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#1
30-01-15, 02:50
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-the pipes are 3/4" plumbing pipes with an OD of1 1/8"
-the vertical pipes are 21 1/2" from the bottom end to the start of the bend at the top edge of the horizontal pipes. -the vertical pipes protrude through the bottom of the channel 3/4" -the end pipes are threaded 3/4" pipe thread below the channels. -the bends on the bows are 6" radius on the long side of the pipe. -the centre bow in the pipes is 3/4" above straight. -the angle braces are 13 1'2" on the long side -the pictures show how the horizontal pipes are made.
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1940 Cab 11 C8 Wireless with 1A2 box & 11 set 1940 Cab 11 C8 cab and chassis 1940 Cab 11 C15 with 2A1 & Motley mount & Lewis gun 1940 Cab 11 F15A w/ Chev rear ends 1941 Cab 12 F15A 1942-44 Cab 13 F15A x 5 1942 cab 13 F15A with 2B1 box 1943 cab 13 F15A with 2H1 box 1943 Cab 13 C8A HUP 1944 Cab 13 C15A with 2C1 box 1943 Cletrac M2 High Speed Tractor MkII Bren gun carrier chassis x 2 
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#2
30-01-15, 04:05
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pics
Nice pics of the frame . It would be quite a heavy thing being made from plumbers pipe .
1 & 1/8 "is a unusual size pipe . 3/4"plumbers pipe here has a OD of 1" Mike
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1940 cab 11 C8 1940 Morris-Commercial PU 1941 Morris-Commercial CS8 1940 Chev. 15cwt GS Van ( Aust.) 1942-45 Jeep salad Last edited by Mike K; 30-01-15 at 04:21.
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#3
30-01-15, 04:40
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Mike, it's a bit under the 1 1/8" but all plumbers pipe must be the same to take the 3/4" national pipe thread.
1" tubing is 1" outside diameter but the hole isn't 3/4".
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1940 Cab 11 C8 Wireless with 1A2 box & 11 set 1940 Cab 11 C8 cab and chassis 1940 Cab 11 C15 with 2A1 & Motley mount & Lewis gun 1940 Cab 11 F15A w/ Chev rear ends 1941 Cab 12 F15A 1942-44 Cab 13 F15A x 5 1942 cab 13 F15A with 2B1 box 1943 cab 13 F15A with 2H1 box 1943 Cab 13 C8A HUP 1944 Cab 13 C15A with 2C1 box 1943 Cletrac M2 High Speed Tractor MkII Bren gun carrier chassis x 2
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#4
30-01-15, 05:08
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Ok
Quote:
Not sure what National pipe thread is ? Sounds like its a Nth American standard http://en.wikipedia.org/wiki/National_pipe_thread found this , the 3\4 NPT outside diam. is around 1.050 " or 26 mm
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1940 cab 11 C8 1940 Morris-Commercial PU 1941 Morris-Commercial CS8 1940 Chev. 15cwt GS Van ( Aust.) 1942-45 Jeep salad Last edited by Mike K; 30-01-15 at 05:14.
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#5
30-01-15, 05:14
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NPT is a tapered thread so it tightens without hitting anything.
You could probably use British standard pipe. The mm difference in diameter wouldn't be noticeable.
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1940 Cab 11 C8 Wireless with 1A2 box & 11 set 1940 Cab 11 C8 cab and chassis 1940 Cab 11 C15 with 2A1 & Motley mount & Lewis gun 1940 Cab 11 F15A w/ Chev rear ends 1941 Cab 12 F15A 1942-44 Cab 13 F15A x 5 1942 cab 13 F15A with 2B1 box 1943 cab 13 F15A with 2H1 box 1943 Cab 13 C8A HUP 1944 Cab 13 C15A with 2C1 box 1943 Cletrac M2 High Speed Tractor MkII Bren gun carrier chassis x 2 Last edited by cletrac (RIP); 30-01-15 at 05:21.
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