Mid-Continent & Avionics 1394T101-7B - Turn Coordinator
Need a Quote?
The Mid-Continent Instruments and Avionics 1394T101-7B is a panel-mounted turn coordinator built for reliable performance in both normal and instrument flight conditions. As the current production replacement for the widely used 1394T100-7B, this brushless, solid-state-driven instrument delivers the dependability that avionics technicians and aircraft owners demand — with an industry-leading 4,500-hour MTBF rating and FAA TSO C3e certification.
Key Features
- Brushless AC rotor powered by an internal solid-state inverter — generates less heat behind the panel and eliminates brush wear for extended service life
- 4,500 hours MTBF — among the highest ratings in standard 3-1/8-inch turn coordinators on the market
- Standard 2-minute turn indication — rotating aircraft symbol displays combined rate of turn and rate of roll for reliable partial panel instrument flight
- Built-in inclinometer with white background and contrasting black ball clearly indicates slip or skid for coordinated flight reference
- Improved "OFF" warning flag retracts fully out of view when the rotor is at operating speed — no moving parts produce audible noise during operation
- Wide 11–32 VDC input range — compatible with both 14V and 28V aircraft electrical systems without modification
- 3-pin MS connector with non-lighted bezel for streamlined installation
- Supports front or rear panel mounting in a standard 3-1/8-inch instrument cutout
- Designed and manufactured in Wichita, Kansas, USA
- One-year limited warranty
Specifications
- MTBF: 4,500 Hours
- Turn Indication: Standard 2-Minute Turn
- Input Voltage: 11–32 VDC
- Power Consumption: 0.80A max starting / 0.35A running
- Operating Temperature: -45°C to +70°C
- Operating Altitude: -1,000 ft. to 25,000 ft.
- Connector: 3-Pin MS
- Bezel: Non-Lighted
- Glass: Clear
- Inclinometer: White Background, Black Ball
- Panel Cutout: 3-1/8 in (Standard)
- Mounting: Front or Rear Panel
- Weight: 0.9 lbs
- Dimensions: 3.25 x 3.25 x 5 in
- Certification: FAA TSO C3e; RTCA DO-160G Qualified
- Origin: Wichita, Kansas, USA
Applications & Use Cases
The 1394T101-7B is ideally suited for general aviation aircraft panels, high-performance aircraft, and cold-climate operations where reliable gyroscopic instrumentation is critical. It is a direct drop-in replacement for the 1394T100-7B and is approved for installation per 14 CFR Part 43, making it a go-to choice for MRO facilities, avionics shops, and FBOs maintaining certified aircraft. Its wide voltage range and brushless design also make it well-suited for aircraft operating in demanding environments where traditional brush-type instruments may degrade prematurely.
| General Information | |
|---|---|
| Part # | 1394T101-7B |
| Manufacturer | Mid-Continent Instrument & Avionics |
| Specifications | |
|---|---|
| Bezel | Non-Lighted |
| Certification | FAA TSO C3e, RTCA DO-160G Qualified |
| Connector | 3-Pin |
| Dimensions | 3.25 x 3.25 x 5 in |
| Glass | Clear |
| Inclinometer | White Background, Black Ball |
| Input Voltage | 11–32 VDC |
| Mounting | Front or Rear Panel |
| MTBF | 4,500 Hours |
| Operating Altitude | -1,000 ft. to 25,000 ft. |
| Operating Temperature | -45°C to +70°C |
| Panel Cutout Size | 3-1/8 in (Standard) |
| Power Consumption | 0.80A max starting, 0.35A running |
| Turn Indication | Standard 2-Minute Turn |
| Weight | 0.9 lbs |
AIRCRAFT COMPATIBILITY
| Compatible Aircraft* |
|---|
PRODUCT REVIEWS
This item does not have any reviews yet.
QUESTIONS & ANSWERS
The Mid-Continent 1394T101-7B is the current production replacement for the 1394T100-7B turn coordinator and is a direct drop-in for most standard 3-pin turn coordinators. It is fully compatible with the same panel cutout and wiring.
The 1394T101-7B operates across an 11–32 VDC input range, making it compatible with both 14-volt and 28-volt aircraft electrical systems without any additional wiring or modification.
Yes. The Mid-Continent 1394T101-7B is FAA TSO certified to C3e and qualified to RTCA DO-160G environmental standards. Installation must be performed per 14 CFR Part 43 by an authorized A&P mechanic or avionics technician.
No — the 1394T101-7B features a non-lighted bezel. For applications requiring panel lighting, refer to the 1394T101-3B (lighted bezel) variant.
The "B" suffix designates the brushless rotor design, which uses a solid-state inverter to power an AC rotor. This eliminates brush wear, reduces heat generation behind the panel, and contributes to the instrument's 4,500-hour MTBF rating.
