Key takeaways
- The Kbely Aviation Museum opened on October 11, 1968 on the airfield where Czechoslovak military aviation began in 1918.
- It is run by the Military History Institute VHÚ, and admission is free.
- The exhibition is arranged chronologically: First Republic, World War II, first jet generation, Cold War – in several historic halls and in the outdoor area.
- For spotters the Eastern Bloc types are the core: MiG-15 to MiG-29, Il-28, Su-7, Su-22 and the ČSA Tu-104A.
- The season runs roughly from spring to October – check the current hours with VHÚ before you travel.
Contents
- 1.Profile
- 2.Business areas
- 3.Structure & brands
- 4.History at a glance
- 5.What you should know as a spotter
- 6.Strengths and weaknesses
- 7.A museum on historic ground
- 8.How the exhibition is organized
- 9.The ČSA Tu-104A
- 10.Stará Aerovka: the branch in Letňany
- 11.Photography in Kbely
- 12.Getting there, season and visit
- 13.Events and the airworthy collection
- 14.Combining: museum and live traffic in Prague
- 15.Conclusion
- 16.Frequently asked questions
Profile
| Operator | Vojenský historický ústav Praha (VHÚ) – the Military History Institute of the Czech Ministry of Defense |
|---|---|
| Location | Mladoboleslavská, Praha 9 – Kbely, on the grounds of Prague-Kbely military airfield |
| Opening | October 11, 1968 (first exhibition with 62 aircraft, according to Czech Wikipedia) |
| Collection | around 275 aircraft according to VHÚ figures in reference works; according to the Prague tourism portal, 128 aircraft and just under 50 engines are on display |
| Exhibition | several historic hangars plus an outdoor area, arranged chronologically; plus the branch Stará Aerovka in Letňany |
| Highlights | ČSA Tupolev Tu-104A, Avia S-92 and S-199, MiG-15 to MiG-29, Il-28, Soyuz 28 landing capsule |
| Season | Spring to October; according to the Prague tourism portal May to September Tue–Sun 10 a.m.–6 p.m., in October weekends only, last admission 5:30 p.m. – in 2026 the season began as early as April 25, according to VHÚ |
| Admission | free; children under 15 only accompanied by adults |
| Getting there | Metro C to Letňany, then bus to the “Letecké muzeum” stop right at the gate |
| Official website | www.vhu.cz/muzea/letecke-muzeum-kbely |
Business areas
Structure & brands
History at a glance
Prague-Kbely Aviation Museum from a spotter’s point of view
Your checklist for Prague-Kbely Aviation Museum
- The Tu-104A in the outdoor area – jet airliner with a glazed nose and engines hidden in the wing roots
- Historic hangars – wood and steel halls in the Hart, Wagner and Pícha designs from the airfield’s early years
- The MiG-21 at the entrance – according to visitor reports, a MiG-21F-13 stands on a pedestal
- Military operations next door – Kbely is still a military airfield, base of the Czech Air Force’s transport flying
- Stará Aerovka – two former Aero factory halls just under a kilometer away
Strengths and weaknesses
What speaks for it
- Free admission – you can come twice without a guilty conscience
- One of the most extensive collections on Eastern Bloc aviation you can see in Central Europe
- Almost the entire MiG family in one place, complemented by first-generation Western jets
- Rare one-offs like the Avia S-92, the Avia S-199 and the ČSA Tu-104A
- Easy to reach by metro and bus, and easy to combine with a spotting day at Prague Airport
Where it falls short
- Seasonal operation: closed in winter, weekends only in October
- Many halls are densely packed, so full shots of individual aircraft are often difficult
- Without Czech, a little preparation helps you place the exhibits
- The active military airfield next door is not freely accessible and not a spotting spot in the usual sense
- Stará Aerovka is separate, so you have to walk a bit
If you associate Prague only with the Old Town, Charles Bridge and Václav Havel Airport, you are missing one of Central Europe’s most exciting aviation destinations. In the Kbely district, in the northeast of the capital, on an active military airfield, lies the Letecké muzeum Kbely. Here stand the aircraft with which Czechoslovakia built up its air force from 1918, the postwar copies of German types, almost the complete MiG family and, with the ČSA Tupolev Tu-104A, one of the world’s first jet airliners. And all of it with free admission.
Museum aircraft belong in your hangar too
With Planetrack you post sightings with photo, aircraft type, registration and location – including the MiGs and the Tu-104A from Kbely. Planetrack is launching soon – you’ll find the waitlist at the bottom of this page.
A museum on historic ground
Kbely airfield is closely tied to the country’s history. After the founding of Czechoslovakia in 1918, it became the first base of the young air force. Some of the hangars that house the exhibition today date from this early period. According to Czech Wikipedia, for example, a Hart-type hangar was brought from Cheb to Kbely in 1919 – today it is called Janečka Hall.
The name commemorates Colonel Ing. Jaroslav Janečka, to whom the idea for the museum goes back. From the mid-1960s the Prague Military Museum collected historic aircraft, restored them and brought them together in Kbely. After an improvised show in September 1967, the first official exhibition opened on October 11, 1968 – with 62 aircraft in a single hangar. From 1969 it ran as a seasonal permanent exhibition.
The 1990s were difficult: According to Czech Wikipedia, the museum fell into a crisis, and in 1995 the heavy ground equipment was moved to the Military Technical Museum Lešany. A modernization followed in the 2000s, during which several halls were redesigned and reopened: Janečka Hall (Hangar H-88) in 2003, Sýkora Hall in 2004 and Janoušek Hall in 2009. In 2016 the branch Stará Aerovka in Letňany was added.
Today the Prague Military History Institute (Vojenský historický ústav, VHÚ) runs the museum. Depending on the source and how it is counted, different figures circulate for the size of the collection. Reference works speak of around 275 aircraft in total, many of which are in storage or kept airworthy. The Prague tourism portal cites 128 aircraft and just under 50 engines for the permanent exhibition. That makes Kbely one of Europe’s larger aviation museums.
How the exhibition is organized
The exhibition follows time. You start at the beginnings of Czechoslovak military flying and work your way up to the jets of the Cold War. Each hall stands for an era – which makes the tour easy to follow, even if you bring little prior knowledge.
| Hall | Era | Examples according to Czech Wikipedia |
|---|---|---|
| Janečka Hall | Air force 1918–1924 | SPAD S.VII, Letov Š-2 |
| Sýkora Hall | Air force 1925–1938 | Avia B-534, Aero A-10, Aero A-18C |
| Janoušek Hall | World War II | Il-2, La-7, Tiger Moth, Harvard, Me 262B |
| Hall H-17 | First jet generation | Avia S-92, Gloster Meteor F Mk.8, Vampire, Yak-17, T-33 |
| Postwar hall | Postwar period and Cold War | MiGs, domestic trainers, sport and passenger aircraft, Soyuz 28 capsule |
| Outdoor area | Transport and airliners | Tu-104A, DC-3/C-47 and more |
Which aircraft stands where can change because of restorations and rebuilds. The table gives you an orientation, not a guarantee.
The beginnings: the First Republic
The two oldest halls deal with the interwar period. According to Czech Wikipedia, the Letov Š-2 belongs to the first family of combat aircraft designed and built in Czechoslovakia – the only surviving example stands in Kbely – and the Aero A-10 was the first Czechoslovak airliner. One of the stars is the Avia B-534, a biplane fighter of the 1930s that ranks among the best-known aircraft in Czech aviation history.
New in the spotlight since 2026 is the Aero Ab-11. According to VHÚ, this biplane achieved a record long-distance flight of more than 15,000 kilometers in 1926, through 23 countries on three continents. At the start of the 2026 season, the museum presented the restored aircraft.
World War II and the Czech “Germans”
For many visitors, the war and postwar period is the most exciting part. Alongside Soviet types like the Ilyushin Il-2 and the Lavochkin La-7, two special chapters of Czech industry stand here:
- Avia S-92: After the war, Czechoslovakia continued building the Messerschmitt Me 262 from existing parts in small numbers. The S-92 is one of the few surviving examples of these early jet fighters.
- Avia S-199: A descendant of the Bf 109, also built in the postwar period. If you know the original, you will spot the differences in the engine cowling and the propeller.
Add Western types like the de Havilland Tiger Moth and the North American Harvard – Western trainers that open the view beyond the Eastern Bloc.
Me 262 or S-92?
The S-92 looks confusingly like the German original. Pay attention to the signage and the registrations – it is exactly such details that make museum visits good practice for identifying historic aircraft.
The first jet generation
According to Czech Wikipedia, Hall H-17 shows how jet aircraft developed side by side in East and West. Alongside the S-92 stand the Gloster Meteor F Mk.8, the de Havilland Vampire FB Mk.6, the Soviet Yak-17 and the American Lockheed T-33. You rarely see the early jets of both blocs standing so close together.
Cold War: the big postwar hall
The centerpiece for military jet fans is the largest exhibition hall. It was built after 1945 on the site of bombed hangars and, according to Czech Wikipedia, gathers almost 60 aircraft. Here the MiGs stand in a row that you rarely see this complete elsewhere:
- MiG-15 and MiG-17 – the jets of the first postwar years
- MiG-19 – according to visitor reports, the MiG-19PM with air-to-air missiles under the wings
- MiG-21 – the workhorse of the Warsaw Pact air forces
- MiG-23 with swing wings
- MiG-29 – the most modern member of the series in the hall
The row is complemented by the domestic jet trainers L-29 Delfín and L-39 Albatros from Aero Vodochody as well as sport and touring aircraft like the Let L-200 Morava. If you want to train your fighter jet recognition, the article Identifying fighter jets in Europe offers a suitable foundation.
In the same hall the museum also shows the landing capsule of Soyuz 28. In it, Vladimír Remek returned to Earth in 1978 – he was the first space traveler who came from neither the Soviet Union nor the US. According to Czech Wikipedia, his spacesuit is also on display.
Rare types on the wish list
In Planetrack you put types like the L-39 or the MiG-29 on the wish list in your hangar and get a sighting alert when one lands at your airport. The app is launching soon – join the waitlist below.
The ČSA Tu-104A
Outside stands the largest aircraft in the collection: a Tupolev Tu-104A of the Czechoslovak airline ČSA. According to Czech Wikipedia, the Tu-104A was ČSA’s first jet airliner. That put the airline among the early jet operators in Europe in the late 1950s.
The Tu-104 is an emblem of postwar Soviet aviation. It was derived from a bomber, which you can tell by the glazed nose. The two engines sit in the wing roots. Today such aircraft can only be seen in museums. The article on Soviet airliners puts it in the context of the history of Eastern Bloc airliners.
Next to the Tupolev, the outdoor area holds more aircraft, including, according to visitor reports, a DC-3/C-47 in the colors of a transport regiment of the late 1940s. An Ilyushin Il-18 is also part of the collection: VHÚ presented it after a restoration at the start of the 2026 season.
Follow airliner history on site
ČSA flew until 2024. Today Smartwings shapes traffic at Prague Airport. From the museum you can reach the platforms at Prague Airport by public transport in a reasonable time.
Stará Aerovka: the branch in Letňany
Since 2016, the Stará Aerovka has belonged to the museum. The name means “old Aerovka” and stands for two historic halls of the aircraft manufacturer Aero in Letňany. According to visitor reports, it is around 900 meters on foot to the main grounds – allow for the walk.
- Hall V shows bombers and combat aircraft from World War II to the 1980s, including the Aero C-3A (the Czech version of the Siebel Si 204), the forward fuselage of a Petlyakov Pe-2 and Sukhoi fighter-bombers (Su-7 and Su-22).
- Hall VI is devoted to Aero’s company history. Here stand a replica of the Aero A-18 from the 1920s and prototypes of the L-29, the L-39 and the L-159 ALCA.
For type fans, Hall VI is especially appealing: The L-39 is one of the most successful jet trainers ever, and here you see a prototype with which development began.
Photography in Kbely
Kbely is a museum for discovery but not an easy photo museum. In many halls the aircraft stand close together, and all-round views are rare. That calls for a different approach than at the fence.
Pack a wide-angle lens
In the postwar hall, the distance to the MiGs is often small. A wide-angle gets fuselage and wings into the frame together.
Details instead of full views
Air intakes, cockpits, national markings and missiles under the wings are often stronger subjects than the full view.
Plan the outdoor area around the light
The Tu-104A stands outside. When the light is on the right side, you can find out with sun position planning.
Use rainy days
In bad weather you stay in the halls. More ideas are in the article Plane spotting in bad weather.
Caution, military airfield
The museum is on the grounds of an active military airfield. Don’t point your camera at the military part of the operation, and follow barriers and signs. What generally applies at military airfields is explained in the article on the rules for photographing at military airfields.
Getting there, season and visit
The museum is on Mladoboleslavská street in Praha 9 – Kbely. VHÚ recommends public transport because parking is limited and fills up quickly.
- By metro and bus: Metro C to the terminus Letňany, then one of the bus lines to the “Letecké muzeum” stop, which is right at the gate. According to VHÚ, lines 185 and 302 stop there, among others.
- From line B: From the stations Českomoravská and Vysočanská, line 375 runs to the museum.
- By car: possible, but with limited parking.
The museum is seasonal. According to the Prague tourism portal, it is open from May to September Tuesday to Sunday from 10 a.m. to 6 p.m., and in October on Saturdays and Sundays only; last admission is at 5:30 p.m. The 2026 season began as early as April 25, according to VHÚ. The museum stays closed in winter. Since hours can shift from year to year, check the VHÚ website before you travel.
Admission is free. Children under 15 may enter the exhibition only accompanied by adults. According to the Prague tourism portal, the exhibitions are wheelchair accessible.
How much time do you need in Kbely?
Rough guide, not including travel, walking and breaks.
Events and the airworthy collection
Part of the collection is airworthy. For the 2026 season opening, VHÚ announced demonstrations with a Zlín Z-381, a Zlín Z-126 Trenér and an Aero C-104, among others – each depending on weather and technical condition. Such dates are the best opportunity to photograph historic aircraft not just standing still but in the air. You will find tips in the article Photographing airshows.
The museum restores its aircraft in its own workshops, in part together with industry partners. If the work behind the scenes appeals to you, read the article on volunteering in aviation museums.
Combining: museum and live traffic in Prague
Kbely is ideal as a building block of a spotter trip to Prague. A sensible plan: one day at the museum, one day at the airport.
- At Prague Airport there is an official elevated position for spotters with the viewing platform near Kněževes.
- All the important spots, directions and runway configurations are summarized in the article Plane spotting in Prague.
- Practical notes on the museum as a spotting destination are on the spot page Letecké muzeum Kbely.
If you are planning a museum trip through Central Europe, you can combine Kbely well with other venues: the Polish Aviation Museum in Kraków, the Flugplatzmuseum Cottbus, the Military History Museum Berlin-Gatow or the Aviaticum Wiener Neustadt. Cottbus and Gatow in particular complement Kbely well, because many Eastern Bloc types stand there too.
Go if you …
- want to see Eastern Bloc types like the MiG-15 to MiG-29, Il-28 and Tu-104A up close
- want to combine a Prague trip with an aviation program
- are looking for a large museum without admission costs
Check ahead if you …
- are coming in spring or October – note the season start and weekend-only operation
- want to see a specific aircraft that may be under restoration
- are hoping for events with flying vintage aircraft
Better elsewhere if you …
- are traveling in winter – the museum is closed then
- mainly want to photograph current airliners on approach
- are looking for a museum with a strong focus on modern civil aviation
From the museum to the fence
Spot map with directions and best light, sun position planner and weather, wind and runways at the airport: Planetrack brings everything together for your spotting day in Prague. Planetrack is launching soon – get early access through the waitlist.
Conclusion
The Prague-Kbely Aviation Museum is a must-visit for anyone interested in aviation behind the former Iron Curtain. On the airfield where Czechoslovak military aviation began in 1918, it tells the story in historic halls, from the biplanes of the First Republic through the Czech copies of the Me 262 and Bf 109 to the MiG-29. With the ČSA Tu-104A, the Soyuz 28 capsule and the Stará Aerovka branch, civil aviation, spaceflight and industrial history are added.
Plan your visit within the season, take at least half a day and combine Kbely with a spotting day at Prague Airport. And since admission costs nothing, there is also nothing against a second visit.
In brief
Almost the entire MiG family, the ČSA Tu-104A and rarities like the Avia S-92 with free admission: Kbely is Central Europe’s Eastern Bloc aviation museum par excellence – best on a day in season, complemented by a spotting day at Prague Airport.
Summary
- The Letecké muzeum Kbely shows Czechoslovak and Czech aviation history on one of the oldest military airfields in Central Europe.
- The focus is military aviation; added to that are airliners like the Tu-104A, sport aircraft and spaceflight with the Soyuz 28 capsule.
- The Stará Aerovka branch complements the main building with bombers, Su-7, Su-22 and the prototypes of the Aero jet trainers.
- Free admission, easy access by metro and bus and the proximity to Prague Airport make Kbely an ideal building block of a spotter trip to Prague.
Frequently asked questions
What is the Prague-Kbely Aviation Museum?
The Letecké muzeum Kbely is an aviation museum on Prague-Kbely military airfield in the northeast of the city. It is run by the Prague Military History Institute (VHÚ), opened in 1968 and mainly shows Czechoslovak and Czech military aviation from 1918 to the present.
How much is admission?
Nothing. According to the Prague tourism portal, admission is free. Children under 15 may visit the exhibition only accompanied by an adult.
When is the museum open?
The museum operates seasonally. According to the Prague tourism portal, it is open from May to September Tuesday to Sunday from 10 a.m. to 6 p.m., and in October on Saturdays and Sundays only; last admission is at 5:30 p.m. In 2026 the season started as early as April 25, according to VHÚ. It is closed in winter – check the hours before your visit on the VHÚ website.
Which aircraft are the highlights?
For many spotters, the ČSA Tupolev Tu-104A, the Czech variants of the Me 262 and Bf 109 (Avia S-92 and S-199), the almost complete MiG series from the MiG-15 to the MiG-29 and the landing capsule of Soyuz 28.
What is Stará Aerovka?
A branch of the museum in two historic halls of the manufacturer Aero in Letňany, opened in 2016. Hall V holds the Aero C-3A, the nose of a Pe-2 and Sukhoi fighter-bombers, among others, and Hall VI covers Aero’s company history with prototypes of the L-29, L-39 and L-159. It is a walk of just under a kilometer to the main exhibition.
How do I get there by public transport?
Take Metro C to Letňany and then the bus to the “Letecké muzeum” stop, which is right at the gate. According to VHÚ, several lines stop there, including 185 and 302; from the metro stations Českomoravská and Vysočanská (line B) you can take line 375. Parking is limited, so VHÚ recommends public transport.
Can I also spot flight operations in Kbely?
Only to a limited extent. Kbely is still a military airfield, takeoffs and landings of transport and government aircraft can’t be planned, and the grounds are not freely accessible. For airliners, head to Prague Airport, for example the official spotting platform near Kněževes.
Can I take photos in the museum?
Photography for private purposes is common in aviation museums, and many visitor photos are evidently taken in Kbely. We found no specific rules on tripods or commercial use in official sources – if in doubt, ask the staff, and don’t point your camera at the active military part of the airfield.
Collect sightings around Prague-Kbely Aviation Museum
Post photos with registration, type, airline and spot, collect your finds in your hangar and get likes and comments from the community. Planetrack is launching soon – join the waitlist and get early access.
Related airlines
The airlines that go with it – with IATA and ICAO codes, callsign and livery.
Czech Airlines
Historic Czech national airline: ČSA flew from Prague from 1923 to October 2024, entered the jet age early with the Tu-104, flew the Il-62 all the way to New York, and today lives on only as a brand on Smartwings Airbus jets.
QS / TVSSmartwings
The Czech Republic’s largest airline, based in Prague: formerly Travel Service, now a charter and scheduled carrier with a Boeing 737 fleet, A220s in Czech Airlines colors and, since October 2026, part of the Pegasus group.
Typical aircraft
Tupolev Tu-104
A glazed bomber nose, two engines deep in the wing roots, landing gear pods behind the wing: in 1956 the Tu-104 was the Soviet Union’s first jetliner. Today you meet it only in a museum.
Aircraft typeMikoyan-Gurevich MiG-15
Stocky fuselage, 35 degrees of sweep, horizontal stabilizer high on the fin: the MiG-15 was the Soviet Union’s first major jet fighter, shocked the US Air Force over Korea in 1950 and flew with the East German NVA. Here is how to recognize it – in museums and as a flying warbird.
Aircraft typeMikoyan-Gurevich MiG-21
Round nose intake with a shock cone, delta wing plus horizontal stabilizer, slim fuselage: the MiG-21 is the most-produced supersonic jet in history. Here you learn how to recognize it, what it meant for the NVA and where you can still see it today.
Aircraft typeMikoyan MiG-29 Fulcrum
Two vertical stabilizers, widely spaced engines and air intakes that close on the ground: the MiG-29 was the only NVA combat jet to keep flying with the Luftwaffe. Here is how to recognize it, how its German years went and where it still flies.
Aircraft typeAero L-39 Albatros
Pointed nose, two stepped cockpits in tandem, fixed tanks on the wingtips: the Aero L-39 Albatros was the Warsaw Pact’s standard jet trainer and is now a favorite of aerobatic teams and private jet owners.
Aircraft typeAero L-159 ALCA
Pointed radar nose, tip tanks, a single jet engine: the Aero L-159 ALCA is the Czech Republic’s light combat jet from the L-39 family. Here is how to spot it, tell the versions apart and know where it flies.
Aircraft typeMesserschmitt Me 262
Triangular fuselage, two jet engines under the wings, nosewheel landing gear: the Me 262 was the first jet fighter in operational service. Today you see it as an original in a museum or as an airworthy replica with modern engines.
Aircraft typeMesserschmitt Bf 109
Narrow nose, angular canopy and a narrow-track landing gear: the Messerschmitt Bf 109 is the most-produced fighter in history and today a rare warbird. Here is how to tell the Emil, the Gustav and the Spanish Buchón apart and find airworthy examples.
Aircraft typeIlyushin Il-18
Four turboprop engines under a long, straight wing, a slim fuselage and a deep, resonant hum: the Il-18 was the Soviet Union’s first big turboprop airliner and the backbone of Interflug in the 1960s. Here is how to recognize the classic.
Aircraft typeDouglas DC-3 / C-47
Two radial engines, a tailwheel, a fuselage that sits at a slant on the ground: the DC-3 and its military sister the C-47 are legends. Here is how to recognize them and how to find the last flyers in Europe.
Spotting locations around Prague-Kbely Aviation Museum
Spots where you regularly get the matching aircraft in front of your lens – with vantage points, light times and coordinates.
Letecké muzeum Kbely in Prague
At the military airfield in the northeast of Prague stands one of the largest aviation collections in Central Europe: from the MiG-15 to the MiG-29, from the Avia S-199 to the L-159 and with a Tu-104 in the open-air area. Here is how to plan your visit as a spotter.
Spotting hillKněževes spotter platform at Prague Airport
The official elevated spotter platform at Prague Airport: at Kněževes you stand north of main runway 06/24, right at the touchdown zone of 24 – with trash bins, a portable toilet and the best light from late summer afternoon on.
More entries
Prague Václav Havel Airport
The Czech Republic’s largest airport and home base of Smartwings: a dominant main runway 06/24, a crosswind runway 12/30, two terminals for Schengen and non-Schengen – and official spotter platforms built by the airport itself.
MuseumPolish Aviation Museum Krakow
The Polish Aviation Museum in Krakow sits on the former Rakowice-Czyżyny airfield, one of the oldest airfields in Europe. Here stand World War I aircraft that exist nowhere else, the only surviving PZL P.11c, a Spitfire in the colors of Poland’s No. 308 Squadron and a large outdoor area full of jets and helicopters from East and West.
MuseumCottbus Airfield Museum
On the southern part of the former Cottbus-Nord airfield, an association shows almost 50 aircraft – mainly from the holdings of East Germany’s NVA, complemented by NATO types, vehicles and air defense equipment. The site is considered the cradle of the GDR air force and was an active military airfield until 2003.
MuseumMilitary History Museum Berlin-Gatow Airfield
At the former air base and later RAF airfield Gatow in western Berlin, the Bundeswehr shows its air force collection: jets from NATO and the Warsaw Pact, helicopters, surface-to-air missiles and the history of an airfield that experienced the air warfare school, the Airlift and the Cold War. Admission is free.
Related guides from the blog
- Plane spotting in Prague: spots, traffic and day plan at Václav Havel Airport
- Soviet airliners: Tupolev, Ilyushin and Yakovlev at a glance
- Identifying fighter jets in Europe: Eurofighter, F-35, F-16, Rafale, Gripen and Tornado
- Identifying vintage aircraft in the sky: Ju 52, DC-3, Constellation and warbirds
- Photographing military airbases: what spotters can and can’t do at German air bases
- Volunteering at an aviation museum: how to get to restoration and exhibits
- Plane spotting in bad weather: making the most of rain, fog and clouds

