Cessna Citation family

Cessna Citation I

The Cessna 500 Citation I is a turbofan-powered small-sized business jet that was built by the Cessna Aircraft Company inWichita, Kansas. The Citation line of business jets encompasses several distinct aircraft families, and the Citation I was the basis for the first of those. The Citation I/SP aircraft is another member of this family.

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Cessna Citation II

The Cessna Citation II was the first of the Model 550 series of Citation jets, which are light corporate jet built by Cessna. A direct development of the Citation I, the Citation II led to the later development of the Citation II/SP, the S550 Citation S/II, and the Citation Bravo. The Citation II was also used by the United States Navy under the designation T-47A for radar system training.

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Cessna is an American general aviation aircraft manufacturing company. Its  headquarts is in Wichita, Kansas.  Cessnas main products are small, piston-powered aircraft. Cessna also produces business jets.

Cessna models

Cessna 172 Skyhawk

The Cessna 172 Skyhawk is a four-seat, single-engine, high wing, fixed-wing aircraft.


Avionics.Garmin 1000 (cessna 172S).

Narrow Body, single aisle.
Landing gear.
Type of main Landing gear..
number of main Landing gears.
no of wheels in the L/G..
strut based monoplane.
Wing swept back.
0 degrees.
Maximum operating mac number.
wing tip devices.
Engines attachment.
nose mounted.
Number of engine.
Engine type.
Continental O-300.
Lycoming O-360-A4N.
Control column control column.
Tail Type.
Flight controls.
cables and pulleys (mechanical).

Specifications (172R)

General characteristics

  • Crew: one
  • Capacity: three passengers
  • Length: 27 ft 2 in (8.28 m)
  • Wingspan: 36 ft 1 in (11.00 m)
  • Height: 8 ft 11 in (2.72 m)
  • Wing area: 174 sq ft (16.2 m2)
  • Aspect ratio: 7.32
  • Airfoil: modified NACA 2412
  • Empty weight: 1,691 lb (767 kg)
  • Gross weight: 2,450 lb (1,111 kg)
  • Fuel capacity: 56 US gallons (212 litres)
  • Powerplant: 1 × Lycoming IO-360-L2A four cylinder, horizontally opposed aircraft engine, 160 hp (120 kW)
  • Propellers: 2-bladed metal


  • Cruise speed: 122 kn (140 mph; 226 km/h)
  • Stall speed: 47 kn (54 mph; 87 km/h) (power off, flaps down)
  • Never exceed speed: 163 kn (188 mph; 302 km/h) (IAS)
  • Range: 696 nmi (801 mi; 1,289 km) with 45 minute reserve, 55% power, at 12,000 ft
  • Service ceiling: 13,500 ft (4,100 m)
  • Rate of climb: 721 ft/min (3.66 m/s)
  • Wing loading: 14.1 lb/sq ft (68.6 kg/m2)


  • Optional Garmin G1000 primary flight display

Line replaceable unit LRU

LRU Also known as.

line-replaceable unit (LRU). lower line-replaceable unit(LLRU). line-replaceable component (LRC).line-replaceable item (LRI).


An LRU is an essential support item which is removed and replaced at the field level to restore the end item to an operational ready condition. Conversely, a non-LRU is a part, component, or assembly used in the repair of an LRU / LLRU, when the L.R.U has failed and has been removed from the end item for repair.

An LLRU is part of an LRU, and which can be removed and replaced at the field level to restore its L.R.U to an operational ready condition. As an L.R.U is considered the ‘parent’, the LLRU is considered a ‘child’. An LLRU can also be a child of a child–that is, an LLRU being a component of a higher-level LLRU. However, there is no hierarchy difference between child levels; the only hierarchical separation is parent versus child.

LRU line replaceable unit

L.R.U is a modular component of an airplane,  that is designed to be replaced quickly at an operating location. An L.R.U is usually a sealed unit such as a radio or other auxiliary equipment. L.R.Us are typically assigned logistics control numbers (LCNs) or work unit codes (WUCs) to manage logistics operations.

LRUs improve maintenance operations, because they can be stocked and replaced quickly from on-site inventory, restoring the system to service, while the failed (unserviceable) L.R.U is undergoing maintenance. L.R.U can be exchanged for a replacement part in a relatively short time by only opening and closing fasteners and connectors.