CESSNA 1U149-002 Edo Aire Attitude Gyro C661056-0101

( Manufacturer Part Number: 1U149-002 ), ( Country Of Origin: United States )

Review CESSNA Edo aire Attitude Gyro

The **Cessna 1U149-002 EDO-AIRE Attitude Gyro (C661056-0101)** is a precision-engineered, self-contained attitude indicator designed for critical flight instrument applications in general aviation aircraft, offering pilots a reliable and accurate means of determining aircraft orientation relative to the horizon. This gyroscopic instrument operates on the principles of rigid gyroscope dynamics, providing essential pitch and bank information through a stable, spinning rotor housed within a sealed, hermetically sealed case filled with inert gas to ensure durability and resistance to environmental factors. The gyro s internal construction features a high-speed, precision-balanced rotor driven by an electric motor, which maintains its orientation in space through the gyroscopic precession effect, allowing the instrument to display pitch (up/down movement) and bank (roll) angles with remarkable consistency, even in turbulent conditions. The C661056-0101 model is specifically designed for integration into Cessna aircraft systems, adhering to strict aviation standards for accuracy, reliability, and longevity, making it a trusted component in flight decks where redundancy and precision are paramount. Its compact yet robust housing ensures minimal installation complexity, while the clear, high-contrast display typically featuring a horizon bar and bank scale provides pilots with immediate, intuitive feedback on the aircraft s attitude, aiding in stable flight control, instrument approaches, and recovery from unusual attitudes. Built to withstand the rigors of repeated takeoffs, landings, and prolonged use, this gyro is often paired with other attitude indicators or used as a backup system, ensuring operational safety in scenarios where primary instruments may fail. Whether installed in a Cessna 172, 182, or other models requiring a dependable attitude reference, the C661056-0101 exemplifies the blend of aeronautical engineering and practical functionality that defines essential flight instrumentation.

### **Pros and Cons of Buying a Cessna 172N (1U149-002) with EDO-Aire Attitude Gyro (C661056-0101)**

#### **Overview**

The Cessna 172N (model 1U149-002) is a well-established, high-wing, four-seat general aviation aircraft known for its reliability, ease of flight, and versatility. The inclusion of an **EDO-Aire Attitude Gyro (C661056-0101)** a gyroscopic instrument for artificial horizon and turn coordination adds a layer of redundancy and situational awareness, particularly useful in low-visibility or instrument flight conditions. Below is a detailed breakdown of its advantages and drawbacks.

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### **Pros**

1. **Proven Reliability and Durability**

The Cessna 172 has been in production since 1955, with the 172N variant (introduced in 1978) being one of the most common and well-supported models. Its simple design, robust airframe, and widespread parts availability make it a low-maintenance choice for pilots. The 1U149-002 is a later production model, benefiting from refinements in materials and manufacturing processes.

2. **Excellent Flight Characteristics**

The 172N is forgiving and stable, making it ideal for student pilots and recreational flyers. Its short takeoff/landing performance (STOL capabilities) and ability to operate from small grass strips or paved runways add flexibility. The aircraft handles well in various weather conditions, including light turbulence, due to its high-wing design and smooth airfoil.

3. **Fuel Efficiency and Range**

With a standard fuel capacity of 56 gallons (53 usable), the 172N offers a range of approximately **600 700 nautical miles** at cruising speeds of **105 120 knots**. This makes it suitable for cross-country flights without requiring frequent refueling. The Lycoming O-320-E2D engine (160 hp) is efficient and reliable, though not as powerful as newer models (e.g., the 172S with the IO-360).

4. **Low Operating Costs**

Compared to modern or high-performance aircraft, the 172N has relatively low fuel consumption ( 8 10 gallons per hour) and affordable maintenance costs. Parts are widely available, and labor rates for Cessna 172s are generally lower than for more specialized or newer aircraft. Insurance premiums are also reasonable for this class of plane.

5. **EDO-Aire Attitude Gyro Advantages**

- **Redundancy for the artificial horizon**: If the primary attitude indicator fails, the gyro can serve as a backup, improving safety in instrument meteorological conditions (IMC).

- **Turn coordination**: The gyro can assist with slip/skid detection and coordination, aiding in precise flight control.

- **Training tool**: Useful for pilots practicing instrument flight or improving spatial awareness.

- **Value-added feature**: Many standard 172Ns lack such redundancy, making this a desirable upgrade for pilots who fly in marginal weather or train extensively.

6. **Strong Resale Value**

The Cessna 172N holds its value well due to its popularity and enduring reputation. Buyers can typically recoup a significant portion of their investment when selling, especially if the aircraft is well-maintained. The EDO-Aire gyro may slightly enhance resale appeal for pilots prioritizing safety and redundancy.

7. **Community and Support**

The 172N has a vast owner and pilot community, with abundant resources for maintenance, modifications, and troubleshooting. Clubs, forums, and local flight schools often specialize in this model, ensuring easy access to expertise and parts.

8. **Versatility for Various Uses**

- Flight training (primary trainer).

- Air taxi or charter operations (with proper certification).

- Agricultural spraying (with modifications).

- Aerial photography or surveying (with additional equipment).

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### **Cons**

1. **Outdated Technology and Comfort**

The 172N lacks modern avionics and amenities found in newer models (e.g., glass cockpits, autopilot, or advanced weather radar). The cockpit is basic, with analog instruments and limited space for passengers or cargo. The seating is less comfortable for long flights compared to newer aircraft with ergonomic designs.

2. **Noise and Vibration**

The Lycoming O-320 engine is relatively noisy, and vibration levels can be higher than in modern engines. This may lead to fatigue during extended flights. Soundproofing is minimal, and passengers may find the cabin environment less pleasant than in newer models.

3. **Limited Performance**

The 172N s top speed of **120 knots** and ceiling of **13,500 feet** are adequate but not exceptional. It struggles in high-density altitude conditions (e.g., hot and high airports), requiring careful planning for takeoffs and landings. The aircraft is not designed for high-speed or high-altitude operations.

4. **Maintenance and Age-Related Concerns**

- **Inspect the airframe for corrosion**, particularly around the wings, fuselage, and control surfaces. The 1U149-002 may have seen more hours than newer models, so thorough inspection is critical.

- **Check the engine for TBO (Time Between Overhauls) compliance**. The Lycoming O-320 has a TBO of **2,000 hours**, and exceeding this without an overhaul can lead to reliability issues.

- **Verify the condition of the landing gear, flaps, and control systems**. Hydraulic or mechanical failures can be costly to repair.

- **Review the logbooks for proper maintenance records**, including inspections, oil changes, and any past modifications or repairs.

5. **EDO-Aire Gyro Limitations**

- **Not a primary instrument**: It is not a replacement for the standard artificial horizon but rather a backup. Pilots should not rely solely on it for instrument flight.

- **Maintenance requirements**: Gyros require periodic calibration and may drift over time, requiring attention to ensure accuracy.

- **Space constraints**: Installing or retrofitting the gyro may require modifications to the cockpit, potentially reducing legroom or visibility.

- **Cost**: The gyro itself is not extremely expensive, but installation or integration with existing systems may add to the purchase price.

6. **Fuel and Environmental Regulations**

The 172N uses **100LL aviation gasoline**, which is more expensive than automotive fuel and subject to supply chain fluctuations. Additionally, environmental regulations may impact older aircraft in some regions, though the 172N is generally exempt from stricter emissions standards affecting newer engines.

7. **Limited Modern Avionics Upgrades**

While aftermarket avionics (e.g., Garmin G1000) can be installed, the process is complex and costly. The 172N s airframe may not support all modern systems, and weight considerations can limit upgrades. Pilots who desire glass cockpits may find it more practical to consider newer models like the 172S or 172SP.

8. **Insurance and Liability Risks**

Older aircraft may have higher insurance premiums due to perceived risks associated with age and maintenance. Additionally, the 172N s lower performance limits its use in certain operations (e.g., high-altitude or high-speed flying), which could restrict its utility for some pilots.

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### **Conclusion**

The **Cessna 172N (1U149-002) with EDO-Aire Attitude Gyro (C661056-0101)** is an excellent choice for pilots seeking a **reliable, low-cost, and versatile general aviation aircraft**. Its strengths lie in its **proven reliability, ease of flight, fuel efficiency, and strong resale value**, making it ideal for flight training, recreational flying, and light personal use. The addition of the EDO-Aire gyro enhances safety by providing redundancy for critical instruments, which is particularly valuable for pilots who fly in marginal weather or train extensively.

However, the aircraft s **outdated technology, limited performance, and maintenance considerations** may be drawbacks for buyers seeking modern amenities or high-performance capabilities. The **172N is not a "set-and-forget" aircraft**; it requires diligent maintenance and pilot engagement to ensure safe and enjoyable operation.

For pilots who prioritize **affordability, simplicity, and a proven platform**, the 172N remains a compelling option. Those who desire **modern avionics, higher performance, or greater comfort** may find newer models (e.g., 172S, 172SP, or even the 182) more suitable.

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### **Recommendation**

**Buy the Cessna 172N (1U149-002) with EDO-Aire Gyro

Details:

Domestic Shipping: Typically orders are shipped through USPS Ground or Priority Mail buyer selected except if non typical circumstances arise, unusual package dimension's. I was told it working when removed, but have not personally verified that - hence being sold as for parts or.

part #: 1u149002 price

• $600.00

specifications engineaviatio:

• for makes: Cessna
• mpn: 1u149-002
• country of origin: United States

general engineaviatio:

• condition: For parts or not working
• Aviation Parts Accessories > Engines > Engine Components

returns engineaviatio:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

offer engineaviatio:

• options: Ship-to-home
• sold: 0
• best offers: True
• availability: In Stock
• quantity: 1
• started: April 14, 2026

seller engineaviatio:

• city: Santa Monica, California
• rating: 98.8%
• # reviews: 123

shipping engineaviatio:

• cost: $15.28
• service: USPS Ground Advantage
• carrier: USPS
• transit: 4-10 Days
• type: Calculated
• class: Standard

payments engineaviatio:

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

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