China has started commercial production of its deadliest drone for
overseas users, and it could be a rival to US remotely piloted vehicles,
according to a Chinese drone researcher.
Wang Song, an associate professor with the school of aeronautic science
and engineering at Beihang University, said the first flight of a
mass-produced CH-5 Rainbow on Friday last week meant China was ready to
offer international buyers a heavy military drone with performance
equalling that of the General Atomics MQ-9 Reaper, but at around half
the cost.
The Rainbow flight was conducted at a military airport in Hebei
province, according to Xinhua. Unlike with a test flight two years ago,
the aircraft that was flown was a production model, the state news
agency said.
The
Reaper, or Predator B, was the world’s first unmanned aerial vehicle
that could attack targets on the ground. At US$16.9 million, according
to a 2013 US budget report, it was also the world’s most expensive
drone.
“The CH-5 may come in at less than half of the price,” said Wang, who
was deputy chief designer of a Chinese military drone but not directly
involved in the Rainbow project.
The Rainbow series, ranging from the tiny model 1 to the three-tonne
model 5, was developed and produced by the China Aerospace Science and
Technology Corporation, the company behind the space programme. Rainbows
have been sold to more than a dozen countries, with annual production
exceeding 200 units, and are the “most popular military drones in the
world”, according to the company’s website.
However, the initial output of the CH-5 would be relatively small, Wang
said. It could be more than 10 units a year, but was unlikely to exceed
20 due to the size and sophistication of the aircraft.
“This should meet the early demand,” Wang said.
The Rainbows are mainly for the overseas market.
In 2015, the Iraqi Ministry of Defence released a video showing a
missile attack on an Islamic State target by a CH-4B drone, which is
just a third of the size of the CH-5.
The CH-5 can carry up to 16 air-to-ground missiles and stay in the air
for nearly two days, said Shi Wen, the chief designer of the drone, in
an interview with
Global Times last year.
After being modified for certain missions, it can fly for up to 120 hours, giving it a range of more than 10,000km.
This endurance enabled the drone to fly to a target 3,000km away and
stay overhead for up to 20 hours, Shi told the state-run newspaper.
Such performance “leaves the Predator series in the dust”, he added.

The CH-5 has other advantages. For instance, it could be operated by an
undergraduate student with basic knowledge of aviation after only one or
two days of training, according to state media reports. This was
because of the simplicity of its user interface, and the fact that
operations like take-off and landing could be automated.
The drone can also be modified to be a low-cost airborne early warning
system, or equipped with high-tech sensors such as wall and
ground-penetrating radars developed by China.
However, Wang said the Chinese drone had a weakness compared to its
American counterparts. The Reaper can climb to a height of between
12,000 and 15,000 metres. This allows the US drone to stay above the
reach of most ground fire.
The CH-5, on the other hand, cannot operate at more than 9,000 metres, which makes it vulnerable to some anti-aircraft weaponry.
The limited ceiling of the Rainbow is a by-product of its relatively
weak engine, according to Wang, who noted that China still lagged behind
the West in aircraft engine technology.