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)
Ixx3.6 slug ft2
Iyy3.6 slug ft2
Izz3.6 slug ft2
Ixy0.0 slug ft2
Iyz0.0 slug ft2
Izx0.0 slug ft2
m1 slug
x0.0 ft
y0.0 ft
z0.0 ft
Aerodynamic Characteristics
Specified Here: Atmospheric Spheroid Aerodynamic Characteristics (.dml file)
S0.1963495 ft2
CL0.0
CD0.1
CY0.0
Cl0.0
Cm0.0
Cn0.0

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)
Ixx2/(5π) kg m2
Iyy2/(5π) kg m2
Izz2/(5π) kg m2
Ixy0.0 kg m2
Iyz0.0 kg m2
Izx0.0 kg m2
m1 kg
x0.0 m
y0.0 m
z0.0 m
Aerodynamic Characteristics
Sref1.0 m2
CL0.0
CD0.02
CY0.0
Cl0.0
Cm0.0
Cn0.0

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)
Ixx0.001894220 slug ft2
Iyy0.006211019 slug ft2
Izz0.007194665 slug ft2
Ixy0.0 slug ft2
Iyz0.0 slug ft2
Izx0.0 slug ft2
m0.155404754 slug
x0.0 ft
y0.0 ft
z0.0 ft
Aerodynamic Characteristics
Specified Here: Brick Aerodynamic Characteristics (.dml file)
S0.22222 ft2
b0.33333 ft
c0.66667 ft
CL0.0
CD0.01
CY0.0
Cl0.0
Cm0.0
Cn0.0
Clp-1.0
Clr0.0
Cmq-1.0
Cnp0.0
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)
Ixx500.0 kg m2
Iyy12,250.0 kg m2
Izz12,250.0 kg m2
Ixy0.0 kg m2
Iyz0.0 kg m2
Izx0.0 kg m2
m1,000.0 kg
x6.0 m
y0.0 m
z0.0 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)
S300.0 ft2
b30.0 ft2
c11.32 ft
Ixx9,496.0 slug ft2
Iyy55,814.0 slug ft2
Izz63,100.0 slug ft2
Ixy0.0 slug ft2
Iyz0.0 slug ft2
Izx982.0 slug ft2
m637.26 slug
x25% MAC
y0.0 ft
z0.0 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)
FullEmpty
Ixx353,250.0 kg m2150,750.0 kg m2
Iyy33,501,637.473461 kg m210,886,636.572139 kg m2
Izz353,250.0 kg m2150,750.0 kg m2
Ixy0.0 kg m20.0 kg m2
Iyz0.0 kg m20.0 kg m2
Izx0.0 kg m20.0 kg m2
m314,000.0 kg134,000.0 kg
x16.918790 m9.421642 m
y0.0 m0.0 m
z0.0 m0.0 m
Second Stage[1], Mass Properties
FullEmpty
Ixx111,375.0 kg m221,375.0 kg m2
Iyy941,063.762626 kg m2212,384.868421 kg m2
Izz111,375.0 kg m221,375.0 kg m2
Ixy0.0 kg m20.0 kg m2
Iyz0.0 kg m20.0 kg m2
Izx0.0 kg m20.0 kg m2
m99,000.0 kg19,000.0 kg
x4.797980 m3.947368 m
y0.0 m0.0 m
z0.0 m0.0 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)
Ixx102,000,000.0 kg m2
Iyy91,000,000.0 kg m2
Izz164,000,000.0 kg m2
Ixy6,960,000.0 kg m2
Iyz-590,000.0 kg m2
Izx5,480,000.0 kg m2
m400,000.0 kg
x-3.0 m
y-1.5 m
z4.0 m
Aerodynamic Characteristics
Sref1,400.0 m2
CL0.0
CD2.0
CY0.0
Cl0.0
Cm0.0
Cn0.0

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 ↩︎