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Flight Performance, Stability, and Control PDR

Flight Performance, Stability, and Control PDR. Team Boiler Xpress Ryan beech Matt Basiletti Mike VanMeter Oneeb Bhutta. Flight Performance, Stability & Control PDR. Sizing of horizontal and vertical tails and control surfaces Location of c.g. and aerodynamic center

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Flight Performance, Stability, and Control PDR

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  1. Flight Performance, Stability, and Control PDR Team Boiler Xpress Ryan beech Matt Basiletti Mike VanMeter Oneeb Bhutta

  2. Flight Performance, Stability & Control PDR • Sizing of horizontal and vertical tails and control surfaces • Location of c.g. and aerodynamic center • Determination of static margin • Flight Performance

  3. Horizontal and Vertical Tail Sizing Vh - Horizontal tail volume coefficient = 0.50 Vv - Vertical tail volume coefficient = 0.044

  4. Control Surface Sizing • Based on historical data from Roskam Part II Tables 8.1 and 8.2. Homebuilts Single Engine 0.095 0.08 0.42 0.36 0.44 0.42

  5. Control Surface Sizing (cont.) • Sa = 1.35ft2 • Sr = 0.80ft2 • Se = 1.00ft2 • Max. surface deflection is 30 deg.

  6. Static Margin, Aerodynamic Center, and c.g. Xac = 0.46 Xcg = 0.35 SM = 0.11

  7. Tx + P Rx Servo Aircraft k Gyro Block Diagram – Roll Axis

  8. Dynamic Modeling = 0.80 = -0.15

  9. Dynamic Modeling (cont.)

  10. Take-off Performance • Stog = 56.7ft • Abort take-off after 120 feet of ground roll.

  11. Climb Performance • Max. Climb Angle, G G = 7.3 deg.

  12. Turning Performance • Maximum turn rate r = 50ft Vmax = 28ft/s Y= 0.28rad/s

  13. Dihedral Angle • Estimated by Raymer for a mid-wing aircraft to be 2 – 4 degrees.

  14. Remaining Objectives • X-plot sizing • Dihedral Angle • BUILD OUR PLANE!

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