SkyBuggy 300 Build

This is the StevensAero SkyBuggy (300), the subject of my next build:SkyBuggy

Planned setup:

This is my first ever balsa build, and the first time I’ll be trying to use covering film. Wish me luck!

parts

The parts have arrived!

All the wooden parts laid out for a light sanding, per instructions.

All the wooden parts laid out for a light sanding, per instructions.

Empennage

Completed sections of the horizontal stabilizer

Completed sections of the horizontal stabilizer

Vertical stab and rudder

Vertical stab and rudder

Fuselage

Got a fuselage half built

Got a fuselage half built

Interior 'ladder' forms fuselage bracing

Interior ‘ladder’ forms fuselage bracing

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Starting to get an idea of the size of the finished plane. (The Grolsh is included for scale.)

Starting to get an idea of the size of the finished plane. (The Grolsh is included for scale.)

After several experimental runs on my new motor test stand, we settled on the AX 2308 N bell motor to propel the ‘Buggy through the air. Its lower kV seems to translate into higher efficiency and, hopefully, longer flight times. StevensAero estimates its flying weight at 12.5 ounces, so I should be getting better than 1:1 thrust with any of these setups.

Data table from propeller tests

The stick for the motor mount, measured, cut and glued.

The stick for the motor mount, measured, cut and glued.

Here's where the motor goes.

Here’s where the motor goes.

A side view of the motor placement.

A side view of the motor placement.

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Here's where *somebody* tore a hole in the side and tried to patch it up.

Here’s where *somebody* tore a hole in the side and tried to patch it up.

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The windshield frame in place

The windshield frame in place

I hit my first snag on the model at this point. The instructions call for a pair of magnets. Search as I might, I could not find any magnets in the kit. The solution seemed to me to be to replace the magnets with a few I had on hand. Unfortunately, none of mine were exactly the correct dimensions, so I was forced to drill out the holes a bit. This resulted in much unfortunate breakage to half of the latch mechanism. It’s more epoxy than wood at this point. There’s actually a second magnet sitting on top of the latch in this photo.

The messed-up magnet latch is more epoxy than wood.

The messed-up magnet latch is more epoxy than wood.

Lower hatch cover with an oversized magnet epoxied in place.

Lower hatch cover with an oversized magnet epoxied in place.

The lower hatch goes here.

The lower hatch goes here.

... and closes like this.

… and closes like this.

The finished fuselage bottom.

The finished fuselage bottom.

The fuselage is done!

The fuselage is done!

Wing

With the fuse finished, it’s time to build us some wing.

My wife, building some wing.

My wife, building the wing.

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With the wing nearly finished, it’s time to see how it all looks. IMG_1600

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W6 - the last brace is glue in.

W6 – the last brace is glue in.

The left wingtip in place.

The left wingtip in place.

Gluing the last bit of the last part - right wingtip.

Gluing the last bit of the last part – right wingtip.

Marking the leading edge, getting ready to cut off the excess.

Marking the leading edge, getting ready to cut off the excess.

Leading edge cut and sanded to match wingtips.

Leading edge cut and sanded to match wingtips.

The finished wing weighs about 51 grams before covering.

The finished wing weighs about 51 grams before covering.

Covering

After nearly a month of fearful vacillation, I finally bit the bullet and did my first bit of covering today.

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cover-hor-stab-02The yellow film is translucent but, fortunately for me, both my wife and I enjoy the resulting look. cover-wing

The vertical stab, covered:

 

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Getting ready to start covering the fuselage.start-fuse

Here’s the very last piece of yellow:last-yellow

And the base yellow color is done!cover-final-002 cover-final-003 cover-final-001

 

servos

battcover

windows

hoz-trim-laid wing-trim-laid beth-iron-trim Wing_Hoz_Trimmed

The covering is FINALLY finished and the control surfaces hinged and mounted.

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almost-done-Beth Test-Assy-on-Wheels

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