of more than 13 km (43,000 ft) and a maximum cruising speed of 710 km/h (385 KTAS) to be attained. The flight envelope allows a wide range of operations to be performed. Experience has shown that researchers highly appreciate the Citation’s distinct capability to fly at quite low speeds. The Citation features a 10.7 m3 pressurized cabin that may be accessed through a 1.3 m x 0.6 m door. It can accommodate a maximum of eight observers in addition to the two-pilot cockpit crew.




maximum payload (crew + equipment) 3,100 lbs
maximum fuel loading 5,000 lbs
range (max. payload) 600 nm
(max. fuel, 1,200 lbs payload) 1,600 nm
endurance (max. payload) 2h30min
(max. fuel, 1,200 lbs payload) 5h30min
take-off distance (MTOW) 3450 ft
landing distance (MLW) 2450 ft
rate of climb (MTOW) 2,900 fpm
maximum speed (sea level to 30,500 ft) 262 KIAS
(above 30,500 ft) Mach 0.705
maximum operating altitude 43,000 ft
cabin altitude at maximum operating altitude 8,000 ft
stall speed (MLW, landing configuration) 84 KIAS




Length 47.3 ft
Wing span 52.2 ft
Cabin volume 378 ft3
Cabin door 3.9 ft x 1.7 ft
Cabin hatch 3.1 ft x 1.9 ft
Number of cabin seats max. 8


maximum payload (crew + equipment) 1,400 kg
maximum fuel loading 2,250 kg
range (1,400 kg payload) 1,100 km
(2,250 kg fuel, 550 kg payload) 3,000 km
endurance (1,400 kg payload) 2h30min
(2,250 kg fuel, 550 kg payload) 5h30min
take-off distance (MTOW) 1,050 m
landing distance (MLW) 745 m
rate of climb (MTOW) 14.7 m/s
maximum speed (sea level to 9,300 m) 484 km/h IAS
(above 9,300 m) Mach 0.705
maximum operating altitude 13 km
cabin altitude at maximum operating altitude 2,400 m
stall speed (MLW, landing configuration) 156 km/h IAS




Length 14.4 m
Wing span 15.9 m
Cabin volume 10.7 m3
Cabin door 1.18 m x 0.53 m
Cabin hatch 0.95 m x 0.57 m
Number of cabin seats max. 8
The above performance figures assume sea level in Standard Atmosphere and 1 hr reserve fuel. IAS stands for ‘indicated airspeed’. True airspeed is not specified since it varies with altitude, pressure and temperature.
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