Beech King Air B200 conversion to B350
image compares the Rareplanes King Air 200 (top), modified
200 (middle) and the King
Air 350 (bottom).
Rareplanes kit suffered a couple of faults, primarily the
excessive slope of the windscreen and the fuselage 1/4
inch too short ahead of the wings, a small amount in 1/72nd
but a significant 18 inches full scale. The nose also appears
too pointed. Since
it is easier to remedy these faults on resin parts than
the original vacform, a plaster mould was made of the Rareplanes
fuselage halves and two sets of resin castings made. One
set was used to correct the windscreen and the rear section
cut off 1/4 inch aft of the leading edge of the wing cut-out.
The second set was cut off at the leading edge of the wing
cut-out and mated to the front section of the former set
and the resulting gap ahead of the wing filled, so
correcting the length problem.
second plaster mould was made using the above as patterns
to produce KingAir 200 fuselages and two sets of fuselage
castings for the King Air350 patterns. For the '350',
the front 93mm of one set was mated to the rear 98 mm
of the second set and the wing cut-out restored
to its correct shape with filler. These patterns were
used to make the moulds for '350' fuselages.
The Rareplanes wings
can be used as is for the '200' but require winglets and
wing root extensions for the '350'. The nacelles also
require lengthening and slight modification for the
'350 but the project has stalled for the time being and
these latter modifications have not been completed.
photos courtesy - Air Force
although not producing the high quality reproductions of
RTV moulds, were used for economic reasons. Accuracy can
only be as good as the reference material available.