(Please e-mail me at marius.postma@gmail.com with comments or questions)



I am pleased to present my latest MOC, a minifig scale Boeing 737-400.

Go ahead and skip right to the pictures if you want (that’s what I usually do),
but do yourself a favor and skim through the specifications and functions of 
the plane, so you you’ll know what you’re looking at.  After all, this is 
Technic; looks are only half of it.


Specifications:

Length:		132cm (4ft 4in)
Wingspan:		114cm (3ft 9in)
Height:			41cm (1ft 4in)
Width of Fuselage:	13cm (5in)

Seats:			2 crewmembers
			160 passengers

Luggage Capacity:	Zero (that’s right, all the space under the floor is 
			completely used)

Weight 
(no passengers):	7.0kg (15.4lb)

Power:			1x RCX
			1x 9V Battery box
			1x 4 cylinder pressure regulated pneumatic compressor
			2x Pneumatic air tank



Functions:

Elevators, Ailerons, Rudder:
Controlled with 3-axis joystick through cable connections.

Retractable Landing gear with landing gear bay doors:
Actuated by three large pneumatic cylinders and one small cylinder.

Flaps:
Five positions, actuated by 9V motor and controlled by RCX, position feedback
using rotation sensor.

Airbrakes:
Actuated by two large pneumatic cylinders and two small cylinders. Each Wing 
has separate control.

Position Lights:
Blinking lights positioned on wingtips, tail, and belly.  Controlled by RCX.

Turbines:
Individual Throttle (not so much throttle as on or off).  Fibre-optic unit 
and old-style 9V motor in each turbine.



Here’s and inventory of some of elements of interest (the more expensive ones):

1x RCX
1x Battery Box
5x 9V Motor (3 new, 2 old)
2x Rotation Sensor
1x Touch Sensor
3x Electric Switch
5x Pneumatic Valve
2x Pneumatic Air Tank
5x Large Pneumatic Cylinder
4x Small Pneumatic Cylinder
4x Small Pneumatic Pump
1x Pneumatic Hand-pump
10 meter Electric Cable (approximate)
6 meter Pneumatic Hose (approximate)