Dramatic aerial footage shows a teenage asylum seeker steering a deflating 14-metre-long dinghy crammed with 165 migrants as it made a 24-hour journey across the English Channel.

Passengers can be seen with their legs dangling over the side of the black inflated boat wearing “poor quality” life jackets, with pictures showing a glimpse of the “dangerous” journey from Calais over to UK waters.

This was a record high number of passengers on a boat for a Channel crossing when the craft made the journey carrying men, women and 31 children, the youngest aged 14, on July 23.

Chan Atak, 19, from South Sudan, was jailed for two years and three months’ at Canterbury Crown Court on Friday for endangering others during a Channel crossing after piloting the dinghy.

The court heard the boat’s tubing had started to deflate, one of the two outboard engines was not functioning, and  one person was “constantly pumping” to try to re-inflate the rigid-hulled inflatable boat.

The footage shows Atak steering one of the boat’s engines wearing a black jacket with an “Italia” logo with his hood up.

The court heard video captures the defendant controlling the boat for around 90 minutes.

But then Atak crouched down among other passengers and took off his jacket “to avoid detection as the helmsman”, prosecutor James Harrison said.

He initially told police officers in interview that he did not direct the tiller at any point and denied being the male wearing the Italia jacket.

But when officers said he was seen discarding the clothing he answered no comment, the court heard.

Sentencing him, Judge Sarah Counsell said Atak played an “important role” in controlling and navigating the vessel, and it was not “fleeting or incidental involvement”.

“Crossings of this nature are inherently dangerous,” she said.

“Small inflatable vessels of the type commonly used for these crossings are not designed for offshore sea voyages.

“Those who choose to steer such vessels assume responsibility for the safety of those on board.”

The judge also noted that as well as engine issues, the vessel did not have navigation, emergency signalling equipment or firefighting equipment while fuel containers and batteries were “stored together creating a risk of fire”.

But she added there was no evidence he organised the crossing or that he stood to make money from it.

The court heard Atak had told police officers he paid 200 euros to a gang for the crossing.

Atak, who has no previous convictions, pleaded guilty to the single offence in August at the same court.

The teenager, aided by an Arabic interpreter, wore a T-shirt and a large white rosary around his neck at the hearing on Friday.

Defending him, barrister Audrey Mogan urged the court to take into account his young age, having turned 19 the month before the crossing took place.

Ms Mogan described Atak as someone who has “escaped the horrors of South Sudan”, where he saw militia set fire to a neighbourhood, people shot and their throats slashed.

He escaped from there to Libya, where the situation for young asylum seekers is “dire”, she said, and he was beaten and particularly focused on because of his Christianity.

“It’s from there he escaped to Italy and then to France,” she said.

She told the judge: “He wants me to tell this to your honour, he came here to seek sanctuary and safety, that is of course what asylum seekers are doing, to build a new life and to leave the dire circumstances where they come from, seek protection.”

The court heard the sentence for Atak meant as a foreign national he was liable in principle to automatic deportation back to his country.

Following the sentencing, Andrew Stephens, from the Crown Prosecution Service, said: “Those sentenced to more than a year in prison face being deported and if they make an asylum application their conviction will be taken into account.”

He added that in this case passengers in the boat were “cold, wet and crowded into a boat for a journey of more than 23 hours by Chan Atak who had no experience piloting a boat”.

The National Crime Agency also said the boat was found to have limited food, drinking water or medical equipment.

NCA senior investigating officer John Turner also said: “Chan Atak was unimaginably reckless and his actions could have easily resulted in many deaths had this boat not been intercepted.”

He added that the agency has more than 100 investigations ongoing.