Typical silica gel packs can be found in
prescription drug bottles. Some are packets,
while others are similar to small jars.
Placing the silica gel packs inside an engine
shipping box is a much neater approach than
floating an engine in a jar of solvent or oil.
claims to be a good
item to help fair parts
into various model
shapes. It works on
wood as well and is
available through BP
This is a grouping of typical LiPo battery packs.
The referenced website provides good battery-storage tips worth noting.
Q611: This is not a question, but actually
a series of suggestions concerning tips
for the storage of LiPo batteries.
Reader James Arnold found a PDF
file on the website of the Ute R/C
Association in Salt Lake City, regarding
the subject. The link is listed in the
“Sources” section. Much of it has been
said before, but this write-up puts
everything in an easy-to-read format
and in one place.
Engine Storage Suggestions
Q612: What is a good way to prevent
rust from forming on a model engine
that is in storage?
A612: Reader Ron Ogren shared this
“I store my idle engines with a
desiccant that is usually found in the
prescription drug bottles to absorb
moisture. These little packs are the right
size for placing inside the
boxed engine for that same
purpose and to prevent
place these silica gel packs
in the bulk-size bottles
sent to the drug stores then
the local druggist removes and
discards them when he or she fills
a prescription for local delivery. Most
pharmacists will save these for you
when you ask nicely and explain your
“Some of the packs are blue in color
when new, but will change to pink when
hydrated. Heating them to 250°F in an
oven for one or two hours will remove
the moisture for continued use.”
Having read this, I look forward to
comments from my readers on this
Q613: I am
my first scale
warbird. It’s a
Top Flite Corsair.
Because of all of the
curves, it’s going
to take some filler
to get the balsa
faired out nicely
and to fill the gaps
after fitting the air
scoops in place.
what is recommended for lightweight,
A613: One of the items I heard about
from a local club member is a product
from Beacon Adhesives Inc. called
Foam-Tac Foam-Finish. Although
intended originally for foam application,
I’ve been told it works as well on wood
Foam-Tac Foam-Finish can be
purchased from BP Hobbies LLC. The
website is listed in the “Sources” section.
Readers, please let me know if you have
other ideas on this subject.
Reed Emulator and Galloping Ghost
Q614: I read with interest your Q606
question and answer that appeared in
the February 2015 “Frequently Asked
Questions” column. Cal Orr is to be
commended for his efforts on reviving
the old resonant reed RC systems of
I found a wonderful reference to a
United Kingdom website that is the
work of Phil Green. Phil offers kits for
a variety of Old-Timer RC equipment.
(I’ve listed his website in my “Sources”
Additionally, I’ve heard that Cal Orr
has come up with a Galloping Ghost
emulator that he expects to market.
What is that all about?
A614: Yes, Cal has informed me of
his new Galloping Ghost emulator.
One version is a single-channel unit
for rudder-only control, as it was back
in the 1950s. Cal’s circuit plugs in
between your (modern) RC receiver
and an actuator such as the old Adams
Actuator shown in the photo included
in this column.
This circuit converts pulse width
from the receiver to a set of pulses
that can be offset as you operate the
LiPo battery storage tips
79 Model Aviation JUNE 2015 www.ModelAviation.com
FREQUENTLY ASKED QUESTIONS