1. AeroArts LLC Status
Aerospace Control and Guidance Systems Committee Meeting No. 95
Salt Lake City, March 2005
Small business, began operations 1999
contracts with NASA, Boeing, Lockheed, (Navair), other small businesses
Purpose: Promote & develop advanced flight dynamics test and analysis
Applied to: Maneuverability, Flight Control, Handling Qualities, Safety…
John Hodgkinson
Boeing Fellow, manager Stability, Control, Flying Qualities, Flight control and technology organizations
Brooke Smith
Chief Scientist, Eidetics, aircraft and missile aerodynamics, numerous SBIR successes
AeroArts LLC, PO Box 2909
Palos Verdes Peninsula CA

2. Three Pillars of Modern Water Tunnel Usage
Flow Visualization
Motion Control
Force Measurement
outstanding visualization of fluid dynamics
concurrent, automated image capture
image analysis, feature extraction
robust, stiff
small (2” x 0.5”)
high sensitivity (< 1 gm)
direct real-time aerodynamics
6-dof, rotation + translation
large vertical throw
extremely stiff
unlimited and arbitrary motions
This is where it all comes together, the three pillars
Advantages:
Outstanding flow visualization
Force measurement
“Unlimited” motions possible
Self-consistent tests -- Assumption Checking
Separation of structural and aerodynamic frequencies
Simple dynamic tares
Possible to test any motion or maneuver. What can it do for you?
AEROARTS LLC
Copyright ® 2005 AeroArts LLC All rights reserved.

3. Destructive Expendable (DEX) Test
Problem- Accurate DEX simulation requires dynamic, unsteady terms.
Solution- Synthetic Free Flight integrates :
Water tunnel (advantage: time slows down)
AeroArts Scorpio 6 degree-of-freedom dynamic model support & software...
...to obtain simultaneous forces, moments, flow visualization in dynamic maneuvers.
AEROARTS LLC
Copyright ® 2005 AeroArts LLC All rights reserved.

4. Synthetic Free Flight (SFF)
Scorpio closes the dynamics loop in SFF of dynamic maneuvers
Forces measured in tunnel
Flow visualization
Forces
PAX flight 12.9
A falling leaf-type maneuver idealized for study from an in-flight incident.
The falling leaf incident began with a roll reversal at a low angle of attack and developed into a roll and yaw oscillation with a sinking flight path.
This motion requires rotations in all axes and coordinated translations in all three axes.
phi ±60° sine
theta 0° to 45° ramp
psi ±30° sine
x ramp y
z ramp
Software
Equations of Motion
Initial Conditions
AEROARTS LLC
Copyright ® 2005 AeroArts LLC All rights reserved.

5. Copyright ® 2005 AeroArts LLC All rights reserved.
DEX Ejection (video)
AEROARTS LLC
Copyright ® 2005 AeroArts LLC All rights reserved.