SAWE Historical Standards and RPs https://www.sawe.org Society of Allied Weight Engineers, Inc. Mon, 15 Jun 2026 22:05:14 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.1 231197347 SAWE RP-12, 2002: Weight Control Technical Requirements for Naval Surface Ships https://www.sawe.org/product/sawe-rp-12-2002/ Wed, 06 Apr 2022 03:11:31 +0000 https://www.sawe.org//?post_type=product&p=5749

Superseded by SAWE STD M-1, 2023: Weight Control Technical Requirements for Naval Surface Ships

This recommended practice provides weight control technical requirements for all phases of surface ships acquisition (i.e., preliminary design through detail design and construction) and service life and also describes different types of weight estimates, reports, and weight control procedures including a weight classification system which assists in achieving uniformity and standardizing weight reporting. The requirements in this practice apply (either in part or in total) only as specified in a contractual agreement (e.g., contract clause, purchase order, etc.).
   
 ]]>

Superseded by SAWE STD M-1, 2023: Weight Control Technical Requirements for Naval Surface Ships

This recommended practice provides weight control technical requirements for all phases of surface ships acquisition (i.e., preliminary design through detail design and construction) and service life and also describes different types of weight estimates, reports, and weight control procedures including a weight classification system which assists in achieving uniformity and standardizing weight reporting. The requirements in this practice apply (either in part or in total) only as specified in a contractual agreement (e.g., contract clause, purchase order, etc.).
   
 ]]> 5749 SAWE RP-11, 2000: Mass Properties Control for Space Vehicles https://www.sawe.org/product/sawe-rp-11-2000/ Wed, 06 Apr 2022 03:11:30 +0000 https://www.sawe.org//?post_type=product&p=5746 Superseded by SAWE RP A-3, 2016: Mass Properties Control for Space Systems This recommended practice is provided by the SAWE to provide guidelines for monitoring, controlling, and reporting mass properties of spacecraft, launch vehicles, and exo-atmospheric missiles. This recommended practice is based on Reference 1, and incorporates the updates that were proposed for Revision A of that document. Beneficial comments (recommendations, additions, and deletions) and any pertinent data that may be of use in improving this document should be submitted to the above address. This recommended practice establishes uniform procedures for the control, determination, and documentation of mass properties of space vehicles and their subsystems and components. This document is derived from Reference 1 to serve as a continuing, maintained, industry recommended practice. As such, it contains some sections that are applicable primarily to United States Government space vehicle development and acquisition programs. Other sections are more general in nature, describing terminology, processes, and procedures that are generally accepted in the industry, and reflect sound mass properties engineering practices in the development and production of space vehicles. This recommended practice is, therefore, applicable for mass properties control of all space vehicle development and acquisition, government and private.    ]]> Superseded by SAWE RP A-3, 2016: Mass Properties Control for Space Systems This recommended practice is provided by the SAWE to provide guidelines for monitoring, controlling, and reporting mass properties of spacecraft, launch vehicles, and exo-atmospheric missiles. This recommended practice is based on Reference 1, and incorporates the updates that were proposed for Revision A of that document. Beneficial comments (recommendations, additions, and deletions) and any pertinent data that may be of use in improving this document should be submitted to the above address. This recommended practice establishes uniform procedures for the control, determination, and documentation of mass properties of space vehicles and their subsystems and components. This document is derived from Reference 1 to serve as a continuing, maintained, industry recommended practice. As such, it contains some sections that are applicable primarily to United States Government space vehicle development and acquisition programs. Other sections are more general in nature, describing terminology, processes, and procedures that are generally accepted in the industry, and reflect sound mass properties engineering practices in the development and production of space vehicles. This recommended practice is, therefore, applicable for mass properties control of all space vehicle development and acquisition, government and private.    ]]> 5746 SAWE RP-8, 1997: Weight and Balance Data Reporting Forms for Aircraft (including Rotorcraft and Air-Breathing Unmanned Aerial Vehicles) https://www.sawe.org/product/sawe-rp-8-1997/ Wed, 06 Apr 2022 03:11:30 +0000 https://www.sawe.org//?post_type=product&p=5748 Superseded by SAWE RP A-8, 2015a: Weight and Balance Data Reporting Forms for Aircraft (including Rotorcraft and Air-Breathing Unmanned Aerial Vehicles) This document provides standard weight forms, Parts I, II, and III hereof, for reporting of weight and balance data for aircraft (including rotorcraft), states the principles followed in the formulation of these forms, and furnishes instructions where necessary for uniform compilation of the required weight and descriptive data. In particular, this document provides the formats to be used in preparation of Group Weight Statements, Detail Weight Statements and Status Reports as defined by SAWE Recommended Practice No. 7 and U.S. Military Data Item Description DI- MGMT-81501. This document was derived from U.S. Military Specification MIL-STD-1374A.   Sufficient detail is included to cover the majority of components for most fixed wing, rotary wing, and V/STOL type aircraft. Blank spaces are provided for “write-ins” to detail weights for advanced design vehicles, hypersonic structures, projected propulsion systems, etc. Care should be taken before adding a “write-in” to ascertain that a reasonably appropriate term is not already contained in the forms.    ]]> Superseded by SAWE RP A-8, 2015a: Weight and Balance Data Reporting Forms for Aircraft (including Rotorcraft and Air-Breathing Unmanned Aerial Vehicles) This document provides standard weight forms, Parts I, II, and III hereof, for reporting of weight and balance data for aircraft (including rotorcraft), states the principles followed in the formulation of these forms, and furnishes instructions where necessary for uniform compilation of the required weight and descriptive data. In particular, this document provides the formats to be used in preparation of Group Weight Statements, Detail Weight Statements and Status Reports as defined by SAWE Recommended Practice No. 7 and U.S. Military Data Item Description DI- MGMT-81501. This document was derived from U.S. Military Specification MIL-STD-1374A.   Sufficient detail is included to cover the majority of components for most fixed wing, rotary wing, and V/STOL type aircraft. Blank spaces are provided for “write-ins” to detail weights for advanced design vehicles, hypersonic structures, projected propulsion systems, etc. Care should be taken before adding a “write-in” to ascertain that a reasonably appropriate term is not already contained in the forms.    ]]> 5748 SAWE RP-17, 2009: Weight Distribution and Moments of Inertia for Marine Vehicles https://www.sawe.org/product/sawe-rp-17-2009/ Wed, 06 Apr 2022 03:11:29 +0000 https://www.sawe.org//?post_type=product&p=5744 Superseded by SAWE RP M-5, 2009: Weight Distribution and Moments of Inertia for Marine Vehicles This Recommended Practice documents the preferred methods of estimating and calculating the distributive mass properties of marine vehicles at various stages of weight database maturity. Distributive mass properties include mass (weight) distributions and mass (weight) moments of inertia which are dependent on the mass distributions. These mass moments of inertia are typically reported as Gyradii.   At the earliest stages of design parametric methods are required to estimate distributive mass properties. These parametric methods are briefly discussed and supplied in the appendices; however, the original sources are referenced for complete application and applicability.  ]]> Superseded by SAWE RP M-5, 2009: Weight Distribution and Moments of Inertia for Marine Vehicles This Recommended Practice documents the preferred methods of estimating and calculating the distributive mass properties of marine vehicles at various stages of weight database maturity. Distributive mass properties include mass (weight) distributions and mass (weight) moments of inertia which are dependent on the mass distributions. These mass moments of inertia are typically reported as Gyradii.   At the earliest stages of design parametric methods are required to estimate distributive mass properties. These parametric methods are briefly discussed and supplied in the appendices; however, the original sources are referenced for complete application and applicability.  ]]> 5744 SAWE RP M-4, 2012: Vendor Weight Control for the Marine Industry https://www.sawe.org/product/sawe-rp-m-4-2012/ Wed, 06 Apr 2022 03:11:29 +0000 https://www.sawe.org//?post_type=product&p=5745  
 
  This Recommended Practice is sponsored by the Society of Allied Weight Engineers Marine Systems Government - Industry Workshop. Its purpose is to supplement Recommended Practice 12 (Reference 1) which provides the requirements for weight control, Recommended Practice 13 (Reference 2) which defines a standard coordinate system for reporting mass properties information, and Recommended Practice 14 (Reference 3) which describes best practices and industry conventions for estimating and determining mass properties for ships.   This Recommended Practice focuses on the role that third party suppliers play in the marine industry practices which best satisfy the requirements for a comprehensive weight control program. As a Recommended Practice, this document is advisory in nature; however, it may be invoked as specified in a contractual agreement such as a design and construction contract or a purchase order. It is intended to applicable both to the suppliers of builder-furnished equipment and owner- or Government- furnished equipment for the marine industry.   The primary focus of this document is on the acquisition stage of a ship’s life rather than its in-service stage although many of the elements presented may be applied throughout the life of the vessel.   This Recommended Practice is intended for use by ship designers/builders and the marine vendor community. For the designer/builder, it outlines an effective methodology for involving marine industry suppliers in the shipyard’s comprehensive weight control plan. For the vendors of shipboard equipment, it provides a framework of what the shipyard needs in terms of mass properties input to effectively manage the overall mass properties of the ship. It is hoped that this Recommended Practice will help establish the foundation for a productive ship designer/builder – marine supplier working relationship.  
 
   ]]>  
 
  This Recommended Practice is sponsored by the Society of Allied Weight Engineers Marine Systems Government - Industry Workshop. Its purpose is to supplement Recommended Practice 12 (Reference 1) which provides the requirements for weight control, Recommended Practice 13 (Reference 2) which defines a standard coordinate system for reporting mass properties information, and Recommended Practice 14 (Reference 3) which describes best practices and industry conventions for estimating and determining mass properties for ships.   This Recommended Practice focuses on the role that third party suppliers play in the marine industry practices which best satisfy the requirements for a comprehensive weight control program. As a Recommended Practice, this document is advisory in nature; however, it may be invoked as specified in a contractual agreement such as a design and construction contract or a purchase order. It is intended to applicable both to the suppliers of builder-furnished equipment and owner- or Government- furnished equipment for the marine industry.   The primary focus of this document is on the acquisition stage of a ship’s life rather than its in-service stage although many of the elements presented may be applied throughout the life of the vessel.   This Recommended Practice is intended for use by ship designers/builders and the marine vendor community. For the designer/builder, it outlines an effective methodology for involving marine industry suppliers in the shipyard’s comprehensive weight control plan. For the vendors of shipboard equipment, it provides a framework of what the shipyard needs in terms of mass properties input to effectively manage the overall mass properties of the ship. It is hoped that this Recommended Practice will help establish the foundation for a productive ship designer/builder – marine supplier working relationship.  
 
   ]]> 5745 SAWE RP-1, 1982: Requirements for Aircraft On Board Weight and Balance System https://www.sawe.org/product/sawe-rp-1-1982/ Wed, 06 Apr 2022 03:11:14 +0000 https://www.sawe.org//?post_type=product&p=5739 Superseded by SAWE RP A-1, 1982a: Requirements for Aircraft On Board Weight and Balance System In the immediate future, the On Board Weight and Balance System (OBWBS) application will probably only function as a check of the conventional weight and balance manifest. However, the intent of this specification is to provide a primary system of weight and balance control which is supported by a manifest system. Eventually, an OBWBS may be totally automatic providing a computerized check of all the mass property limitations involved; however, that kind of OBWBS hardware is currently beyond the scope of this document. The actual application of this specification is, of course, up to the user.  ]]> Superseded by SAWE RP A-1, 1982a: Requirements for Aircraft On Board Weight and Balance System In the immediate future, the On Board Weight and Balance System (OBWBS) application will probably only function as a check of the conventional weight and balance manifest. However, the intent of this specification is to provide a primary system of weight and balance control which is supported by a manifest system. Eventually, an OBWBS may be totally automatic providing a computerized check of all the mass property limitations involved; however, that kind of OBWBS hardware is currently beyond the scope of this document. The actual application of this specification is, of course, up to the user.  ]]> 5739 SAWE RP O-1, 2017: Offshore Terminology https://www.sawe.org/product/sawe-rp-o-1-2017/ Wed, 06 Apr 2022 03:11:14 +0000 https://www.sawe.org//?post_type=product&p=5737 Scope   At the onset of each project, a similar, weight management specific, definitions document should be issued to clarify weight management terminology to be used on that project. Efforts should be made to utilize SAWE standard definitions. However, this project specific document may take into consideration specific terminology used in client specifications and terms common to governing bodies with jurisdiction. Where there is conflict between SAWE recommended terminology and client terminology, work with the client to come to a consensus on what definitions will be used. The agreed upon definition shall be recorded in the Weight Management Definitions document prior to it being issued for project use.   Purpose   To ensure consistency across all weight management documents, a centralized Weight Management Definitions document has been created. This document starts with weight management terms as defined in ISO 19901-5: 2003. Additional terms commonly used for weight management but not defined by ISO are also defined herein and, to the extent possible, have been defined per their most common industry usage.      ]]> Scope   At the onset of each project, a similar, weight management specific, definitions document should be issued to clarify weight management terminology to be used on that project. Efforts should be made to utilize SAWE standard definitions. However, this project specific document may take into consideration specific terminology used in client specifications and terms common to governing bodies with jurisdiction. Where there is conflict between SAWE recommended terminology and client terminology, work with the client to come to a consensus on what definitions will be used. The agreed upon definition shall be recorded in the Weight Management Definitions document prior to it being issued for project use.   Purpose   To ensure consistency across all weight management documents, a centralized Weight Management Definitions document has been created. This document starts with weight management terms as defined in ISO 19901-5: 2003. Additional terms commonly used for weight management but not defined by ISO are also defined herein and, to the extent possible, have been defined per their most common industry usage.      ]]> 5737 SAWE RP-13, 2009: Standard Coordinate System for Reporting Mass Properties of Marine Vehicles https://www.sawe.org/product/sawe-rp-13-2009/ Wed, 06 Apr 2022 03:11:14 +0000 https://www.sawe.org//?post_type=product&p=5738 Superseded by SAWE RP M-2, 2009: Standard Coordinate System for Reporting Mass Properties of Marine Vehicles The scope of this Recommended Practice is to establish acceptable three-coordinate reference systems for marine vehicles. Each coordinate system will include a defined origin, specified axes of rotation, and a sign convention in order to establish uniformity in mass property data collection and reporting. The use of a standard coordinate system will minimize the possibility of error due to differences in coordinate systems used by suppliers, designers, builders, regulatory bodies, or owners. These coordinate systems will be used in the determination of centers-of-gravity. They will also be used to determine weight moments of inertia as they relate to the three rotational degrees of freedom: roll, pitch and yaw.  ]]> Superseded by SAWE RP M-2, 2009: Standard Coordinate System for Reporting Mass Properties of Marine Vehicles The scope of this Recommended Practice is to establish acceptable three-coordinate reference systems for marine vehicles. Each coordinate system will include a defined origin, specified axes of rotation, and a sign convention in order to establish uniformity in mass property data collection and reporting. The use of a standard coordinate system will minimize the possibility of error due to differences in coordinate systems used by suppliers, designers, builders, regulatory bodies, or owners. These coordinate systems will be used in the determination of centers-of-gravity. They will also be used to determine weight moments of inertia as they relate to the three rotational degrees of freedom: roll, pitch and yaw.  ]]> 5738 SAWE RP-6, 1999: Standard Coordinate Systems for Reporting the Mass Properties of Flight Vehicles https://www.sawe.org/product/sawe-rp-6-1999/ Wed, 06 Apr 2022 03:11:13 +0000 https://www.sawe.org//?post_type=product&p=5734 Superseded by SAWE STD A-6, 2023: Standard Coordinate Systems for Reporting the Mass Properties of Flight Vehicles Anyone who has worked in the mass properties field for any length of time knows the problem: one person's X is another person's Y. Since the numerical values of the mass properties of an object are entirely dependent on the coordinate system chosen, it is essential that engineers include a precise definition of their coordinate system along with the mass properties data. To minimize confusion and to make the job of defining your coordinate system easier, the SAWE has adopted two standard coordinate systems: Standard "A" is used for aircraft or any other vehicle which "flies" Standard "S" is used for objects which orbit the earth The intent of this Standard is to reduce errors and costs associated with improperly defined coordinate axis systems. Although mass properties engineers will often be forced to use coordinate systems dictated by other parties, the SAWE strongly encourages you to use one of these standards whenever you have the freedom to choose your own coordinate system. The success of a standard of this type depends on its widespread use. You are encouraged to make copies of this standard and to attempt to influence flight dynamics engineers and others at an early stage of the design of a flight vehicle. It is very difficult to change coordinate definitions once a project in underway.  ]]> Superseded by SAWE STD A-6, 2023: Standard Coordinate Systems for Reporting the Mass Properties of Flight Vehicles Anyone who has worked in the mass properties field for any length of time knows the problem: one person's X is another person's Y. Since the numerical values of the mass properties of an object are entirely dependent on the coordinate system chosen, it is essential that engineers include a precise definition of their coordinate system along with the mass properties data. To minimize confusion and to make the job of defining your coordinate system easier, the SAWE has adopted two standard coordinate systems: Standard "A" is used for aircraft or any other vehicle which "flies" Standard "S" is used for objects which orbit the earth The intent of this Standard is to reduce errors and costs associated with improperly defined coordinate axis systems. Although mass properties engineers will often be forced to use coordinate systems dictated by other parties, the SAWE strongly encourages you to use one of these standards whenever you have the freedom to choose your own coordinate system. The success of a standard of this type depends on its widespread use. You are encouraged to make copies of this standard and to attempt to influence flight dynamics engineers and others at an early stage of the design of a flight vehicle. It is very difficult to change coordinate definitions once a project in underway.  ]]> 5734 SAWE RP O-2, 2016: Coordinate Reference System for Offshore Systems https://www.sawe.org/product/sawe-rp-o-2-2016/ Wed, 06 Apr 2022 03:11:13 +0000 https://www.sawe.org//?post_type=product&p=5735 Superseded by SAWE RP O-2, 2024: Coordinate Reference System for Offshore Systems Scope The scope of this Recommended Practice is to establish acceptable three-coordinate reference systems for off shore hydrocarbon (or other) facilities. Each coordinate system will include a defined origin, specified axes of rotation, and a sign convention in order to establish uniformity in mass property data collection and reporting. The use of a standard coordinate system will minimize the possibility of error due to differences in coordinate systems used by suppliers, designers, builders, regulatory bodies, or owners. These coordinate systems will be used in the determination of centers-of-gravity. They will also be used to determine weight moments of inertia as they relate to the three rotational degrees of freedom: roll, pitch and yaw.   Purpose   A shared or common set of coordinate system will make data transfer between different weight engineering groups on a program or project simpler.  ]]> Superseded by SAWE RP O-2, 2024: Coordinate Reference System for Offshore Systems Scope The scope of this Recommended Practice is to establish acceptable three-coordinate reference systems for off shore hydrocarbon (or other) facilities. Each coordinate system will include a defined origin, specified axes of rotation, and a sign convention in order to establish uniformity in mass property data collection and reporting. The use of a standard coordinate system will minimize the possibility of error due to differences in coordinate systems used by suppliers, designers, builders, regulatory bodies, or owners. These coordinate systems will be used in the determination of centers-of-gravity. They will also be used to determine weight moments of inertia as they relate to the three rotational degrees of freedom: roll, pitch and yaw.   Purpose   A shared or common set of coordinate system will make data transfer between different weight engineering groups on a program or project simpler.  ]]> 5735