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This is the rudder shaft detail. The inner and outer
tubes form a rust proof bushing. A steel rod runs through the inner
tube with the rudder and steering arm attached to it. |
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The rudder. Nothing fancy here. This is a piece
cut from an electrical box. |
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Wing saddle template printed from CAD drawing.
incidence is 3º positive relative to stab and as close to scale as I could
determine. Mounting is conventional dowels and bolts. |
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Flap detail. Servo is in the engine bay. The
horn can be seen near the top of the flap. Maximum deflection for now
is 30 º. |
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Jig for marking cowls. |
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Trial assembly. Target weight 30 pounds. I think
it was about 26 at this point. |
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Throttle servo mounting. |
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Engine bay with flap servo. I used foam that doesn't
take up water. Although it doesn't adsorb vibration like latex foam does it
seems to do the job. |
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Primed with latex primer from the furniture finishing shop -
Chemcraft Sadolin. This sands reasonably easily although not as well
as the stinking lacquer based product. |
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CIL flat exterior latex house paint. I was calling
this an official IJN (Imperial Japanese Navy) colour as the paint shop
matched it up for me. My wife came in while I was spraying and said,
"Oh, you're painting it army green". Whatever.... :-) |
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Frisket mask for the Hinamarus (Rising Suns) being cut with
a homemade compass. The eccentric pin on the right is a carpenter's
trammel point. It allows fine adjustment by rotating it. I used
a water based poly u to seal the dges. It worked reasonably well if
not perfect. Thinned tole paint was used for the red. |
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Cheaping out on the details. |
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The T-31 is film. I gave up on the yellow tole paint.
It was unworkable. The white circle behind the hinamaru was sprayed
first and then a smaller mask applied for the red. Initially I was
going to vac form clear parts but got impatient. |
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At this point all has been sprayed
with clear two part poly u in matte finish with exterior catalyst.
This is the Lucido brand from Chemcraft. I did this outdoors and even
then the stink from the outguessing once the stuff was brought inside was
pretty potent. |
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Engine run up. There is a
video of it here. Four x OS52s. |
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Balancing at at 25% MAC the junk on the nose weighs about 1
¾ pounds. Without the ballast the plane at this stage weighs 29½
pounds giving a finished weight of 31¼. On 11.8 square feet of wing,
loading is 42 ounces/sf. Fuse length is ~96"' and span 124". |
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Two five cell (the wire runs are very long)
2100 packs are in the box up front. A separate harness will be used
for each. The green thing is a Velcro strap to pull the packs out.
They and the ballast are retained by a push rod bolted to the tray. Elevator
servos are outboard, rudder is in the middle. There are 8 servos in
the wing - 4 throttle ;2 flap ,2 aileron. Barely visible is a plastic
shroud over the servos to keep the tangle of leads from the wing out of them
and to deflect water- which I hope won't get in. ;-). The receiver
will be mounted upside down under the tray. |
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Not much longer to see if it floats. |
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