Quattro Node

The Quattro Node samples airspeed and barometric altitude and communicates this information to the autopilot over CAN bus. This removes hazards associated with pinched hoses and leaky connections in typical pneumatic systems. CAN communication also allows for the operation of multiple nodes for redundant airspeed and altitude sampling.

Pitot tube attaches to the Quattro Node’s barbed manifold with short pneumatic tubes.
The Quattro Node includes a redundant magnetometer
Four additional PWM channels enable actuation of nearby control surfaces.
In addition to PWM, the Quattro Node supports Voltz actuators over CAN bus.
A removable heated pitot tube variant of the Quattro Node is under development.

The Applied Navigation Pitot tube is lightweight, rugged, and designed for UAS applications. This product has been designed using wind tunnel data to maximize angle of attack and sideslip range to provide the best airspeed and altitude for flight control. Carbon tubing and anodized 6061 Aluminum provide excellent rigidity and corrosion resistance in a lightweight package. The design allows the hose barbs to be installed on either side for easy integration into your airframe. Mass is 19g for the standard length of 250mm. Custom lengths and volume pricing are available upon request.

Example installation consisting of redundant Quattro Nodes driving control surfaces in proximity with PWM. Airspeed, altitude, and control data are passed between the nodes and autopilot via CAN bus.

Specifications

Node Dimensions	L: 45.0mm W: 54.0mm H: 15.5mm
Node Weight	35.2g
Tube Dimensions	L: 205mm D: 8.74mm
Tube Weight	20g
Power Consumption	340mW
Voltage Range	6-30VDC
Primary Connector	Nicomatic 221R14F26
Cable Connector¹	Nicomatic 222S14M16C

1. The Nicomatic 222S14M16C is polarity keyed and features captured fasteners for reliable connection.

Interfaces

RS-232 or RS-485
CAN
PWM x4
Air Temperature (Analog)

Applications

Remote Air Data Sensing
Quattro FMS I/O expansion
Air Temperature Sensing