1. AE 2350 Design Project
David Eger
Peter Pociask
Pi - 42

2. Design Requirements Crew - 2 Engines - 2 Payload - 10,000 Lbs.
1500 Mile Radius with 45 min. reserve
Top speed - Mach 30,000 ft.
Take off and landing over a 35 foot obstacle Feet

3. Influences in the Design of the Pi -42
Design Influences
Influences in the Design of the Pi -42

4. SU -27
General Planform

5. F-15
Similarity to design requirements

6. F-16
Bubble Cockpit

7. YF -23
Ruddervators

8. Mig -29
Upper Air Intakes

9. Design Estimates From Homework 5
Original Estimates:
Engines:
2 x EJ200
Gross Weight: 40,000 lb
Payload: 10,000 lb
Wing Area: 320 sq. ft.
Aspect Ratio: 3.2
Top Speed: Mach 2.3
Cruise Speed: ~Mach 1.0
SFC: (dry), (wet)
We thought that we would model our plane after the F-16, which was similar in weight and aspect ratio to our original estimates.

10. A Problem of Range
However, our flying radius was a mere 750 knots. To increase our radius, we increased our weight to allow for more fuel.
While playing with weight, however, we found ourselves swapping formulas in an odd way.

11. Landing Distance
The landing distance was unable to be met without adversely effecting every other design parameter.
Attempts: up Wing Area, up Aspect Ratio, decrease Sweep

12. Why Not Use a High Aspect Ratio?
From a pure drag standpoint, having a high aspect ratio is good. The power needed to maintain cruise is minimal with a high aspect ratio; this is the reason why gliders use such narrow, long wings.

13. Why Not Use a High Aspect Ratio?

14. Solution to Landing Problem

15. Final Numbers Top Speed: Mach 2.0 Cruise Speed: ~Mach 0.8
Range: 3,500 Statute Miles
Takeoff Distance: 3700 ft.
Landing Distance (extrapolated from Fig 15.35): ft.
Gross Weight: 45,000 lb
Payload: 10,000 lb
Wing Area: 560 sq. ft.
Aspect Ratio: 3.5
Wing Span: 44 ft.
Plane Length: 63 ft.

16. Some images of our aircraft.
Pictures
Some images of our aircraft.

17. Pi-42
TOP VIEW

18. Pi-42
SIDE & FRONT VIEWS

19. Pi-42
3D Model

20. Pi-42 over Red Square

21. Credits DON’T PANIC Macromedia Extreme 3d and 3D Studio Max
Caffeine. Lots.
Jane’s All the Worlds Aircraft.
Douglas Adam’s comforting words:
DON’T PANIC
Special Thanks to Brian Dolan, Nick Ehret, and as always, our roommates for not killing us in our sleep.