Bell 47

Updated: October 2026 – A small helicopter clatters across the airfield, the cabin is a single round glass bubble, an open engine sits behind it, and the tail is nothing but delicate tubes: that is a Bell 47. In 1946 the type became the first helicopter certified for civil operation in the US, and it remains one of the best-known flying machines of all time. Here you will learn how this classic came about, which versions exist, how to tell them apart and where you can still get airworthy examples in front of your lens.

What is the Bell 47?

The Bell 47 is a light piston-engine helicopter with a two-blade main rotor. Depending on the version, it seats two to four people, and the engine comes from Franklin or Lycoming and delivers between roughly 175 and 305 hp. It was built from 1946 to 1974, with more than 5,600 produced in total. That made it the standard light helicopter of the Western world for decades.

The best-known version is the 47G. In the turbocharged 47G-3B, the main rotor measures a good eleven meters and the maximum takeoff weight is around 1.3 tonnes. With a cruising speed around 135 km/h and a range of about 400 kilometers, it is no sprinter – but it is rugged, simply built and has been flown by generations of pilots.

It owes its place in aviation history to a single date: on March 8, 1946, the Bell 47 became the first helicopter in the US to be certified for civil use. The first aircraft to a civil customer went to Helicopter Air Transport on December 31, 1946.

History: from Arthur Young’s model to worldwide success

Behind the Bell 47 stands the inventor Arthur M. Young. He had started out experimenting with model helicopters and persuaded Bell Aircraft to build a manned test aircraft. The result was the Bell Model 30, which first flew in June 1943. From the third Model 30 prototype, Bell developed the Bell 47, whose first flight took place on December 8, 1945.

After certification in March 1946, the type went into series production. The US armed forces ordered it early on: the Army designated it the H-13 Sioux, the Navy the HTL. The 47B was the first civil production version.

The Bell 47 set records early. On May 13, 1949, it reached an altitude of around 5,650 meters. On September 17, 1952, Elton J. Smith flew a 47D-1 nonstop about 1,959 kilometers from Hurst, Texas, to the Bell plant near Niagara Falls in New York State. By common accounts, this distance record for piston-engine helicopters still stands today.

Because demand was high worldwide, Bell granted licenses. Agusta in Italy built the type as the Agusta-Bell AB 47, Westland in Great Britain as the Sioux for the British military, and Kawasaki in Japan from 1952; there it also gave rise to the four-seat development KH-4. Agusta’s helicopter division is now part of Leonardo.

Production ended in 1974. In February 2010, the type certificates passed to Scott’s Helicopter Services in the US, which has supported the type as certificate holder ever since. An announced new turbine version, the 47GT-6, never went into series production according to available information.

The most important versions

Over almost three decades, Bell kept developing the type. For spotters, what matters most is how the versions differ on the outside.

Version	Feature	Note
47B	early civil production version	military models such as the YR-13 and HTL-1 were built in parallel
47D / 47D-1	first versions with a bubble canopy, D-1 with open tube tail and three seats	from 1949, record-setting aircraft of 1952
47G	saddle tanks, Franklin engine with about 200 hp	from 1953, the most-built family
47G-2	Lycoming VO-435	also with the Bundeswehr (German armed forces)
47G-3B	turbocharged Lycoming TVO-435 engine with about 280 hp	more power at altitude and in heat; basis of the British Westland Sioux AH.1 (47G-3B-1)
47G-4 / G-5	more powerful engine / simple utility and agricultural version	late series of the G family
47J Ranger	enclosed cabin for four people, faired tail boom	looks distinctly more “modern”
H-13 Sioux / HTL	military versions	Korea, training, liaison

The 47J Ranger is the odd one out: it has no open glass bubble but an enclosed cabin with room for four people and a faired tail boom. If you only know the bubble canopy as the identifying feature, it is easy to get unsure with this one.

The features that are enough to identify it

Hardly any helicopter is as easy to recognize as the Bell 47 – at least in its classic 47D and 47G versions.

The final confirmation comes from the registration. German helicopters carry D-H, Austrian ones OE-X; how the systems work is explained in the articles on German aircraft registrations and Austrian OE registrations. With the registration you can find out which version you are looking at and how old it is – more in the guide How to find out an aircraft’s age.

In service: Korea, MAS*H and agriculture

The Bell 47 was a workhorse in many roles. With the US Army it flew as the H-13 Sioux in the Korean War for reconnaissance, search and rescue and above all for transporting the wounded. Litters were mounted outside on the skids, so the injured lay in the open next to the cabin. The image stuck – the TV series MAS*H made the H-13 world famous as the field hospital helicopter.

Civilians flew the Bell 47 for agriculture and crop spraying, for surveying, power line construction and training. Many helicopter pilots of the postwar decades learned to fly on it. If you are interested in the path to the cockpit, the article Becoming a helicopter pilot gives an overview of training today.

Pop culture loved the type, too. ABBA’s 1976 album Arrival shows the four band members in the bubble of a Bell 47, and in the 1968 war film Where Eagles Dare, a Bell 47 lands at the castle – filmed at Hohenwerfen Castle near Salzburg.

Bell 47 in Germany, Austria and Switzerland

In the German-speaking region, the Bell 47 has left clear traces.

Germany: The Bundeswehr flew a total of 45 Bell 47G-2s, or Italian-built Agusta-Bell AB 47G-2s, until the mid-1970s. How Bundeswehr aircraft are marked is explained in the article on Bundeswehr military registrations. In civil use, Bell 47s flew with aerial work companies, among others.

Austria: The Bundesheer used several variants, including 17 H-13Hs, nine Agusta-Bell AB 47Gs and one Bell 47G.

Switzerland: For Rega, a donated Bell 47J was the first helicopter of its own in 1957 – the beginning of the Swiss air rescue service that is so well known today.

Where to see airworthy and displayed examples

In everyday life, a Bell 47 is a real rarity. Many aircraft are in private hands and still fly, and in the US the surviving fleet is still comparatively large. In Europe, your best chances are vintage fly-ins, airshows and museums.

The best-known Bell 47 belongs to the Flying Bulls: a restored, airworthy 47 G-3B-1 built in 1966 with the registration OE-XDM, converted to the Soloy configuration with a turbine instead of a piston engine. It stands in Hangar-7 in Salzburg and, according to the Flying Bulls, is the same helicopter seen in Where Eagles Dare. From the spot at Hangar-7 at Salzburg Airport you have the fleet in view.

Place	Chance of a sighting	Why
Hangar-7 / Salzburg Airport	high (on the ground)	airworthy Bell 47 G-3B-1 of the Flying Bulls, OE-XDM
Helicopter Museum Bückeburg	certain (on the ground)	Bell 47G-2 on display
Flugausstellung Hermeskeil	certain (on the ground)	Bell 47 in the large helicopter collection
Volandia near Milan Malpensa	certain (on the ground)	Bell 47 in the helicopter section
Vintage fly-ins	medium	private owners show their Bell 47s in flight
Normal airport operations	very low	at most ferry flights of individual private aircraft

The Helicopter Museum Bückeburg has a Bell 47G-2 on display, exactly the version the Bundeswehr flew. At the Flugausstellung Hermeskeil, the Bell 47 with its bubble canopy is part of the extensive helicopter collection. In Italy, Volandia at the Volandia spotting position at Milan Malpensa Airport shows the history of Italian helicopter building, which includes the licensed Bells.

You are most likely to catch a Bell 47 in flight at vintage events. A good address for historic aircraft in the air is the Hahnweide vintage aircraft fly-in; the overview Airshows in Europe for plane spotters helps in general. Which aircraft actually fly at an event is only clear from the current program.

Bell 47, Bell 206 or Robinson R22?

With small two-blade helicopters, mix-ups are possible. The finder helps you narrow it down.

The Bell 206 JetRanger replaced the Bell 47 in many roles, and the Robinson R22 later took its place as the affordable piston-engine training helicopter. In military service, too, Bell moved on to turbines: the UH-1 “Huey” became the symbol of the Vietnam War, just as the H-13 had stood for Korea before. For a broader overview, see the guide Identifying helicopter types.

Photo tips specifically for the Bell 47

The Bell 47 is an incredibly photogenic subject: through the bubble you see the pilot, through the tube tail the sky. A few points help.

The shutter speed technique is the same as for propeller aircraft; you will find details in Photographing propellers: the right shutter speed. For airshows, the guide Photographing airshows helps, and the basics of rotary-wing aircraft are covered in Helicopter spotting. If you want to identify vintage aircraft more confidently in general, read Recognizing vintage aircraft in the sky.

Common mix-ups and how to rule them out

You can gauge how rare your sighting really is with the article How rare is my sighting? – a flying Bell 47 in Europe reliably ranks near the top.

Conclusion

The Bell 47 is the helicopter with which civil rotary-wing aviation began in the US. The bubble canopy, tube tail and open piston engine make it unmistakable, and its history reaches from the record flight, through Korea and MAS*H, to Rega’s first aircraft. Today it flies only with enthusiasts – which makes it all the more exciting when you catch one in the air.