This article is from the source 'bbc' and was first published or seen on . It will not be checked again for changes.

You can find the current article at its original source at http://news.bbc.co.uk/go/rss/-/1/hi/wales/7884831.stm

The article has changed 8 times. There is an RSS feed of changes available.

Version 0 Version 1
Search for crash clues continues Search for crash clues continues
(about 2 hours later)
A search for clues to what caused a mid-air collision that killed four people has resumed in south Wales.A search for clues to what caused a mid-air collision that killed four people has resumed in south Wales.
Two teenage air cadets, who were cousins, and their instructors were killed in the crash.Two teenage air cadets, who were cousins, and their instructors were killed in the crash.
They were on an RAF "air experience flight" when their two light aircraft collided near the seaside resort of Porthcawl. The girls were on an RAF "air experience flight" when their two light aircraft collided near the seaside resort of Porthcawl on Wednesday.
Gp Capt Andy Naismith said the air force felt it had lost "four of our close family".Gp Capt Andy Naismith said the air force felt it had lost "four of our close family".
A tight police cordon remains in place across the crash site, spread over a half a mile of land close to the Kenfig Nature Reserve.A tight police cordon remains in place across the crash site, spread over a half a mile of land close to the Kenfig Nature Reserve.
The German-made two-seater Grob Tutor aircraft had been undertaking an air experience flight, which aims to give those interested in a possible military flying career a taste of the RAF's work.The German-made two-seater Grob Tutor aircraft had been undertaking an air experience flight, which aims to give those interested in a possible military flying career a taste of the RAF's work.
The aircraft had flown from their base at RAF St Athan in the Vale of Glamorgan on what was supposed to be a routine 20-minute sortie. The aircraft had flown from their base about 20 miles (32km) away at RAF St Athan in the Vale of Glamorgan on what was supposed to be a routine 20-minute sortie.
But eyewitnesses reported seeing the two planes collide and an explosion, before both aircraft crashed to the ground at around 1100 GMT. We've been flying the Tutor for nearly 10 years, and it has an absolutely outstanding safety record RAF Gp Capt Andy Naismith But eyewitnesses reported seeing the two planes collide and an explosion, before both aircraft crashed to the ground at about 1100 GMT. We've been flying the Tutor for nearly 10 years, and it has an absolutely outstanding safety record RAF Gp Capt Andy Naismith
Three investigations into the accident have now been launched, one by the police, another by the Air Accidents Investigation Branch (AAIB), and an RAF Board of Inquiry. Three investigations into the accident have now been launched, one by the police, another by the Air Accidents Investigation Branch (AAIB), and an RAF board of inquiry.
Aviation writer and air accident expert Jim Ferguson said the main focus at the moment was to recover "every scrap of wreckage", and track down all the eyewitnesses.Aviation writer and air accident expert Jim Ferguson said the main focus at the moment was to recover "every scrap of wreckage", and track down all the eyewitnesses.
"One issue for the investigators is that these sort of planes do not carry black box flight recorders," he said."One issue for the investigators is that these sort of planes do not carry black box flight recorders," he said.
"So without that detailed flight data, the investigation will rely on examining the aircraft remains, and taking detailed eyewitness statements.""So without that detailed flight data, the investigation will rely on examining the aircraft remains, and taking detailed eyewitness statements."
DebrisDebris
South Wales Police have already asked that members of the public stay away from the crash site area, and if they do find any crash debris, to leave it in place and contact its officers.South Wales Police have already asked that members of the public stay away from the crash site area, and if they do find any crash debris, to leave it in place and contact its officers.
Mr Ferguson also appealed for people to heed the advice: "The debris can be strewn across a wide area, and it is the best evidence the teams will have to pull together a picture of what happened.Mr Ferguson also appealed for people to heed the advice: "The debris can be strewn across a wide area, and it is the best evidence the teams will have to pull together a picture of what happened.
"I would say to anyone who has come across any wreckage, even if they've picked it up and taken it home, please tell the police and let them do their job."I would say to anyone who has come across any wreckage, even if they've picked it up and taken it home, please tell the police and let them do their job.
"Also, if you did witness the crash, please get in touch with the police, any little detail may be significant in discovering what caused this tragedy.""Also, if you did witness the crash, please get in touch with the police, any little detail may be significant in discovering what caused this tragedy."
The crash scene was close to the M4 motorwayThe crash scene was close to the M4 motorway
The UK's fleet of around 100 Grob Tutor planes are owned and maintained by a civilian company, VT Aerospace.The UK's fleet of around 100 Grob Tutor planes are owned and maintained by a civilian company, VT Aerospace.
Mr Ferguson said all paper records relating to the two aircraft would now be "locked down" by investigators, as they examined them in detail.Mr Ferguson said all paper records relating to the two aircraft would now be "locked down" by investigators, as they examined them in detail.
'Oustanding safety''Oustanding safety'
However, the RAF said it had no intention of withdrawing the Grob Tutor from service at the moment.However, the RAF said it had no intention of withdrawing the Grob Tutor from service at the moment.
The planes provide 'Elementary Flying Training' at three RAF bases, including the aircrafts' parent base, RAF Cranwell in Lincolnshire. The planes provide "elementary flying training" at three RAF bases, including the aircrafts' parent base, RAF Cranwell in Lincolnshire. Grob Tutor Manufacturer: Grob AircraftSeats: Two - trainee and instructorTop speed: 155mph (250kmh)Range: 719 miles (1,150km)Engine: 180hp Lycoming Propeller: 3-blade Source: Grob Aircraft
Grob Tutor Manufacturer: Grob AircraftSeats: Two - trainee and instructorTop speed: 155mph (250kmh)Range: 719 miles (1,150km)Engine: 180hp Lycoming Propeller: 3-blade Source: Grob Aircraft
Gp Capt Andy Naismith from RAF Cranwell said he had taken the decision to keep the Grob Tutor planes flying.Gp Capt Andy Naismith from RAF Cranwell said he had taken the decision to keep the Grob Tutor planes flying.
"We've been flying the Tutor for nearly 10 years, and it has an absolutely outstanding safety record," he said."We've been flying the Tutor for nearly 10 years, and it has an absolutely outstanding safety record," he said.
"We are very confident of it. I am content, generally, to continue operating the Tutor ad infinitum.""We are very confident of it. I am content, generally, to continue operating the Tutor ad infinitum."
As the investigations continue on site, Bridgend council said it had organised a number of community support services in the area.As the investigations continue on site, Bridgend council said it had organised a number of community support services in the area.
Specially trained counsellors will be on hand at Kenfig Hill fire station to offer help to any members of the public who feel affected by the crash.Specially trained counsellors will be on hand at Kenfig Hill fire station to offer help to any members of the public who feel affected by the crash.
South Wales Police officers will also be on hand to take statements from anyone who witnessed the incident.South Wales Police officers will also be on hand to take statements from anyone who witnessed the incident.
Anyone who witnessed the incident or has discovered debris should contact South Wales Police on 01656 306102 or 01656 306103.Anyone who witnessed the incident or has discovered debris should contact South Wales Police on 01656 306102 or 01656 306103.