LogoBuilding an Ariane V7

Here's some data and pictures (courtesy of Norbert Hübner) about building an Ariane V7.

Parts (in building order) Weight
Paint (dyed epoxy resin) 8 g
Glass fabric (25 g/m²) - 20 mm strip at the leading edge, including resin 3 g
Carbon fabric (80 g/m²) - outer layer and reinforcements (Source) 40 g
Resin for wetting the carbon layer 24 g
Foam core (net weight) 30 g
Carbon rovings (12000 type) 30 rovings inboard (less towards wingtips) top and bottom) 27 g
Shear webs, balsa with vertical grain, width 9 mm inboard, 3 mm outboard (net weight) 16 g
Glass fabric (25 g/m²) reinforcements at aileron hinge (top) and gap seal (bottom) 1 g
Servo wires 8 g
Resin for glueing together top and bottom 33 g
Wing total weight (including wiring, excluding servos) 190 g

A machine for saturating the carbon rovings: The roving gets soaked in the epoxy resin beaker (middle) and then pulled through a narrow, adjustable gap. Finally the rollers (front, inside the blue box) make for an even distribution and removal of excess epoxy.
Vacuum pump: An old fridge compressor fitted with a cooling fan and a vacuum gauge.
Fuse halves curing in the vacuum bag.
Top and bottom halves of the V-tail.
Top and bottom wing halves after curing of the outer sheeting and the spar. Foam core and balsa shear web are still protruding the separation surface.
Foam core and balsa shear web getting milled down flush with the separation surface.
A plywood template helps to make the cutouts for servos and ailerons.
Wing halves ready for installing the servos, cables, antenna, etc.
The mold is closed, the wing curing under pressure from carpenter's clamps (lots of them).
That's how it looks (with a little luck) after opening the mold. The wing still sticks to the lower half of the mold. No problem, some compessed air will usually make it pop out.

Home | Up | DEUTSCH    (Hannes Delago, Norbert Hübner - Jan 15, 1997 / Mar 27, 1997)