File Data for all sections of the LMS Gantry Support Frame.

signal_gantry_lms_pratt_truss_side_ladder_end section_Drawing1

Files saved at dpi =  112 x 112 pixels/in

File sizes  =  140 x 97  pixels

Over all longest dimension 7ft 9.85in (140 pixels) is measured horizontally, and the measurement is taken, left to right, across the length from the left-hand edge of the wooden planking to the outer edge of the safety hand rail on the right.

The measurement you should get is:

 Scale = 31.2833 mm

 Proto = 7ft 9.85in  (7.820825ft)

The ‘Sketchboard’ scaling factor becomes:

140 / 7.820825  (140 / 7ft 9.85in) = 17.9009, rounding  = pf1790

 Image height scale = 21.4333 mm

 Proto = 5ft 4.23in  (5.358325ft)

File Name:

signal_gantry_lms_pratt_truss_side_ladder_end section_7ft_7p85in_x_5ft_4p23in_v1_a1a_brian_nicholls_z2z_pf1790

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signal_gantry_lms_pratt_truss_short_middle_section_Drawing1

Files saved at dpi =  114 x 114 pixels/in

File sizes  =  66x 63  pixels

Over all longest dimension 3ft 8.32in (66 pixels) is measured horizontally, and the measurement is taken, left to right, across the length from the left-hand outer edge of the grey underplating to the outer edge of the wooden planking on the right.

The measurement you should get is:

 Scale = 14.7733 mm

 Proto = 3ft 8.32in  (3.693325ft)

The ‘Sketchboard’ scaling factor becomes:

66 / 3.693325  (66 / 3ft 8.32in) = 17.8701, rounding  = pf1787

 Image height scale = 14.1167 mm

 Proto = 3ft 6.35in  (3.529175ft)

File Name:

signal_gantry_lms_pratt_truss_short_middle_section_3ft_8p32in_x_3ft_6p35in_v1_a1a_brian_nicholls_z2z_pf1787

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signal_gantry_lms_pratt_truss_non_ladder_end section_Drawing1

Files saved at dpi =  112 x 112 pixels/in

File sizes  =  138x 64  pixels

Over all longest dimension 7ft 9.81in (138 pixels) is measured horizontally, and the measurement is taken, left to right, across the length from the left-hand outer edge of the safety hand rail to the outer edge of the wooden planking on the right.

The measurement you should get is:

 Scale = 30.70 mm

 Proto = 7ft 8.1in  (7.675ft)

The ‘Sketchboard’ scaling factor becomes:

138 /7.675  (66 / 7ft 8.1in) = 17.9805, rounding  = pf1798

 Image height scale = 14.1167 mm

 Proto = 3ft 6.35in  (3.529175ft)

File Name:

signal_gantry_lms_pratt_truss_non_ladder_end section_7ft_8p1in_x_3ft_6p35in_v1_a1a_brian_nicholls_z2z_pf1798

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signal_gantry_lms_pratt_truss_long_middle_section_Drawing1

Files saved at dpi =  112 x 112 pixels/in

File sizes  =  185x 64  pixels

Over all longest dimension 10ft 5.05in (185 pixels) is measured horizontally, and the measurement is taken, left to right, across the length from the left-hand outer edge of the grey underplating to the outer edge of the wooden planking on the right.

The measurement you should get is:

 Scale = 41.683 mm

 Proto = 10ft 5.05in  (10.42075ft)

The ‘Sketchboard’ scaling factor becomes:

185 / 10.42075  (185 / 10ft 5.05in) = 17.7530, rounding  = pf1775

 Image height scale = 14.1167 mm

 Proto = 3ft 6.35in  (3.529175ft)

File Name:

signal_gantry_lms_pratt_truss_long_middle_section_10ft_5p05in_x_3ft_6p35in_v1_a1a_brian_nicholls_z2z_pf1775

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signal_gantry_lms_pratt_truss_end_ladder_end section_Drawing1

Files saved at dpi =  112 x 112 pixels/in

File sizes  =  168 x 64  pixels

Over all longest dimension 9ft 5.2in (168 pixels) is measured horizontally, and the measurement is taken, left to right, across the length from the left-hand edge line of the wooden planking to the outermost edge of the ladder rail on the right.

The measurement you should get is:

 Scale = 37.7333 mm

 Proto = 9ft 5.2in  (9.433325ft)

The ‘Sketchboard’ scaling factor becomes:

168 / 9.433325  (168 / 9ft 5.2in) = 17.8092, rounding  = pf1781

 Image height scale = 14.1167 mm

 Proto = 3ft 6.35in  (3.529175ft)

File Name:

signal_gantry_lms_pratt_truss_end_ladder_end section_9ft_5p2in_x_3ft_6p35in_v1_a1a_brian_nicholls_z2z_pf1781

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