Taken from blueprints supplied by the Florida East Coast Railway Company. My thanks to them for their generous cooperation. These values are for the use of fine-scale modelers. Areas are in square inches; lengths are in inches.
Area Req'd Area Used Member Gross Net Gross Net Section ------------------------------------------------------------------------------------------------------------- 0-1 73.2 79.74 1 cov. pl. 40 x 11/16, 4Ls 4 x 4 x 7/16, 2Pls 26 x 3/4 1-3 66.2 77.94 1 cov. pl. 40 x 11/16, 4Ls 4 x 4 x 3/8, 2Pls 26 x 3/4 3-5 78.1 84.94 1 cov. pl. 40 x 11/16, 4Ls 4 x 4 x 5/8, 2Pls 26 x 3/4 ------------------------------------------------------------------------------------------------------------- 5-9 73.5 79.74 1 cov. pl. 40 x 11/16, 4Ls 4 x 4 x 7/16, 2Pls 26 x 3/4 9-11 37.3 56.7 77.94 63.1 1 cov. pl. 40 x 11/16, 4Ls 4 x 4 x 3/8, 2Pls 26 x 3/4 11-13 67.0 58.5 77.94 63.1 1 cov. pl. 40 x 11/16, 4Ls 4 x 4 x 3/8, 2Pls 26 x 3/4 ------------------------------------------------------------------------------------------------------------- 13-15 77.1 91.44 1 cov. pl. 40 x 11/16, 4Ls 4 x 4 x 3/8, 2Pls 26 x 3/4, 2Pls 18 x 3/8 0-4 35.5 46.44 37.47 4Ls 4 x 4 x 3/8, 2Pls 28 x 5/8 4-6 55.5 69.24 56.3 4Ls 4 x 4 x 7/16, 2Pls 28 x 1/2 ------------------------------------------------------------------------------------------------------------- 6-8 65.2 84.24 69.6 4Ls 4 x 4 x 7/16, 2Pls 28 x 1/2, 2Pls 20 x 3/8 8-10 75.8 76.24 4Ls 4 x 4 x 7/16, 2Pls 28 x 5/8, 2Pls 28 x 1/2 10-12 109.0 109.44 4Ls 4 x 4 x 3/8, 2Pls 28 x 5/8, 2Pls 28 x 1/2
Area Req'd Area Used Member Gross Net Gross Net Section ----------------------------------------------------------------------------------------------- 12-14 96.0 97.24 4Ls 4 x 4 x 7/16, 6 Pls 28 x 1/2 14-15 100.0 100.72 4Ls 4 x 4 x 9/16, 6 Pls 28 x 1/2 14-16 30.1 37.12 30.40 2Ls 7 x 3 1/2 x 3/4, 2Pls 15 x 3/4 ---------------------------------------------------------------------------------------------- 1-4 42.2 54.0 42.75 4Ls 4 x 4 x 1/2, 2Pls 26 x 3/4 3-6 46.6 50.44 4Ls 4 x 4 x 3/8, 2Pls 26 x 3/4 5-8 57.1 57.44 4Ls 4 x 4 x 5/8, 2Pls 26 x 3/4 ---------------------------------------------------------------------------------------------- 8-9 56.9 69.94 56.57 4Ls 4 x 4 x 3/8, 4Pls 26 x 9/16 10-11 75.0 93.0 75.50 4Ls 4 x 4 x 1/2, 4Pls 26 x 3/4 12-13 37.6 38.94 4Ls 4 x 4 x 3/8, 2Pls 22 x 5/8 ---------------------------------------------------------------------------------------------- 3-4 32.0 26.2 41.44 32.46 4Ls 4 x 4 x 3/8, 2Pls 24 x 5/8 5-6 32.3 41.44 32.46 4Ls 4 x 4 x 3/8, 2Pls 24 x 5/8 9-10 62.3 63.76 4Ls 6 x 4 x 3/4, 2Pls 24 x 3/4 ---------------------------------------------------------------------------------------------- 1-2 29.4 39.0 30.0 4Ls 4 x 4 x 1/2, 2Pls 24 x 1/2 11-12 42.0 54.44 42.1 4Ls 4 x 4 x 5/8, 2Pls 24 x 3/4 13-14 33.2 43.2 33.6 4Ls 4 x 4 x 7/16, 2Pls 24 x 5/8 ---------------------------------------------------------------------------------------------- 7-8 29.44 4Ls 4 x 4 x 3/8, 2Pls 24 x 3/8 This member is detailed in the photo below
First image is of main truss; second of bottom laterals. Bottom laterals shown in red are found only on even-numbered panels. Members 5-10 and 16-20 are crossframes with tops and bottoms, each of which is 1L 4 x 4 x 3/8, and an "x" of which each piece is 1L 3 1/2 x 3 1/2 x 3/8. Drawing of bottom laterals is not to scale.
Member Section ------------------------------------------------------------------------------------------------------ Panel 1: Stringer span 28' 4Ls 6 x 6 x 5/8, Web pl 64 x 3/8 Floor beam at 0 4Ls 8 x 6 x 3/4, Web pl 74 x 3/8, 4Cov Pl 14 x 11/16, 2Cov 14 x 5/8 Laterals 1-24, 2-23 2Ls 6 x 6 x 7/16 ------------------------------------------------------------------------------------------------------ Panel 2: Stringer span 28' 4Ls 6 x 6 x 5/8, Web pl 64 x 3/8 Floor beam at 2 4Ls 8 x 6 x 3/4, Web pl 82 x 9/16, 4Cov Pl 14 x 3/4 Laterals 1-24, 2-23 2Ls 6 x 6 x 3/8 ------------------------------------------------------------------------------------------------------ Panel 3: Stringer span 28' 4Ls 6 x 6 x 5/8, Web pl 64 x 3/8 Floor beam at 4 4Ls 8 x 6 x 3/4, Web pl 82 x 9/16, 4Cov Pl 14 x 3/4 Laterals 1-24, 2-23 2Ls 6 x 6 x 3/8 ------------------------------------------------------------------------------------------------------ Panel 4: Stringer span 28' 4Ls 6 x 6 x 5/8, Web pl 64 x 3/8 Floor beam at 6 4Ls 8 x 6 x 3/4, Web pl 82 x 9/16, 4Cov Pl 14 x 3/4 Laterals 1-24, 2-23 2Ls 6 x 6 x 7/16 ------------------------------------------------------------------------------------------------------ Panel 5: Stringer span 28' 4Ls 6 x 6 x 5/8, Web pl 64 x 3/8 Floor beam at 8 4Ls 8 x 6 x 3/4, Web pl 82 x 9/16, 4Cov Pl 14 x 3/4 Laterals 1-24, 2-23 2Ls 6 x 6 x 1/2 ------------------------------------------------------------------------------------------------------ Panel 6: Stringer span 28' 4Ls 6 x 6 x 5/8, Web pl 64 x 3/8 Floor beam at 10 4Ls 8 x 6 x 3/4, Web pl 82 x 9/16, 4Cov Pl 14 x 3/4 Laterals 1-24, 2-23 2Ls 6 x 6 x 5/8 ------------------------------------------------------------------------------------------------------ Panel 7: Stringer span 21'6" 4Ls 6 x 6 x 5/8, Web pl 42 x 3/8 Floor beam at 12 4Ls 8 x 6 x 3/4, Web pl 82 x 9/16, 4Cov Pl 14 x 3/4 Laterals 1-24, 2-23 2Ls 6 x 6 x 5/8 ------------------------------------------------------------------------------------------------------ Panels 8: Stringer span 21'6" 4Ls 6 x 6 x 5/8, Web pl 42 x 3/8 Floor beam at 14 4Ls 8 x 6 x 3/4, Web pl 82 x 1/2, 2Cov 14 x 5/8, 2Cov 14 x 5/16 Laterals 1-24, 2-23 2Ls 6 x 6 x 5/8 Floor beam at 16 4Ls 8 x 6 x 3/4, Web pl 74 x 9/16, 4Cov 14 x 9/16, 2Cov 14 x 1/2
Below are typical sets of stringers and floorbeams.
Top laterals, top lateral struts, sway struts and sway braces typically consist of
4Ls 3 1/2 x 3 1/2 x 3/8, and all but sway braces are doubly laced. Diagonals are
arranged in 4 x-shapes, without posts. Left is a typical cross section through members
7-8 in the blueprints. Note that struts are laced on all angles to form boxes as wide as
the posts; top laterals are laced on one angle only to form beams; sway braces are built
up from plates. In the diagrams below, numbers below 20 correspond; no others do.
Drawings are not to scale with each other. Note that bracing is considerably stronger
at the south portal, where Link Pins 2 attach the Counterweight Link to the leaf.
Portals are built up of 4Ls 4 x 4 x 3/8.