The Mach Loop

by | Feb 14, 2015 | Aviación militar, Fotografía | 4 comments

The Mach Loop is a set of valleys, located between Dolgellau in the north, and Machynlleth, from where the Mach Loop gets its name, in the south, which is used regularly for low altitude training flights, with flying to heights as low as 250 feet/76 metres from the nearest terrain. If you want a great adrenaline kick and the absolute chance to get some fantastic photographs, then the Mach Loop it is. It’s great and absolutely stunning to spectate the aircraft as they fly through the twists and turns of Snowdonia. Both the Royal Air Force and United States Air Force use the Mach Loop and the aircraft that regularly fly this area include Tornados, Typhoons, Hawks and F-15E Strike Eagles. 

Low-level flying

Low-level flying is a highly valued and vital skill for military aircrew, and the Royal Air Force uses several areas of the United Kingdom for low-level flight training. The United Kingdom is split into 18 different low flying areas, or also known as “LFAs”, the LFA’s being numbered 1-19 (Strangely there is no LFA15). The Ministry of Defence MoF website has a map pictures below showing the location of the low fly areas. The Mach Loop is located within LFA7, which covers the whole area of Wales, except for a minor small section in the north-east area of Powys, which is within LFA9.

Locations

First of all - I'd like to thank Mark Jayne from MJA Aviation to allow us to embed the great maps below.

Bwlch viewing area.

The Bwlch is located approximately five miles east of Dolgellau on the A470 road to Dinas Mawddwy. When looking down the valley from the main viewing location one can get a jaw-dropping view of the aircraft as they snake their way through the twists and turns of this narrow valley. The jets usually fly in from the eastern area and can either turn left towards the Cad pass, straight on for Dolgellau or turn right and head up towards Bala. Type of images able to shoot - Topside or level pass The height of destination: Top Ledge 420ft. Lower Ledge 240ft.  Cad East sits in the shadow of the massive Cadair Idris at the beginning of the Tall-Y-llyn valley. From the top of Cadair Idris it’s possible to view all the way to Snowdon and towards Bala so approaching aircraft can be seen very crisply. There is an access road that runs up through the back of Cad East which does have limited spaces for parking. Type of images able to shoot - Belly shots, head on, level pass The height of destination: 420ft Corris Corner is situated in the south-west end of the Tall-Y-llyn pass, almost above the lake. From here the aircraft have just two options, they can either keep going straight over the lake or turn to a sharp left and follow the valley to Corris offering lovely topside views with the sun behind you, meaning a clear, crisp shot is possible. Take note, this location is fairly tricky in the late afternoons due to the sun being directly in front of you especially during the winter days. There are a few more locations in Wales, including Heartbreak Hill which is situated in between the Bala and Dolgellau valley, the A5 Pass which flies over Lake Ogwen, and the Dyfi Valley which is a new-ish location northeast of Dinas village. Another location is BlueBell hill which is located just east of the Bwlch. Type of images able to shoot - Topside The height of destination: 330ft
Bluebell viewing area

Bluebell viewing area

Bluebell sits nice and deep in the valley viewing up towards the Bwlch locations. There is a layby close to the parking area, in which has ample space. Jets approach from Dinas from the right at a significant speed but give very little notice on their arrival. Lighting can be a little difficult at times but when it’s good it really can be the place to be. Type of images able to shoot - Side on or dipped wings The height of destination: 320ft (Steep climb)   Additional Readings and Links - Author - Jake Meilak    

Related Questions

What is the Mach Loop?

The Mach Loop is a set of valleys in Snowdonia, Wales, used regularly for military low-altitude flight training, with jets flying as low as 250 feet (76 metres) above the terrain. It lies between Dolgellau in the north and Machynlleth, from which it takes its name, in the south.

Where is the Mach Loop located?

The Mach Loop is in mid-Wales, within the UK's Low Flying Area 7 (LFA7), which covers most of Wales. It sits between the towns of Dolgellau and Machynlleth in Snowdonia. Popular viewing spots such as the Bwlch offer dramatic close-up views of jets threading the valleys.

What aircraft fly the Mach Loop?

Both the Royal Air Force and the US Air Force use the Mach Loop for low-level training. Aircraft regularly seen there include Tornados, Eurofighter Typhoons, Hawk trainers and US F-15E Strike Eagles, flying fast and low through the Welsh valleys.

Why do military jets fly so low?

Low-level flying is a vital combat skill, letting aircraft use terrain to hide from enemy radar and air defences. It is one of many tactics that have shaped military aviation over the decades, and the RAF practises it across designated UK low-flying areas like the Mach Loop.

How low do jets fly at the Mach Loop?

Jets at the Mach Loop can fly as low as about 250 feet (76 metres) above the nearest terrain, snaking through the valleys at high speed. This makes it one of the best places in the world to watch and photograph fast military aircraft up close.

Why is it called the Mach Loop?

The Mach Loop takes its name from the town of Machynlleth at its southern end, combined with the looping circuit the valleys form. The name has nothing to do with the speed of sound; the jets there fly fast and low but generally below supersonic speeds.

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4 Comments

  1. Thanks for the information

    Ridden on my off road bike over that area , have to get back out there now I have finished off-road photography, just need to find out days and times when they are flying

    • marcus

      did you get the time when they are flying?

  2. walter bitar

    I would like to know which is the period of the year when is possible to see the show
    thanks