1 / 20

Introductions

S-3B Airtanker Design Study and Fleet Analysis Presented to the Associated Aerial Firefighters Conference 18 January 2011. Introductions. Paul Wynns, Aircraft Systems Program Manager at Argon ST Argon ST Active and Aircraft Systems Group, a subsidiary of The Boeing Company. Objectives.

fawzi
Download Presentation

Introductions

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. S-3B Airtanker Design Study and Fleet AnalysisPresented to the Associated Aerial Firefighters Conference18 January 2011

  2. Introductions • Paul Wynns, Aircraft Systems Program Manager at Argon ST • Argon ST Active and Aircraft Systems Group, a subsidiary of The Boeing Company

  3. Objectives Familiarize airtanker community with the latest, most accurate engineering data on the S-3B aircraft Summarize Argon ST’s S-3B Airtanker Design Compare S-3B Airtanker performance with current airtanker fleet Describe available S-3B support organizations & services Gather feedback to refine Argon ST’s ongoing engineering & research activities in support of fire aviation Slide 3

  4. S-3 Viking - Overview

  5. General Arrangement Length: 53 ft. 4 in. Wingspan: 68 ft. In. Height: 22 ft. 9 in. Crew: 1-4 Basic Weight: 29,000 lb. (typical) Max TOGW: 52,500 lb. Max Speed: 450 KTS (0.79M) Maneuvering Limits: +3.5g / -2.0g Ceiling: 40,000 ft. Internal Fuel: 13,144 lb. (1,933 USG) External Fuel: 3,604 lb. (530 USG) Loiter Speed, 20,000 ft.: 210 KTS Approach Speed: 110 KTS Ferry Range: 3000+ nm Endurance: 6+ hr. Inflight refueling capable Design Margins (Before airframe mod): Unused Weight: 18,500 lbs. Unused Volume: 180 cu. ft. Airframe life remaining: 11,000 hrs. (avg.)

  6. S-3B Airtanker Design Summary • US Government presented with a 250+ page design document describing performance, IATB compliance, and fleet cost analysis • Over 45 Navy publications and 120 OEM drawings analyzed • Most extensive S-3B airtanker engineering completed to date • Sponsored by Air Force Research Labs, NASA: All data available at zero cost to USFS 2000+ gal. mixed retardant payload, 450 KIAS max speed, 125-135 KIAS drop speed, fully IATB compliant, coverage levels 0.5 to 8

  7. Suitability • Takeoff & Landing performance is suitable for most USFS firebases • Engine modifications & thrust reversers are not required • Upgrade to latest TF-34 engine variants would increase speed, payload, fuel efficiency • Engines & Airframe are proven in the fire aviation environment • Tens of thousands of flight hours in blowing sand, smoke, high temp. • Operating from forward-deployed desert airfields in hot climates • Analysis & US Navy Flight Test Data Predict Full IATB Compliance • S-3B airtanker will have lower drag count than existing US Navy flight test data Navy S-3B deployment to Al Asad, Iraq ’08 (VS-22) - 100% mission availability in desert environment

  8. Flying Qualities • Enroute • Cruise altitudes > 10k’ as desired • 450 KIAS dash speed if needed • FTA arrival and check-in • Excellent cockpit visibility • Loiter flap setting for orbiting • Approach and descent • Upper/lower wing spoilers • Up to 10,000 fpm controlled descent rate available, wings-level • Final approach • 2g, 45 deg. AOB available • DLC (spoilers) allow power-on descent • 135 KIAS drop speed • 105 KIAS stall speed • Exit • DLC automatically retracts spoilers • Full power immediately available • 3.5g available Cruise altitudes allow high airspeeds, fuel efficiency Cockpit visibility enhances SA in FTA Thrust, G available enhance exit safety Spoilers allow rapid decel, controlled rates of descent Flight controls designed for stable low altitude maneuvering

  9. Conclusions & Discussion • Advantages of the S-3B Airtanker: • Zero airframe, spares, GSE procurement cost • Leverages nearly $2.0M of existing engineering work • Access to $1.2B in airframes, spares, engines, and equipment • Highly capable, cost-effective airframe with over 15 yrs. life remaining • Airframes available now as a “gap fill” in advance of C-130J platforms • Speed and flexibility complements VLAT and LAT platforms • Support of AFRL Air Vehicles Integration Directorate and NASA Glenn Research Center; full cooperation of NAVAIR • Argon ST, a wholly-owned subsidiary of The Boeing Company: A leading engineering and modification provider backed by the world’s leading aerospace company.

  10. Contact Information About Argon ST Argon ST is a leading developer of command, control, communications, computers, combat, intelligence, surveillance, and reconnaissance (C5ISR) systems that support operational commanders by producing and delivering information in time to impact critical decisions. Argon ST’s C5ISR solutions are currently at work on land, at sea, and in the sky. We support a full range of military and strategic units, including surface, sub-surface, airborne, and land-based platforms that serve defense, homeland security, and international customer needs. In today’s fast-paced and highly complex threat environments, Argon ST is driven by an overarching goal to help the warfighter make sense of the technology and threats facing our forces—and provide the capability to beat them. About Aircraft Systems Argon ST - Aircraft Systems (Ventura, California) was created to address unique airborne special missions. Aircraft Systems provides innovative and cost effective aircraft installation, operational, and support solutions to U.S. and foreign governments engaged in airborne missions which require advanced detection, analysis, identification, targeting, tracking, response, and networked connectivity capabilities aboard various types of multi-mission aircraft. Our design and engineering capabilities span the range of applied and theoretical disciplines associated with aerospace structures, mechanical systems, electrical systems, motion control, RF engineering, systems integration, and FAA/DoD airworthiness certification compliance. Our facilities and prototype manufacturing capabilities also include structures, mechanical, and electrical fabrication, assembly, test, evaluation and airworthiness compliance certification. Paul Wynns Aircraft Systems Program Manager 6696 Mesa Ridge Road San Diego, CA 92121-2950 Office: (858) 623-9424 x411 Mobile: (619) 994-7606 Fax: (866) 529-3133 Paul.Wynns@ArgonST.com

  11. Backup Slides

  12. Supportability • Navy and NASA will continue to operate S-3B aircraft through 2015 • Engineering centers, depot, simulator facilities • All Navy, NASA S-3B facilities and services available to USFS or USFS contractors • Maintenance • Most recent S-3B Iraq deployment • 4 forward-deployed aircraft • 3 flights a day, 6 months • 100% mission completion; no sorties lost to maintenance aborts • Continues the trend of 27%+ cost savings vs. the P-3 airframe • Lowest cost carrier-based aircraft • Over 80% average mission availability in Afghanistan, Iraq wars • TF-34 engines shared by USAF A-10s, commercial RJs • Over $1.2B in Navy spare parts, airframes, equipment – zero cost to USFS • AMARC re-activation costs for S-3B are 50% those of P-3A/C Cleveland, OH: NASA Glenn Research Center Patuxent River, MD: S-3B Program Manager Point Mugu, CA: Naval Air Warfare Center Jacksonville, FL: Naval Air Depot

  13. Structural Service Life • Full Scale Fatigue Test (FSFT) analysis completed in 2004 by OEM and Navy engineering teams • Tested two full scale models to failure against a tactical aircraft flight profile: • Did not use transport aircraft load spectra (e.g. P-3, C-130, B747, DC-10) • Tactical, low-altitude profile used instead • Results • Exceeded previous life estimates by 100% • 23,000 hr. service life certification; average airframe age is 12,000 hrs. • No re-winging required, 15-20 yrs. airtanker life remaining • “It would be conservative to use these hours to determine inspections or life limits on individual aircraft” – OEM FSFT Failure Analysis Report

  14. Safety Record • 1.7 million flight hours, 21 years operational service • S-3B’s Class A mishap rate is lower than the P-3C’s in USN service • 1 Class A involving engine failure – caused by human factors • 1 Class A involving vertical fin failure – caused by human factors • 2 Class A due to inflight fire – caused by maintenance malpractice • 3 Class A due to analog autopilot system malfunction • 4 Class A due to CV environment • 19 Class A due to CFIT or other human factors • S-3B Class A Mishap Causal Factors • All Years • Source: PMA-290C NAVAIR, NAS Patuxent River, MD • Shore-based operational mishap rate: 1.06 per 100,000 flt. hrs. • Excluding carrier operations • System failure mishap rate: 0.118 per 100,000 flt. hrs. • Excludes CFIT and human factors • Excludes causal factors from legacy systems now upgraded/replaced

  15. Safety and Reliability Design Features • Dual redundant hydraulic flight control systems • Independent emergency hydraulic pump • Independent emergency flight control system (EFCS) • Triple redundant electrical power systems • Dual redundant electrical pitch trim systems, each with automatic fault detection • Dual redundant, 4-axis digital autopilot system • Excellent single-engine flight characteristics, including wave-off / go-around • Automatic elevator bias to relieve stick loads during flap transitions • Automatic thrust/pitch compensation to minimize pitch changes with power • Direct lift control for precise glideslope management • Dual redundant channel, digital yaw damper – including single-engine modes • Dual flight deck controls, dual instrument panels, cockpit optimized for pilot/copilot CRM

  16. Basing • Existing USFS bases recommended as candidates for S-3B airtanker: • Lancaster, CA (WJF: General Wm J Fox Airfield) • Fresno, CA (FAT: Fresno Yosemite) • Klamath Falls, OR (LMT: Kingsley Field) • Moses Lake, WA (MWH: Grant County Airport) • Missoula, MT (MSO: Missoula International) • Boise, ID (BOI: Boise Air Terminal) • Knoxville, TN (TYS: McGhee Tyson Field) • Lake City, FL (LCQ: Lake City Municipal) • Albuquerque, NM (ABQ: Albuquerque International) • Ft. Huachuca, AZ (FHU: Sierra Vista Municipal) • Williams, AZ (CMR: H.A. Clark Memorial Field) • McClellan, CA (MCC: Sacramento McClellan Air Park)* • Colorado Springs, CO (COS: Colorado Springs Airport)* • 15 minute and 30 minute response time ranges plotted for each candidate base • Other existing USFS bases plotted for reference • Highlights how the S-3B airtanker’s speed allows a flexible choice of basing while still maintaining superior response times • Map available for viewing online at: http://www.google.com/maps/ms?ie=UTF8&hl=en&oe=UTF8&msa=0&msid=107356115496716605077.0004630ddb8184bd55389 * Airtanker capable with Portable Mixing Plant support

  17. S-3B Airtanker Basing Kalispell, MT (GPI) Coeur d’Alene, ID (COE) Legend: Inner ring (orange): 15 min. response Missoula, MT (MSO) Moses Lake, WA (MWH) Outer ring (yellow): 30 min. response Helena, MT (HLN) Candidate S-3B airtanker base Troutdale, OR (TTD) Grangeville, ID (S80) La Grande, OR (LGD) • Mission profile: • Response times are takeoff to FTA arrival, one-way trip • All cruise altitudes >10k’ • Climb, cruise, and descent airpseeds, altitudes in accordance with FAA procedures, S-3B flight manual McCall, ID (MYL) Redmond, OR (RDM) West Yellowstone, MT (WYS) Boise, ID (BOI) Medford, OR (MFR) Klamath Falls, OR (LMT) Redding, CA (RDD) Chester, CA (O05)

  18. S-3B Airtanker Basing: South Klamath Falls, OR (LMT) Medford, OR (MFR) Legend: Redding, CA (RDD) Inner ring (orange): 15 min. response Chester, CA (O05) Jeffco, CO (BJC) Outer ring (yellow): 30 min. response Grass Valley (09CL) Minden, NV (MEV) Candidate S-3B airtanker base Colorado Springs, CO (COS) McClellan, CA (MCC) Stockton, CA (SCK) • Mission profile: • Response times are takeoff to FTA arrival, one-way trip • All cruise altitudes >10k’ • Climb, cruise, and descent airpseeds, altitudes in accordance with FAA procedures, S-3B flight manual Bishop, CA (BIH) Durango, CO (DRO) Fresno, CA (FAT) Porterville, CA (PTV) West Yellowstone, MT (WYS) Williams, AZ (CMR) Lancaster, CA (WJF) Winslow, AZ (INW) Albuquerque, NM (ABQ) Santa Barbara, CA (SBA) Prescott, AZ (PRC) Hemet, CA (HMT) Ramona, CA (RMN) Silver City, NM (SVC) Alamogordo, NM (ALM) Ft. Huachuca, AZ (FHU)

  19. S-3B Airtanker Basing: East Legend: Inner ring (orange): 15 min. response London, KY (LOZ) Outer ring (yellow): 30 min. response Knoxville, TN (TYS) Candidate S-3B airtanker base Asheville, NC (AVL) • Mission profile: • Response times are takeoff to FTA arrival, one-way trip • All cruise altitudes >10k’ • Climb, cruise, and descent airpseeds, altitudes in accordance with FAA procedures, S-3B flight manual Tallahassee, FL (TLH) Lake City, FL (LCQ)

  20. Summary of Airtanker Engineering Analysis • $1.0m in engineering analysis with Navy, NASA, and AFRL support • Surpasses and revises previous S-3B feasibility studies • Basic airframe has over 15-20 yrs. of life remaining; no re-winging required • Minimum payload is 1800 gal. • Maximum payload can exceed 2000 gal. • S-3B speed allows flexible basing • Thrust reversers and engine modifications are not required • S-3B’s turbofan engines are dependable and proven in smoke & dust prone environments • Three general airtanker mod options with 16 individual configurations are possible

More Related