I know their are some drawbacks to this type of construction: mainly
that the strength to weight is less compared to molded parts, the
surface finish needs a lot of work and it must be stored out of the
sun.
Brock
I'm not sure if the Glass Goose was moldless or premolded - it was
kind of a mess anyway, the blunt aft sections of the fuselage shed
vortices into the pusher prop, and produced uncommanded yaws at
cruising speed of 20-30 degrees. Gary Legare was the genius behind
that design.
Looks pre-molded: http://www.glassgoose.com/index.html
Hopefully they fixed the aerodynamic problem with vortex generators or
a redesign.
Peter van Dine out of Annapolis designed and built the Merganser:
http://www.1000aircraftphotos.com/Contributions/VanTilborg/9192.htm
http://www.eaachapter478.org/Newsletters/478%20Aug%2007%20Newsletter.pdf
Look for a photo of a COMPLETELY different amphib also built by Pete.
Merganser Aircraft
7656 Binnacle Ln, Owings, MD
(410) 741-5075
Air Shark, Seawind, those were definitely pre-molded.