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System Definition Review. Miguel Alanis Aaron Mayne Tim Block Jason Olmstead Becca Dale Adeel Soyfoo Joseph Fallon Sarah Weise. Review of Market. Air charters, governments (surveying, mail), medical transport, or supplies delivery companies
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System Definition Review Miguel Alanis Aaron Mayne Tim Block Jason Olmstead Becca Dale Adeel Soyfoo Joseph Fallon Sarah Weise AAE 451 Senior Design Team 1
Review of Market • Air charters, governments (surveying, mail), medical transport, or supplies delivery companies • Operates in rural, developing area’s of the world such as Australia, South America, or even rural parts of Canada AAE 451 Senior Design Team 1
Design Requirements • Passengers: 12 (including crew) • Cruise Speed: 160 kts • Takeoff distance: 2000 ft • Range: 1200 nm • One-way full load • Weight: approx. 12,000 lbs • Cost: < $2.5 million • Alternate Fuel Source: Fischer-Tropes Kerosene and Bio - Kerosene AAE 451 Senior Design Team 1
Trade Studies • Largest Tradeoffs are Payload (passengers) or Range • Payload and/or Range affect GTOW the most Solid Lines are for Round trip range; Dotted Lines for One Way Range. AAE 451 Senior Design Team 1
Trade Studies • For the desired payload and range, there are only certain speeds the plane can travel Solid Lines are for Round trip range; Dotted Lines for One Way Range. AAE 451 Senior Design Team 1
Concept Generation and Selection AAE 451 Senior Design Team 1
Pugh’s Method 1 AAE 451 Senior Design Team 1
Pugh’s Method 2 AAE 451 Senior Design Team 1
Three Selections 1 3 2 AAE 451 Senior Design Team 1
Cabin Size 1 • Two rows of seats: • 22’10” long x 5’2-1/2” wide x 5’6” tall • Possible configurations: • 10 Passengers • 1-10’5” container and 4 seats • 1-5’2” container and 6 or 8 seats • 2-5’2” containers and 4 seats • 3-5’2” containers AAE 451 Senior Design Team 1
Cabin Size 2 • Three rows of seats (high Density): • 16’10” long x 5’10” wide x 5’6” tall • Possible configurations: • 9 Passengers • 12 Passengers • 1-10’5” container • 1-5’2” container and 6 seats • 2-5’2”containers AAE 451 Senior Design Team 1
Cabin Size 3 • Three rows of seats (low density): • 18’5” long x 5’10” wide x 5’6” tall • Possible Configurations: • 9 Passengers • 12 Passengers • 1-10’5” container • 1-5’2” container and 6 seats • 2-5’2” containers AAE 451 Senior Design Team 1
Fuel & Engine Choice • Engine Choice: • Turboprop • Fuel Choice: • FT Kerosene • Bio Kerosene • Current SFC values of Turboprops are reasonable for current design stage AAE 451 Senior Design Team 1
Performance Constraints AAE 451 Senior Design Team 1
Characteristics of Aircraft • GTOW: 12,100 lbs • S: 288 ft2 • b: 53.6 ft • P/W: 0.095 • W/S: 42 lbs/ft2 • dto: 2,000 ft • VCruise: 180 kts • Acquisition Cost: $2.327 million AAE 451 Senior Design Team 1
Current Design Max Range @ 2000 lbs: 1200 nm Cabin Size (LxHxW): 22.8’x5.5’x5.2’ GTOW: 12100 lbs S: 288 ft2 b: 53.6 ft Engine Power: 1275 shp Takeoff Distance: 2,000 ft Cost(2006): $2.35 million Cessna Grand Caravan Max Range @ 2000lbs: 850 nm Cabin Size (LxHxW): 16.7’x4.3’x5.2’ GTOW: 8,750 lbs S: 279.4 ft2 b: 52.1ft Engine Power: 675 shp Takeoff Distance: 2,420 ft Cost(2006): $2.5 million Comparison With Competing Aircraft AAE 451 Senior Design Team 1
Questions? AAE 451 Senior Design Team 1
Extra:Representative Design Mission • 0-1 Taxi & Takeoff • 1-2 Climb • 2-3 Cruse • 3-4 Descend • 4-5 Loiter • 6-7 Attempt to land • 7-8 Climb • 8-9 Divert • 9-10 Descend • 10-11 Loiter • 12-13 Land AAE 451 Senior Design Team 1
Wing Design • NACA 4412 section • Cruise angle of attack – 2.5 – 4.5 degrees • Cruise altitude – 10000 feet • Lift coefficient at cruise : 0.2 ~ 0.3 • Effective lifting area – 65% actual wing area • Average weight during cruise = .88*take-off weight • Take-off speed = 1.2*stall speed AAE 451 Senior Design Team 1