Horrifying new footage of the jet disaster that killed 41 in Moscow has emerged amid claims pilots made basic errors during the emergency because they were incapable of landing without the assistance of autopilot.

The Aeroflot plane can be seen bouncing down the runway before bursting into a deadly fireball at Moscow's Sheremetyevo airport on May 5.

The footage emerged as an expert claimed that the experienced captain Denis Evdokimov - hospitalised as a result of the crash - had never previously manually flown the Sukhoi Superjet 100 in so-called 'direct mode' before the crash.

A lightning strike soon after takeoff forced the pilots to make an emergency landing but this should not have led to the flames in which dozens were burned alive or killed by toxic fumes, say authoritative figures in Moscow.

The crash investigation is leaning towards 'pilot error' over the landing and leading Moscow experts now say an 'over-dependence on autopilot' on commercial flights is an issue that should be addressed by all major airlines.

Newly released footage shows the plane (top) bouncing as it careered along the runway before bursting into flames

The plane's captain and pilot Denis Evdokimov receiving treatment at a hospital in Moscow

Despite the lightning strike which disabled the plane's internal communications, an emergency landing in manual mode should have been relatively straightforward, according to Kommersant newspaper, which cited sources in the official investigation.

Can planes land themselves? Yes a plane can land by itself using a system that is often referred to as 'autoland'. The pilots can program the auto pilot to carry out the landing automatically whilst the pilots monitor the aircraft. The autopilot is usually used to land in low visibility conditions when there are typically little or no winds. Autolands can only be performed under strict conditions that require the certification of both the aircraft the pilots and the airport itself. On an autoland approach, the pilots cross-check the plane's speed and path to the runway and are ready to take over from the computers, should a system fault occur. On some planes on-board computers and systems can automatically track the runway centerline after touchdown, apply the brakes, and bring the plane to a safe taxi speed. Advertisement

But 'it was the pilots themselves who dangerously speeded up the aircraft immediately before landing and, on top of that, put it into a dive'.

This made the situation 'critical'.

'Now the investigation is to establish which of the two pilots performed the dangerous manoeuvre that cost 41 lives,' stated Kommserant.

Autopilot systems allow pilots to fully automate landing procedures or to partially control them. They can also be totally switched off, allowing the pilot to take full control.

So-called 'Autoland' systems guide the plane onto the runway using the lines on the tarmac at approved airports. Both Sheremetyevo airport and the Sukhoi Superjet 100 are equipped for fully automated landings.

But in this case it is believed the pilot chose, or was forced, to land the aircraft without the aid of the autopilot system - a process which Denis Evdokimov was reportedly not well-practised in.

Separately, aviation expert and former designer at Sukhoi Design Bureau, Vadim Lukashevich, said: 'I believe that this catastrophe is a consequence of a set of mistakes of pilots that began from the moment when lightning hit the plane.

'It caused problems but they were not critical. The decision to return was right.

'But then the pilots had to remember they actually are pilots and had to fly the plane the way that was normal for international aviation 40 years ago, without autopilot.

'To my knowledge, the commander of the aircraft Denis Evdokimov who has flown over 1,400 hours on SSJ-100 had never landed in Direct Mode (fully manually).

'They were landing normally, with a glide path but they pushed the nose down and increased the speed before landing.

'It was lucky that the front gear didn't break. If that happened, the consequences would have been even worse.'

The investigation is attempting to establish which of the two pilots performed the manoeuvre that cost 41 lives. Pictured: Co-pilot Maxim Kuznetsov

Aviation experts claimed the pilots were too reliant on the autopilot feature. Maxim Kuznetsov pictured left and right

Fireball: The Russian plane trails a huge cloud of smoke on the tarmac at the Moscow airport

The SSJ-100 aircraft of Aeroflot Airlines jet on fire during an emergency landing in Sheremetyevo airport in Moscow, Russia

He said : 'I believe that the incident is the result of a piloting mistake.'

The Russian-made plane 'fell from the height of a three-storey building. No airliner existing today would have endured such a landing.'

Top Russian test pilot Viktor Zabolotsky said: 'The pilots did everything right initially.

'They went on a second approach, and came towards the runway on a glide path.

'Traffic controllers were absolutely calm and started discussing where they should taxi after landing. It is hard to say at which stage mistakes were made - most likely when levelling.

'Anyway it is not a proper landing when the front landing gear touches down first, not the rear.

'They should have gone for another approach. The stability of the plane was compromised.

Investigators are now looking into the cause of the crash, which happened shortly after the plane took off from Moscow's Sheremetyevo Airport headed for Murmansk

Recovery: Emergency workers at the scene of the crash after passengers scrambled to evacuate the jet following its emergency landing in Moscow

'In this situation you should either hold and the plane levels but this bears risks, because it might not, or to go for another approach.

'That's the best thing to do. It could have been (corrected) after touchdown too.'

Zabolotsky stressed: 'Most likely they were not well-trained in this mode when you need to both manage the plane and the engines.

'That is, there were two mistakes. A mistake during landing - and a mistake at fixing that mistake. The plane sustained all imaginable and unimaginable forces at such landing.'

He said: 'The plane sustained all imaginable and unimaginable forces in this landing.

'The force it is built for is 3.6G but there was 5.5G or even more. Even with such hit the plane stayed intact. everything sustained it apart from areas where the gear is attached to the wings.

'The fire began when the gear crushed the [fuel] tanks, fuel leaked out and caught fire from sparks - the tail scratching the runway.

'There could have been an explosion. The crew should not allow such forces at landing, but the plane itself is good.'

Disaster: A huge fireball erupts from the Superjet plane after it crash landed in Moscow

Senior pilot Denis Okan - formerly an instructor and examiner for the country's second largest airline S7 - warned that pilots do not get sufficient practice in manual landings.

'This is not a problem of Russian air carriers alone,' he said. 'It is a global problem.'

He claimed the recent Moscow disaster followed a landing in which the pilot was 'not very used' to flying manually.

He warned it had become too 'seductive' for crews to use autopilots .

'All the aviation catastrophes of our time were in one way or another relate to pilots not being able to recognise situations when automation did not behave properly — or there was no way to use it.'

Investigators are considering several versions of the incident, including pilot error, insufficient skills, a technical failure and unfavourable weather conditions, reported TASS.

The crash probe is being led by the Interstate Aviation Committee.

Survivors described how people panicked as the plane came in to land trailing thick smoke and flames, rushing to the escape exits at the front of the aircraft

The Flightradar24 tracking service showed that the stricken made two circles around Moscow in what may have been a last-ditch attempt to lose fuel

A source said: 'The preliminary information on the disaster with the detailed analysis of the actions of the crew, the land services and the controllers will be released by late May in an interim report.'

The Kremlin has bluntly refused to halt flights by the SuperJet - or production of the aircraft - despite a series of last-minute cancellations and passenger concern over its safety.

This is seen as an indication investigators will blame human error for the crash.

Industry and Trade Minister Denis Manturov said: 'Why do we have to cut production? Has anyone refused to buy the aircraft? No production cuts are planned.'

In his only comment on the disaster, the plane's captain Denis Evdokimov appeared not to acknowledge the heavy landing that preceded the fire, claiming 'everything was according to the book'.

'We lost radio communication because of a lightning strike,' he said. 'We did not have radio communications during landing.

Wreckage: The burned-out remains of the aircraft at the Moscow airport after a crash landing which one aviation commentator said had been handled 'expertly'

'We managed to resume it via an emergency frequency but it was abrupt and short. We managed to say a few words and lost it. And we had to connect it again.

'Air traffic control did help us, they guided us to the runway. The speed was not high, but normal for landing.

'Everything was according to the book. We gently approached the ground, slowing down.

'After a complete stop we ordered emergency evacuation. The second pilot was the first to leave the cockpit, then I did.

'At first I did not glance outside. When I did, I saw a fire engine. The fire began after landing. We were not on fire when in the air.'

His co-pilot Maxm Kuznetsov, 36, has not spoken about the crash.

He was seen as a hero having escaped by rope from a cockpit window.

Kuznetsov then clambered up the emergency slide amid reports he rescued Captain Evdokimov.

There has been no official explanation if this account was correct.