David P Andersen
- Low Cost CAD
designing for the average modeler.
David gave a short
presentation on the use of ModelCAD 4.0
for creating your own design aircraft.
ModelCAD is a free download on the web
and is easy to use.
Be aware that the
copy I found was called ModelCAD 300 and
was available as a 15 day free trial
option to purchase.
I found another copy
called Model-CAD 12.0 that is available
as Shareware for a fee of $55.
The software publisher (Upperspace)
describes it as:
This CAD system is specifically designed
for PC and scale modelers. In simple
terms, it is a tool for designing and
drawing. You can create complete
sets of plans and print them to scale
for airplanes, boats, cars and trains.
the double-line commands or drawing
wizard to perfect even the most complex
designs. The program also prints out in
panels for larger plans than your
printer can normally handle.
Create your own airfoils, automatically
generate a three-part view of your
model, determine the center of gravity,
make distance and area calculations, add
dimensioning and receive online help.
As an example Dave
explained the use for creating ribs for
a built-up wing such as his new 1/5th
scale IL2 Sturmovic !
airfoil into your PC creating a JPG
Import the JPG
image into ModelCAD
Use the TRACE
function to create the CAD file by
tracing the outline of the airfoil.
Using your known
chord & thickness you can now scale
the airfoil and print for each rib
in your structure!
Dave's design techniques
are a combination of digital replication
and hand drawn detail such as adding the
details for ailerons and flaps.
Dave said he can
point you in the right direction if you
have interest to using ModelCAD for your
- Bud Nosen
Sherwood shared his
1/4 scale Bud Nosen Citabria that he had
started building in 2008 from an 20 year
old abandoned kit.
He covered it in SIG
Coverall with a dope base coat. He then
painted it with rattle-can Rustoleum
white with blue trim. Sherwood tells us
that the base white coat went on easily
and looked great. He then masked
and started painting the trim color that
looked good initially but when he can
back to it later he had found that the
trim color had crinkled into a
disturbing texture. He wet sanded
it smooth and then read that Rustoleum
recommends a minimum of 48 hours between
The power for the
original design of the Nosen Citabria
was the old 0.61 cu in (10cc) glow
engine. Sherwood replaced his with
a MLD-28 and found that the crankcase
was a flawed casting and had failed. He
tried a second MLD and it had the same
issue. He scrapped the MLD and
installed a Zenoah G26 and it runs
No test flight yet
so we look forward to Sherwood's flight
Ah Bassal -
J10 3D Turbine Jet
This is the 8th
model he's built from his design, this
time for a good friend in Egypt.
Ah has used some special carbon fiber
cloth he's found in Europe that is
thinner and lighter to reduce the weight
of his structure. The material
cost in the range of 100 Euros per
structure proved to be very strong and
light but an unexpected side
effect of being translucent. The
final color is KlassKote.
This aircraft is
powered by a Jet Italia 250N (55 pounds)
thrust turbine. The final weight ready
to fly is about 20 pounds. Since
the model is intended to fly outside of
the USA it uses a Richter body bag fuel
cell (similar to a bladder tank).
To save weight even
further, Ah has used K&B wheels and had
removed the plastic hubs replacing them
with carbon fiber discs and Teflon
This reduced the
wheel weight by half!
The vectored thrust
director again was scratch built by Ah
from carbon fiber, sheet metal and parts
from McMaster-Carr. What a great looking
Dick Steine &
Scott Anderson -
Share their 1/5th Scale Westland
Both Dick & Scott
became interested in the Westland
Lysander early summer 2016 with the
discovery that Seagull Models had an ARF
kit of 118" span for a 50 cc engine.
imports Seagull models into the US and
apparently does not keep an inventory of
the kit in the states. Scott ordered his
directly from SIG in late June 2016 and
received it in October. (Shipping from
Montezuma, IA was $100) Dick ordered his
through a local hobby shop in July and
received it in November.
The kit looks to be
robust and is fairly easy to assemble in
spite of having limited instructions.
The fuselage is huge and has a
well-designed cockpit hatch to access
fuel, batteries and radio equipment.
canopy has some fitting issues but they
after separating the cockpit
canopy from the rest of the
is a heat shrink material with
the markings applied and a
coating of clear matte finish to
give it a nice look. Dick took
his stabilizer to the hardware
store to get some latex mixed to
match the colors for touch ups.
Dick has a
Zenoah G62 in his Lysander with
a Menz 3-blade 22x10 carbon
fiber prop. (He says that
he will NOT use this prop for
the initial test flights to
avoid the chance of breaking
Scott has a Saito
FG60-R3 petrol powered radial on his
Lysander and is looking at using a 22x10
2 blade for his test flights.
Dick built his
Lysander to fly so it has little or no
modifications. (He's ready to fly)
Scott is doing a
limited ARF Bash to make it look more
scale including removing 2-1/2 inches
from the length of the cowl to bring it
closer to scale and installing a
modified scale instrument panel and rear
pair of Browning .303 machine guns.
(It's going to be a couple of months
before Scott's is ready to fly)
The landing gear has
been known to be soft so Scott is
working with TnT Landing gear to get a
set of replacement gear made (aluminum,
or composite) before flying season
forward to the flight reports!
Roy Maynard -
David Andersen's new 1/4 Scale Hawker
Hurricane Mk IIc
project is progressing well! Roy brought
in the Hurricane dressed in primer to
share with us. This is a very big
It will be powered
by a Hacker 150 (equivalent to a 150cc
gas engine) running off of (6) 7 cell
5000 mAH batteries wired in series to
get 14 cells of voltage (approx. 50 VDC)
to the motor. Roy is working with
Progressive RC for the wiring harness
and charging systems.
The retracts are a
work of art and powered by LADO motors.
Roy reminded us that it is easy to make
mistake and connect the wrong voltage
battery if you are not careful. He
had mistakenly connected his gear to a
much larger battery than the 7.2V (2)
cell normally used and fried the gear
motor and controller. He expects
to get replacement parts in a few weeks.
Roy has added all
kinds of 3D printed details to his
Hurricane including customer printed
canons, blisters, exhaust stacks and a
highly realistic landing light. Roy has
a connect that could supply custom parts
to other modelers. If you are
interested, contact Roy Maynard for his
Roy has covered the
forward portion of the fuselage with
FeatherFill G2 polyurethane based
primer. It comes on thick and sands
easily to smooth out any flaws that
might be in a balsa sheeted structure.
He's using KlassKote primer in the back
where weight is more of an issue. The
final colors will be a WWII Great Briton
scheme with invasion stripes using
Roy also showed his
details instrument panel for his new WWI
SE5. The instruments & bezels were all
3D printed. He had a fitting finished
with brass leaf paint that he had to
order from Europe.