Glider Design 1
It will fly!
Dimensions & Statistics
Aery Evaluation Number: 135
Fuselage Length: 30.00 cm
Wing Location: 13.00 cm
Stabilizer Location: 22.00 cm
Vertical Tail Location: 22.00 cm
Mass at Nose: 10.00 g
Center of Gravity Location: 16.98 cm
Neutral Point Location: 17.53 cm
ESTIMATED Mass: 51.09 g
Wing Loading 0.102 g/cm^2
Throwing Velocity: 20.00 km/hr
Flight Angle of Attack: 6.20 degrees
Stabilizer Incidence Angle: -0.89 degrees (positive upward)
ESTIMATED Stall Angle: 9.60 degrees
ESTIMATED Stall Velocity: 15.36 km/hr
ESTIMATED Glide Angle: 4.27 degrees (positive downward)
ESTIMATED CDo: 0.020
Wing Span: 50.00 cm
Planform Area 500.00 cm^2
Wing Root Chord: 10.00 cm
Wing Taper Ratio: 1.00
Wing Tip Chord: 10.00 cm
Wing Tip Sweep Distance: 0.00 cm
Wing Leading Edge Sweep Angle: 0.00 degrees
Wing Aspect Ratio: 5.00
CL,alpha: 4.27 1/radian
Stabilizer Span: 40.00 cm
Planform Area 256.00 cm^2
Stabilizer Root Chord: 8.00 cm
Stabilizer Taper Ratio: 0.60
Stabilizer Tip Chord: 4.80 cm
Stabilizer Tip Sweep Distance: 5.36 cm
Stabilizer Leading Edge Sweep Angle: 15.00 degrees
Stabilizer Aspect Ratio: 6.25
CL,alpha: 4.47 1/radian
Vertical Tail Height: 14.00 cm
Planform Area 95.20 cm^2
Vertical Tail Root Chord: 8.00 cm
Vertical Tail Taper Ratio: 0.70
Vertical Tail Tip Chord: 5.60 cm
Vertical Tail Tip Sweep Distance: 3.75 cm
Vertical Tail Leading Edge Sweep Angle: 15.00 degrees
Dimensions & Statistics
Aery Evaluation Number: 135
Fuselage Length: 30.00 cm
Wing Location: 13.00 cm
Stabilizer Location: 22.00 cm
Vertical Tail Location: 22.00 cm
Mass at Nose: 10.00 g
Center of Gravity Location: 16.98 cm
Neutral Point Location: 17.53 cm
ESTIMATED Mass: 51.09 g
Wing Loading 0.102 g/cm^2
Throwing Velocity: 20.00 km/hr
Flight Angle of Attack: 6.20 degrees
Stabilizer Incidence Angle: -0.89 degrees (positive upward)
ESTIMATED Stall Angle: 9.60 degrees
ESTIMATED Stall Velocity: 15.36 km/hr
ESTIMATED Glide Angle: 4.27 degrees (positive downward)
ESTIMATED CDo: 0.020
Wing Span: 50.00 cm
Planform Area 500.00 cm^2
Wing Root Chord: 10.00 cm
Wing Taper Ratio: 1.00
Wing Tip Chord: 10.00 cm
Wing Tip Sweep Distance: 0.00 cm
Wing Leading Edge Sweep Angle: 0.00 degrees
Wing Aspect Ratio: 5.00
CL,alpha: 4.27 1/radian
Stabilizer Span: 40.00 cm
Planform Area 256.00 cm^2
Stabilizer Root Chord: 8.00 cm
Stabilizer Taper Ratio: 0.60
Stabilizer Tip Chord: 4.80 cm
Stabilizer Tip Sweep Distance: 5.36 cm
Stabilizer Leading Edge Sweep Angle: 15.00 degrees
Stabilizer Aspect Ratio: 6.25
CL,alpha: 4.47 1/radian
Vertical Tail Height: 14.00 cm
Planform Area 95.20 cm^2
Vertical Tail Root Chord: 8.00 cm
Vertical Tail Taper Ratio: 0.70
Vertical Tail Tip Chord: 5.60 cm
Vertical Tail Tip Sweep Distance: 3.75 cm
Vertical Tail Leading Edge Sweep Angle: 15.00 degrees
Glider Design 2
It will fly!
The stabilizer may be larger than necessary. Dimensions & Statistics Aery Evaluation Number: 178 Fuselage Length: 30.00 cm Wing Location: 19.00 cm Stabilizer Location: 1.30 cm Vertical Tail Location: 22.00 cm Mass at Nose: 1.00 g Center of Gravity Location: 21.95 cm Neutral Point Location: 22.73 cm ESTIMATED Mass: 25.85 g Wing Loading 0.074 g/cm^2 Throwing Velocity: 20.00 km/hr Flight Angle of Attack: 4.39 degrees Stabilizer Incidence Angle: 4.04 degrees (positive upward) ESTIMATED Stall Angle: 17.45 degrees ESTIMATED Stall Velocity: 9.92 km/hr ESTIMATED Glide Angle: 3.59 degrees (positive downward) ESTIMATED CDo: 0.016 Wing Span: 50.00 cm Planform Area 350.00 cm^2 Wing Root Chord: 10.00 cm Wing Taper Ratio: 0.40 Wing Tip Chord: 4.00 cm Wing Tip Sweep Distance: 6.23 cm Wing Leading Edge Sweep Angle: 14.00 degrees Wing Aspect Ratio: 7.14 CL,alpha: 4.64 1/radian Stabilizer Span: 7.00 cm Planform Area 30.63 cm^2 Stabilizer Root Chord: 5.00 cm Stabilizer Taper Ratio: 0.75 Stabilizer Tip Chord: 3.75 cm Stabilizer Tip Sweep Distance: 1.27 cm Stabilizer Leading Edge Sweep Angle: 20.00 degrees Stabilizer Aspect Ratio: 1.60 CL,alpha: 2.27 1/radian Vertical Tail Height: 20.00 cm Planform Area 87.50 cm^2 Vertical Tail Root Chord: 5.00 cm Vertical Tail Taper Ratio: 0.75 Vertical Tail Tip Chord: 3.75 cm Vertical Tail Tip Sweep Distance: 11.55 cm Vertical Tail Leading Edge Sweep Angle: 30.00 degrees |
Final Glider Design
It will fly!
The vertical tail may be larger than necessary.
Dimensions & Statistics
Aery Evaluation Number: 122
Fuselage Length: 30.16 cm
Wing Location: 6.63 cm
Stabilizer Location: 22.27 cm
Vertical Tail Location: 23.64 cm
Mass at Nose: 4.00 g
Center of Gravity Location: 9.47 cm
Neutral Point Location: 9.99 cm
ESTIMATED Mass: 10.17 g
Wing Loading 0.080 g/cm^2
Throwing Velocity: 20.00 km/hr
Flight Angle of Attack: 8.63 degrees
Stabilizer Incidence Angle: -2.45 degrees (positive upward)
ESTIMATED Stall Angle: 14.04 degrees
ESTIMATED Stall Velocity: 15.03 km/hr
ESTIMATED Glide Angle: 6.21 degrees (positive downward)
ESTIMATED CDo: 0.020
Wing Span: 16.59 cm
Planform Area 126.40 cm^2
Wing Root Chord: 7.62 cm
Wing Taper Ratio: 1.00
Wing Tip Chord: 7.62 cm
Wing Tip Sweep Distance: 2.27 cm
Wing Leading Edge Sweep Angle: 15.31 degrees
Wing Aspect Ratio: 2.18
CL,alpha: 2.82 1/radian
Stabilizer Span: 5.56 cm
Planform Area 42.37 cm^2
Stabilizer Root Chord: 7.62 cm
Stabilizer Taper Ratio: 1.00
Stabilizer Tip Chord: 7.62 cm
Stabilizer Tip Sweep Distance: 0.47 cm
Stabilizer Leading Edge Sweep Angle: 9.53 degrees
Stabilizer Aspect Ratio: 0.73
CL,alpha: 1.18 1/radian
Vertical Tail Height: 2.00 cm
Planform Area 13.04 cm^2
Vertical Tail Root Chord: 6.52 cm
Vertical Tail Taper Ratio: 1.00
Vertical Tail Tip Chord: 6.52 cm
Vertical Tail Tip Sweep Distance: 0.00 cm
Vertical Tail Leading Edge Sweep Angle: 0.00 degrees
Final Glider Parts and Assembly
Final Glider Drawings
Built Glider
Flight test Results
Conclusion Questions
1. Was the glider as stable as you expected? Why or why not might this be so?
The glider was about as stable as I had expected, as it was built fairly balanced and had a decent AERY rating. However, the glider flying to the right often could have been due to the fact that it may have been due to placement of clay.
2. What techniques did you use to “trim” the glider for straight and gently descending flight?
I added clay (weight) to the nose of the glider as well as to the area near the wings based on how the glider flew.
3. How many test flights were required to get the glider trimmed for long distance, straight-line flight? Was this expected? Why or why not?
It took about 15 flights for the glider to get trimmed for such a flight, and this was fairly expected due to the fact that there were some errors with the glider.
The glider was about as stable as I had expected, as it was built fairly balanced and had a decent AERY rating. However, the glider flying to the right often could have been due to the fact that it may have been due to placement of clay.
2. What techniques did you use to “trim” the glider for straight and gently descending flight?
I added clay (weight) to the nose of the glider as well as to the area near the wings based on how the glider flew.
3. How many test flights were required to get the glider trimmed for long distance, straight-line flight? Was this expected? Why or why not?
It took about 15 flights for the glider to get trimmed for such a flight, and this was fairly expected due to the fact that there were some errors with the glider.