Change #32
Accepted by sd on 2026-09-16 03:07. It is live on the pages below; each page's History tab shows the resulting revision.
Change #32 · Deepen the helicopter bill of materials: fasteners, wiring, hoses and fittings, engine internals and hardware counted as parts accepted
New: Hex Bolt helicopter-hex-bolt
- Created Hex Bolt (part): "Flanged hex bolt, M8 to M24, used throughout the structure, covers and equipment mounts."
New: Hex Nut helicopter-hex-nut
- Created Hex Nut (part): "Flanged or nyloc hex nut mating the bolts."
New: Washer helicopter-washer
- Created Washer (part): "Flat or spring washer under bolt heads and nuts."
New: Cable Tie & Clamp helicopter-cable-tie
- Created Cable Tie & Clamp (part): "Tie, P-clip or saddle clamp securing wiring, hoses and lines to the structure."
New: Insulated Wire (cut length) helicopter-wire
- Created Insulated Wire (cut length) (part): "One cut-to-length insulated conductor in the harness, terminated at both ends."
New: Crimp Terminal helicopter-crimp-terminal
- Created Crimp Terminal (part): "Tin-plated terminal crimped to a wire end and seated in a connector or on a stud."
New: Fuse helicopter-fuse
- Created Fuse (part): "Blade, midi or cartridge fuse protecting one circuit."
New: Airframe Rivet helicopter-rivet
- Created Airframe Rivet (part): "Solid or blind rivet joining skins, frames and stringers."
New: Fuselage Frame helicopter-frame
- Created Fuselage Frame (part): "Formed or machined transverse frame of the cabin structure or tail boom."
New: Stringer & Longeron helicopter-stringer
- Created Stringer & Longeron (part): "Longitudinal stiffener riveted to the skin."
New: Fairing & Cowling helicopter-fairing
- Created Fairing & Cowling (part): "Removable composite fairing or engine cowling panel with quick-release latches."
New: Access Panel helicopter-access-panel
- Created Access Panel (part): "Removable inspection panel with camloc or screw fasteners."
New: Latch & Camloc helicopter-latch
- Created Latch & Camloc (part): "Quarter-turn fastener or latch on a cowling, door or panel."
New: Bonding Jumper helicopter-bonding-jumper
- Created Bonding Jumper (part): "Braided strap electrically bonding a panel or component to the airframe."
New: Door Hinge & Latch helicopter-door-hardware
- Created Door Hinge & Latch (part): "Hinge, latch, stay and jettison mechanism for one cabin door."
New: Seat Belt & Harness helicopter-seat-belt
- Created Seat Belt & Harness (part): "Four-point harness with inertia reel for one seat."
New: Interior Trim Panel helicopter-interior-trim
- Created Interior Trim Panel (part): "Lightweight moulded lining panel inside the cabin."
New: Soundproofing Blanket helicopter-soundproofing
- Created Soundproofing Blanket (part): "Quilted insulation blanket behind the cabin lining."
New: Floor Panel helicopter-floor-panel
- Created Floor Panel (part): "Honeycomb sandwich floor panel with tie-down fittings."
New: Cargo Tie-Down Fitting helicopter-tie-down
- Created Cargo Tie-Down Fitting (part): "Recessed ring in the floor for cargo restraint."
New: Horizontal Stabilizer helicopter-horizontal-stabilizer
- Created Horizontal Stabilizer (part): "Fixed tailplane on the tail boom with end plates."
New: Vertical Fin helicopter-vertical-fin
- Created Vertical Fin (part): "Fin at the end of the tail boom carrying the tail rotor."
New: Tail Rotor Guard helicopter-tail-rotor-guard
- Created Tail Rotor Guard (part): "Tubular guard below the tail rotor."
New: Blade Attachment Bolt helicopter-blade-bolt
- Created Blade Attachment Bolt (part): "Precision bolt and bushing retaining a rotor blade in its grip."
New: Elastomeric Bearing helicopter-elastomeric-bearing
- Created Elastomeric Bearing (part): "Laminated rubber and steel bearing allowing blade flap, lead-lag and feathering."
New: Droop Stop helicopter-droop-stop
- Created Droop Stop (part): "Stop limiting blade droop at rest and low rotor speed."
New: Rotor Brake helicopter-rotor-brake
- Created Rotor Brake (part): "Disc brake on the transmission stopping the rotor after shutdown."
New: Mast Bearing helicopter-mast-bearing
- Created Mast Bearing (part): "Large bearing supporting the rotor mast in the transmission housing."
New: Driveshaft Hanger Bearing helicopter-hanger-bearing
- Created Driveshaft Hanger Bearing (part): "Bearing and support hanging the tail rotor driveshaft along the boom."
New: Flexible Coupling helicopter-flex-coupling
- Created Flexible Coupling (part): "Thomas or diaphragm coupling between driveshaft sections."
New: Transmission Mount helicopter-transmission-mount
- Created Transmission Mount (part): "Strut or elastomeric mount transferring rotor loads into the cabin roof structure."
New: Chip Detector helicopter-chip-detector
- Created Chip Detector (part): "Magnetic plug that warns of metal particles in the gearbox oil."
New: Torque & Speed Sensor helicopter-torque-sensor
- Created Torque & Speed Sensor (part): "Sensor on the transmission input reporting torque and rotor speed."
New: Compressor Blade helicopter-compressor-blade
- Created Compressor Blade (part): "One rotor blade of the axial or centrifugal compressor."
New: Compressor Stator Vane helicopter-compressor-vane
- Created Compressor Stator Vane (part): "One stationary vane of the compressor."
New: Turbine Blade helicopter-turbine-blade
- Created Turbine Blade (part): "One blade of the gas-generator or power turbine."
New: Turbine Nozzle Vane helicopter-turbine-vane
- Created Turbine Nozzle Vane (part): "One stationary vane directing gas onto a turbine stage."
New: Fuel Nozzle helicopter-fuel-nozzle
- Created Fuel Nozzle (part): "Atomising nozzle spraying fuel into the combustor."
New: Igniter Plug helicopter-igniter
- Created Igniter Plug (part): "High-energy spark igniter in the combustor."
New: Engine Mount helicopter-engine-mount
- Created Engine Mount (part): "Strut and fitting attaching the engine to the deck."
New: Exhaust Duct helicopter-exhaust-duct
- Created Exhaust Duct (part): "Stainless exhaust duct and ejector."
New: Air Inlet & Particle Separator helicopter-inlet
- Created Air Inlet & Particle Separator (part): "Engine air inlet with inertial particle separator or barrier filter."
New: Engine Oil Tank & Cooler helicopter-engine-oil-system
- Created Engine Oil Tank & Cooler (part): "Engine oil tank and air-cooled oil cooler with blower."
New: Engine Sensor helicopter-engine-sensor
- Created Engine Sensor (part): "N1, N2, torque, temperature, pressure and vibration sensors."
New: Engine Bolt & Stud helicopter-engine-bolt
- Created Engine Bolt & Stud (part): "Fasteners in the engine and its installation."
New: Control Rod helicopter-control-rod
- Created Control Rod (part): "Push-pull rod in the flight control run."
New: Bellcrank & Lever helicopter-bellcrank
- Created Bellcrank & Lever (part): "Pivoting lever changing the direction of a control run."
New: Rod End Bearing helicopter-rod-end
- Created Rod End Bearing (part): "Spherical rod end at each end of a control rod."
New: Hydraulic Line helicopter-hydraulic-line
- Created Hydraulic Line (part): "Rigid or flexible line in the servo hydraulic system."
New: Trim Actuator helicopter-trim-actuator
- Created Trim Actuator (part): "Electric actuator providing force trim on a control axis."
New: Hydraulic Filter & Accumulator helicopter-hydraulic-filter
- Created Hydraulic Filter & Accumulator (part): "Filter and accumulator in the servo hydraulic system."
New: Circuit Breaker helicopter-circuit-breaker
- Created Circuit Breaker (part): "Resettable breaker on the overhead or console panel."
New: Exterior Light helicopter-position-light
- Created Exterior Light (part): "Position, anti-collision, landing or search light."
New: Pitot Tube & Heater helicopter-pitot-heater
- Created Pitot Tube & Heater (part): "Heated pitot probe."
New: Antenna helicopter-antenna
- Created Antenna (part): "VHF, GPS, transponder, ELT or radar altimeter antenna."
New: Transponder & ADS-B helicopter-transponder
- Created Transponder & ADS-B (part): "Mode S transponder with ADS-B out."
New: Emergency Locator Transmitter helicopter-elt
- Created Emergency Locator Transmitter (part): "Crash-activated distress beacon."
New: Audio Panel & Intercom helicopter-audio-panel
- Created Audio Panel & Intercom (part): "Audio selector and intercom for crew and passengers."
New: Headset helicopter-headset
- Created Headset (part): "Noise-attenuating headset with microphone."
New: Radar Altimeter helicopter-radar-altimeter
- Created Radar Altimeter (part): "Radio altimeter for low-level flight."
New: Fuel Line helicopter-fuel-line
- Created Fuel Line (part): "Rigid or flexible fuel line with fittings."
New: Fuel Quantity Probe helicopter-fuel-probe
- Created Fuel Quantity Probe (part): "Capacitance probe in the tank."
New: Fuel Shutoff Valve helicopter-fuel-valve
- Created Fuel Shutoff Valve (part): "Electrically operated firewall shutoff valve."
New: Skid Shoe helicopter-skid-shoe
- Created Skid Shoe (part): "Replaceable wear shoe under the skid tube."
New: Skid Damper helicopter-skid-damper
- Created Skid Damper (part): "Damper preventing ground resonance."
New: Ground Handling Wheel Fitting helicopter-ground-wheel-fitting
- Created Ground Handling Wheel Fitting (part): "Fitting for the removable ground handling wheels."
New: Fire Extinguisher & First Aid Kit helicopter-fire-extinguisher
- Created Fire Extinguisher & First Aid Kit (part): "Cabin fire extinguisher and first aid kit."
Fuselage helicopter-fuselage
- Added helicopter-frame × 28
- Added helicopter-stringer × 64
- Added helicopter-rivet × 7200
- Added helicopter-fairing × 12
- Added helicopter-access-panel × 22
- Added helicopter-latch × 60
- Added helicopter-bonding-jumper × 40
- Added helicopter-door-hardware × 4
- Added helicopter-seat-belt × 5
- Added helicopter-interior-trim × 20
- Added helicopter-soundproofing × 24
- Added helicopter-floor-panel × 8
- Added helicopter-tie-down × 8
- Added helicopter-horizontal-stabilizer × 1
- Added helicopter-vertical-fin × 1
- Added helicopter-tail-rotor-guard × 1
- Added helicopter-hex-bolt × 900: "structural and equipment fasteners"
- Added helicopter-hex-nut × 700
- Added helicopter-washer × 900
Main Rotor System helicopter-main-rotor
- Added helicopter-blade-bolt × 8
- Added helicopter-elastomeric-bearing × 4
- Added helicopter-droop-stop × 4
- Added helicopter-rotor-brake × 1
- Added helicopter-mast-bearing × 2
- Added helicopter-hex-bolt × 60
- Added helicopter-hex-nut × 60
Tail Rotor System helicopter-tail-rotor
- Added helicopter-hanger-bearing × 5
- Added helicopter-flex-coupling × 4
- Added helicopter-hex-bolt × 40
- Added helicopter-hex-nut × 40
Main Transmission / Gearbox helicopter-main-transmission
- Added helicopter-transmission-mount × 4
- Added helicopter-chip-detector × 3
- Added helicopter-torque-sensor × 2
- Added helicopter-hex-bolt × 48
Turboshaft Engine helicopter-engine
- Added helicopter-compressor-blade × 210
- Added helicopter-compressor-vane × 160
- Added helicopter-turbine-blade × 96: "two stages"
- Added helicopter-turbine-vane × 60
- Added helicopter-fuel-nozzle × 12
- Added helicopter-igniter × 2
- Added helicopter-engine-mount × 3
- Added helicopter-exhaust-duct × 1
- Added helicopter-inlet × 1
- Added helicopter-engine-oil-system × 1
- Added helicopter-engine-sensor × 14
- Added helicopter-engine-bolt × 260
- Added Ball Bearing × 6: "shaft bearings"
- Added Oil Seal × 6
Flight Control System helicopter-flight-controls
- Added helicopter-control-rod × 24
- Added helicopter-bellcrank × 16
- Added helicopter-rod-end × 48
- Added helicopter-hydraulic-line × 12
- Added helicopter-trim-actuator × 3
- Added helicopter-hydraulic-filter × 2
- Added helicopter-hex-bolt × 120
- Added helicopter-hex-nut × 120
Electrical System helicopter-electrical
- Connector quantity 6 → 180
- Added helicopter-wire × 1200
- Added helicopter-crimp-terminal × 2400: "two per wire"
- Added helicopter-circuit-breaker × 60
- Added Relay × 20
- Added helicopter-position-light × 7
- Added helicopter-pitot-heater × 1
- Added helicopter-antenna × 8
- Added helicopter-cable-tie × 360
Avionics & Cockpit Suite helicopter-avionics
- Added helicopter-transponder × 1
- Added helicopter-elt × 1
- Added helicopter-audio-panel × 1
- Added helicopter-headset × 5
- Added helicopter-radar-altimeter × 1
- Added Connector × 40
Fuel System helicopter-fuel-system
- Added helicopter-fuel-line × 8
- Added helicopter-fuel-probe × 2
- Added helicopter-fuel-valve × 1
- Added helicopter-hex-bolt × 24
Landing Skid Gear helicopter-landing-skids
- Added helicopter-skid-shoe × 4
- Added helicopter-skid-damper × 2
- Added helicopter-ground-wheel-fitting × 2
- Added helicopter-hex-bolt × 32
Helicopter helicopter
- Added helicopter-fire-extinguisher × 1
Machine findings
- Fuselage: 25 direct children (dominant function: Fasten or join) — worth checking for integration or standardization
- Turboshaft Engine: 21 direct children (dominant function: Convert energy) — worth checking for integration or standardization
- Flight Control System: 13 direct children (dominant function: Human interface) — worth checking for integration or standardization
- Main Rotor System: 12 direct children (dominant function: Process material) — worth checking for integration or standardization
- Electrical System: 12 direct children (dominant function: Connect electrically) — worth checking for integration or standardization
- Helicopter: 11 direct children (dominant function: Transmit motion) — worth checking for integration or standardization
- Main Transmission / Gearbox: 11 direct children (dominant function: Sense or measure) — worth checking for integration or standardization
- Avionics & Cockpit Suite: 11 direct children (dominant function: Communicate signal) — worth checking for integration or standardization
- Tail Rotor System: 8 direct children (dominant function: Transmit motion) — worth checking for integration or standardization
- Fuel System: 8 direct children (dominant function: Store energy) — worth checking for integration or standardization
- Landing Skid Gear: 7 direct children (dominant function: Fasten or join) — worth checking for integration or standardization
- Helicopter functions after this change: Support structure, Connect electrically, Fasten or join
- Fuse functions after this change: Process material