3. Introduction
The CASA/IPTN CN-235 is a medium-range twin-engined transport
plane that was jointly developed by CASA of Spain and
Indonesian manufacturer IPTN, as a regional airliner and military transport.
The maritime patrol variant is in service with: Spain, Ireland and Turkey
(manufactured by EADS CASA) and Indonesia, Brunei and UAE
(manufactured by Dirgantara).
Its primary military roles include maritime patrol, surveillance, and air
transport.
Its largest user is Turkey which has 50 aircraft.
4.
5. Variants
CN-235-10: Initial production version (15 built by each company), with GE CT7-7A engines.
CN-235-100/110: Generally as series 10, but with GE CT7-9C engines in new composites nacelles;
replaced Series 10 in 1988 from 31st production aircraft. Series 100 is Spanish-built, series 110
Indonesian-built, with improved electrical, warning and environmental systems.
CN-235-200/220: Structural reinforcements to cater for higher operating weights, aerodynamic
improvements to wing leading-edges and rudder, reduced field length requirements and much-
increased range with maximum payload. Series 200 is Spanish-built, Series 220 Indonesian-built.
CN-235-300: CASA Modification of 200/220 series, with the Honeywell International Corp. avionics
suite. Other features include improved pressurization and provision for optional twin-nose wheel
installation.
CN-235 MPA: Maritime patrol version with 6 hardpoints to carry AM-39 Exocet-Missiles or Mk.46-
Torpedos.
6.
7. Design
Two General Electric CT&-9C3 turboprop engines each developing 1,305kW, are
wing-mounted in composite nacelles.
The engines produce 1,394kW with automatic power reserve.
The engines drive Hamilton Sundstrand 14RF-21 four-bladed, constant speed, full
feathering, reverse pitch propellers, diameter 3.35m.
The propellers are of glass fibre construction with a metal spar and urethane foam
core.
The aircraft is equipped with a Trimble TNL7900 Omega global positioning system
and a Northrop Grumman (formerly Litton) LN92 ring laser gyroscope inertial
navigation system.
8.
9. Specifications
General characteristics
Capacity: 51 passengers, 35 paratroops, 18 stretchers or four HCU-6/E
Payload: 6,000 kg (13,100 lb)
Length: 21.40 m (70 ft 21⁄2 in)
Wingspan: 25.81 m (84 ft 8 in)
Height: 8.18 m (26 ft 10 in)
Wing area: 59.10 m2 (636.1 sq ft)
Empty weight: 9,800 kg (21,605 lb)
Max. takeoff weight: 15,100 kg (33,289 lb)
Performance
Cruise speed: 450 km/h (248 knots, 286 mph) at 4,575 m (15,000 ft)
Stall speed: 156 km/h (84 knots, 97 mph) (flaps down)
Range: 4,355 km (2,350 nmi, 2,706 mi)
Service ceiling: 7,620 m (25,000 ft)
Rate of climb: 7.8 m/s (1,780 ft/min)
