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Posted by Number_6 | Aug 19, 2020 @ 07:03 PM | 2,925 Views
Built this EPP foam wing from a Crash Test Hobby "Hercules' kit.
No longer in production, this wing is over 5 years old, and still
flies great. The LEDs are all custom.

Markham Park Vista View Flying Wing Crash Test Hobby Herc Night Fly Clip (1 min 13 sec)

Posted by Number_6 | Jul 11, 2020 @ 07:54 AM | 5,781 Views
Foam Concept Jets has a PDF plan.
Foamboard/EDF (70mm). Not perfect scale
representation.... but it flies OK.

I used the plan but modified it slightly.
I retained elevons only, but changed
their shape. It will fly better if you
change to a more perpendicular
hinge line (across the wingtip),
and use their dihedral, as shown.

Their PDF was a good starting point,
and the CG is good as shown on
that PDF.

Fun project. Changed to 47”L x 44”W,
80mm, 6s. Arm launch, belly land.
Simple, cheap, and fun, but foam
board just doesn’t last long enough!

As you can imagine, a large flight
envelope doesn't exist. Best to stay
at, or near 'military power', use shallow
banks, and don't forget to add about
3/8"+ reflex at arm launch, then trim
some out on first pass.

Keep your airspeed up in shallow,
level banks or the nose will drop
fast under the horizon.

What else.... I gave this F117 a 'Nascar
fan/ pace car' paint job... 75 feet,
at 75 MPH detail. Dull black hides
the modified hinge line, dihedral,
and 30% wider body. This is definitely
not 'scale'... funny, I get more comments
at the field about this plane than
anything else.

Planning another larger F117.
Only change will be using
an EDF (or two) with more blades
for better sound than the
Delta-V 32 80mm fan.

Have fun.

F117 VVP (1 min 30 sec)


F117 VVP (1 min 30 sec)
Posted by Number_6 | May 21, 2020 @ 02:34 PM | 5,955 Views
Lately been putting together kits and adding LEDs.

But with kits you need to inspect parts and get creative.

Limits are ribs, bulkheads, servo position, etc.

Today, I am adding some strips to a Valiant 10cc kit.

Came up with a method to add strips. Here's a few pics of Valiant, also others done recently.
Posted by Number_6 | May 20, 2020 @ 08:33 AM | 11,964 Views
'Simitar' styled, home built, EPP foam, film laminated,
pusher-motor plane.

Always liked the Simitar style. BUT, know not much
about balsa construction
, or fuel/gas motors
, so I built
an EPP foam plane that had a pusher motor, and was
launched by hand, and belly-landed on grass
... no landing gear.

I borrowed, and blended the build techniques from
CTH foam wings (Lee), and the style of
Bill Evans Simitar.

I was, and still am surprised how easy it flies.
This plane is 4 years old, and is still my favorite
for unique style, tight turns, and big presence
in the sky.

I have since built many Simitar styled foamies,
both tractor and pusher motors...yet the most
durable, has been this particular yellow version
because of the rear prop and rear skid.

Great blend of styles borrowed from Bill and Lee.

Simitar Style Flying Wing Maiden (0 min 30 sec)


Tight Turns 6ft Plank Simitar style EPP foam flying wing with elevons only (1 min 13 sec)
...Continue Reading
Posted by Number_6 | Apr 27, 2020 @ 01:04 PM | 9,933 Views
Dug up some old info about the killer of flying wings... flutter.

Interesting. Check out the info in the attached PDF.

Problem is finding a good battery position.

Will hotwire a test EPP wing, long ws, high aspect, tapered to test this idea.