2014-06-12

Too Close for Discomfort, Chinese Did It Again

from various sources
by the editor
JUNE 12, 2014
自衛隊機に異常接近した中国のSu27戦闘機(防衛省提供)
One of Su-27s  that approached too close to JSDF aircraft on June 11. (Defense Ministry)
Japan’s Defense Ministry announced that a pair of Su-27 fighters approached  at abnormally close distance in air  to
Self Defense Force ISR aircraft over East China Sea at 11a.m. and noon JST respectively. Two Japanese aircraft were OP-3C imagery information gathering of Maritime SDF and YS-11EB electronic information gathering mission of Air SDF and both aircraft were approached by Chinese fighters as close as a 30 meters. Both Chinese aircraft did not violate Japanese airspace and did not cause any damage to SDF aircraft and crew.
Minister of Defense Itsunori Onodera publicly announced the incident in the evening of the same day, saying the government conveyed its message of protest to Beijing through diplomatic channel. Onodera also mentioned that  this Chinese behavior was very dangerous as it might have caused an accident. He also said that the Chinese should show more discipline.
This incident is the second attempt by Chinese since the May 24 event. As it was scheduled to convene Japan-Australia diplomatic-defense consultation in the evening of the same day, some Japanese government source showed a view that Chinese had tried its move against Tokyo.

According to Defense Ministry, the incident occurred at airspace 300 km north of Senkaku Islands, Okinawa where Air Defense Identification Zones of Japan and China overlap and close to the intermediate line between the two countries.
The two SDF planes allegedly were in surveillance mission to monitor military activities of Chinese forces. The Chinese fighters, carrying air-to-air missiles, did not try to warn by radio.
In May 29, China claimed that a Chinese air force plane had been chased by Japanese military aircraft at as close as 10 meters in November 2013. Defense Minister Onodera immediately responded to this claim saying there was no such a fact.
China is seemingly trying to make their self-imposed ADIZ as an accomplished fact by repeating scrambles.■



2014-06-04

★New Engine for Future Fighter Development in Progress


Ground Test of Engine for Advanced Fighter Underway

June 4, 2014
compiled from press release of Technical Research and Development Institute as well as other reporting
National Institute for Defense Studies, a division of Technical Research  and Development Institute, the Ministry of Defense is conducting functional test of XF5-1 a demonstration engine for forthcoming advanced technological demonstrator-X (ATD-X). The engine weighs 644 Kg  or 1,420 lb with thrust power of about 5 tons (11,200 lb).
As the first indigenous low-bypass turbofan engine with afterburner, XF5-1 achieves world’s top class in weight-thrust ratio.
The proving test is being conducted in Sapporo, Hokkaido, by simulating various air flow situations at altitudes and speeds to confirm constant and transient performances as well as restart in air.
The tests are to achieve first flight of ATD-X; its development will be completed in 2016 with flight testing by Air Self Defense Force.

XF5-1 mounted on high altitude performance test bed
(Photo: Technical Research  and Development Institute, Ministry of Defense)




動画
XF5-1’s afterburner in work
(Photo: Technical Research  and Development Institute, Ministry of Defense)