Superior stiffness & stability of deployed
   payload elements

Low risk, flight heritage mechanical system

Excellent thermal & mechanical stability:
   10 nanomter stability performance for
   frequency responses > 50Hz
   (IPEX II flight validation)

Very high deployment reliability (repeatability)

Retraction capability

Validated high strength & stiffness
   performance produced & flown:
   • Lengths up to 60m (197 ft)
   • Stiffness > 5E9 lb-in2
   • Strength > 72,000 in-lb
      bending load capacity

Enables precision payload deployed
   operation without active controls

Tailorable deployed properties to match
   mission needs

Compact, highly efficient stowage volume
   < 5% of deployed length

Very repeatable precise deployment position

Substantial cabling & utility accommodation

Length

< +/- 1.3 mm (from +66 C to -60C)

Tip Translation
to Shear

< +/- 0.25 mm

Tip Twist
to Torsion

< +/- 0.02"

Tip Rotation
in Bending

<<+/- 0.005"

Program

Customer

Technology

Application

IPEX II

JPL

ADAM

Micron-level Stability Flight Experiment

SRTM

JPL

ADAM

SAR Antenna Deployment

WSOA

JPL

ADAM & ESS

Deployable SAR, Fixed-Baseline Interferometer

AstroPhysics Programs

Various

ADAM

Occulter Deployment, Intrument & Detector Separation

Mode

Predicted Freq. (Hz)

Measured Freq. (Hz)

1st Yaw-Bending

0.095

0.094

1st Roll-Bending

0.144

0.135

Flight calibration from Shuttle Radar Topography Mission (Feb. 2000)