The workflow plan is simply an outline of the steps required to complete
The Miles M. 20 oozes
Well-planned projects are less
likely to encounter delays.
Second, keep an eye out for dependencies. Will it be easier
to set up the aileron controls before the wings are joined?
Putting the subprojects in order prevents rework.
Third, the breakdown is useful for time management. When
I only have a few minutes to spare on my way out the door
to work, I find a 5-minute job and knock it out. I focus more
heavily on the big things when I have larger windows of time.
Now let’s put workflow planning to the test. The project
that I am working on is a Miles M. 20 of my own design.
Miles M. 20 Project Goals
A wingspan of 45 inches is the maximum that my trunk
will hold. Stick-and-tissue construction is my preferred style
because of its classic look and light weight. This combination
of size and construction ensures that the project’s cost will be
modest. Plus, this is a good size for detailing and flying. My
plan was to create a new design and scratch-build it.
With regard to subject matter, I love warbirds and something
sporty and aerobatic was in order. I also love servoless retracts,
retracts are a hassle.
I fly from softball
fields a lot, and
retracts don’t hold
up on the dirt.
Vetoing the retracts
can be a problem,
fixed gear look
goofy to me, and
making too many
makes me a sloppy
So, my project
goal was to find a
with the looks of
a real fighter, with roughly a 45-inch wingspan. Luckily, there
was a photo in my “someday” folder of just such an aircraft.
The original Miles M. 20 was a British fighter prototype
produced while the Battle of Britain raged. The design’s intent
was to create a simple aircraft that could shore up Spitfire and
Hurricane losses without competing for factory resources.
Built almost entirely of wood, with fixed gear and no
hydraulic system, the little M. 20 went from drawing board
to maiden flight in a blistering 65 days (my M. 20 has taken
Looking slightly like a Tempest with Wellies (rubber
boots) on, the M. 20 performed somewhere between the
Spitfire and the Hurricane, but with greater capacity for
fuel and armament. Despite the Miles team’s impressive
accomplishments, the need for the M. 20 passed and the
project was scrapped.
M. 20 Project Requirements
Manzano Laser Works cut a short kit for me. There is
enough wood in the kit for the stringers and bowed outlines
for the tail. The wing’s leading edge requires 1/4-inch soft balsa,
and a sheet of 1/32-inch balsa is needed for the tail. A 1-inch
and two 3-inch wheels are needed, as well as two or three
yards of covering.
For running gear, I have a 1,000 Kv 480 motor, ESC, and
44 Model Aviation JUNE 2015 www.ModelAviation.com