Shorts 330

Updated: October 2026 – An aircraft that looks as if someone had fitted a freight container with wings: anyone seeing a Shorts 330 for the first time can hardly believe that scheduled passengers once flew in it. But that was exactly its job. From the mid-1970s the angular turboprop from Belfast connected islands, provincial cities and regional airports, flew for the US military under the name C-23 Sherpa and is now a case for spotters who deliberately collect rarities. Here you learn how to identify the 330 with confidence, how it differs from the Shorts 360 and Skyvan and where you can still get one in front of your lens at all.

What is the Shorts 330?

The Shorts 330 – officially the Short SD3-30 – is a twin-engine regional turboprop for up to 30 passengers. It was built by Short Brothers in Belfast, one of the oldest aircraft manufacturers in the world. The idea behind it was pragmatic: instead of developing a completely new regional aircraft, the engineers stretched the proven Shorts Skyvan, a small utility aircraft with a boxy cargo hold. Fuselage and wingspan grew, the fixed landing gear gave way to retractable gear, and the rustic transporter became a commuter aircraft for regional airlines.

The first flight took place on August 22, 1974. In 1976 the Canadian regional airline Time Air was the first to put the type into service. By the end of production in 1992, 141 aircraft had been built, of which 68 were the original 330-100 and 73 the more powerful 330-200 – cargo and military versions included. The concept later gave rise to the larger Shorts 360, which flew from 1981 and replaced the 330 in many fleets.

Short Brothers itself has belonged to Bombardier since 1989; in 2020 Spirit AeroSystems took over the Belfast plants. Aircraft of the Shorts family have long since stopped being built there.

One detail that describes the design well: the fuel sits in tanks directly above the cabin ceiling, that is, in the upper fuselage under the wing. That kept the long, slender wing free of large tanks, and the fuselage could keep its rectangular cross-section.

The features that are enough to identify it

The 330 is one of the few aircraft you can recognize by silhouette alone, even against a gray sky. Three observations are enough.

Add the two Pratt & Whitney Canada PT6A engines with five-blade propellers, which sit far ahead of the wing leading edge, and the landing gear fairings on the sides of the fuselage floor. In the end the registration confirms the type. With military and government aircraft in particular, it is worth a look in a database, because behind the Sherpa designation hide both 330 and 360 airframes.

The variants at a glance

The Shorts 330 family is manageable but has a few branches that matter to spotters – above all because the military versions look different from the airline aircraft.

Variant	Feature	Use
330-100	Original version with PT6A-45A/-45B	Regional airlines, from 1976
330-200	More powerful PT6A-45R, minor improvements	Regional airlines, cargo
Sherpa	Freighter with wide rear ramp, first flight December 23, 1982	Cargo, military
330-UTT	Military transport with reinforced floor and paratroop doors	e.g. Thailand
C-23A Sherpa	Sherpa freighter for the US Air Force	Spare parts service in Europe from 1985
C-23B Sherpa	New-build for the US Army with cabin windows, paratroop doors and two-piece ramp	Army National Guard until 2014

Not part of the 330 in the strict sense is the C-23B+: for it, the US Army converted used Shorts 360s, replacing their tall single tail and fuselage end with the twin tail and ramp of the Sherpa. From the outside a C-23B+ therefore looks very much like a Sherpa even though the forward fuselage comes from the 360. The versions can usually only be told apart reliably by registration or serial number.

The C-23 Sherpa – the 330 in Germany

For spotters in Germany the Sherpa has a special history. In March 1983 the US Air Force ordered 18 aircraft as the C-23A for its European Distribution System Aircraft program. Their job: quickly distribute spare parts and personnel between the US Air Force bases in Europe. From 1985 the fleet was stationed at Zweibrücken Air Base in Rhineland-Palatinate. The boxy freighters thus shuttled through West German airspace for years.

With the end of the Cold War the service ran out in November 1990. The aircraft returned to the US: three went to the Air Force test pilot school, eight to the Army and seven to the US Forest Service.

The US Army meanwhile relied on the Sherpa as a light transport for the National Guard. From 1988 it ordered newly built C-23Bs – 16 in total – and supplemented them with converted Shorts 360s. In January 2014 the Army National Guard retired the type; the Army had already chosen the C-27J Spartan as the successor in 2007. More than a dozen C-23s then went to the US Forest Service, others to civil operators and government agencies. NASA uses a C-23 for research flights from Wallops.

How US military serials are built and what the serial number on the tail tells you is explained in the guide to US military serials. If you want to watch military and government flights live, you will find tips under Tracking military aircraft online. How the Sherpa differs from other transports is shown in the overview Identifying military transports.

Shorts 330, 360 or Skyvan?

Most mix-ups happen within the Shorts family. The finder helps you narrow it down with three observations.

Outside the family, the 330 is sometimes mixed up with other strut-braced or high-wing aircraft. The Dornier Do 228 and the Let L-410 Turbolet are smaller, have a single vertical stabilizer and a rounder fuselage. The DHC-6 Twin Otter does share the strut-braced high wing but has fixed landing gear and also just one fin. Modern regional turboprops like the Saab 340 or the ATR 42-300 have round fuselages without struts. The post Telling turboprops apart offers a good overview of the differences among propeller aircraft.

The 330 in scheduled service – a historical role

The Shorts 330 had its heyday in the late 1970s and the 1980s. It flew with feeder, charter and cargo operators in Canada, the US, Great Britain, Greece, Thailand and Australia; in addition there were air forces and government agencies in several countries. Well-known names include Olympic Aviation in Greece, Bangkok Airways, Air Labrador and Brymon Airways in Great Britain.

Scotland’s Loganair also had the 330 in its fleet: it joined in 1979 and was replaced in 1984 by the larger Shorts 360. This pattern repeated itself with many operators – as soon as more seats were needed, they switched to the 360, later to more modern turboprops like the Saab 340, ATR 42 or Dash 8-100.

The fuselage with its large, rectangular cargo hold made the 330 a willing freighter for this – more on typical cargo types in the guide Identifying freighter aircraft. Former passenger aircraft flew parcels and mail after their scheduled careers, and retired Sherpas joined later. In the US, Air Cargo Carriers of Milwaukee was long one of the best-known operators of the Shorts family; in 2019 its fleet consisted mainly of Shorts 360s, supplemented by a single 330. Whether and which aircraft are still flying there in October 2026 you should check before a trip.

Where to find the Shorts 330 today

In Germany, Austria and Switzerland a flying 330 is practically no longer to be expected today. You have realistic chances elsewhere:

Place	Chance of a hit	Why
Cargo airports in the US	low to medium	Individual freighters of the Shorts family on feeder services
Government fleets in the US	low	Former C-23s with the Forest Service, NASA and other agencies
Museums in Great Britain	certain	Preserved aircraft in Northern Ireland and northern England
DACH region	very low	At most ferry flights or special flights

The surest way to a Shorts 330 leads to a museum. The prototype G-BDBS belongs to the collection of the Ulster Aviation Society in Northern Ireland – fitting, since it was built only a few kilometers away. Another 330, G-OGIL, stands in the North East Land, Sea and Air Museum in Sunderland. How British registrations work and how to look them up in the G-INFO register is covered in the guide to British G registrations.

Retired military and cargo aircraft often end up on storage areas before being scrapped or resold. What you may photograph there and where such places are located is covered in the post on aircraft graveyards and boneyards.

Photo tips specifically for the Shorts 330

The 330 rewards you with a shape that hardly any other aircraft has. A few points help you present it properly.

Because the 330 is now regarded more as a classic, the guide Recognizing vintage aircraft is also worth a look. How to find and track a specific aircraft by its registration is shown in the post Tracking an aircraft by registration.

Common mix-ups and how to rule them out

Conclusion

The Shorts 330 is the opposite of an elegant airliner – and that is exactly why it is so popular among spotters. Boxy fuselage, strut-braced high wing and twin tail make it unmistakable. As the C-23A Sherpa it was even stationed at Zweibrücken in the 1980s. Today the scheduled-service history is over; what remains are individual freighters and government aircraft in North America as well as preserved examples in British museums.