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Black Magic Missile Works

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Tuesday, October 16, 2018

As development of the Computer Controlled Flow Control Valve for Hybrid Rocket Motors nears completion, focus is being placed on a practical flight system dubbed Black Magic IV, which is a 300 pound, 20’ long, 8” diameter P motor Hybrid expected to reach 35,000’. It embodies several unique design features:

As development of the Computer Controlled Flow Control Valve for Hybrid Rocket Motors nears completion, focus is being placed on a practical flight system dubbed Black Magic IV, which is a 300 pound, 20’ long, 8” diameter P motor Hybrid expected to reach 35,000’. It embodies several unique design features:

  • Computer Controlled, 3,000 pound thrust Hybrid Motor
  • Dual composition fuel grains; HTPB with Paraffin Over-Mold for initial high thrust
  • Light weight titanium oxidizer tank with embedded 1,500 Watt heater for pre-heating NOS for maximum pressure (>1,000 psi)
  • Dual-Redundant UFC-3C flight computer system with:
    • Primary/Secondary 533 MHz Base Modules with failover in less than 2 milliseconds
    • Primary/Secondary High Performance (4.5 Amp motor drive) Flight Management Systems with both Thales Aerospace NavChip and Analog Devices ADIS16488 Tactical Grade IMUs for active stabilization and motor control with programmable thrust curve (combustion chamber closed loop control)
    • High performance ruggedized NovAtel 20 fps GPS
    • 2.4 GHz wide band (dual 56Mbps Ethernet channels) long range telemetry with dual real-time High Definition Video Cameras
    • Triple Redundant 24 Volt Power Modules

Provision will be made to also support a two stage configuration using Black Magic III (10’, 6” diameter N APCP motor) as the sustainer with an altitude target of 45,000’.

hybrid P motorThrust Curve for 250psi Combustion Chamber Pressure

The Wide Band 2.4GHz LAN/WAN module and base station provides up to 1 Watt of transmitter power, with a line-of-sight range of 12 miles or more depending on the antenna gain. Supports Two 10/100 Ethernet RJ-45 connectors. DC output power can be 12V power on the separate connectors.

Ground station modems are supplied and various optional high gain antenna systems are available.

The Flow Control Valve for Computer Controlled Hybrid Motor operation provides the ability to throttle a hybrid motor like a liquid fuel motor with much less complexity and cost. It can be scaled up or drown form the original 8" diameter to as small as 4", although at that size only open loop (absolute position) control is possible due to the lack of space for a Combustion Chamber Pressure Sensor. When combined in a system with a FMS/HPF Flight Management System the user can easily build a proven high performance motor.

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