Cessna Citation I
The Cessna 500 Citation I is a small business jet announced by Cessna in October 1968 and is the basis of the Citation family. The Fanjet 500 prototype first flew on September 15, 1969 and it was certified as the Citation on September 9, 1971, upgraded in 1976 as the Citation I and a single pilot variant, production ended in 1985 after 689 deliveries. Powered by JT15D turbofans, the straight wing aircraft was developed into the Citation II/Bravo.
|Citation I / I/SP|
|National origin||United States|
|First flight||September 15, 1969 (FanJet 500)|
|Number built||689, 688 delivered|
|Variants||Cessna Citation II|
In October 1968 Cessna announced an eight place business jet capable of operating from light/medium twins airfields. The Fanjet 500 prototype first flew on September 15, 1969. The renamed Citation had a relatively long development program with a longer forward fuselage, repositioned engine nacelles, a larger tail and more dihedral to the horizontal tail. It was FAA certified on September 9, 1971.
In early 1976, its wing span grew from 43.9 to 47.1 ft (13.4 to 14.4 m). It also gained thrust reversers and higher gross weights. The enhanced Citation I was introduced later in 1976 with higher weights, JT15D-1A engines and an increased span wing. The 501 Citation I/SP, certificated for single pilot operations, was delivered in early 1977. Production ended in 1985, it was developed into the Citation II/Bravo and the Citation V/Ultra/Encore. Over 690 Citations, Citation Is and I/SPs were built between 1971 and 1985.
The aircraft was powered by two Pratt & Whitney Canada JT15D-1 turbofan engines after Cessna's experience with the T-37 Tweet twinjet trainer. Turbofan rather than turbojets and straight wings rather than swept wings made it cruise slowly compared to other business jets and Learjet salesmen mocked it as the “Nearjet” vulnerable to “bird strikes from the rear”; Cessna renamed it the “Citation” after the thoroughbred but it was nicknamed as “Slowtation”.
A Citation I/SP operated for Trans Europe Air Charter crashed on approach to Stornoway Airport killing all 10 passengers and crew.
Specifications (Cessna Citation I)
- Crew: Two (One pilot on I/SP)
- Capacity: 5 passengers
- Length: 43 ft 6 in (13.26 m)
- Wingspan: 47 ft 1 in (14.35 m)
- Height: 14 ft 4 in (4.37 m)
- Wing area: 278.5 sq ft (25.87 m2)
- Aspect ratio: 7.83:1
- Empty weight: 6,631 lb (3,008 kg)
- Max takeoff weight: 11,850 lb (5,375 kg)
- Fuel capacity: 564 US gal (470 imp gal; 2,130 L) usable fuel
- Powerplant: 2 × Pratt & Whitney Canada JT15D-1B turbofans, 2,200 lbf (9.8 kN) thrust each
Performance(above 28,000 ft (8,500 m)
- Maximum speed: Mach 0.705
- Cruise speed: 357 kn (411 mph, 661 km/h) at 35,000 ft (11,000 m)
- Stall speed: 82 kn (94 mph, 152 km/h) (CAS)
- Range: 1,328 nmi (1,528 mi, 2,459 km) at 41,000 ft (12,000 m) (45 min reserves, 1,562 lb (709 kg) payload)
- Service ceiling: 41,000 ft (12,000 m)
- Rate of climb: 2,719 ft/min (13.81 m/s)
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