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Altimeter RRC3 - Missile Works

Barometric altimeter and flight recorder with double ejection capability for high performance rocket models. Totally programmable and equipped with a third channel for different uses.

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The Rocket Recovery Controller 3 (RRC3) is a barometric dual-deploy altimeter, with the features of high-end units, at the cost of those with a more modest feature set. In addition to basic dual-deploy capability, the RRC3 is a multi-flight recording unit, allowing you to fly all day, without the need to stop and download data in between flights. The RRC3 also provides a third, highly flexible and programmable 'Auxiliary' output which can provide staging, airstarts, backup events, and a host of other applications. The RRC3 can also support real-time data streaming capabilities in flight for telemetry or for interface with other custom control systems. Despite this unrivaled suite of intrinsic capabilities and expandability, the RRC3 still maintains its simple "buy it and fly it" operations.


Architectural Features

16MHz 16-bit MSP430 Series mCU

8Mbit SST Flash Memory

MSI MS5607 Pressure sensor

Note: This high resolution altimeter sensor has a 24 bit ΔΣ ADC, with internal factory calibrated coefficients which provide a precise digital 24 bit pressure and temperature. The RRC3 design also provides a dedicated "baro-only" regulated power system and applies other noise reduction techniques to further accurize pressure data.

Operational Ranges

Sport Unit: 40K MSL
 Xtreme Unit (available on request): 100K MSL

Note: For high reliabilty purposes, the 'Xtreme" Altimeter replaces the standard RRC3 electrolytic brownout capacitor with a solid-dielectric type for operations in virtual vacuum and near space conditions. Electrolytic capacitors have (semi-)liquid dielectrics, which can boil off in vacuum.

Power Requirements

3.5 VDC to 10.0 VDC / Optimized for 9V battery power
 6ma @ 9V quiesecent / 35ma @ 9V during piezo and LED operation

Physical Properties

Length: 99.5mm (3.92")
Width: 23.5mm (0.925")
Weight: ~17 grams

Output Events

Drogue / Main / Auxiliary 5A @ 9V current sinking

Flight Data Recording

15 flights with ~28 minutes of data per flight Each flight logs 20Hz altitude/velocity and 1Hz temperature/battery voltage

Flight Data Telemetry

0.5Hz or 1Hz 9600 bps configurable serial stream Timestamp, Altitude, Velocity, Temperature, Events

HMI Feedback

Programmable frequency and extra loud 85dB magnetic buzzer
 High efficiency red LED status indicator

Expansion Peripherals and Accessories

USB-IO PC interface dongle to capture recorded flight data
 Plug in LCD Terminal for quick field configuration and data retrieval
 mDACS PC application for advanced flight analysis, configuration, and testing

In development (not available now)

Smart Pyro Board with extended timing and power capability GPS / Telemetry package Bluetooth communication module

Data sheet

Device type