Part# 10-01025
MFR Model# 1394T100-3B
Model NumberDescriptionPart Number
1394T100-3B11–32V, Lighted bezel, 14V, Brushless - Low Wing10-01025


Engineered for a long service life, the “B” model turn coordinator features a proven AC rotor powered by a solid-state inverter, creating less heat behind the panel. Utilizing a brushless rotor design, this instrument has top industry ratings of 4,800 hours MTBF. It is ideal for use in high performance aircraft and cold-climate applications.

All 3-inch turn coordinators operate from 10–32 volts DC for convenience and reliability.
California Prop 65 Warning Symbol

WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. www.P65Warnings.ca.gov


  • Input Voltage Range VDC: 11 – 32
  • Rotor Type: AC
  • Power Consumption Nominal: 0.28 A
  • Dimensions: 3 1/4" x 3 1/4" x 5"
  • Maximum Weight: 1.4 lbs.
  • Turn Indication: Standard 2–Minute Turn
  • Operating Temperature: –30°C to + 50°C
  • Operating Altitude: –1,000 ft. to 35,000 ft.
  • Glass: HEA non-glare
  • Mounting: 3 1/8" front or rear panel
  • FAA TSO certified to C3b


Unfortunately I’ve to send it back. During run-up the red flag came out…let’s say few minutes of use! Pity the Rc.Allen I had formed just fine for 22 years! Boring I’ve to dismantle and send it back! AT

Andrea L Verified Purchase


March 23, 2022

Worked well. For the little price difference from other brands that are not TSO. This unit is built well and accurate.

Jared C
December 17, 2020

Very nice gauge.

Air T
August 19, 2019

work fine, just a little long to unflag, its a rotation speed sensor, not the cc alimentation

Ad A
January 5, 2019

I won this unit at Aircraft Spruce's Customer Appreciation Day 2013, just in time, my old unit was doing 90 second turns. The unit I won was unlighted and I needed a lighted unit. I emailed MidContinent's Sales & Customer Service Manager Bryan Sitner who exchanged the unit at no cost. Too soon to rate the instrument so I'm giving 5 stars to their Customer Service!

Frank H
October 16, 2013

In stock, was able to pick it up the day I ordered it. Hope it lasts longer than the unit it replaced.

Michael J
April 26, 2021

The turn coordinator works just fine. I am a little peeved that I ordered what I thought was one with a high wing aircraft example on the display and got one with a low wing, a minor detail to be sure but for the price of this instrument you’d think the example of what you see online would be what you get. I called To inquire about swapping, was transferred to a voicemail and then never heard back after leaving a message. So a little disappointed..

August 11, 2019


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: I just purchased this model turn coordinator... what is the part number for the required cannon plug?

Part # 10-00789 and the backshell for that is part # 11-04969?

Q: Do these Mid Continent turn coordinators, specifically 1394T100-7B, include the EASA or 8130 form?

No, there are no forms included in the box. They can be furnished with 8130-3 forms, but it must be added at time of order. Additional charges will apply.

Q: Are these Mid Continent turn coordinators New Outright?

Yes, these turn coordinators are new, outright.

Q: Is this instrument (1394T100) approved for certified planes? By what method?

Yes, this is approved via FAA TSO.

Q: Do we have to buy cables separately to plug it?

Per the manufacturer, this is only the turn coordinator. The cables are sold separately.

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