Learjet 23

what is it?

The Learjet 23 (originally Lear Jet 23) is an American six-to-eight-seat (two crew and four to six passengers) twinjet, high-speed business jet manufactured by Learjet. Introduced in 1964, it was Learjet's first model and created a new market for fast and efficient small business aircraft. Production ended in 1966 after 101 aircraft had been delivered.

🔎How to recognise it: 2 jet engines · 10.8 m wingspan

base stats

• speed 903 km/htop speed
• seats 6passengers
• size 5,670 kgmax take-off weight
• built 101made in total

Bars compare against all aircraft: 3,500 km/h, 20,000 km, 850 seats; size and number built on a log scale up to 640 t (An-225) and 45,000 built (Cessna 172).

fun facts

• 🎂First flew 63 years ago, in 1963.
• 🏎️Top speed is 6.9× a car on the Dutch motorway (130 km/h).
• 🚗Wingspan of 10.8 m: about 2 cars parked nose to tail.
• 🏔️Can fly 1.6× higher than Mount Everest (8,849 m).

jet: Gas turbine pushing air out the back (turbofan or turbojet): fast and high-flying.

spec sheet

first flight

1963-10-07

introduced

1963

retired

2008

status

retired

number built

101

role

business jet

origin

🇨🇦 Canada

makers

Learjet

engines

2× General Electric CJ610-4

passengers

6

length

13.2 m

wingspan

10.8 m

height

3.8 m

max take-off weight

5,670 kg

top speed

903 km/h

cruise speed

833 km/h

range

—

ceiling

13,716 m

Specs are for the version in the Wikipedia article's specification section. Blank means the sources don't say.