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Welcome to Gama Aviation

July 18 2024

Mission System Design & Modification. Extending your capability.

Our Mission System design capability provides a one-stop solution for industry leading aerospace design, manufacture & installation of modifications and repairs. For over 14 years we have fulfilled our client’s specific requirements and applied a flexible, efficient and innovative approach using our substantial range of in-house skills, expertise & experience. The team is comprised of a Part 21 aviation design & production / DAOS approved organisation that undertakes a broad range of aircraft design and production services to supply avionic, structural design and certification to a wide variety of commercial, contract prime and military clients across the world.


Your mission, our passion

Our Special Mission clients typically operate in the following areas, requiring solutions that offer improvements in their mission performance. Our OEM agnostic approach allows us the breadth and depth to select the most appropriate ‘tools’ for the client’s CONOPS, creating a Mission System architecture that is built around an effect not convenience.


Air Ambulance Modifications include:

  • Night Vision Imaging Systems (NVIS)
  • Role fits & Infection Cabin Partitions
  • Patient Loading Systems
Find out more
Military Modifications

Military Modifications include:

  • Customer Specific Systems
  • Electro-Optical & Infrared Sensors
  • Infrared Counter Measures (IRCM)
Find out more

Police Modifications include:

  • Electro-Optical & Infrared Sensors (EO/IR)
  • Specialist Antennas and Pods
  • Surveillance Role Fits
  • Video Management Systems (VMS)
Find out more
EC135 CARS / AIRS modification

An array of clients spanning the Special Mission world

Clients past and present include aviation design & production projects for amongst others: the Ministry of Defence, a range of prime contractors including Babcock, Thales, QinetiQ, the British Army Air Corps and NHS Scotland.

Civil and Military approvals

Our approvals cover the design,testing, production and installation on civil and military types. As an organisation we hold the following approvals:

  • BSI Cert of Registration to ISO 9001:2015 Nº620796
  • UK CAA Part 21J Approval Nº UK.21J.0174
  • UK CAA Part 21G Approval Nº UK.21G.2678
  • UK CAA Design BCAR A8:21 Approval Nº DAI/9961/15
  • UK CAA Production BCAR A8:21 Approval Nº DAI/9961/15
  • Military Aviation Authority MAA Nº UK.MAA.DAOS.0322
  • UK.MAA.DAOS approval Nº322


We work frequently with the following national and international authorities:

Air Ambulance Mission Systems

EC135 / CS-27 rotorcraft CARS & AIRS modification available

The EC135 modification installs a crash protected Cockpit Audio Recording System (CARS) and Airborne Image Recording System (AIRS) to the Airbus Helicopters EC135. The system records cockpit audio in accordance with EUROCAE ED-155 Part I and imagery in accordance with ‘Class C’ of EUROCAE ED-155 Part III.

This system can be installed on any CS-27 rotorcraft subject to survey & contract.

EC135 CARS / AIRS modification

Mission System Design & modification services

Mission systems: Mechanical design capability

Modifications and repairs typically require mechanical design. The team are experienced in all aspects from technical survey, initial hand calculations, through detail design development to creation of production drawings and computer aided manufacturing data.

Mechanical design

Examples of projects and additional services covered by our Mechanical Team include:

  • 3D Scanning
  • Adapter Plates
  • Antenna Installations
  • Anti-Vibration Mounts
  • Blanking Plates
  • Bulkhead Penetrations
  • Chart Holders
  • Circuit Breaker Panels
  • Detail, Assembly & Installation Drawings
  • Doublers (Internal & External)
  • Empennage Changes & Repairs
  • Equipment Mounts
  • Equipment Racks & Trays

  • Fairings
  • Flooring
  • Fuselage Changes & Repairs
  • Ground Support Equipment
  • Hard Points
  • Instrument Panels
  • Mission System Consoles
  • Mock-Ups
  • Monuments & Stowages
  • Rapid Prototyping (3D Printing)
  • Structural Repairs
  • Tie Rods
  • Wing Changes & Repairs


Mission systems: Electrical design capability

Modifications and repairs with electrical aspects will involve numerous assessments, such as power distribution, electrical load analysis and electromagnetic compatibility.

Electrical systems

Typical projects undertaken by our Electrical Team include:

  • Annunciator Panels
  • Annunciators
  • ARINC Signal Converters
  • Avionic Backup Batteries
  • Battery Upgrades
  • Circuit Breakers
  • Communication Ports (RJ45, RS-232)
  • Electric Start Systems
  • Generators
  • Ground Use Batteries
  • Instrument Panel Lighting
  • Equipment Mounts
  • Instrument Panel Plugs

  • Inverters
  • LED Lighting (Internal & External)
  • NVIS Lighting
  • Passenger Service Units
  • Power Outlets
  • Redundant Wiring Removal
  • Switch Guards
  • Switches
  • USB Charging Sockets
  • Wiring Diagrams
  • Wiring Repairs

Mission systems: Avionics

Avionics, (derived from the term “aviation electronics”) makes up a large percentage of our work.

Our Design Team have a wealth of knowledge and experience in all areas of avionic design and integration, from simple instrument replacements to a full glass cockpit upgrade.

Mission Systems Design

Typical projects undertaken by our Mission System Avionics Team include:

  • ADS-B In & Out Solutions
  • Air Data / Attitude Heading Reference Systems
  • Airborne Image Recording Systems (AIRS)
  • Angle of Attack Systems (AOA)
  • Antennas (All Types)
  • Audio Panels & Intercom Systems
  • Cockpit Voice & Flight Data Recorders (CVFDR)
  • DME, NDB’s & VOR’s
  • Downlink Systems
  • Electronic Engine Instrumentation
  • Electronic Standby Instrument Systems (ESIS)
  • Emergency Locator Transmitters (ELT)
  • Flight Management Systems (FMS)
  • Flight Test Instrumentation (FTI)

  • Glass Cockpit Upgrades
  • Global Positioning Systems (GPS)
  • Inertial Navigation Systems (INS)
  • Instrument Landing Systems (ILS)
  • Performance Based Navigation (PBN)
  • Primary & Multi-Function Flight Displays (PFD & MFD’s)
  • Radar Altimeters (RADALT)
  • Satellite Communication Systems (SATCOM)
  • Terrain Avoidance & Warning System (TAWS)
  • Traffic Collison Avoidance Systems (TCAS)
  • Transponders (Elementary & Enhanced)
  • VHF & UHF Communications
  • Weather Radar (WX)

Mission systems: ISR and rear operator equipment

A large percentage of the Mission System’s teams Design & Production projects are Mission Systems focused, our approvals allow us to produce modifications for both military and civilian registered aircraft.
The team excel in providing special mission design solutions for Surveillance, Law Enforcement and Government operators.

Mission Systems Design & Modification 1

Typical projects undertaken by our Special Missions Team include:

  • Augmented Reality Mapping Systems (ARS)
  • Cabin Wi-Fi
  • Customer Specific Systems
  • Digital Audio Communication System (DACS)
  • Downlink & Uplink Systems
  • Inertial Navigation Systems (INS)
  • Light Detection and Ranging (LiDAR)
  • Mission Displays & Monitors
  • Mission Seating
  • NVIS Lighting

  • Operator Consoles
  • Operator Workstations
  • Retractable Camera Installations
  • Satellite Communication Systems (SATCOM)
  • Software Defined Radio Systems (SDR)
  • Specialist Antennas
  • Surveillance Role Fits
  • Tactical Radios (TETRA)
  • Threat Simulation
  • VHF & UHF Communications
  • Video / Mission Recorders
  • Video Management Systems (VMS)

Mission systems: Flight testing

Our Mission System team possess the ability to carry out Flight Testing under our own approval, commonly referred to as Flight Test Operations Manual (FTOM) approval.

Flight Testing is often required when an aircraft has undergone significant modification which could have an affect on the flight characteristics of the aircraft, such as installation of an external store.
Prior to the approval of the modification the aircraft may have to be flown under Approved Flight Test Conditions (AFC) to gather compliance data needed to approve the modification.

Mission Systems Design Military Modification 2

We possess the in-house capability to perform the following:

  • Approval for Flight Test Categories 2 & 4
  • Approval of Flight Test Conditions (AFC)
  • Major Changes & STC’s
  • Validations of Minor Changes, Repairs & STC’s
  • Experienced in working with the vast majority of the world’s NAA’s
  • Experienced in both Civil & Military certification


Modification performance testing

To ensure our Mission System modifications and parts meet both our customer and regulatory requirements, we regularly performs testing to establish product performance. Typical testing activities undertaken by us include:

  • Compilation of Qualification Test Plans & Reports
  • Electrical Load Analysis (ELA) testing
  • Retractable Camera Installations
  • Electromagnetic Compatibility (EMC) & Interference (EMI) testing
  • Flammability, Heat Release, Smoke Density & Toxicity testing
  • Proof of concept tests
  • RTCA DO-160 Environmental testing (temperature, altitude, vibration, shock etc.)
  • Seat crashworthiness testing
  • TEMPEST and Electromagnetic Security testing
  • Transmitting Portable Electronic Device (T-PED) testing

Contact us

Mission Systems Design & Modification Contact Details

phoneDesign enquiries +44 1202 013778
Contact the Mission Systems team

Supported aircraft

Airbus H145

The Airbus H145 helicopter is our aircraft of choice for HEMS operations. Find out more here.

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Beechcraft King Air 200 series

We offer operational & maintenance expertise across the Beechcraft King Air 200 series of aircraft.

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Beechcraft King Air 300 series

We offer availability and expertise across the BAE Hawker series of aircraft, including charter services, maintenance approval and capabilities and we have extensive management experience, having owned and operated BAE Hawker aircraft ourselves and for our clients.

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Britten Norman BN2-T Islander

The Britten Norman Islander BN-2T is used within both a civilian and Special Mission context being able to accommodate various interior fitments from executive to up to three stretchers for Air Ambulance operations.

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Bombardier Challenger series

We offer availability and expertise across the Bombardier Challenger series of aircraft, including charter services, maintenance approval and capabilities and we have extensive management experience, having owned and operated Bombardier Challenger aircraft ourselves and for our clients.

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Bombardier Global series

We offer availability and expertise across the Bombardier Global series of aircraft, including charter services, maintenance approval and capabilities and we have extensive management experience, having owned and operated Global aircraft ourselves and for our clients.

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Bournemouth International Airport (EGHH)

Our Bournemouth International Airport facility, a hangar and office facility of over 135,000 sq ft provides an extraordinary space which we aim to turn into one of Europe’s flagship business aviation facilities.

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Group Headquarters, 25 Templer Avenue, Farnborough.

25 Templer Avenue, Farnborough is home to our Group headquarters and is the nerve centre for the European Air division. With excellent access to the facilities at the airport.

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