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Hydraulic Servo-Actuator

Hydraulic Servo-Actuator

The 101730 Hydraulic Servo-Actuator continues JASC’s legacy of Thrust Vector Control Actuators for the space industry. This actuator incorporates a fully passive hydraulic locking device that secures the actuator in any position when supply pressure is removed—thus locking the engine in place during captive carry. It delivers 15,800 lbs. of static force at 1500 psid and exhibits excellent frequency response (10.1 Hz @ -3 dB). Each section is fully modular, so the locking mechanism can easily be removed if not required.

This unit features JASC’s patented FlexJet® Electro-Hydraulic Servo Valve, which provides a more robust alternative to more traditional jetpipe designs. This servo is designed for high contamination tolerance and long life—even in the most severe shock and vibration environments generated by these engines.

The TVCA incorporates full-open indication of the hydraulic lock and analog reporting of actuator position via an internally-mounted, temperature-compensated LVDT. Multiple layers of integral filtration guarantee sustained mission performance, making it suitable for use in fueldraulic systems as well. The entire assembly weighs less than 20 lbs.

JASC Actuators

(Scroll table horizontally for full details.)

Part No.Working FluidsMEOP (psig)Stroke (in)Static Force (lb) (RET/EXT)Retracted Length (in)Unloaded Frequency Response (Hz)Approximate Dimensions (in)Dry Weight (lb)Notes:
101405-1MIL-PRF-83282, MIL-H-560630002.3511000/1350012.955.1 @ -3 dB18H X 4.5W X 14.1 NOM L12.8Includes feedback device (LVDT)
101413-1MIL-PRF-83282, MIL-H-560630006.6027500/3250018.704.4 @ -3 dB10.7H X 6.3W X 22.0 NOM L29.2Includes feedback device (LVDT)
101424-2MIL-PRF-7024, MIL-H-5606, RP115002.865000/710013.68*6.0 @ -3 dB7.6H X 4.4W X 15.1 NOM L13.5Includes feedback device (LVDT)
101424-4MIL-PRF-7024, MIL-H-5606, RP120002.866660/946013.68*9.0 @ -3 dB7.6H X 4.4W X 15.1 NOM L13.5Includes feedback device (LVDT)
101552-1**MIL-PRF-83282, MIL-H-560615001.70515/5509.202.5 @ -3 dB3.3H X 2.2W X 10.1 NOM L1.7Includes feedback device (Linear Pot.)
101622-2MIL-PRF-83282, MIL-H-5606, MIL-PRF-702430006.1010750/1325016.728.0 @ -3 dB7.4H X 4.4W X 17.8 NOM L14.1Includes feedback device (LVDT)
101730-1MIL-PRF-7024, MIL-H-5606, RP118003.7115000/1580013.37*10.1 @ -3dB11.5H X 6.0W X 16.9 NOM L19.8Incorporates passive hydraulic lock device & LVDT
101850-XMIL-PRF-83282, MIL-H-5606, MIL-PRF-702430006.110750/1325016.728.0 @ -3 dB7.8H X 4.4W X 17.8 NOM L14.3Includes feedback device (LVDT)

* No rod end
** Matched Electronic Control Unit available

Space Products

  • Cavitating Pintle Valve
  • Flight System Control Actuator
  • Hydraulic Servo-Actuator
  • Thrust Vector Control Actuator
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2303 West Alameda Drive
Tempe, AZ 85282 USA

P: +1 602.438.4400

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sales@jasc-controls.com

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engineering@jasc-controls.com

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