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Dick johnson ppt Dick johnson ppt Document Transcript

  • 9/8/2008 Safety by Design: A Gulfstream Perspective Richard L. Johnson Vice President, Engineering Gulfstream Aerospace 23 September,2008ABC Conference, 23 Sept 08, Page 0 Topics • Company Overview • The New Gulfstream G650 • Other R&D InitiativesABC Conference, 23 Sept 08, Page 1 1
  • 9/8/2008 Company OverviewABC Conference, 23 Sept 08, Page 2 Gulfstream Timeline • 1958 Gulfstream I first flight – First purpose built business aircraft • 1967 Gulfstream facility built in Savannah – GII and subsequent large cabin aircraft built in Savannah • 1978 Grumman sells Gulfstream to Allen Paulsen Savannah Facility - 1967 • 1980 GIII enters into service with winglets GI GII GIIIABC Conference, 23 Sept 08, Page 3 2
  • 9/8/2008 Gulfstream Timeline, cont’d. • 1987 Gulfstream IV entry into service – First all glass cockpit • 1997 Gulfstream V – First ultra-long-range airplane – Winner of the Robert J. Collier Trophy GIV Cockpit • 1999 Gulfstream acquired by General Dynamics • 2001 Acquisition of Galaxy Aerospace – Astra SPX becomes the G100 – Galaxy becomes the G200 GV 50 Years of Business Aviation ExperienceABC Conference, 23 Sept 08, Page 4ABC Conference, 23 Sept 08, Page 5 3
  • 9/8/2008 Gulfstream Current Manufacturing Facilities Appleton, Wisconsin Completions C l i Paint/Stripping Facility 800,347 ft2 Savannah, Georgia Long Beach, California Corporate Headquarters Completions Major Assembly, Engineering, Paint/Stripping Facility and Completions 415,062 ft2 Paint/Stripping Facility 1,516,125 ft2 Mexicali, Mexico Dallas, Texas Sub Assembly Sub-Assembly Support Completions C l ti Brunswick, Brunswick Georgia and Spares Completions 200,000 ft2 Paint/Stripping Facility 359,280 ft2 107,087 ft2 Over 3.3 Million Total Square Footage with Over 9,100 EmployeesABC Conference, 23 Sept 08, Page 6 Gulfstream Product Evolution G550 GV 6,000 G500 G450 GIV-SP G400 Range GIV 4,000 G350 (nm) G300 GIII G200 G150 GII G100 2,000 GI 1959 1967 1980 1987 1997 2001 2003 2006 Entry Into Service Year Over 1,700 executive transports with operational experience of over 12.5 million flight hours and 7.5 million landings** Through the end23 Sept 08, Page 7ABC Conference, of 2007 4
  • 9/8/2008 Present Gulfstream Product Line 2,950 nm with 4 Passengers WIDE-CABIN HIGH-SPEED G150 3,400 nm with 4 Passengers LARGE-CABIN MID-RANGE G200 3,800 nm with 8 Passengers LARGE-CABIN MID-RANGE G350 4,350 nm with 8 Passengers LARGE-CABIN LONG-RANGE G450 5,800 nm with 8 Passengers LARGE-CABIN ULTRA-LONG RANGE G500 6,750 nm with 8 Passengers LARGE-CABIN ULTRA-LONG RANGE G550ABC Conference, 23 Sept 08, Page 8 Varied Special Mission Applications Intelligence, Surveillance & Atmospheric Research Reconnaissance (ISR) Conformal Airborne Early Warning Maritime Patrol & Surveillance Multi-Purpose AircraftABC Conference, 23 Sept 08, Page 9 5
  • 9/8/2008 The Gulfstream G650ABC Conference, 23 Sept 08, Page 10 New Gulfstream Flagship - The Gulfstream G650 The Gulfstream G650 establishes a new market segment Longest range and fastest speeds g g p Largest, most comfortable cabin in class g – 7,000 NM at Mach 0.85 Most advanced cockpit and systems – 5,000 NM at Mach 0.90 – Maximum cruise at Mach 0.925 State-of-the-art Manufacturing – Advanced aerodynamic designABC Conference, 23 Sept 08, Page 11 6
  • 9/8/2008 G650 Design Features System Enhancements for Improved Reliability New Tail and Maintainability 3 Axis Fly by Wire Bonded Fuselage Increased Thrust Lower Cabin Engines Altitude Longer, Wider, Larger Baggage Taller Cabin Compartment Larger Main Entry Door New Advanced High Speed Wing PlaneView II Larger Windows,Advanced Flight Deck 2 Additional Windows Highest Speed, Longest Range, Best CabinABC Conference, 23 Sept 08, Page 12 G650 Program Milestones • Program Internal Launch May 2005 • Wing Contour Freeze Sept 2006 • Preliminary Design Review June 2007 • Critical Design Review 3Q 2008 • First Flight 2H 2009 • FAA/EASA Certification 2011 • Entry into Service 2012ABC Conference, 23 Sept 08, Page 13 7
  • 9/8/2008 Price - Productivity G650 is an Addition to the ce Gulfstream Product Line Typically Equipped Pric New G650 G550 G500 G450 G350 Gulfstream Models G200 Competitor Models G150 Productivity (Range x Speed x Volume^0.333)ABC Conference, 23 Sept 08, Page 14 G650 Performance • Longest range business jet – 7,000 nm at Mach 0.85 • Fastest civil aircraft – 5 000 nm at M h 0 90 5,000 t Mach 0.90 – Maximum operating speed M0.925 • High cruise altitudes – 41,000 to 51,000 feet – Fly above adverse weather and airline traffic • Excellent fuel efficiency • E Excellent takeoff and landing ll t t k ff d l di performance – < 6,000 ft balanced field length at maximum takeoff weight – 3,000 ft landing distance at maximum landing weight All performance is based on preliminary data and subject to changeABC Conference, 23 Sept 08, Page 15 8
  • 9/8/2008 G650 Maximum Range Departing New York Moscow Petropavlovsk Beijing NEW YORK Baku Tokyo Delhi Dubai Honolulu Lagos Nairobi Tahiti M0.90 Buenos Aires Cape Town Santiago 8 Passengers and 4 Crew Cruise Speed as Shown, NBAA IFR Fuel Reserves, 85% Annual Winds, Great Circle Distance, M0.85 ISA Conditions All performance is based on preliminary data and subject to change Theoretical performance based on the noted assumptions. Actual performance will be affected by ATC routing, operating speed, weather, outfitting options and other factors.ABC Conference, 23 Sept 08, Page 16 G650 Maximum Range Departing London LONDON Seattle Beijing Tokyo Los Angeles Delhi Miami Honolulu Hong Kong Singapore Brasilia Mauritius Buenos Aires M0.90 Cape Town Santiago 8 Passengers and 4 Crew Cruise Speed as Shown, NBAA IFR Fuel Reserves, 85% Annual Winds, M0.85 Great Circle Distance, ISA Conditions All performance is based on preliminary data and subject to change Theoretical performance based on the noted assumptions. Actual performance will be affected by ATC routing, operating speed, weather, outfitting options and other factors.ABC Conference, 23 Sept 08, Page 17 9
  • 9/8/2008 Fuel Efficiency Comparison 3,000 nm Mission at Mach 0.85 G650 F7X GEX XRS G550 10,000 12,000 14,000 16,000 18,000 20,000 Block Fuel ~ lb G650 Fuel Burn Levels are Comparable to Smaller Aircraft3,000 nm Mission at Mach 0.85, Typical BOW, 8 Passengers (1,800 lb), ISA Day, Zero Wind, NBAA IFR Fuel Reserves,Existing Airplanes Based on Operating / Cruise Manual DataG650 Performance data is preliminary and subject to changeABC Conference, 23 Sept 08, Page 18ABC Conference, 23 Sept 08, Page 19 10
  • 9/8/2008 Gulfstream G650 Cabin Highlights• Largest purpose built business jet cabin – 14 inches wider than the G550 – 28% more cabin volume, 30% more floor area• Long seating areas – Extra seat recline and leg room – Large stateroom capability• Improved cabin accessibility – Larger main entry door – Improved exterior baggage loading• Largest windows – 16% larger than current windows View of the G650 Cabin Test Mockup – 16 windows total• Improved cabin environment The Gulfstream G650 provides – Cabin Essential™ design the widest, quietest and most – Industry leading cabin noise levels comfortable cabin – 4,850 ft max cabin altitude at 51,000 ft – Always 100% fresh airABC Conference, 23 Sept 08, Page 20 G650 All New Windows • Improved viewing and comfort – Largest windows in the industry – 16% greater window area than G550 – Optimized to seating pitch – Rotated up 3.4 inches on fuselage for improved viewing angle Previous Gulfstream Aircraft G650 49.0 in 52.5 in 3.4 in 26.0 in 28.0 inABC Conference, 23 Sept 08, Page 21 11
  • 9/8/2008 G650 Emergency Exits 32” • New, large overwing exits • Two per side for highest safety standard • Exceeds certification requirements 26 26” Emergency Exit HatchABC Conference, 23 Sept 08, Page 22 G650 Baggage Area • Larger usable baggage capability – Usable Baggage volume of 195 ft3 (11% more than G550) – 31.5 ft2 floor area (9% more than G550) – 42.8” x 35.7” exterior door (8% larger than G550) Forward • Accessibility – 4 inches lower to the ground for easier loading of baggage – Accessible in flight to 51,000 ft • Enhanced Safety – Secondary pressure bulkhead – Passively inflated external door sealABC Conference, 23 Sept 08, Page 23 12
  • 9/8/2008 G650 Systems • New PlaneView II cockpit – Standard Synthetic Vision Primary Flight Display – Standard EVS II with next generation head up guidance system – New Weather radar 3-D scan with vertical view – New Integrated standby multifunction controller • New fly-by-wire flight control system with multiple redundancy • New solid state secondary power distribution system • Improved electric and hydraulic systems • New higher thrust, more fuel efficient Rolls-Royce BR725 engines • PlaneConnect™ maintenance trend predictive and diagnostic service System architecture designed for redundancy and improved reliabilityABC Conference, 23 Sept 08, Page 24 G650 New PlaneView II Cockpit Features • Gulfstream PlaneView II flight deck based on Honeywell Primus Epic avionics • Four large 14 inch adaptive LCD displays • New LCD Head Up Display with EVS II standard • Standard Synthetic Vision - Primary Flight Display (SV-PFD) • New St db N Standby Multifunctional Controller • 3 PlaneBook tablet computers standard • Compact pedestalABC Conference, 23 Sept 08, Page 25 13
  • 9/8/2008 G650 Standard PlaneView II Features • Triplex Flight Management System • Automatic Emergency Descent Mode • PlaneView II Enhancements – RNP 0.1 capable – FANS-1 Controller Pilot Datalink Communication (CPDLC) – existing ACARS protocol – GPS Wide Area Augmentation System (WAAS) – Lateral Precision Vertical (LPV) approach capability – INAV – improved airway labeling and Most technologically advanced peaks display flight deck with new levels of safety and situational awarenessABC Conference, 23 Sept 08, Page 26 New Standby Multifunction Controller (SMC) • Combines current display controller functionality with standby flight instruments • 5” LCD display and switch panel • Reverts to standby display if PFD is lost • Additional Functionality – Refuel control – Cabin Pressure Control System (CPCS) semi-mode control – Weather radar control – Hydraulic and oil level display – Tire pressure display Integrated LCD Display Increases Functionality and Improves Safety & ReliabilityABC Conference, 23 Sept 08, Page 27 14
  • 9/8/2008 New 3-D Scan Weather Radar • Fully Automatic Honeywell RDR 4000 weather radar • 3-D scanning capability with vertical profile view included in display • Integral terrain database for efficient ground clutter elimination More Complete Weather Depiction for Improved Situational AwarenessABC Conference, 23 Sept 08, Page 28 Fly-by-Wire Flight Control System• Primary flight control system EHSA – Right Hydraulic – 3-axis digital system EHSA – Left Hydraulic – 2 flight control computers EBHA – Electric – 4 dissimilar channels (quadruplex) – Each channel able to command every y control surface• Backup flight control system with “get home” capability – 3-axis Backup Flight Control Unit (BFCU) REU 9 REU 10 – Totally independent hardware & software REU 7 REU 8 – Exceeds certification requirements REU 5 REU 6 REU 3 REU 4• Electric Backup Hydrostatic Actuators REU 1 REU 2 (EBHA) – S lf contained hydraulic system with Self t i dh d li t ith independent electric power – Enhanced safety Right Hydraulic REU 15 Left Hydraulic – Dedicated backup batteries Electric REU 16 REU 13 REU 14 EBHA REU 11 REU 12 Highly Redundant and Technologically Advanced Flight Control SystemABC Conference, 23 Sept 08, Page 29 15
  • 9/8/2008 G650 Flight Deck Controls • Maintains control column / yoke and pedal arrangement – Same basic layout as G550 – Goal is to have a common pilot type rating with the G550 – Similar approach taken by Boeing (777, 787) and Embraer (170 / 175 / 190 / 195) • Improves situational awareness through linked controls – Crew coordination of control surface inputs – Visual indication of autopilot and autothrottle inputsABC Conference, 23 Sept 08, Page 30 New Secondary Power Distribution system • Controls and protects selected non flight-critical electrical loads • Solid state power controllers (SSPC) within the distribution units function as electronic circuit breakers • System Benefits: – 300 lb weight savings over conventional circuit breakers – Eliminates more than 400 circuit breakers and relays – R Removes more th 3 miles of wiring than il f ii MCDU and CAS provide control and status – Provides improved circuit protection, CB pull / reset / collar is MCDU function including arc fault detectionABC Conference, 23 Sept 08, Page 31 16
  • 9/8/2008 G650 Waste and Water System • Water System – Dual water systems – Two supply lines to each faucet and coffee makers – Each toilet is supplied by different water systems y y – Dual conformal tank design • 40 gallon capacity (2 x 20 gallon) – Manual fill capability, in-flight or on ground – Redundant heaters and relocation of supply lines and valves above floor to prevent freezing • Waste System – Designed to set a new industry standard for reliability – W t tank l Waste t k located to improve gravity assist t dt i it i t – Waste tubes routed with limited bends – Each toilet incorporates manual override flush handle Designed Using Cabin Essential™ Philosophy: No Single Failure can Render the System InoperableABC Conference, 23 Sept 08, Page 32ABC Conference, 23 Sept 08, Page 33 17
  • 9/8/2008 G650 Integration Test Facility (ITF) • Cockpit and cabin test rigs – Fully functional cockpit and cabin electronic mockups used to evaluate and validate design – Simulates complete aircraft systems and network architecture with full cabin wiring • PlaneView™ II avionics platform – Human factors testing on cockpit and avionics – Advanced software and hardware integration • Cabin systems mockup – Support Cabin Essential ™ design – All cabin equipment wired for test – Two seating areas cabin mockupABC Conference, 23 Sept 08, Page 34 G650 Advanced Flight Control Test Rig-“Iron Bird” Purpose built flight controls test rig Iron Bird functionality • Evaluate design & function prior to • Complete flight control flight test system • LRU system integration • Simulated cockpit displays p p y • Operational in late 2008 • Purpose built • Hydraulic System (pumps, aircraft plumbing) flight controls test rig • Landing gear • Evaluate • Electrical power distribution and and harnessing eliminate problems prior to flight test Benefits: • LRU system integration • Reduction of time and risk in development and implementation • Increased safety for flight test • Smoother entry into serviceABC Conference, 23 Sept 08, Page 35 18
  • 9/8/2008 Fuselage Barrel Development and Structural Testing • Validated new design and determinate assembly method for G650 fuselage – Full scale fuselage section – Tested and verified new assembly approach y pp • Successfully tested assembly beyond ultimate load (150% limit load) – Upbending: 265% limit load – Downbending: 180% limit load – Upbending + Torsion: 190% limit load – The structure returned to original shape • Pressure tested to 18 37 psi (proof test) 18.37 – Validated new window box structure Successfully Tested Beyond Required Design LevelsABC Conference, 23 Sept 08, Page 36ABC Conference, 23 Sept 08, Page 37 19
  • 9/8/2008 Designed for Manufacturing and Maintenance • CATIA V5 / ENOVIA 3D model-based design – Full interference-free integration of systems and structures • Design-as-built approach – E i Engineering and Manufacturing i dM f t i concurrent design • Delmia software for ergonomic analysis • More bonded panels and stringers – 60% Fastener count reduction – Improved skin quality • Maximized use of industry standard parts and common parts – Over 50% reduction of parts and part numbers from G550 • Increased use of monolithic machined components – Eliminates sheet metal assemblies – Reduces part count – Improves product quality and repeatabilityABC Conference, 23 Sept 08, Page 38 Manufacturing Automation and Tooling • Integrated Panel Assembly Cell (IPAC) – Assemble frames to panels – Replaces hand riveting • Precision Build Carts (PBC) – Carts are used in multiple fixtures – Maintains structure reference points throughout build process – No hoisting of barrels • CNC Profiler – Route and drill composite components Improved Quality and PrecisionABC Conference, 23 Sept 08, Page 39 20
  • 9/8/2008 Manufacturing Benefit Summary • Increased use of machined parts • Incorporation of Precision Assembly methods • Total part count reduction p of over 50% from G550 • Maximized use of industry standard parts • Maximized use of common parts • Reduced number of suppliers • Less Assembly Time • Better quality Note: estimated reductionsABC Conference, 23 Sept 08, Page 40 New Standard on Aircraft Availability Maintenance that Impact G550 G650 Goal Comments Aircraft Availability: Planned Maintenance 1% 1% No Change Scheduled Maintenance 7% 3% Scheduled maintenance at 600 hrs (MSG-3 Program) (20% longer than the G550) Reducing Tasks, Improved Access, Standardizing Parts Unscheduled Maintenance 8% 5% All LRUs Designed to be Removed / Replaced in 30 mins Improved Built in Test (BIT) Improved MTBFs from Suppliers Health & Trend Monitoring Total Estimated Availability 84% 91% Higher Aircraft Availability and Lower Maintenance CostsABC Conference, 23 Sept 08, Page 41 21
  • 9/8/2008 Research & Development ProgramsABC Conference, 23 Sept 08, Page 42 R & D Topics • Advanced Cockpit & Vision Systems • Advanced Flight Controls Program • Aircraft Health & Trend Monitoring • Obstacle Threat Warning Systems • Supersonic TechnologyABC Conference, 23 Sept 08, Page 43 22
  • 9/8/2008 Advanced Cockpit / Vision SystemsABC Conference, 23 Sept 08, Page 44 Evolution of Cockpit DisplaysABC Conference, 23 Sept 08, Page 45 23
  • 9/8/2008 EVS II and SV-PFD • Enhanced Vision System (EVS) – Gulfstream first to certify EVS: September 2001 – Over 400 Currently in Service – EVS II Certified: December 2007 • Synthetic Vision – Primary Flight Display (SV-PFD) – Gulfstream first CFR Part 25 OEM to certify SV Technology: December 2007 • Complimentary Systems Provide Improved Situational Awareness to Crew • Unprecedented in civil aviation EVS II and SV-PFD Standard in G450, G550, and G650ABC Conference, 23 Sept 08, Page 46 Enhanced Vision System (EVS) • IR Sensor in Nose • Image Displayed on HUD – Terrain – Airport – Runways / Taxiways – Ground Traffic • EVS sees at night and in reduced atmospheric visibility (smoke, dust, haze, and fog) • Allows pilots to use EVS at Decision Height to see runway in pp order to continue the approach to 100 ft • At 100ft, pilot must transition to natural vision to land the aircraft Improved Safety in Low Visibility and Night ConditionsABC Conference, 23 Sept 08, Page 47 24
  • 9/8/2008 SV-PFD • SV-PFD – Synthesized image of outside world on Primary Flight Display – Data from on board terrain database is processed with on-board aircraft position, altitude and heading to provide 3-D perspective view on the Primary Flight Display • Benefits: – En-route: Increases awareness of surrounding terrain – Departure and Approach: Increased awareness of major obstacles (>1 000 ft) b t l (>1,000 – Approach: Awareness of runway positionABC Conference, 23 Sept 08, Page 48 Gulfstream’s SV-PFD SV- PFD Displayed on Pilot’s Display UnitABC Conference, 23 Sept 08, Page 49 25
  • 9/8/2008 Airport Symbol Extended CenterlineABC Conference, 23 Sept 08, Page 50 A Breakthrough in Crew AwarenessABC Conference, 23 Sept 08, Page 51 26
  • 9/8/2008 Equivalent Visual OperationsABC Conference, 23 Sept 08, Page 52 FAA’s Plan for Next Generation Air Transportation SystemABC Conference, 23 Sept 08, Page 53 27
  • 9/8/2008 Gulfstream Equivalent Visual Operations Gulfstream’s EVS and SV-PFD systems will serve as the basis for Equivalent Visual Operations in the NextGen Airspace Fused Sensors Advanced SVS CockpitABC Conference, 23 Sept 08, Page 54 Advanced Flight Controls Program Faster, Smoother …ABC Conference, 23 Sept 08, Page 55 28
  • 9/8/2008 AFC Program Goals • Evaluate emerging technologies • Build supplier base • Develop internal expertise • Demonstrate technology in flight gy g • Determine benefits in capability, performance, reliability and costABC Conference, 23 Sept 08, Page 56 AFC Fly-by Wire Highlights • Fly by Wire Spoilers • Improved Stability at Higher Speed • Demonstrated Increased Roll Performance • Improved Ride Comfort • Fly by Wire Spoilers & First Flight – Spoiler Elevator September 26, 2006 • Electrical Backup Hydrostatic Actuator First Flight – Elevator (Hydraulic Motor) (EBHA) May 16, 2007 • Dissimilar Power Sources First Flight – Elevator (Electric Motor) – Hydraulic or Electric October 8, 2007ABC Conference, 23 Sept 08, Page 57 29
  • 9/8/2008 AFC Fly-by-Light • Fiber optic applications for Flight Control Systems – Assess Electrical-Optical Connector Technology – Assess Weight Savings and EMI Benefits – Assess Manufacturing Installation Concepts g p • “Fly by Light” Demonstration completed February 27, 2008 – FBL Optical Harness used to control Mid Spoilers Electrical Optical In-Line Signal ConcentratorABC Conference, 23 Sept 08, Page 58 AFC Fly-by-Wireless • Demonstration Completed 22 Jul 08 on Iron Bird Ground Test Rig – Digital bus communication used to control Tx/Rx box Mid Spoilers p • Demonstration on GV Test Aircraft Completed in August 2008 • Potential Wireless Applications: – Backup Flight Control System Electrical – Wireless Remote Sensors for Other Functions • Potential Aircraft Benefits: Optical – Added Redundancy & Safety – Weight & Cost Savings – Reduced Maintenance WirelessABC Conference, 23 Sept 08, Page 59 30
  • 9/8/2008 Aircraft Health & Trend MonitoringABC Conference, 23 Sept 08, Page 60 Objectives • Eliminate unscheduled maintenance • Significantly reduce scheduled maintenance – Drive to “on condition” • Reduce return to service time – Have part available when aircraft lands • Use hardware and software capability to include other valued customer services • System transparent to customer (no manual downloads) • E i access to data after incident / event Easier t d t ft i id t tABC Conference, 23 Sept 08, Page 61 31
  • 9/8/2008 Service / Support ConceptABC Conference, 23 Sept 08, Page 62 Status • Phase I (PlaneConnectTM) complete – More than 200 Gulfstream aircraft currently in program – Received over 16,000 maintenance message downlinks • Operators very impressed with system – Operators receive email from aircraft – All messages automatically monitored within 5 minutes of transmission – Operator base and Gulfstream alerted of potential AOG situation • Only business jet with this capability • Provides new insight into fleet operations – Identifies individual aircraft issues – Helps quantify fleet issuesABC Conference, 23 Sept 08, Page 63 32
  • 9/8/2008 Phase II Underway for G650 • Adding capability to capture more parameter data – Provide faster identification and resolution of issues during early service experience – Support investigation of intermittent issues – Reduce return to service time and increase first call resolution rate – Increase ability to determine overall fleet health • Integral part of G650 Entry Into Service maturity plan Will Set a New Standard for Gulfstream SupportABC Conference, 23 Sept 08, Page 64 Obstacle Threat Proximity Warning SystemABC Conference, 23 Sept 08, Page 65 33
  • 9/8/2008 Issue – Ground Damage • 47% of damage occurs while the aircraft is stationary – 18% from other aircraft (towing or taxi) – 14% from ground support equipment 22 HITS – 15% from ground vehicles 14% 9 HITS 38 HITS • 43% of damage occurs while 6% 24% towing • 10% of damage occurs during 39 HITS 25% taxi (winglet damage) 48 HITS 31% Damage Assessment (all models) Jan 2004 – July 2008ABC Conference, 23 Sept 08, Page 66 Proposed Warning System Development • Visual and audible obstacle cues to crew during taxi p operations • Visual and audible obstacle cues to ground crew during towing operations • Static Aircraft protectionABC Conference, 23 Sept 08, Page 67 34
  • 9/8/2008 Potential Radar Coverage • Sensor Locations: – Wing to Body Fairing – Tail ConeABC Conference, 23 Sept 08, Page 68 Potential Camera Coverage Cockpit Video DisplayABC Conference, 23 Sept 08, Page 69 35
  • 9/8/2008 Supersonic Technology ProgramABC Conference, 23 Sept 08, Page 70 QSJ ConceptABC Conference, 23 Sept 08, Page 71 36
  • 9/8/2008 Supersonic Technology Development Overall Objective: Conduct basic research into reducing the impact of sonic boom on people and the environment to enable regulatory change to allow supersonic flight overland, domestically and internationally 0.030 Wind Tunnel ΔPressure / Freestream Pressure 0.025 0.020 Overflow CFD 0.015 0.010 0.005 0.000 -0.005 -0.010 -0.015 -0.020 20 22 24 26 28 30 32 34 36 38ABC Conference, 23 Sept 08, Page 72 Primary Areas of Supersonic Research Propulsion Aerodynamics • Inlet Wind Tunnel Testing • NASA Wing-Body Wind Tunnel Tests • Nozzle Concepts • Refinement of Low Boom Geometry • University Studies – Propulsion Integration – Boom Signature Shaping Systems Integration Subsonic Supersonic • eXternal Vision System (XVS) Test Configuration • Primary Airframe Systems Advanced Materials Quiet Spike Flight Testing p g g • Composites Development • Structural/Mechanical Design Validation • Airframe Structural Concepts • Near-Field Acoustic Performance Acoustics • Low Boom Propagation Modeling Component Mockups • Structural & Human Response • Flight Deck • Psycho Acoustic Acceptance • Engine Mounts • Public Awareness and Education • Wing PivotABC Conference, 23 Sept 08, Page 73 37
  • 9/8/2008 Supersonic Acoustic Signature Simulator II A Unique Facility For Sonic Boom Acceptability TestingABC Conference, 23 Sept 08, Page 74 F-15 Quiet Spike Flight Test Objectives: • Validate Structural Performance • Validate Extension/Retraction System Performance • Validate Near-Field Aero-acoustic Performance Gulfstream Proprietary InformationABC Conference, 23 Sept 08, Page 75 38
  • 9/8/2008 Outdoor Signature Propagation St. Helena Island, Jun-Aug Atm. Avg.: 57.6 ASEL(dB) 0.5 Chiang Mai, Thailand, Jun-Aug Atm. Avg.: 66.4 ASEL(dB) Standard Atmosphere: 67.1 ASEL(dB) 0.4 • Quiet SpikeTM robust under 0.3 0.2 non-standard atmospheric Pressu (psf) 0.1 p profile ure 0 -0.1 -0.2 • Confluence of shocks 75 -0.3 remain distinct for off- -0.4 Standard design conditions -0.5 -0.02 0 0.02 0.04 0.06 0.08 0.1 Time (sec) 0.12 0.14 0.16 0.18 Atmosphere 70 Chiang Mai • Standard atmosphere design conservative for ASE (dB) 65 seasonal and geographic g g p EL variation 60 Mar-May Atm. Avg. 55 Jun-Aug Atm. Avg. St. Helena Island Sep-Nov Atm. Avg. Dec-Feb Atm. Avg. Standard Atmosphere 50 -80 -60 -40 -20 0 20 40 60 80 Latitude (deg)ABC Conference, 23 Sept 08, Page 76 Indoor Response to Sonic Booms • 2006/2007 NASA Low Boom Tests – Suggests indoor noise may be more annoying than outdoor noise – Research community moving Mean Log Annoyance Scores slowly on conclusions • Gulfstream taking Leadership Role – Clarifying challenges and priorities for research community – Defining road forward for regulatory change Measured & Scored Indoors Measured & Scored Outdoors – Engaging broader industry talent at national level C-Weighted Sound Exposure Level Sullivan, B. et. al. “ Human Response to Low Intensity Sonic Booms Heard Indoors and Outdoors”, 152nd Meeting of the Acoustical Society of America, Honolulu HI, 29 Nov, 2006ABC Conference, 23 Sept 08, Page 77 39
  • 9/8/2008 Supersonic Outlook • Continued Market and Industry Interest in the Development of Future Supersonic Concepts – Value of Travel Time Increasingly Important – Supersonic Overland Flight Required • Acoustic Signature Acceptability Critical to Future Design Efforts • Significant Progress Continues • Upcoming Focus Areas: – Future Technology Demonstration Program – Collaborative NASA / Industry Studies – Ground Boom Simulation and Acceptability Studies – Continued Support of Regulatory ProcessABC Conference, 23 Sept 08, Page 78ABC Conference, 23 Sept 08, Page 79 40