We love hearing from our readers: Your emails, tweets, and comments quickly let us know what you’d like
to see more (or less!) of in upcoming issues and online. Here’s what some of you are saying about Model
Airplane News magazine.
Model Airplane News
88 Danbury Road, Wilton, CT 06897
Understanding Glow Fuel
Ah, the smell of glow fuel in the morning! We
recently posted a piece explaining exactly
how glow fuel works and what’s inside a
gallon of this magical go juice that’s been
such a big part of our hobby of RC model
airplanes. Here are some of your comments.
Jesse Lee: I started off with only electrics;
now I have a couple of glow planes. I am
loving my glow planes more and more each
time I fly them.
Mike Maddux: Electrics are clean, but
nothing beats the sound and smell of glow
Greg Estrada: I’ve been doing nitro fuel for
40 years. No match.
Jan Nordhoy: Really good article on glow
fuel—finally someone that knows what the
nitro is good for in the fuel. It’s not about
adding power alone, as most think; as you
wrote, it’s because the engine gets more
oxygen and, so, more power. I had a long
argument on this in one of the FB groups I’m
a member of.
Charles Nott: My first glow engine was a
Cox .049 on a Jr. Ringmaster. We would get
our fuel from a friend’s dad; he mixed his own
and used a good helping of nitro.
Cale Gauger: Glow fuel planes just sound
cool. All my planes are glow.
Michael Bowman: All I have are glow plugs!
And I hand-prop the engine to start.
Facebook The Pros Tell All!
It’s always good to learn something new, so we recently posted
a great how-to article that included several tips and tricks for
building and flying RC airplanes. We asked some of the more
experienced big names in the hobby to share some tips. You guys
noticed, and here’s what you said.
U In Our Mailbox Desktop CNC
I read with interest the review you did of the desktop CNC system in the last issue of
MAN. I am intrigued. Can you tell me the advantages of a hobby-grade CNC versus a laser
cutter? Thanks for the great technical articles—keep it up.—Scott Michaels, Boulder, CO
Scott, thanks for writing. I had a lot of fun
assembling and learning how to operate the
desktop CNC system from Stepcraft. I’ve run
several test jobs with it, and you can see them
online at ModelAirplaneNews.com/stepcraft. First
off, as with any relatively expensive piece of shop
equipment, you first have to define what you
actually want to accomplish. If you simply want
to build some models, I would not recommend
spending the money if, in the end, you could do the
same tasks with a band saw. If, however, you are
interested in producing multiple precision parts,
then the investment is valid. Having both a 40-watt
hobby laser cutter and the CNC, I’ve learned that
both are useful and each has its own advantages. For thin wood stock, like balsa and light
plywood (up to 1/4 inch thick), the laser cutter can produce a lot of parts quickly. To cut thicker
wood, you need to invest in a more powerful laser cutter in the 90- to 100-watt range. Also, it
is great for engraving wood and cast-acrylic awards and plaques. If you want to do more and
produce much thicker parts—like 1/2-inch-thick firewalls, 1/4-inch plywood formers, 1/8-inch
plywood wing ribs, and other load bearing parts—then a three-axis CNC is the way to go. Plus,
if you want to cut and machine other materials like carbon fiber, aluminum, and brass sheet
materials, then the CNC wins hands down. My hobby laser won’t even dent these materials.—GY
CR: There are some good tips, but I
would need a whole article to learn
Nick Ziroli’s wing-fairing tip.
BM: Mike Greenshields makes some
good points. Most of the pilots I know
never range-check their planes, and
I’ve seen it cost them. I always, always,
JT: I really enjoy reading about
engines. Dave Gierke is the best
source for two-stroke and four-stroke
CM: David Scott is spot-on!
Coordinating rudder with aileron
eliminates adverse yaw, and you
don’t need a computer radio. Learn to use
SE: Thanks to Aaron Ham for showing
a great way to start gasoline
engines. I always have had a hard time of
it. Not anymore.
AB: An excellent article all around. I
always learn something on the MAN
Facebook page. Thanks!