Leonardo AW169 Engine-Startup JA04AP「あかつき」 

The APU mode allows to power avionics, hydraulics, environmental control systems and cabin equipment (i.e. electromedical, laptops etc) while on ground with rotors stopped, without using helicopter batteries. The left engine can be declutched and effectively used as a dedicated APU, without impacting on the engine lifetime or cycles.

Lift versus drag and rotation that's a beautiful sound 👍👍👍👍👍👍 awesome video by the way

ローターが、個性的、風を切る音が、風鈴のようでここちよい、

Beautiful thank you for the video. :)

thank you for your sharing the beauty rotor.

Is engine started with air bleed from apu is it cept running in flight

Nice sound

Morning, This is a add on certs from my solo experience when l started flight training in Pipers and Cessna crafts.jt.2018.Oct.

1:31 Blades starting to spin

朝日新聞とABCテレビの共同ヘリですねー

Same type like Mr. Boss Lester , Vichai

Italian made aircraft ;)

SOUND OF EXCITEMENT!! 😆😆😆

ไวประจำสวนพระองอีกอย่างท่าพระองรู้สึกแปลกๆเวลาเดินทางนั่งรถเหือลฮอเมือนมีแรงดูดใหคนนรวจสอลดูทันทีอาดมีละเบิดในนั้น

Beware of mulfunctioning tail rotor.