Pyromechanisms - Chemring Group PLC

Pyromechanical components of the highest quality and reliability, for a range of mission critical systemsPyromechanismsPyromechanical components of the highest quality and reliability,for a range of mission critical systems1 PyromechanicsDelivering global protectionwww.chemring.co.ukDelivering global protection

Pyromechanical components of the highest quality and reliability, for a range of mission critical systemsAerospace Safety SystemsChemring designs and manufactures a range of highly effective safety systemsused in emergency situations including crew egress. These products aresupported by our safety testing equipment, including communications andoxygen supply testing.Aircrew EgressWe are the exclusive supplier to Martin Baker, the world’s leading manufacturer of ejection seats, fittedinto over 80 different airframes worldwide, including the JSF F-35. We support the entire Martin Bakerseat range, supplying a number of complementary products used in their ejection seat deploymentsystems including, rocket propellant, canopy cords, time delay and actuation devices. High reliability andhigh performance within the egress sequence is essential. Martin Baker ejection seats, using Chemringcomponents, are fitted to a wide variety of aircraft including: JSF, Typhoon, Rafale, Hawk and Tornado.Canopy RemovalCanopy cutting cords are used in a variety of military aircraft toassist in canopy break-up and removal, allowing safe escape during theemergency ejection process. Chemring actuators and thrusters are alsoused in canopy removal.Analog Recovery SequencerChemring manufactures the Analog Recovery Sequencer for theAdvanced Concept Ejection Seat. Our system, fitted into the seat,utilises multiple pyromechanical devices including percussion primers,dual electrical bridgewires, linear explosive lines and hot gas systems toinitiate the ACES II ejection seat system.Other Chemring egress components include:• Time Delay Devices• Parachute Release mechanisms• Ejection Seat Mortar Cartridges• Rocket Charges• Squibs and Electric IgnitersCanopy cutting cords are fitted to the Hawk T1A,operated by the Red Arrows display team.www.chemring.co.ukACES II ejection seat deployment, moments after canopy removal.Pyromechanics 3

Pyromechanical components of the highest quality and reliability, for a range of mission critical systemsCommercial AerospaceChemring has successfully transitioned to Commercial Aerospace andpassenger safety systems, providing critical pyromechanisms for useon-board commercial aircraft. Chemring provides pyrotechnic bottle cuttersto initiate the aircrafts Emergency Oxygen system, to enable the immediaterelease of oxygen from the overhead oxygen supply masks.Emergency Oxygen System InitiatorChemring’s Emergency Oxygen System Initiator or ‘bottle-punch’quickly and reliably allows an emergency flow of oxygen to commenceas part of the passenger emergency oxygen system.Working with the leading supplier, advantages over existing systemsinclude greatly reduced weight (25% mass of existing systems), lowercost and greater efficiency over existing systems.SeparatorsChemring supplies Tension Rod separators for use on helicopters, whichprevent critical parts from loosening under extreme vibration andtemperature conditions.The link and clamp separators are designed to delink the retractablegear doors allowing deployment of the emergency flotation system.The assembly is designed to survive hydraulic fluid, aircraft fuel and saltwater environments.Chemring also provides spoiler overide actuators forthe Boeing 767.Link & Clamp Separator.Sikorsky’s S-76 ‘Spirit’ helicopter, which uses Chemring separators.Chemring supplies critical emergency oxygen release systems.www.chemring.co.ukPyromechanics 5

Pyromechanical components of the highest quality and reliability, for a range of mission critical systemsSpaceSeparation SystemsAs a trusted supplier of space qualified components, Chemring products are designed to operate underextreme conditions. Our Separation Systems can reliably undertake a range of mission critical functions, withguaranteed levels of performance and reliability. Such functions might include the release of structures orcomponents such as multi-stage launch vehicles, separation of nose cones and capsules, or the release ofbooster rockets, tanks and other jettison equipment.Pyrotechnic Separation NutsGeneral features include lightweight, high-load capability, extremely lowshock output with complete gas and particle containment. These nutsactuate on very low pressure with large bolt insertion tolerance.Chemring also supplies ultra-low shock separation nuts, using asimilar design.Non-Pyrotechnic Separation NutsWe have developed an extreme low-shock output, non-explosiveseparation nut. These nuts are actuated by a miniature electric motoron low energy with large bolt insertion tolerance. Unique featuresinclude 25 times resettable and reusability and no need for disassembly.Separation BoltsOur separation bolts are designed and manufactured for use inapplications where rapid structure separation is demanded. Chemring’sSeparation Bolts have been fully qualified for fairing separation on theATLAS and DELTA launch vehicles. Bolts do not fragment; rather, theyseparate into two parts, one of which is ejected from the structure.Cutters (Bolt, Rod and Cable)Chemring cutters are designed for robustness and can be used in spaceas well as in deep submergence applications, for cutting reefing lines,electrical cables, steel cables or aluminium, titanium and steel boltsor rods. Over the past 20 years, our cutters have demonstrated highreliability on countless earth-orbital missions. Chemring cutters are builtwith the option to be single blade or mechanically redundant.Sample range of Separation and Release Units.Non-Pyrotechnic Electric Separation Nuts.www.chemring.co.ukPyromechanics 7

Pyromechanical components of the highest quality and reliability, for a range of mission critical systemsMissilesChemring supplies a wide range of components supporting a number of critical missile,bomb and torpedo programmes across an international military customer base.Launch and FlyChemring manufactures actuators, retention mechanisms, motors and weapon release cartridges to enable arange of ‘Launch and Fly’ activities. Typical cartridge operating times are from 0.01 seconds to 10 seconds withoperating temperatures from -32°C to +60°C, although specialised propellants can be incorporated to extend therange from -54°C to +150°C. Other valves and separation systems allow fluid/gas flow and enables sequencedlaunch and fly events.Firing CablesLow altitude firing cables that are 360° shielded for EMC/EMIprotection.Piston ActuatorsUsed to crush a fuze, in order to start an explosive train or to arma Safe and Arm device.Bridgewire InitiatorsLow voltage, dual hot bridgewire cartridges that initiate numerouscomponents on a platform, including ignition of a gas generator formissile launch.Separation NutsTo attach the aft of a missile to a shipping canister or capsule launchingsystem and to restrain it until initiation.Cable CuttersElectrically initiated cable cutters sever electrical cable bundles eitherprior to launching, or during flight.High-pressure Pneumatic CylindersThese are used to start a sequence of control surface deployments,such as opening an inlet door to a sustainer motor.Lug Retraction DevicesUpon actuation of a cartridge, a spring loaded spreading rod extends toretract lugs into the missile body to reduce its radar cross section.Wing and Tail Retention MechanismsUsed to retain missile wings/tails during storage. Upon actuation, afrangible pin fails allowing missile wings/tails to rotate into a deployedorientation.Wedge Retention MechanismsDesigned to hold aerodynamic features in place during flight. Uponinitiation, features are allowed to release from the missile.The Joint Air to Surface Standoff Missile (JASSM) uses a rangeof flight components, including our wing retention mechanisms,shown above.The Tomahawk cruise missile uses a number of Chemringcomponents within its launch sequence.8 Pyromechanics Delivering global protection

Pyromechanical components of the highest quality and reliability, for a range of mission critical systemsMissilesRelated ProductsChemring also supplies rocket motors, with a strong track record in fuze and warhead design,manufacture and integration. In addition, we offer alternative devices (not based upon pyrotechnics orpyromechanisms) which perform similar functions, such as our electronic firing systems.Rocket Motors and WarheadsWe are a single source rocket motor supplier (launch and flight) to the NLAW (Next Generation Light Anti-tankWeapon) programme. We also manufacture and supply warheads, leading development of Insensitive Munitionsand Low Vulnerability Ammunition (IM/LOVA) technology.Other Electronic SubsystemsElectronic Safe Arm FuzeOur electronic Safe Arm Fuze utilizes an Exploding Foil Initiator (EFI)and is the first fully electronic, range qualified, flight termination system.EFIs provide short, precision firing times. Our system is a dual-mode,single-channel, fully electronic safe arm fuze with a removable keylockassembly. Its function is to preclude premature arming and consequentinitiation of the detonator during transportation, handling, pre-launchand launch conditions. It also functions when commanded to terminateflight (missile destruct) during missile fly out.Acoustic Firing DevicesAcoustic Firing Devices are part of essentially non-magnetic equipmentused in the proximity of magnetic influence ordnance. It providesUS Navy divers with a safe firing system for underwater demolitionoperations.Chemring supplies rocket motors and other missile components including warheads to a range of missile programmes including2.75” air launched rockets and the shoulder launched NLAW.Electronic Safe Arm Unit.Acoustic Fire Code Transmitter Electronics Unit.10 Pyromechanics Delivering global protection

Pyromechanical components of the highest quality and reliability, for a range of mission critical systemsCapabilitiesAdvanced Design & Manufacturing• Mechanical, electronic and chemical engineers• CNC lathes with swing to 580mm• 4 and 5 axis vertical machining centres• Dual spindle mill / turns• Thread roller and EDM• On-site test and inspection facilitiesHigh Quality Assembly (Electronics & Ordnance)• Spray and dip conformal coating• Wave and precision soldering• Laser optics assembly• Pyrotechnic blending and loading• Glass-to-metal sealing• Ceramic grinding• Welding (TIG, projecting, stitch and laser)• Precision mechanical assemblyComprehensive Space Environmental Testing Centre• Complete in-house testing capabilities• Dynamics testing• Climatic testing• Vibration/shock• Thermal temperature age testing• X-ray/non-destructive• Ordnance test centreRaw Material Supply• HMX and HMX formulations• RDX and RDX formulations• NTO and NTO formulations• HNS• Butyl-NENA and similar NENAs• IM/LOVA propellants• Lead Azidewww.chemring.co.uk11Pyromechanics Counter-IED

Delivering global protectionwww.chemring.co.ukDelivering global protectionwww.chemring.co.ukDelivering global protectionwww.chemring.co.ukDelivering global protectionwww.chemring.co.ukDelivering global protectionwww.chemring.co.ukDelivering global protectionwww.chemring.co.ukPyromechanical components of the highest quality and reliability, for a range of mission critical systemsCounter-IEDHomeland SecurityCounter-IEDForce ProtectionCountermeasuresMunitionsPyrotechnicsPyromechanismsInnovative network security, surveillance, signalsintelligence and CBE threat detection solutionsInnovative route proving & clearance, CBE threat detection,EOD and military demolitions solutionsElectronic and expendable countermeasuresfor land, sea and air systems.Medium-to-large calibre artillery and mortar ammunition,missile components and warheadsHigh quality pyrotechnics formilitary and security applicationsPyromechanical components of the highest quality and reliability,for a range of mission critical systemsChemring Group PLCChemring House1500 ParkwayWhiteleyFarehamHampshireUnited Kingdom PO15 7AFTel: +44 (0)1489 881880Email: info@chemring.co.uk© Chemring Group PLC 2012The information in this document is the property of Chemring Group PLC and may not be copied or communicated to a third party or used for any12purpose other than that for which it is supplied without the express written consent of Chemring Group PLC. This information is given in good faith basedupon the latest information available to Chemring Group PLC; no warranty or representation is given concerning such information, which must not betaken as establishing any contractual or other commitment binding upon Chemring Group PLC or any of its subsidiary or associated companies.PyromechanicsDelivering global protection