Body and Vehicle Models
These models are encoded using DAVE-ML, an AIAA-developed XML grammar for exchanging dynamic models. (See the DAVE-ML website for more information about this format). Signal / variable names are encoded according to ANSI/AIAA-S-119-2011, "Flight Dynamics Model Exchange Standard," available from the American Institute of Aeronautics and Astronautics.
Atmospheric Spheroid
This body is a spheroid intended for atmospheric scenarios. Mass properties, moments of inertia about the center of gravity, and aerodynamic characteristics are given in the following table.
| Mass Properties | |
|---|---|
| Specified Here: Atmospheric Spheroid Mass Properties (.dml file) | |
| Ixx | 3.6 slug ft2 |
| Iyy | 3.6 slug ft2 |
| Izz | 3.6 slug ft2 |
| Ixy | 0.0 slug ft2 |
| Iyz | 0.0 slug ft2 |
| Izx | 0.0 slug ft2 |
| m | 1 slug |
| x | 0.0 ft |
| y | 0.0 ft |
| z | 0.0 ft |
| Aerodynamic Characteristics | |
| Specified Here: Atmospheric Spheroid Aerodynamic Characteristics (.dml file) | |
| S | 0.1963495 ft2 |
| CL | 0.0 |
| CD | 0.1 |
| CY | 0.0 |
| Cl | 0.0 |
| Cm | 0.0 |
| Cn | 0.0 |
Orbital Spheroid
This body is a spheroid intended for orbital scenarios. Mass properties, moments of inertia about the center of gravity, and aerodynamic characteristics are given in the following table.
| Mass Properties | |
|---|---|
| Specified Here: Orbital Spheroid Mass Properties (.dml file) | |
| Ixx | 2/(5π) kg m2 |
| Iyy | 2/(5π) kg m2 |
| Izz | 2/(5π) kg m2 |
| Ixy | 0.0 kg m2 |
| Iyz | 0.0 kg m2 |
| Izx | 0.0 kg m2 |
| m | 1 kg |
| x | 0.0 m |
| y | 0.0 m |
| z | 0.0 m |
| Aerodynamic Characteristics | |
| Sref | 1.0 m2 |
| CL | 0.0 |
| CD | 0.02 |
| CY | 0.0 |
| Cl | 0.0 |
| Cm | 0.0 |
| Cn | 0.0 |
Brick
The Brick is a standard size of 8 in x 4 in x 2.25 in. Mass properties, moments of inertia about the center of gravity, and aerodynamic characteristics are given in the following table.
| Mass Properties | |
|---|---|
| Specified Here: Brick Mass Properties (.dml file) | |
| Ixx | 0.001894220 slug ft2 |
| Iyy | 0.006211019 slug ft2 |
| Izz | 0.007194665 slug ft2 |
| Ixy | 0.0 slug ft2 |
| Iyz | 0.0 slug ft2 |
| Izx | 0.0 slug ft2 |
| m | 0.155404754 slug |
| x | 0.0 ft |
| y | 0.0 ft |
| z | 0.0 ft |
| Aerodynamic Characteristics | |
| Specified Here: Brick Aerodynamic Characteristics (.dml file) | |
| S | 0.22222 ft2 |
| b | 0.33333 ft |
| c | 0.66667 ft |
| CL | 0.0 |
| CD | 0.01 |
| CY | 0.0 |
| Cl | 0.0 |
| Cm | 0.0 |
| Cn | 0.0 |
| Clp | -1.0 |
| Clr | 0.0 |
| Cmq | -1.0 |
| Cnp | 0.0 |
| Cnr | -1.0 |
Cylinder
The Cylinder has a uniform density and size of 12m x 1m x 1m. Mass properties and moments of inertia about the center of gravity are given in the following table.
| Mass Properties | |
|---|---|
| Specified Here: Cylinder Mass Properties (.dml file) | |
| Ixx | 500.0 kg m2 |
| Iyy | 12,250.0 kg m2 |
| Izz | 12,250.0 kg m2 |
| Ixy | 0.0 kg m2 |
| Iyz | 0.0 kg m2 |
| Izx | 0.0 kg m2 |
| m | 1,000.0 kg |
| x | 6.0 m |
| y | 0.0 m |
| z | 0.0 m |
F-16 Aircraft
Mass properties, moments of inertia about the center of gravity, and aerodynamic characteristics are given in the following table.
| Mass Properties and Aerodynamic Characteristics | |
|---|---|
| Specified Here: F-16 Properties and Characteristics (.zip folder) | |
| S | 300.0 ft2 |
| b | 30.0 ft2 |
| c | 11.32 ft |
| Ixx | 9,496.0 slug ft2 |
| Iyy | 55,814.0 slug ft2 |
| Izz | 63,100.0 slug ft2 |
| Ixy | 0.0 slug ft2 |
| Iyz | 0.0 slug ft2 |
| Izx | 982.0 slug ft2 |
| m | 637.26 slug |
| x | 25% MAC |
| y | 0.0 ft |
| z | 0.0 ft |
Two-Stage Rocket
Mass properties, moments of inertia about the center of gravity, and aerodynamic characteristics are given in the following table.
| First Stage, Mass Properties | ||
|---|---|---|
| Specified Here: Two-Stage Rocket Properties and Characteristics (.zip folder) | ||
| Full | Empty | |
| Ixx | 353,250.0 kg m2 | 150,750.0 kg m2 |
| Iyy | 33,501,637.473461 kg m2 | 10,886,636.572139 kg m2 |
| Izz | 353,250.0 kg m2 | 150,750.0 kg m2 |
| Ixy | 0.0 kg m2 | 0.0 kg m2 |
| Iyz | 0.0 kg m2 | 0.0 kg m2 |
| Izx | 0.0 kg m2 | 0.0 kg m2 |
| m | 314,000.0 kg | 134,000.0 kg |
| x | 16.918790 m | 9.421642 m |
| y | 0.0 m | 0.0 m |
| z | 0.0 m | 0.0 m |
| Second Stage[1], Mass Properties | ||
| Full | Empty | |
| Ixx | 111,375.0 kg m2 | 21,375.0 kg m2 |
| Iyy | 941,063.762626 kg m2 | 212,384.868421 kg m2 |
| Izz | 111,375.0 kg m2 | 21,375.0 kg m2 |
| Ixy | 0.0 kg m2 | 0.0 kg m2 |
| Iyz | 0.0 kg m2 | 0.0 kg m2 |
| Izx | 0.0 kg m2 | 0.0 kg m2 |
| m | 99,000.0 kg | 19,000.0 kg |
| x | 4.797980 m | 3.947368 m |
| y | 0.0 m | 0.0 m |
| z | 0.0 m | 0.0 m |
International Space Station
Mass properties, moments of inertia about the center of gravity, and aerodynamic characteristics are given in the following table. Aerodynamic characteristics were only used for the Orbital Full check-case.
| Mass Properties | |
|---|---|
| Specified Here: ISS Mass Properties (.dml file) | |
| Ixx | 102,000,000.0 kg m2 |
| Iyy | 91,000,000.0 kg m2 |
| Izz | 164,000,000.0 kg m2 |
| Ixy | 6,960,000.0 kg m2 |
| Iyz | -590,000.0 kg m2 |
| Izx | 5,480,000.0 kg m2 |
| m | 400,000.0 kg |
| x | -3.0 m |
| y | -1.5 m |
| z | 4.0 m |
| Aerodynamic Characteristics | |
| Sref | 1,400.0 m2 |
| CL | 0.0 |
| CD | 2.0 |
| CY | 0.0 |
| Cl | 0.0 |
| Cm | 0.0 |
| Cn | 0.0 |
Errata
Below is the list of erratum that are relevant to changes made on this page that no longer match the report. The full list can be found on the Home Page.
[1] NESC Report Typo on Page 35, Table 16, two right columns should be "Stage 2": Volume II Report ↩︎