Man base jumps from 400-foot tower but parachute doesn't open as friend films entire thing

Shocking footage shows the moment a man leapt from a 393ft base jump - only for his parachute to fail to open.

It's the stuff of nightmares and his friend caught the horrifying incident on video as it happened back in 2012.

You can see what happened here:

Unlike in skydiving where there's a lot of time and space to react if a parachute fails, base jumping is a shorter distance.

This can mean that if something goes wrong, you have far less time to react to put it right.

But unfortunately for this daredevil, his parachute did not open after he leapt from the vantage point in Konakova, Russia.

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This meant that he ended up falling some 393ft - or around 119 metres - so it's a pretty massive drop.

In the clip, the man - who was reportedly 28 at the time - makes his way over to the edge before taking a leap towards the snow-covered ground.

He leapt from the tower. (YouTube/@acz42)

However, it's clear that something was wrong when his descent wasn't slowed by his parachute.

He eventually crashes into the ground in a puff of snow - which his friend managed to catch on camera.

But while he did survive, he were not left entirely unscathed and suffered from fractures to his vertebrae, pelvis, and legs.

However, he was able to walk again around three months after the incident, according to The Daily Mail.

People were left stunned by the footage and took to social media to share their shock.

One wrote: "Holy cow that's incredible he survived."

A second posted: "Wow, this video left me speechless. Luckily the snow cushioned the impact and saved the guy."

Meanwhile a third added: "Thank god he survived! I always get uncomfortable seeing it but I kinda wanna see what happens. Knowing he's alive makes me feel better."

The jumper is not the first person to survive a tremendous fall, however.

Miraculously he survived the fall though came away with some fractures (YouTube/@acz42)

Nicholas Stephen Alkemade had the unenviable job of a tail gunner in the Royal Air Force in World War Two.

On a mission over Germany his plane was shot down, and Alkemade leapt from the Lancaster Bomber without a parachute as it had been damaged by fire.

Alkemade jumped from the plane as he preferred to be killed instantly by the impact rather than burn to death.

Miraculously, he survived the 18,000ft drop unscathed and was captured before eventually being liberated at the end of the war and dying in 1987 at age 64.