2. 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.
3. 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.
4. 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.
5. 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 212 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)