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| Type: |
JgPz 38(t) Hetzer |
Armament: |
75mm |
| Built: |
Started October, 2002 |
Armor: |
60mm |
| Builder: |
Joe Sommer |
Rating: |
40/3 |
| Status: |
Operational |
Battles: |
72 |
| Owner: |
Joe Sommer |
Points Earned: |
165,164 |
| Call Sign: |
??? |
Points Given: |
139,000 |
| Notes: |
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Plastic & Aluminum Hull Drill Motor Drive System Anvilus Track Controller (variable speed) Plastic Conveyer Track System
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JgPz 38(t) Hetzer was a cheap, mass-produced
tank destroyer based on the out-dated PzKw
38(t) chassis. However, because it carried a
75mm gun and was one of the first AFVs to have
significantly sloped armor, it was a very effective
anti-tank weapon. The Hetzer was produced in large
numbers near the end of WW-II (2,584 produced
between April 1944 and May 1945). More drawings
are available at
Anvilus Machine Works
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The plastic hull was designed
for simple, rapid construction using
1/4 inch thick acrylic sheet. Front/rear
acrylic armor and framework for balsa
side armor have not yet been attached.
Tracks are Intralox series 900 mold-to-width
flush grid grey polypropylene conveyor
belt with tracking tabs.
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Internal components were placed
to check spacing but have not yet been mounted.
Two 12 VDC cordless electric drills will
be powered by a dual H-bridge motor controller
using 8 solid state relays. The motors will be
connected to dual drive shafts by nylon
miter gears.
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The right track has been opened to
show the 12 tooth dual drive sprocket and
tracking tabs on either side of the road wheels.
The conveyor belt is 3.25 inch wide with 1.07
inch pitch.
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The drive shafts and road wheel axles are 1/2 inch DIA steel.
The road wheel axles cross the full width under the floor plate
for added support. The solid axle mounts are 1 inch by 1 inch
acrylic bar bolted to each side of the hull. The hull was
reinforced with 1/8 inch aluminum plate at the front flange
bearings. The rear idler shaft used for track tensioning
is 5/16 inch DIA steel.
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The hull required tapping over 100 holes for 4-40 screws.
This view shows the framework for the sloped side and rear
quarter-panel armor plates.
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Corrugated cardboard was taped in place to show overall
hull shape and armor slope. Front armor will be 1/4 inch
thick acrylic sheet and is 30 degrees from horizontal. Rear
armor will also be 1/4 inch thick acylic sheet and is 20
degrees from horizontal. Side armor and rear quarter-panels
are 45 degrees from horizontal and will be light balsa wood
or acrylic sheet.
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Motors, drive sprockets, road wheels and idler wheels
were installed for track fitting. Each track required
62 links.
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Two drive sprockets with 1.5 inch square bores were
used for each track. The hubs of the sprockets were
trimmed to prevent interference with tracking tabs on
the inner surface of the tracks. The sprockets were mounted
on 1.5 inch square by 3.25 inch long aluminum bar stock
that had been center drilled for the 1/2 inch DIA drive
shafts. Two 10-32 sets screws were used in each aluminum
bar for connection to the drive shafts. Four 1/8 inch
DIA radial holes were drilled through the inner hub of
each sprocket and into the aluminum bars for roll pins
to prevent the sprockets from moving axially along the
bars.
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