System Definition Review AAE 451 Team V The Flying V Barn Owl Stephen Beirne Charlie Rush Miles Hatem Zheng Wang Chris Kester Brandon Wedde Jim Radtke Greg Wilson Outline Target Market Current Design Requirements Trade Studies Sizing Cost
Concept Development Current Design Alternative Fuel Concept Evaluation February 26, 2020 AAE 451 Team V 2 General Aviation Market Review Product 4 Seat Single Engine Piston Aircraft for Hobbyists, Training Fleets, and Fixed Base Operators Powered by an Alternate Fuel Customer Needs 100LL Replacement Current staple fuel for GA piston engines
Production uncertain after 2015 Provides opportunity to be first to market Petroleum fuel alternative for post peak oil February 26, 2020 AAE 451 Team V 3 Current Design Requirements 1500 ft takeoff distance to clear a 50 ft obstacle 600 lb payload with max fuel 150 kts max cruise speed 600 nm range 48x46 cabin height x width Estimated GTOW of 2780 lbs Estimated base price of ~$316,000 ($2006) February 26, 2020 AAE 451 Team V 4
Trade Studies All trade studies were done assuming by varying one of the following and keeping the remainder at the base value shown Range (600nmi) Cruise Speed (150 kts) L/D (12) Payload weight (450 lbs, +150 for pilot) Prop efficiency (0.9) bhpSFC (0.42) Empty weight fraction was based on a nonlinear regression curve fit of a database of similar aircraft Fuel fraction was calculated from a series of weight fractions for our design mission February 26, 2020
AAE 451 Team V 5 Trade Studies (cont.) February 26, 2020 AAE 451 Team V 6 Trade Studies (cont.) February 26, 2020 AAE 451 Team V 7 Trade Studies (cont.) February 26, 2020 AAE 451 Team V
8 Acquisition Cost Trade Study Three cost estimating relationships: GA Plane Library Modified DAPCA Airframe Weight Relationship. Average yields purchase price of ~$316,000.00 February 26, 2020 AAE 451 Team V 9 Acquisition Cost Purchase Price v DAPCA CER v AMPR CER $700,000.00
$600,000.00 Acquisition Cost $500,000.00 Purchase Price AMPR DAPCA*60% Expon. (AMPR) Expon. (DAPCA*60%) $400,000.00 $300,000.00 $200,000.00 $100,000.00 $1500 February 26, 2020 2000 2500 3000
GTOW (lbs) AAE 451 Team V 3500 4000 10 Concept Generation and selection Pughs method List criteria Brainstorm concepts Evaluate and iterate Criteria: Engine Power GTOW Safety Payload Airport Compatibility
Pizzazz Fuel Consumption Aesthetically AAE 451 Team V Pleasing February 26, 2020 Cruise Speed Price Stability 11 A Few Initial Concepts February 26, 2020 AAE 451 Team V 12 Concepts Generated after two
Pugh Iterations Landing Gear Wing Tail Cockpit Avionics February 26, 2020 Concept A Fixed Gear/Faring Concept B Tricycle Gear Tricycle Gear Low Wing Low Wing with Winglets Straight Wing
Straight Wing Conventional Tail Conventional Tail Analog Cockpit Glass Cockpit AAE 451 Team V Fixed Gear/Faring 13 Al frame composite Current Main Concept Three View February 26, 2020 AAE 451 Team V
14 Cabin Three View February 26, 2020 AAE 451 Team V 15 Fuel Choice SFC Numbers for selected Alternative Fuels SFC (lbs/hp*hour ) Fuel Diesel #2 0.37516 Bio-Diesel B100 0.42518
Ethanol 0.53829 Methanol 0.7067 Bio-Diesel is Liquid our fuel of choice!! Hydrogen February 26, 2020 AAE 451 Team V 0.1269 16 Information From Existing Diesel Engines Range of Brake Specific Fuel Consumption: 0.36 0.40 lbs/hp*hr Weights range from 185 lbs 350 lbs Power ranges from 135 hp 300 hp
Name Thielert Centurion 1.7 Thielert Centurion 4.0 DeltaHawk V-4 Diesel DeltaHawk V-4 Diesel Zoche ZO 01A Zoche ZO 03A Power (hp) Weight (lbs) Height (in) 135 295 25.04 310 606 26.04 160 327 20.71 200 350 20.71 150 185 21.80 70 121
15.90 February 26, 2020 AAE 451 Team V Width (in) Length (in) BSFC (lbs/hp*hour) 31.34 31.69 0.36 30.30 35.40 0.36 23.42 32.23 0.40 23.42 32.23 0.38 21.80 28.50 0.37 21.80 28.50 0.38
17 Relationship between Engine Weight and Power y = 0.4563x + 27.501 Power vs. Weight R2 = 0.912 350 300 Power (hp) 250 200 150 100 50 0 100 150 200
250 300 350 400 450 500 550 600 650 Weight (lbs) February 26, 2020 AAE 451 Team V 18
Design Space Determination Constraint Diagram 0.15 Take-Off Cruise Landing Climb 0.14 0.13 Design Space Power to Weight Ratio, P SL/ W TO 0.12 0.11 0.1 0.09 Design Point 0.08 0.07 0.06
0.05 0.04 0.03 0.02 0.01 0 0 February 26, 2020 5 10 15 AAE 20 451 25 35 Team30 V Wing Loading, W TO/S 40 45 50
19 Current Design GTOW (lbs) 2780 LOA (ft) 26 Wingspan (ft) 36 Swing (ft^2) 115 W/S (lb/ft^2) 24.1 P/W (ft/s)
Bio-diesel powered 0.0706 sTO (ft) 740 Low tapered wing with winglets Vcruise (kts) 150 Conventional tail 5 deg tail upsweep horsepower ~200 Acquisition Cost $316,000
February 26, 2020 AAE 451 Team V 20 Concept Evaluation Design Requirements T/O Distance <1500 Concept Concept Cirrus SR A B 22 + + - 600 lb Payload +
+ + 150 kts cruise speed + + + 600 nm range + + + 48x46 cabin dim. +
+ + + + February 26, 2020 <2800 lb GTOW AAE 451 Team V + 21 Synopsis Four-Seat Single-Engine Piston Prop GA Aircraft Bio-Diesel Fueled Low Wing (Possibly With Winglets) Conventional Tail Fixed Tricycle Gear
February 26, 2020 AAE 451 Team V 22 This Concludes Our System Definition Review AAE 451 Team V The Flying V Barn Owl Stephen Beirne Charlie Rush Miles Hatem Zheng Wang Chris Kester Brandon Wedde Jim Radtke Greg Wilson slide left intentionally blank February 26, 2020
AAE 451 Team V 24 3 View of Diesel Engine February 26, 2020 AAE 451 Team V 25 Diesel Cycle vs. Otto Cycle Engines February 26, 2020 AAE 451 Team V 26
