Identifying cargo aircraft: how to tell every freighter at the fence

A dark fuselage rolls out of the evening twilight toward the runway, not a single row of windows, just a small door at the very front and a few cockpit panes. A yellow twinjet follows behind, then a jumbo with a strikingly short hump. Anyone standing at a cargo hub in the evening sees a different kind of aviation than at the terminal during the day. Identifying cargo aircraft is easier than it looks: a few features on the fuselage tell you whether a freighter is in front of you, whether it was built that way at the factory or converted and which type it is. This guide shows you where to look.

Identifying cargo aircraft: the short answer

You recognize a cargo aircraft in three places on the fuselage: the missing or closed-off row of windows, a large main deck cargo door on the left side and type-specific details such as a nose door that swings up. Then you ask two questions: is the fuselage smooth, or do you see window outlines? And where is the door – ahead of or behind the wing? With those answers you separate factory freighters from conversions. You then determine the exact type like with any other aircraft, from the engines, landing gear and wingtips, as described in the guide Identifying aircraft types.

Important to know: a large part of air cargo does not travel in freighters at all, but in the belly hold of passenger aircraft. You cannot see this so-called belly cargo from the outside. This article is about the aircraft that carry only cargo – the all-cargo aircraft.

The three basic features of every freighter

The row of windows

The fastest feature. A factory freighter has no windows at all on the main deck; only in the cockpit area are there doors and occasionally a few windows for crew and accompanying staff. On a converted freighter, the windows were closed off. Depending on the conversion and livery, you can still see them: as a fine frame outline in the skin, as a slightly different color or, in raking light, as a row of small dents. That is exactly your clue that passengers once sat here.

The main deck cargo door

Pallets and containers come aboard through a large, upward-swinging door that almost always sits on the left side of the fuselage. It is clearly wider and taller than any passenger door and easy to recognize by its outline. The position is a strong indicator:

• Ahead of the wing: typical for most conversions, such as the A330-P2F, 767 and 737 freighters, and also for the A300-600F, 757 freighters and the MD-11F.
• Behind the wing: typical for the factory-new Boeing 777F and the 747 freighters.

Type-specific special parts

Some freighters have features that the passenger version does not have at all: the nose door that swings up on the jumbo factory freighters, the bump under the nose of the A330-200F or the rear ramp of heavy-lift freighters. More on that later.

Factory freighter or conversion?

Almost all freighters in scheduled operation are based on passenger aircraft. The difference is whether the manufacturer built them as freighters from the start or whether a used passenger jet was converted later. The abbreviations help with sorting:

Abbreviation	Meaning	Example	How you see it
F	Factory freighter	777F, 747-8F, A330-200F	smooth fuselage with no window outlines
ERF	Factory freighter with higher takeoff weight	747-400ERF	like the 747-400F: short hump, nose door
P2F	Passenger to Freighter, conversion	A330-300P2F, A321P2F	door forward left, window outlines possible
BCF	Boeing Converted Freighter	747-400BCF, 737-800BCF	conversion under the Boeing program
BDSF	Conversion by Israel Aerospace Industries	747-400BDSF	like BCF: long upper deck on the jumbo
SF / PCF	Special Freighter / Precision Converted Freighter	757-200SF, 757-200PCF	conversion, door forward left

Conversions are economically attractive because used passenger jets are cheap to get. That is why you now see many types as freighters that are slowly disappearing from passenger service – such as the Boeing 757-200 or the Boeing 767-300ER. And types such as the Boeing 737-800 or the Airbus A321 now show up as freighters too.

The most important freighters at a glance

Type	ICAO code	Engines	Key freighter feature	Typical operators (selection)
Boeing 777F	B77L	2	six-wheel gear, no windows, door behind the wing	Lufthansa Cargo, AeroLogic
Boeing 747-8F	B748	4	short hump, raked wingtips, chevrons	Cargolux, UPS, Atlas Air
Boeing 747-400F/ERF	B744	4	short hump, winglets, nose door	Cargolux, Martinair
McDonnell Douglas MD-11F	MD11	3	engine in the tail, winglets, door forward left	FedEx, Western Global
Airbus A300-600F	A306	2	compact widebody fuselage, wingtip fences	European Air Transport, FedEx
Airbus A330-200F	A332	2	bump under the nose	European Air Transport
Boeing 767-300F/BCF	B763	2	slender widebody fuselage, door forward left	FedEx, Atlas Air, conversion operators
Boeing 757-200 freighter	B752	2	tall landing gear, long slender fuselage	European Air Transport, UPS, FedEx

Boeing 777F

The 777F is the most important long-haul freighter of our time. It is based on the 777-200LR and has its fuselage length, the huge GE90 engines and the main landing gear with six wheels per leg. Difference from the passenger version: not a single main deck window and the cargo door on the left behind the wing. In Germany, Lufthansa Cargo out of Frankfurt and AeroLogic out of Leipzig/Halle operate their own 777F fleets. You recognize converted 777-300ER freighters by the longer fuselage and the door ahead of the wing.

The 747 freighters

On the jumbo, the hump decides. The freighters built at the factory – the 747-400F and 747-400ERF as well as the 747-8F – have a short upper deck like the early 747s. That leaves the nose free, which can be swung up for loading. Long items such as pipes or rotor blades fit into the fuselage from the front this way. Converted 747-400s keep the passenger version’s long upper deck, have no nose door and load only through the side door at the rear left.

You tell the 747-8F and 747-400F apart as you do the passenger versions: the -8F has raked wingtips without winglets, serrated engine trailing edges and a visibly longer fuselage. The -400F has upswept winglets. Cargolux flies exclusively 747 freighters of both generations, UPS operates a large 747-8F fleet and Atlas Air took delivery of the last 747 ever built in 2023. More on the jumbo’s history is in History of the Boeing 747.

McDonnell Douglas MD-11F

Three engines, one of them in the middle of the vertical stabilizer, plus winglets and a strikingly small horizontal stabilizer: the MD-11 is unmistakable. As a freighter, it has no row of windows and a large door forward left. After the crash of a UPS freighter in November 2025, the type was grounded worldwide; since May 2026, aircraft have been flying again at FedEx and Western Global, while UPS has retired the MD-11. As of October 2026, every MD-11 is a real opportunity.

Airbus A300-600F and A330 freighters

The A300-600 lives on today almost only as a freighter. You recognize it by its compact widebody fuselage, the classic round Airbus nose and the small triangular wingtip fences. The backbone of the fleet of European Air Transport Leipzig, DHL’s own airline, consists of this type.

On the A330-200F, you look for a detail that no passenger A330 has: a distinct bump under the nose. It houses the nose gear, which is mounted differently on the freighter so that the main deck sits as level as possible on the ground. The converted A330-300 as a P2F does not have this bump, but is longer and carries its door forward left.

Small and unusual freighters

Not every freighter is a widebody jet. On feeder routes, converted narrowbodies and turboprops fly; the ATR 72-600 even exists as a factory-new freighter version, the 72-600F. At the other end of the scale are heavy-lift freighters such as the Antonov An-124 with its swing-up nose and rear ramp – Antonov Airlines has flown it out of Leipzig/Halle since 2022 – as well as company aircraft such as the Airbus BelugaXL. You recognize such exotics immediately – which other giants are out there is shown in the article The largest aircraft in the world.

Identification path at the fence

Here is how to proceed when an unknown freighter taxis toward you:

For step 5, the guide Understanding aircraft registrations helps you. Freighters often carry registrations from countries you see less often otherwise – the prefixes are explained in Country codes on aircraft.

Recognizing cargo airlines: livery, code, callsign

Because freighters mostly share their ICAO type code with the passenger version, the operator is often the fastest route to certainty. In tracking services and on the radio, you encounter the airlines’ ICAO codes and callsigns:

Airline	ICAO code	Callsign	Home base and fleet (selection)
Lufthansa Cargo	GEC	LUFTHANSA CARGO	Frankfurt, Boeing 777F
AeroLogic	BOX	GERMAN CARGO	Leipzig/Halle, Boeing 777F
European Air Transport Leipzig	BCS	POSTMAN	Leipzig/Halle, A300-600F, A330 freighters, 757
Cargolux	CLX	CARGOLUX	Luxembourg, 747-400F and 747-8F
UPS Airlines	UPS	UPS	Cologne/Bonn as European hub, including 747-8F
FedEx Express	FDX	FEDEX	Cologne/Bonn, including 777F, 767F, MD-11F
Martinair	MPH	MARTINAIR	Amsterdam Schiphol, 747-400 freighters
Atlas Air	GTI	GIANT	Charter and ACMI flights, 747 and 777 freighters

Two pitfalls: DHL yellow is worn not only by European Air Transport aircraft but also by partners such as AeroLogic. And Atlas Air often flies on behalf of other companies, sometimes in their colors. Why callsign and flight number differ is explained in Callsign and flight number, and the codes themselves in IATA and ICAO codes explained. How such flights on behalf of others work is covered in Wet lease explained.

Where and when you see freighters

Freighters fly to the rhythm of their networks, and for express services that rhythm is geared to the night: collect in the evening, sort at night, deliver in the morning. This gives three focal points in Germany:

• Leipzig/Halle Airport: DHL hub with European Air Transport and AeroLogic, plus heavy-lift charters. The observation deck has been temporarily closed since August 2026, as spotters confirmed in mid-October – check the status and the legal alternatives on the Leipzig/Halle spot page before you travel.
• Cologne/Bonn Airport: UPS’s European hub and an important FedEx location. From the Cologne/Bonn observation deck, you have the apron and the main runway in view.
• Frankfurt Airport: Home of Lufthansa Cargo and destination of many international cargo airlines. With a west wind, a large part of the traffic lands past the Zeppelinheim viewing platform.

Which airports operate at night and which do not is summarized in the article Night flight bans at German airports. If you use the evening hours, you benefit from the long daylight in the summer months; for the time after that, the tips in Photographing aircraft at night help. Which side of the runway is currently in use, you clarify with Understanding the runway direction in use.

For charter flights, only a look at the live map helps. How to filter arrivals by type code or operator is shown in Flight tracking with ADS-B.

Common mistakes when identifying freighters

• Windowless does not automatically mean freighter. Military transports, government and test aircraft can also have hardly any windows. Also look at the cargo door and the operator.
• Confusing livery with type. Several types and operators fly in DHL or UPS design. The color says who the flight is for, not what is flying.
• Mixing up 747 factory freighters and conversions. Look at the length of the hump – the long upper deck gives away the converted former passenger jet.
• Mixing up A330 versions. The bump under the nose belongs to the A330-200F, not the converted A330-300P2F.
• Trusting the type code blindly. B77L can be a 777F or a 777-200LR, B744 a passenger jumbo or a freighter.

Conclusion

You recognize cargo aircraft with little effort if you stick to the right order: first windows, then engines and landing gear, then door and hump. The fuselage tells you whether a freighter came about at the factory or through conversion, and the operator makes the identification unambiguous where the type code is silent. You catch most freighters at the hubs of Leipzig/Halle, Cologne/Bonn and Frankfurt – best on a long summer evening.