DIVISION OF THE NAVY DEPARTMENT. 



39 



Inclining Expsrimbnts. 

 Method of Comparing and Checking Observations. 



e • anO'/e of/?ee/ 



Otspl.k titn.s 



If inclining moments are platted as ordinates and tangents B, derived from pendulum readings, »re 

 platted as abscissa and a straight line drawn through the points (see sketch) then : 



Inclining moment 



tand 



= scale factor X tan 9 



and 



G. M. ^ 



disp. 



X tan 9 X scale factor. 



Final inclining experiments have to be approved by the Bureau. A copy of the final inclining experiment 

 has to be sent to the vessel by the Superintending Constructor. 



If corrections are necessary write a letter using Form "A." When corrected by Superintending Con- 

 structor, approve using Form "B." 



Date and sign the title page each time around and when ready to approve have Simpson mark "approved" 

 with official stamp. 



In Charge. 



Instruction No. i. Form "A." 

 No. 22III— E. 17. (CM). 



Navy Department, 

 Bureau of Construction and Repair, 

 Washington, D. C. 



From Chief of Bureau, 



To The Superintending Constructor, Fore River Shipbuilding Co., Quincy, Mass. 



Subject: (E)— NORTH DAKOTA; Inclining Experiment Data. 



1. References: 



Sup. Con. Let. March 9, ign, 23-2. 



2. Referring to booklet of inclining experiment data for the NORTH DAKOTA, S. & C. B. No. 00234, 

 forwarded with above letter, the Bureau notes the following : 



Sheet I.— Depth molded is not in accordance with that shown on mold loft lines. Freeboard 

 should be given to the top of deck planking, not to the molded deck line. 



Sheet 6. — Please add a condition similar to Condition II, but including alterations made at Navy 

 Yard, Boston, Mass., in order that there may be a light condition directly comparable with the re- 

 turned weights. 



A note should be added on Sheet 6, calling attention to the new condition. 



