Above: This is Chuck Cawthon’s Beech Twin, built from BlueCor foam
insulation board. Its basic assembly and finishing is discussed in the
column. Left: The basic foam structure was given a few brushed coats of
water-based paints. It has a neat final appearance!
This is a close-up of the Mobius digital video
recorder/camera. This small camera is lightweight
Q622: I’ve heard that modelers have
successfully built RC airplanes using
basic foam insulation that can be
purchased at home improvement stores.
I’m curious about the type of material,
the cements used, and the paints for
finishing. Can you shed some light on
A622: I was hoping for a question about
this subject, because I had something
interesting in my files. A while back,
Chuck Cawthon, from Texas, sent me a
group of photos showing what he was
able to do with common blue insulation
I have included in this column several
photos of one of Chuck’s electric-powered Fantasy Scale models—in this
case, a Beech Twin. One photo shows
the blue foam structure, while a second
photo shows the final product with a
neat, scalelike paint job.
Let me pass on some tips from Chuck
that cover his assembly and finishing
techniques. The basic foam material he
uses is 1/4-inch Dow BlueCor fan-fold
foam that he purchases from his local
Lowe’s home improvement store.
Chuck uses slow-setting Arrow Hot
Melt glue sticks and a glue gun. This adhesive allows roughly 20 seconds to adjust
the alignment of parts before it cures. For minor surface imperfections, he employs
DAP Fast ’N Final Lightweight Spackle. Chuck indicated that there is a significant
weight difference as compared to regular spackle.
Chuck uses water-based acrylic paints, also available from Lowe’s, and applies
them with brushes. Any detailing is done with a Magic Marker. These are only
the basics. Chuck’s email address appears in the “Sources” section if you have any
detailed questions for him.
I’ve also included a photo of Chuck’s Patchen Explorer, which I will discuss while
answering the following question.
Aerial Videos and Still Photos
Q623: I would like very much to be able
to take aerial videos and still photographs
from my model aircraft. Can you get me
A623: This past summer I dedicated myself
to learning about aerial photography. I
chose to purchase the Mobius camera,
which is popular for several reasons. It
87 Model Aviation DECEMBER 2015
FREQUENTLY ASKED QUESTIONS