Circle E, is a ABS classification symbol that signifies that the equipment of anchors and chain cables of the vessel is in compliance with the requirements of the Rules.
M - This symbol signifies that the anchor, chains or wire rope, which have been specified by the Owner for position mooring, have been tested in accordance with the specifications of the Owner and in the presence of a Surveyor. It is applicable to ship type displacement hull designed for offshore operation as well as to multiple hull design. The symbol M is placed after the classification notation.
I assume that the "diameter of a triangle" means the diameter of the smallest circle containing it. Assume the triangle has sides a, b and c and angles A, B and C (where angle A is opposite side a etc.). Calculate angle A from the law of cosines. Then: a^2 = b^2 +c^2 - 2*b*c*cos(A) so: A = arccos((b^2 + c^2 - a^2)/(2*b*c)) -------------------(1) Then, using the usual construction for finding the center, O, of the circumscribed circle (i.e. a perpendicular bisectors of each side is constructed and all three meet at point O) we can draw the radius from O to A. This will divide angle A into two smaller angles (in some cases one angle will be larger than A and the other will be negative, but they will still add up to angle A). Using simple trigonometric formulas we can calculate angle A by adding the two together. The result then is: A = arccos(b/(2*r)) + arccos(c/(2*r)) -----------------------------(2) If we then equate the right hand sides of (1) and (2) we get an equation involving a, b, c and r. These can be solved to find r in terms of a,b and c. I used the easy way using Maple and got the result shown below. r = abs[sqr(-b^4+2*b^2*c^2+2*b^2*a^2-c^4+2*c^2*a^2-a^4)*a*c*b]/ [ b^4-2*b^2*c^2-2*b^2*a^2+c^4-2*c^2*a^2+a^4] The diameter is, of course, 2*r. This answer checks the cases for an equilateral triangle and for a 3,4,5 right triangle, each of which is easy to do by much simpler methods.
ABS stands for Amateur Butt Slapping.
abs cm mean
Tailshaft Condition Monitoring (TCM) - This notation is assigned to vessels with tailshafts specifically arranged with oil-lubricated stern tube bearings, complying with the requirements of the ABS Guide for Classification Notation Tailshaft Condition Monitoring (TCM).
The ABS class notation ABCU refers to the classification of a vessel's hull and machinery by the American Bureau of Shipping (ABS). The "A" indicates the type of ship, "B" denotes the specific design or construction criteria, "C" signifies compliance with regulatory standards, and "U" indicates that the vessel is intended for unrestricted service. This notation ensures that the vessel meets safety and operational standards for its intended use.
This non-mandatory notation is assigned to indicate that drilling systems and equipment comply with the ABS Guide for the Certification of Drilling Systems. The symbol À will be omitted if the drilling systems and equipment, although complying with the Guide, have not been manufactured and installed under survey to ABS.
In the context of ABS (Australian Bureau of Statistics) class notation, "ACC" refers to "Accommodation and Food Services." This classification encompasses businesses involved in providing accommodation for visitors and serving meals, beverages, or other refreshments. It is part of a broader system used to categorize economic activities for statistical purposes, aiding in the analysis of the economy.
M - This symbol signifies that the anchor, chains or wire rope, which have been specified by the Owner for position mooring, have been tested in accordance with the specifications of the Owner and in the presence of a Surveyor. It is applicable to ship type displacement hull designed for offshore operation as well as to multiple hull design. The symbol M is placed after the classification notation.
AMS is a classification notation that, together with the Maltese Cross + symbol, indicates that a vessel's machinery, boilers and systems have been constructed and installed under survey by the American Bureau of Shipping (ABS) in accordance with the requirements of the ABS Rules. The + AMS notation is intended for all new construction of ABS classed self-propelled vessels and offshore units. The AMS notation, without the Maltese Cross + symbol, is assigned to self-propelled vessels and offshore units for which the machinery, boilers and systems have not been constructed and installed under survey by the Bureau, but are found satisfactory with regard to ABS requirements.
The ABS class notation "A1 Tank Barge" indicates that a barge has been built and maintained to meet the standards set by the American Bureau of Shipping (ABS). The "A1" signifies that the vessel has been surveyed and approved for its design and construction, while "Tank Barge" specifies its purpose as a vessel designed to carry liquid cargo in bulk. This classification ensures compliance with safety, structural, and operational standards for marine vessels.
ABS class notation SPMA refers to a specific classification of a ship’s structural integrity as per the American Bureau of Shipping (ABS) standards. SPMA stands for "Special Purpose Mobile Offshore Unit," indicating that the vessel is designed for specialized operations in offshore environments. This classification ensures that the ship meets certain safety and operational criteria, suitable for its intended use in the marine industry.
SafeHull Construction Monitoring (SHCM) - This notation is assigned to vessels that have been found in compliance with Part 5C, Appendix 1, "Guide for SafeHull Construction Monitoring Program" of the ABS Rules for Building and Classing Steel Vessels. This notation is required for Oil or Fuel Oil Carriers, Bulk or Ore Carriers, Combination Carriers and Container Carriers designed to Part 5C, Chapters 1, 3 and 5 of ABS Rules for Building and Classing Steel Vessels, respectively. The SHCM notation is also required for Membrane Tank LNG Carriers that have been designed in accordance with the ABS Guide for Building and Classing Membrane Tank LNG Vessels and assigned the SafeHull notation SH and for Liquefied Petroleum Gas Carriers with Type-A Independent Tanks that have been design in accordance with the ABS Guide for Building and Classing Liquefied Petroleum Gas Carriers with Type-A Independent Tanks and assigned the SafeHull notation SH.
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