EZ -3 Altitude Hold System

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Part# 11-06552
MFR Model# EZ-3


The EZ-3 incorporates all of the features of the EZ-2 and adds the ability to pre-select a destination altitude. Once engaged, the system will initiate a climb/descent to the target altitude at a vertical speed that the pilot has previously specified. The vertical rates may be adjusted at any time during the climb/descent.
The internal altimeter is easily adjusted to compensate for changes in barometric pressure, using the primary aircraft altimeter as a reference.

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WARNING: Cancer and Reproductive Harm -


  • Altitude PreSelect - Set Target Altitude
  • Fully Adjustable Climb/Descent Rates - Pilots may also use PCS (Pilot Command Steering) to Transition to "Climb-Descent on Airspeed" at any time.
  • Smooth Intercept of Target Altitudes



Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Is there anything else that must be purchased with this system for it to work? I currently have the original single axis auto pilot installed over 30 years ago in my C-182RG and would like to upgrade. Also, how much installation time is required?

This is unit is for experimental aircraft only. It can not be installed in any certified aircraft.

Q: I have a Trio EZ pilot autopilot; will the EZ-3 work with it?

Yes and No, the EZ-3 is a stand alone pitch autopilot system and will not talk to any other autopilot system. You could use in conjunction with a roll autopilot system but would have to control each separately.

Q: Can this fit a Piper Cherokee p28 140?

This is unit is for experimental aircraft only. It can not be installed in any certified aircraft.

Q: I have ez-2 can I install the ez-3 with out any wiring change

Yes the wiring is the same.


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