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Japanese Goverment's Bell 214ST
@ 2004 Tonegawa river disaster relief training

Kanto Regional Development Bureau, Ministry of Land, Infrastructure and Transport has a helicopter
Bell 214ST named as "Aozora" (Blue Sky) for the purpose of disaster relief.

At the Tonegawa river disaster relief training, May 22, 2004,  Bell 214ST flew for VIP transport and
aerial video mission. 

This 214ST is only and final one in Japan.

214ST is the biggest 2-bladed main rotor helicopter in the world.
Maximum takeoff weight is17500lb !

214ST is flying ! (movie 389KB) 

Main rotor's 287 RPM, 2 per-revolution sounds.

Weather radar at the nose.

214ST has three pitot tubes and static ports.

So big cabin for 18 passengers.
The electric-powered folding step at skid.

Powerplant : Two General Electric CT7-2A turboshaft engines. (civil version of T700)

Elevator with trailing edge tab.
This elevator is contolled by Fly-By-Wire for wide C.G. range.

Cockpit and unique collective pitch lever.

Torque limitation : AEO MCP 1950hp and AEO takeoff-power 2350hp.

GROSS WEIGHT and DENSITY ALT ???

What is this panel ???
VNE caliculation?

VNE is 160kt !
In upper of airspeed, VNE indicator is located.

Main rotor blade with swept tip shape.
Very wide code !

Main rotorhub.

214ST has the in-flight blade tracking system !
Can you find the actuator at tip of pitch horn?
Opposing side one is balance weight.(See below)

In the lower side of hub-yoke, static stops are equipped.
This prevents the contact between yoke and mast.

Tail rotor.

Bell-made see-saw hub has a lot of kinds. I tried to sort a lot of Bell's see-saw rotorhubs as follows.

1. type1 : Bell 47 series
2. type2 : Bell UH-1/204/205 series
3. type3 : Bell AH-1 series /UH-1C (540 rotor system)
4. type4 : Bell OH-58A/C/206 series
5. type5 : Bell 222/230 series
6. type6 : Bell 214 series /AH-1W

214ST's main and tail rotorhubs looks like AH-1W's.

I expect that 214ST and AH-1W are using same rotorhub and transmission.

When I searched the various websites to research about 214ST for making this page,
I found the North Slope Borough Search and Rescue, Alaska, USA.
This team is using two 214ST ! These 214ST's are so cool ! 

29/05/2004.

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