Single-Seat Helicopters Edit
Get This Bite-Sized Chopper for $35,000

You know you need this.  It’s only $35,000 and it’s also the world’s smallest co-axial helicopter.  Buy online at: www.gen-corp.jp (Scroll to the bottom for a video)

From Odd Japan:

GEN Corporation developed GEN-H4, a compact single-seat helicopter. Equipped with a miniature engine of 125cc (8 horse power) and two propellers, it can reach a flying speed of 90 km (56 miles) per hour. At the moment GEN sells it at 3.6M yen and organizes demo flights as well as training courses (charged separately, of course).

With some skill it should be useful for commuting and avoiding crowded trains. To the Doraemon fans out there: I guess this is the nearest thing on Earth to “Takekoputa” (bamboo-propeller), what do you think?!

Specifications
Type Two-stroke, air-cooled, 125cc, horizontally opposed. Two-cylinder. 
Output power 10 hp per engine (40 hp with four) 
Weight 6.2 lb per engine
RPM 7,000 to 8,000 rpm in normal flight
Ignition CDI
Fuel 30:1 mixture of automobile gasoline and two stroke oil
Engine TBO 500 hr

Rotors
Diameter 4.0m (13’1”) 
RPM 800-900 rpm
Pitch Fixed (ground adjustable) 
Transmission CFRP composite
Gear Integral reduction gear and counter-rotating system
  Flight Controls
Roll & pitch By the control bar (which travels the whole rotor head
Yaw Left hand (through an electric controlled differential gear) 
Altitude Right hand (throttle lever; operated with the right thumb)
 
Empty weight 70 kg (155 lb) 
Max takeoff weight 220 kg (485 lb) 
Endurance 30 to 60 min. (Depending on payload) 
Cruising speed 100 km/h (60 mph) 
Ceiling 3,000m (10,000 ft) (estimate) 
VNE 200 km/h (120 mph)
Engineering System CO. Ltd.
5652-83 SASAGA, MATSUMOTO-shi, NAGANO-ken, JAPAN 399-0033
TEL: +81(263)26-1212 FAX: +81(263)26-1213