Overview
The FMS 1100MM PC-21 Air Speed Head is a specialist RC aircraft component designed for serious hobbyists and experienced pilots looking to enhance their fixed-wing RC plane performance. This precision-engineered air speed head measures 1100mm and is built to exacting standards by FMS, a recognised leader in foam RC aircraft manufacturing. Whether you're upgrading an existing airframe or building a custom setup, this component delivers the reliability and accuracy demanded by competitive RC flyers across the UK and beyond.
As a dedicated air speed measurement head, this component integrates with compatible RC aircraft systems to provide accurate airspeed data, essential for flight stability, performance tuning and advanced aeronautical applications. The 1100mm dimension makes this suitable for medium to large-scale RC planes, offering compatibility with a wide range of FMS airframes and similar PNP or custom-built aircraft. This is genuinely specialist equipment for those serious about RC aviation performance.
Key Features
- Dedicated Air Speed Head Design — This specialised component is engineered specifically to measure and transmit accurate airspeed data to your RC aircraft's flight control system, allowing you to monitor critical performance metrics in real time and make informed adjustments to your flying technique and setup configuration.
- 1100MM Dimension — The 1100mm measurement indicates this air speed head is sized for medium to large-scale RC fixed-wing aircraft, providing compatibility with a broad range of professional-grade foam airframes and ensuring proper integration with FMS aircraft models and similar platform designs.
- FMS Quality Manufacturing — Built by FMS, a trusted manufacturer recognised throughout the RC hobby community for precision foam aircraft construction, this component meets the same exacting standards applied to their complete airframe systems, ensuring durability and reliable performance under operational conditions.
- Enhanced Flight Data Capability — When integrated with compatible transmitters and receivers supporting telemetry feedback, this air speed head enables bidirectional communication systems that can send and receive performance data, including airspeed, temperature, altitude and other critical sensor readings, allowing sophisticated in-flight monitoring and post-flight analysis.
- Professional RC Aviation Applications — This component opens up advanced flying possibilities including precision aerobatic flight, thermal soaring optimisation, and data-driven performance tuning that separates serious RC aviation enthusiasts from casual flyers.
Technical Performance
The FMS 1100MM PC-21 Air Speed Head represents specialist precision engineering designed for advanced RC aircraft applications. As a dedicated measurement component, it integrates with modern 2.4GHz radio control systems and compatible receivers that support the AFHDS 2A protocol and telemetry feedback. The component is engineered to work seamlessly within FMS aircraft ecosystems and can be integrated with PNP (plug-and-play) aircraft platforms that feature compatible sensor ports and data transmission capabilities. The 1100mm dimension positions this within the medium to large-scale RC aircraft category, suitable for airframes requiring serious performance monitoring. When paired with modern radio systems offering multi-channel communication across 135 channels with hopping frequency technology, this air speed head provides real-time aerodynamic data transmission with the low power consumption and high reliability that characterise contemporary digital RC control systems. The component is built using quality materials consistent with FMS manufacturing standards, ensuring longevity in outdoor flying environments and reliability across extended operational seasons.
What's in the Box
- FMS 1100MM PC-21 Air Speed Head (FS-PP106)
What You Need to Complete
- Compatible FMS RC aircraft airframe or similar foam airframe with sensor port capability
- 2.4GHz radio transmitter and receiver system with telemetry support (such as FMS FS-i4X transmitter and FS-iA6 receiver, or compatible FlySky systems supporting AFHDS 2A protocol)
- Flight battery appropriate to your aircraft size and type
- Electronic speed controller (ESC) suitable for your selected motor
- Brushless or brushed motor matched to your airframe specifications
- Servos for control surfaces
- RC glue or foam-safe adhesive for component mounting
Frequently Asked Questions
- What is an air speed head and why would I need one in my RC aircraft? — An air speed head is a sensor component that measures the actual airspeed of your RC aircraft as it flies through the air. This data is transmitted back to your transmitter via telemetry, allowing you to monitor aerodynamic performance in real time. Advanced flyers use this information to optimise flight characteristics, diagnose control issues, and improve overall aircraft handling. It's particularly valuable for aerobatic flying, thermal soaring, and understanding how your aircraft behaves under different flight conditions.
- Is this air speed head compatible with my radio system? — The FMS 1100MM PC-21 Air Speed Head is designed to integrate with radio systems supporting telemetry feedback and sensor data transmission. The standard FMS RTF transmitter and receiver pairing is the FS-i4X transmitter with FS-iA6 receiver, which support bidirectional communication and telemetry capabilities. Compatible systems utilising the AFHDS 2A protocol and supporting multi-channel hopping frequency technology across 2.408GHz to 2.475GHz will work with this component. Ensure your chosen radio system supports telemetry data reception before purchasing.
- Can I use this air speed head on different aircraft types? — Yes, this air speed head can be integrated with various PNP (plug-and-play) aircraft platforms and custom-built foam airframes that feature compatible sensor ports and data transmission capabilities. FMS manufactures the Ranger, and other models that support sensor integration. Similar foam aircraft from other manufacturers with equivalent sensor interfaces can also accommodate this component. However, you must ensure your chosen airframe has the physical mounting provision and electrical connectivity required for sensor integration.
- What radio system should I buy to use this air speed head? — For optimal compatibility with FMS aircraft and sensor components, FMS recommends their FS-i4X 6-channel transmitter paired with the FS-iA6 receiver. Alternatively, FlySky systems such as the FS-i6X with IA6B receiver offer AFHDS 2A protocol support and telemetry capability at competitive pricing. These systems feature multi-channel hopping frequency technology, unique ID recognition ensuring secure pairing, and low power consumption that extends flight battery life. Whichever system you choose, verify telemetry data transmission compatibility before purchasing.
- Is this suitable for beginners? — The FMS 1100MM PC-21 Air Speed Head is specialist equipment designed for experienced RC aircraft pilots with intermediate to advanced flying skills. Installing and configuring sensor components requires understanding of RC aircraft systems, telemetry setup, and flight control integration. Beginners should first master basic RC aircraft flight with standard control setups before progressing to sensor-equipped aircraft. This component is better suited to pilots ready to advance their skills and equipment capabilities.
- What battery does this need? — The air speed head itself draws minimal power and does not require a dedicated battery. However, your complete RC aircraft system will require a flight battery suitable to your airframe size and motor type. Modern RC aircraft typically use lithium polymer (LiPo) batteries in 2S, 3S or higher configurations depending on motor specifications and aircraft size. Your transmitter system (such as the FS-i4X) operates on six 1.5V AA batteries providing 6V DC power. Consult your airframe and motor specifications to determine appropriate battery capacity and voltage for your specific setup.
Why Buy from RC Model Shop?
RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the FMS 1100MM PC-21 Air Speed Head FS-PP106 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.
- Model: FMS 1100MM PC-21 Air Speed Head
- Model Number: FS-PP106
- Dimension: 1100mm
- Component Type: Air speed measurement head
- Manufacturer: FMS (FlySky Hobby)
- Compatible Radio System: FMS FS-i4X transmitter with FS-iA6 receiver, or equivalent telemetry-capable systems
- Radio Frequency: 2.408-2.475GHz
- Radio Protocol: AFHDS 2A (Automatic Frequency Hopping Digital System Second Generation)
- Radio Channels: 135 total channels with 16-channel hopping (32 for Japanese and Korean versions)
- Radio Bandwidth: 500KHz
- Modulation Type: GFSK
- RF Power: Less than 20dBm
- Data Transmission: Bidirectional communication capable of sending and receiving airspeed, temperature, altitude and sensor data
- Compatible Aircraft Type: Medium to large-scale fixed-wing RC aircraft, FMS airframes and similar PNP platforms
- Integration: Requires aircraft with compatible sensor port and telemetry-capable radio receiver
- Power Consumption: Low power consumption design consistent with AFHDS 2A system efficiency
- Telemetry Features: i-BUS Support, servo calibration capability, multi-sensor data transmission
- Frequency Hopping: Multi-channel hopping reduces interference from other transmitters
- ID Recognition: Unique ID system ensures paired transmitter and receiver communicate exclusively, preventing accidental interference
- Antenna: Omni-directional high-gain antenna design reduces interference whilst using minimal power
We want to make sure your delivery goes smoothly, so here are some important details about our service:
- For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
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