Pilot House Stairway Ladder intersects Bridge Deck at FR 8 -1/2 (Dwg # 623 -6201038 -02 Elevation 14 -B) Ladder intersects Main Deck 7. 25” fwd of FR 10 (Dwg # 623 -6201038 -02 Elevation 14 B) Longitudinal Bulkhead on centerline (Dwg # 150 -6200902 -01) Longitudinal Bulkhead 36” starboard of centerline (Dwg # 150 -6200902 -01) Transverse Bulkhead at Fr 8 (Dwg # 150 -6200901 -01) Transverse Bulkhead at Fr 10 -3/4 (Dwg # 150 -6200901 -01) Main Deck Surface – with sheer (Dwg # 130 -6200898 -01) Bridge Deck Surface – with sheer (Dwg # 150 -6200899 -01) Frame 10 – 3/4 Frame 8 – 1/2 21'-6 3/8“ A BL /8“ 5 '-10 13 1. 2. 3. 4. 5. L AB 7 ¼" Fwd of Frame 10 Drawing 1038 -2 was used to calculate the location of the back of the Pilot House Stairway From the photograph, the front of the stairway appears to ¼” forward of the cutout. The angle of the stairway was calculated to be 54. 8 degrees. The depth of the tread is approximately 8 – 9/16”. The cover on the stairs is about ¼”. This puts the back of the stairwell approximately 9” aft of the cutout which is 24" aft of FR 8 (FR 8 ½). The stairwell is in a space that ends at a bulkhead 3' aft of FR 10 (FR 10 ¾). The back of the stairwell intersects the maindeck 7 ¼" fwd of FR 10
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