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 D o p a m i n
Dopamin: Makes you happy!
The F3B model Dopamin is a further development of the Radical series. Main goal was a better performance for start and distance.

This was achieved through:
1. a new developed profile strake
2. a bigger aspect ratio
3. a new philosophy for the wingtip

The plane was mainly developed by Thomas Johansson. But Joakim Stahl also added his knowledge.
It has a wingspan of 3.15m, a 7,8% thick profile, which makes high demands to the structural composition. E.g. the wingload was split to two connectors.
To minimize disadvantageous turbulences on the tail, it has a special constructed end.
The fuselage is molded wet-in-wet with a blow-up-technique and has a superb strength-weight-ratio.

Dopamin "High competion version"
The wings are molded with IMS spread tow carbon fiber on the outside of the sandwich and 2x 65g/m² carbon fiber on the inside. This forms a double carbon-shell. The spar is built from a major carbon-sandwich and is able to take huge loads in conjunction with the UHM spar-flange.
Fuselage: carbon fiber blow-up-technique
Leitwerk: glass-fiber/Rohacell/glas-fiber with carbon-spar
LDS hinge (DIY)