ROBINSON HELICOPTER D799-4 Switch MS25201-4

( Brand: Robinson Helicopter ), ( Manufacturer Part Number: D799-4 ), ( Part Type: Switch ), ( Country Of Origin: United States )

Review ROBINSON HELICOPTER Switch Pn

The Robinson Helicopter Model R44 Raven II is a popular and versatile helicopter known for its reliability and agility. One essential component of this helicopter is the MS25201-4 switch, which is a part of the aircraft's electrical system. This switch, manufactured by Honeywell, plays a vital role in the functioning of various systems in the helicopter.

The MS25201-4 is a 4-position, 4-way, DPDT (Double Pole, Double Throw) toggle switch. It is designed to provide reliable and secure switching functions for the helicopter's electrical systems. Each position on the switch corresponds to a specific electrical circuit or system. For instance, position 1 might control the landing lights, position 2 could be used for the avionics, position 3 for the emergency fuel pump, and position 4 for the engine heater.

The switch is built to meet the stringent requirements of the aerospace industry. It is constructed from high-quality materials, including a rugged, corrosion-resistant housing and tactile, durable toggle levers. The switch is rated for a maximum current of 15 amperes at 28 volts DC and is capable of handling up to 30 watts of power.

The MS25201-4 is designed for easy installation and integration into the helicopter's electrical system. It features secure terminals that lock in place during installation, ensuring a reliable electrical connection. The switch is also equipped with a spring-loaded center detent mechanism, which provides a positive click when the switch is moved from one position to another, ensuring that the correct switch position is maintained.

The MS25201-4 switch is a critical component of the Robinson R44 Raven II helicopter's electrical system. It provides the pilot with easy access to essential electrical systems and allows for quick configuration changes to meet various flight conditions. With its robust construction, reliable switching functions, and ease of installation, the MS25201-4 switch is an essential upgrade for any Robinson R44 Raven II helicopter.

The Robinson R44 Raven II helicopter is a popular model known for its versatility and efficiency. The MS25201-4 Switch is an optional avionics package for this helicopter. In this discussion, we will outline the pros and cons of purchasing this avionics suite for your Robinson R44 Raven II.

1. Enhanced Situational Awareness: The MS25201-4 Switch provides pilots with advanced features like a synthetic vision system, terrain awareness warning system (TAWS), and a moving map display. These features significantly enhance situational awareness during flight.

2. Improved Navigation: The avionics package includes a Global Positioning System (GPS) with a database of airports and waypoints, making it easier for pilots to navigate to their desired destinations.

3. Increased Safety: The TAWS feature alerts pilots when they are approaching terrain, providing an essential safety feature, especially during instrument flight conditions.

4. Enhanced Communication: The MS25201-4 Switch comes with a VHF radio, allowing pilots to communicate more effectively with Air Traffic Control (ATC) and other aircraft.

1. Higher Cost: The MS25201-4 Switch is an optional avionics package, and its cost can add significantly to the overall price of the helicopter.

2. Complexity: The advanced features of the MS25201-4 Switch may require additional training for pilots to fully utilize.

3. Maintenance: As with any advanced avionics system, the MS25201-4 Switch will require regular maintenance and calibration to ensure optimal performance.

In conclusion, the decision to purchase the MS25201-4 Switch for a Robinson R44 Raven II helicopter depends on the specific needs and budget of the operator. For those who frequently fly in instrument conditions, navigate complex terrain, or require enhanced communication capabilities, the MS25201-4 Switch can be a valuable investment. However, for those who prioritize cost savings and a simpler avionics setup, the additional cost and complexity of this system may not be worth the investment.

For pilots who frequently fly in challenging conditions or require advanced navigation and communication capabilities, the MS25201-4 Switch is a recommended investment for their Robinson R44 Raven II helicopter. However, for those who prioritize cost savings and a simpler avionics setup, alternative options may be more suitable. It's always recommended to consult with a certified avionics installer or helicopter expert to discuss the specific requirements and potential benefits for your unique situation.

Details:

Condition: This item is new old stock. Manufacturer: Robinson Helicopter,: Switch, Part Number: D799-4, MS25201-4, Applicable model's: Unknown model. Retain all shipping cartons/packaging. SHIPPING: USA Buyers: Most items are shipped UPS Ground, unless stated otherwise.

part #: d7994 prices

• $54.95-$67.20

specifications aviationpar:

• brand: Robinson Helicopter
• mpn: D799-4
• part type: Switch
• country of origin: United States

returns aviationpar:

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

general aviationpar:

• Parts Accessories > Aviation Parts Accessories > Parts
• condition: New other see details

payments aviationpar:

• wallet: Apple-pay
• other
• credit card: Mastercard

offer aviationpar:

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

seller aviationpar:

• # reviews: 6456
• city: Leesburg, Florida
• rating: 99.7%

shipping aviationpar:

• carrier: UPS
• class: Standard, One-day, Expedited
• cost: $20.12
• type: Calculated
• service: UPS Ground, UPS Next Day Air, UPS 2nd Day Air
• transit: 3-6 Days

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