Manufacturing of the fuselage
for the ornithopter model EV8
1. Stages of manufactoring of the fuselage
Constructing male mould of the fuselage
For a precise mechanism- and wing connection the position and direction of the main frames and the wing stroke axis needs to be determined right from the beginning.
To the right and left side of the shoulder component the turned halves of the profile spindle for the wing root transition are adjusted.
Finish male mould of the fuselage
with female moulds of the fuselage cover.
As a tail boom a conical tube will later be inserted in the rear of the finished fuselage.
Female mould of the fuselage
The female mould and the fuselage are manufactured in the usual glass fibre (GRP) construction.
Reinforcement of the fuselage
Without the wing adapter rollers the deep cut in the fuselage contour is good to be seen in the side view of the fuselage.
For reinforcing this part a strong carbon fibre tube together with the main frames will be inserted into the left and right side of the fuselage.
At back and front these tubes taper off very slender at the sides of the fuselage. Hence the fuselage gets very warp resistant. Here the center piece is ready to hold the chassis with the driving mechanism.
2. Wing adapter rollers
The manufacturing begins with the end plates of plywood and the layering of the rigid foam sections according to the later gaps. For their accurate alignment rectangle profiles are used.
3. Wing root fairing
Wing root fairing
For the transition from the symmetrical profile of the wing adapter roller to the cambered wing airfoil a mould construction is necessary, too.
Junction of the wing with the fuselage without wing root fairing.
To the Drive unit