V-22 Osprey Presentation - Finalrotorlab.tamu.edu/me489/lectures_FA11/Lobster Golf V-22...
Transcript of V-22 Osprey Presentation - Finalrotorlab.tamu.edu/me489/lectures_FA11/Lobster Golf V-22...
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V-22 OSPREY
Team: Lobster GolfJames Porter Nelson
Brian Bourgeois
Kyle Papsoy p
Billy Gifford
Seung Ri Park
Dan Gessnera Gess e
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OUTLINEOUTLINE
• History/Development (Porter)• Design (Brian)Design (Brian)• Mechanical Engineering Application (Big Dan)• Mishaps to Success (Seung Ri)• Mishaps to Success (Seung Ri)• Tactical Application (Billy)• Commercial Application (Kyle)• Commercial Application (Kyle)
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HISTORY/DEVELOPMENT
P t N lPorter Nelson
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HISTORY/DEVELOPMENTHISTORY/DEVELOPMENT• Osprey came about from the DoD’s Joint Service Osprey came about from the DoD s Joint Service
Vertical takeoff/landing experimental aircraft program that began in 1981.
• Program was in response to the failed Iran Hostage Rescue Mission of 1980.
• Bell Boeing was awarded the preliminary design contract in 1983.
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HISTORY/DEVELOPMENT CONTHISTORY/DEVELOPMENT CONT.
• Work was split evenly between the companies.
• Full scale development began in 1986 and the first prototypes flew in 1989prototypes flew in 1989.
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HISTORY/DEVELOPMENT CONT.• Much controversy has surrounded the V-22 Osprey.• The project is expected to cost $54+ billion once it is complete.
Cited by some as unsafe and impractical• Cited by some as unsafe and impractical.• Regardless, the govt. and military continue to back the program with full rate production being approved
in 2005.• Even though it is considered unsafe by some, the USMC says the aircraft is one of if not the safest
faircraft in their inventory.
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DESIGN FEATURESDESIGN FEATURESBrian Bourgeois
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DESIGN FEATURESDESIGN FEATURES• 1st production tiltrotor a/c
• Categorized by FAA as Powered Lift a/c• Categorized by FAA as Powered Lift a/c
• V/STOL
• Transition to fixed wing w/ rotating nacelles
• Driveshaft connects both engines in case of failure
• Tiltwing vs. Tiltrotor• Tiltrotor better for STOVL
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DESIGN FEATURES CONT.• Glass cockpit
• Triple redundancy in flight controls
• Nacelles can rotate from 0° to 97.5°
• Swash plate at rotor hubs• Controls rotorhead in helo mode
• Not capable of autorotation• Transition to fix wing mode
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MECHANICAL ENGINEERING APPLICATIONAPPLICATION
“Big” Dan Gessner
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POWERTRAINPOWERTRAIN• Turboprop
• Low speed efficiency
• Low exhaust thrust
• V-22 central gear box
• Turbofan
• High speed efficiency
• Turbojet
• High exhaust thrust• High exhaust thrust
• http://www.grc.nasa.gov/WWW/K-12/airplane/Animation/turbtyp/etpr.html
http://www.navyaircrew.com/blog/wp-content/uploads/2009/07/turboprop_operation-300x185.png
12/airplane/Animation/turbtyp/etpr.html
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MATERIALS AND STOWABILITY• Composites
M k 43%• Make up 43%
• Graphite fiber material in wings and fuselage
• Storage
Effi i t t bilit• Efficient stowability
• 90 seconds
http://bellhelicopter.com/MungoBlobs/212/888/V-22%2021010%20Guidebook.pdf
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MISHAP TO SUCCESSMISHAP TO SUCCESSSeung Ri Park
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INITIAL PROBLEMS INITIAL PROBLEMS • Four major crashesFour major crashes
• Mechanical failure (1992, 2000)• Vortex Ring State (2000, 2010)
• Crash in April 2000 was the worst • Crash in April 2000 was the worst killing 19 on board
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VORTEX RING STATEVORTEX RING STATE• Problem in helicopters and OspreyProblem in helicopters and Osprey• Rotors decent into the turbulent air
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VORTEX RING STATEVORTEX RING STATE• Flight Control SystemFlight Control System
• Uncommanded Roll• Center of gravity• Having two engines• Having two engines
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OTHER ISSUESOTHER ISSUES• High Downwash Velocityg y• Need both engines to hover• Engine failure during vertical landingEngine failure during vertical landing• Autorotation
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COST AND PERFORMANCECOST AND PERFORMANCESikorsky CV-22 Osprey Sikorsky CH-35E C-130
Cost ($ million) 67 40 60Cost ($ million) 67 40 60Internal Capacity (lb) 20,000 30,000 42,000External Capacity (lb) 15,000 32,000 -Cruise Speed (knots) 241 150 320
Range (mi) 1,011 621 2,360
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RECENT SUCCESSRECENT SUCCESS• Better warning systemg y
• Slower than 40 knots• Descend faster than 2 200 ft per minute• Descend faster than 2,200 ft per minute• Needed 2000 ft of altitude to recover without danger
M i d 100 000 fli ht h i Af h i t• Marines passed 100,000 flight hours in Afghanistan• Marines have given good reviews for the aircraft• Funding is still uncertain
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TACTICAL APPLICATIONSBilly Gifford
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TACTICAL APPLICATIONS• Advantage because of vertical g
insertion with speed• “Get in, get out”• Speed helps to avoid RPG’s• Compact storage so that it can fit g
on a carrier• Best for transportation• Can go pretty much anywhere• Can “sneak” behind enemy lines
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TACTICAL MISSIONS• April 13, 2007 – Marine Corps sent
10 V-22 aircrafts into Iraq for the Osprey’s first combat deployment.
• Osprey has provided support in Iraq, Osprey has provided support in Iraq, logging 2000 flight hours over 3 months.
• Used primarily in western Iraq for • Used primarily in western Iraq for routine cargo and troop movement
• Also used for riskier “aero-scout” i imissions
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TACTICAL MISSIONS• A Government Accountability Office study reported that in January 2009, the
Marines had 12 V-22’s operating in Iraq, completing all their missions.
• They concluded that the “deployments confirmed that the V-22’s enhanced speed and range enable personnel and internal cargo to be transported speed and range enable personnel and internal cargo to be transported faster and farther than is possible with the legacy helicopters it is replacing.”
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TACTICAL MISSIONS• December 2009 – Osprey saw its
first offensive combat mission.
• Osprey assisted in inserting 1,000 Marines and 150 Afghan troops into Marines and 150 Afghan troops into Helmand Province in southern Afghanistan to disrupt communication and supple lines of the Taliban.
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COMMERCIAL/ COMMERCIAL/ NON-COMBAT APPLICATIONSAPPLICATIONS
Kyle Papso
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HUMANITARIAN AID• 2010 Haiti Earthquake2010 Haiti Earthquake
• Operation Unified Response
• First Humanitarian Mission
• One day: Deployed three 10 man team, conducted surveillance, and transport suppliespp
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PRESIDENTIAL PROTECTION• V-22 Osprey is now part of HMX-1
(Marine One)
• Replace Sea-Stallion Heavy Lift Copters (1960’s)Copters (1960 s)
• Save time and security
• Landing concerns
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COMMERCIAL TILT ROTOR AIRCRAFTS
• AW609 (AgustaWestland)• Twice as fast twice the range Twice as fast, twice the range
of helicopters• Helipads at corporate offices, p p ,
isolated oil fields, small airports not designed for jets$• $8-10 million, 2016
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REFERENCES• http://www.boeing.com/ospreynews/2011/issue_02/index.html
• http://www.skybrary.aero/index.php/Autorotation
• http://www.defenselink.mil/multimedia/
http://www af mil/shared/media/photodb/photos/990101 F 5502B 002 jpg• http://www.af.mil/shared/media/photodb/photos/990101-F-5502B-002.jpg
• http://www.navy.mil/management/photodb/photos/050616-N-8154G-025.jpg
• http://www.air-and-space.com/20070928%20Edwards%20Osprey.htm
• http://flythebush.blogspot.com/2007/06/its-time-to-play-otterfloggers-name_20.htm
• http://en.wikipedia.org/wiki/V-22l