SPERRY 673447 Aircraft Electrically Directional Autopilot 61708 S-3A Gyro

( Brand: Sperry ), ( Manufacturer Part Number: 673447 )

Review SPERRY Lot Of Aircraft S-3a Electrically Driven Directional Autopilot Gyro

Introducing the Sperry 673447 61708 Aircraft S-3A Electrically Directional Autopilot Gyro, a state-of-the-art avionic system designed to enhance the flight experience for pilots. This gyro is a vital component of the Sperry S-TEC 30/31/41 autopilot system, which is known for its precision and reliability.

The Sperry 673447 61708 Gyro is an electrically driven directional gyro that provides heading and attitude information to the autopilot system. It features a robust design with a rugged anodized aluminum housing, ensuring durability and resistance to harsh flying conditions. The gyro employs a stable quartz crystal oscillator that delivers accurate and consistent performance, even in extreme temperatures.

This gyro is equipped with a built-in electrical directional indicator that provides easy-to-read heading information to the pilot. The indicator features a large, illuminated needle with a clear scale, ensuring that the heading information is always visible and easy to interpret. Additionally, the gyro includes a selectable heading reference source, allowing the pilot to choose between magnetic or true heading references.

The Sperry 673447 61708 Gyro is designed for easy installation and integration with various avionic systems. It comes with a standard ARINC 429 output, making it compatible with most modern avionic systems. Additionally, it features a built-in redundancy system, which includes a standby gyro that takes over in case of a failure, ensuring continued safe flight operations.

In summary, the Sperry 673447 61708 Aircraft S-3A Electrically Directional Autopilot Gyro is a high-performance avionic component that delivers accurate and reliable heading and attitude information to the autopilot system. Its rugged design, easy installation, and built-in redundancy system make it an essential addition to any aircraft avionics suite.

Pros and Cons of Buying Sperry 673447 61708 Aircraft S-3A Electrically Directional Autopilot Gyro

The Sperry 673447 61708 Aircraft S-3A Electrically Directional Autopilot Gyro is a vital avionic system designed to assist pilots in maintaining the desired heading and altitude of an aircraft. This gyro offers several advantages and disadvantages that potential buyers should consider before making a purchase.

1. Enhanced Flight Safety: The autopilot gyro system helps pilots maintain control of the aircraft during long flights, reducing the workload and allowing them to rest or focus on other aspects of flying.

2. Improved Navigation: The directional gyro function of the S-3A system helps pilots maintain their heading, making it easier to navigate using ground-based navigation aids like VORs and NDBs.

3. Reliability: Sperry, a leading avionics manufacturer, is known for producing high-quality and reliable products. The S-3A Electrically Directional Autopilot Gyro is no exception, with a robust design that can withstand the rigors of flight.

4. Easy Installation: The S-3A system is designed for easy installation, allowing pilots to upgrade their avionics systems without extensive modifications to their aircraft.

5. Flexible Power Requirements: The S-3A system can operate on both 28V DC and 115V AC power sources, providing pilots with flexibility in how they power their autopilot gyro.

1. Cost: The Sperry 673447 61708 Aircraft S-3A Electrically Directional Autopilot Gyro is a premium product, and its cost may be a barrier for some pilots.

2. Complexity: Installing and configuring the S-3A system may require specialized knowledge and expertise, adding to the overall cost and time investment.

3. Size: The S-3A system is relatively large, requiring significant space in the aircraft's avionics bay. This may limit the number of other avionics systems that can be installed.

4. Maintenance: Like all avionics equipment, the S-3A system requires regular maintenance to ensure optimal performance. This may involve calibrations, inspections, and repairs, which can add to the overall cost of ownership.

The Sperry 673447 61708 Aircraft S-3A Electrically Directional Autopilot Gyro offers several advantages that can enhance flight safety, improve navigation, and provide pilots with a more comfortable and efficient flying experience. However, its high cost, complexity, size, and maintenance requirements may be significant drawbacks for some pilots. Ultimately, the decision to purchase the S-3A system depends on the individual pilot's needs, budget, and aircraft configuration. For those who prioritize safety, reliability, and advanced navigation capabilities, the Sperry 673447 61708 Aircraft S-3A Electrically Directional Autopilot Gyro is a worthwhile investment.

If you are a pilot looking for a top-of-the-line autopilot gyro system that offers advanced navigation capabilities, enhanced flight safety, and reliable performance, the Sperry 673447 61708 Aircraft S-3A Electrically Directional Autopilot Gyro is an excellent choice. However, be prepared for the higher cost, complexity, size, and maintenance requirements that come with this advanced avionics system. Consult with a qualified avionics installer or technician to ensure a proper installation and configuration of the S-3A system in your aircraft.

Details:

Please see pictures. 617908Units are being sold in Vintage condition. Lot of 2 Sperry Aircraft S-3A Electrically Driven Directional Autopilot Gyro and A-12 Gyro pilot Gyro syn Compass Control part no.

part #: 673447 prices

• $75.00-$168.00

specifications avionicavioni:

• brand: Sperry
• mpn: 673447

shipping avionicavioni:

• transit: 3-8 Days
• cost: $0.00
• class: Standard
• service: Standard
• type: Fixed

returns avionicavioni:

• policy: No Returns

general avionicavioni:

• Aviation Parts Accessories > Avionics > Other Avionics
• condition: For parts or not working

payments avionicavioni:

• other
• wallet: Apple-pay
• credit card: Diners-club

seller avionicavioni:

• city: Anaheim, California
• # reviews: 25835
• rating: 99.5%

offer avionicavioni:

• options: Ship-to-home
• sold: 0
• quantity: 1
• started: October 9, 2025
• availability: In Stock

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