Junkers G 31

what is it?

The Junkers G 31 was an advanced tri-motor airliner designed and produced by the German aircraft manufacturer Junkers. It would be the first airliner operated by Deutsche Luft Hansa to feature a flight attendant. Development of the G 31 took place during the mid 1920s, having been encouraged by the positive reception of the Junkers G 24, a more compact tri-motor airliner.

🔎How to recognise it: 3 engines · low wing · fixed tailwheel (taildragger) · 30.5 m wingspan

base stats

• speed 210 km/htop speed
• range 850 kmwithout refuelling
• seats 15passengers
• size 8,500 kgmax take-off weight
• built 13made 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 100 years ago, in 1926.
• 🏎️Top speed is 1.6× a car on the Dutch motorway (130 km/h).
• 🚗Wingspan of 30.5 m: about 7 cars parked nose to tail.

spec sheet

first flight

1926-09-14

number built

13

role

airliner

origin

🇩🇪 Germany

makers

Junkers

engines

3× BMW-built Pratt & Whitney Hornet

passengers

15

length

16.5 m

wingspan

30.5 m

height

6 m

max take-off weight

8,500 kg

top speed

210 km/h

cruise speed

170 km/h

range

850 km

ceiling

4,400 m

wings

low wing

landing gear

fixed conventional landing gear

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