BsSmith
Well-Known Member
- Joined
- Jan 18, 2009
- Messages
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Here is the "plans" for my recent scratch build. The body tubes are laminated BT70 tubes. I could not figure out how to export fin templates, so you will have to use the measurements.
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Sustainer parts
Nose cone Apogee - 19470 - PNC-70A, Material: Polystyrene PS
Nose shape: Hollow Ogive, Len: 10.7480 In., Dia: 2.2165 In. Wall thickness: 0.0850 In. Body insert: OD: 2.0906 In., Len: 2.2992 In.
CG: 2.5748 In. , Mass: 0.8501 Oz. Radius of gyration: 0.0870233 (m) , 8.70233 (cm) Moment of inertia: 0.00018251 (kgm^2) , 1825.1 (gcm^2)
Body tube Estes - Estes - BT-70, Material: Fiberglass
OD: 2.2200 In. , ID: 2.1800 In. , Len: 10.0000 In.
CG: 5.0000 In. , Mass: 0.1024 Oz. Radius of gyration: 0.0760242 (m) , 7.60242 (cm) Moment of inertia: 1.67772e-05 (kgm^2) , 167.772 (gcm^2)
Tube coupler Estes - Estes - JT-70A, Material: Paper
Tube couplerOD: 2.1800 In., Hole #1: : 50.8000 In. Len: 4.0000 In. Location: 7.8750 In. From the front of Body tube
CG: 2.0000 In. , Mass: 1.5320 Oz. Radius of gyration: 0.0348692 (m) , 3.48692 (cm) Moment of inertia: 5.28084e-05 (kgm^2) , 528.084 (gcm^2)
Body tube Estes - Estes - BT-70, Material: Fiberglass
OD: 2.2200 In. , ID: 2.1800 In. , Len: 18.0000 In.
CG: 9.0000 In. , Mass: 0.1843 Oz. Radius of gyration: 0.133603 (m) , 13.3603 (cm) Moment of inertia: 9.32655e-05 (kgm^2) , 932.655 (gcm^2)
Tube coupler Estes - Estes - JT-70A, Material: Paper
Tube couplerOD: 2.1800 In., Hole #1: : 53.0860 In. Len: 4.0000 In. Location: 15.8750 In. From the front of Body tube
CG: 2.0000 In. , Mass: 0.7825 Oz. Radius of gyration: 0.0350819 (m) , 3.50819 (cm) Moment of inertia: 2.73027e-05 (kgm^2) , 273.027 (gcm^2)
Body tube Giant Leap - B-1.145 - 29mm BT, Material: Kraft phenolic
OD: 1.2650 In. , ID: 1.1450 In. , Len: 18.5000 In. Location: 14.5000 In. From the front of Body tube
CG: 9.2500 In. , Mass: 2.3286 Oz. Radius of gyration: 0.136234 (m) , 13.6234 (cm) Moment of inertia: 0.00122522 (kgm^2) , 12252.2 (gcm^2)
Mass object Giant Leap - SLIM29 - Slimline 29mm Retainer, Material:
CG: 0.0000 In. , Mass: 0.5000 Oz. Radius of gyration: 0 (m) , 0 (cm) Moment of inertia: 0 (kgm^2) , 0 (gcm^2)
Centering ring Giant Leap - CR-2.56/29 - CR 2.56/29mm, Material: Birch
Centering ringOD: 2.1800 In., ID: 1.1417 In., Len: 0.1500 In. Location: 22.7500 In. From the front of Body tube
CG: 0.0750 In. , Mass: 0.2203 Oz. Radius of gyration: 0.0156829 (m) , 1.56829 (cm) Moment of inertia: 1.53624e-06 (kgm^2) , 15.3624 (gcm^2)
Centering ring Giant Leap - CR-2.56/29 - CR 2.56/29mm, Material: Birch
Centering ringOD: 2.1800 In., ID: 1.1417 In., Len: 0.1500 In. Location: 15.0000 In. From the front of Body tube
CG: 0.0750 In. , Mass: 0.2203 Oz. Radius of gyration: 0.0156829 (m) , 1.56829 (cm) Moment of inertia: 1.53624e-06 (kgm^2) , 15.3624 (gcm^2)
Custom 28" parachute
1 parachute, Shape: 6 sided Dia: 28 In., Spill hole: 0.0000 In.
CG: 0.0000 In. , Mass: 8.1000 Oz. Radius of gyration: 0.0454176 (m) , 4.54176 (cm) Moment of inertia: 0.000473673 (kgm^2) , 4736.73 (gcm^2)
Body tube Estes - Estes - BT-70, Material: Fiberglass
OD: 2.2200 In. , ID: 2.1800 In. , Len: 8.0000 In.
CG: 4.0000 In. , Mass: 0.0819 Oz. Radius of gyration: 0.0619664 (m) , 6.19664 (cm) Moment of inertia: 8.91699e-06 (kgm^2) , 89.1699 (gcm^2)
Centering ring Giant Leap - CR-2.56/29 - CR 2.56/29mm, Material: Birch
Centering ringOD: 2.1800 In., ID: 1.1417 In., Len: 0.1500 In. Location: 6.7500 In. From the front of Body tube
CG: 0.0750 In. , Mass: 0.2203 Oz. Radius of gyration: 0.0156829 (m) , 1.56829 (cm) Moment of inertia: 1.53624e-06 (kgm^2) , 15.3624 (gcm^2)
Fin set custom - Laminated plywood
Planform: trapezoidal, Root chord: 5.8750 In., Tip chord: 2.6250 In., Semi-span: 3.2500 In., Sweep: 0.3488 In., Mid-Chord: 3.4916 In. Misc: Location: 7.2500 In. From the front of Body tube Thickness: 0.0625 In. Profile: square
CG: 2.4925 In. , Mass: 3.4489 Oz. Radius of gyration: 0.0464015 (m) , 4.64015 (cm) Moment of inertia: 0.00021052 (kgm^2) , 2105.2 (gcm^2)
Fin set custom - Laminated plywood
Planform: trapezoidal, Root chord: 6.6250 In., Tip chord: 2.0000 In., Semi-span: 0.6250 In., Sweep: 3.7500 In., Mid-Chord: 1.5675 In. Misc: Location: 0.0000 In. From the front of Body tube Thickness: 0.0625 In. Profile: square
CG: 3.9028 In. , Mass: 0.5566 Oz. Radius of gyration: 0.0375076 (m) , 3.75076 (cm) Moment of inertia: 2.21972e-05 (kgm^2) , 221.972 (gcm^2)
Transition Apogee - PNC 70A nose cone
Solid transition: Fwd. Dia: 2.2000 In., Len: 6.8750 In., Rear Dia: 1.2598 In. Font body insert: Len: 1.0000 In., OD: 2.1500 In., Rear body insert: Len: 0.0000 In., OD: 0.0000 In.,
CG: 3.3219 In. , Mass: 4.9119 Oz. Radius of gyration: 0.0576253 (m) , 5.76253 (cm) Moment of inertia: 0.000462406 (kgm^2) , 4624.06 (gcm^2)
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If you do build it, I expect a drag race!
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Sustainer parts
Nose cone Apogee - 19470 - PNC-70A, Material: Polystyrene PS
Nose shape: Hollow Ogive, Len: 10.7480 In., Dia: 2.2165 In. Wall thickness: 0.0850 In. Body insert: OD: 2.0906 In., Len: 2.2992 In.
CG: 2.5748 In. , Mass: 0.8501 Oz. Radius of gyration: 0.0870233 (m) , 8.70233 (cm) Moment of inertia: 0.00018251 (kgm^2) , 1825.1 (gcm^2)
Body tube Estes - Estes - BT-70, Material: Fiberglass
OD: 2.2200 In. , ID: 2.1800 In. , Len: 10.0000 In.
CG: 5.0000 In. , Mass: 0.1024 Oz. Radius of gyration: 0.0760242 (m) , 7.60242 (cm) Moment of inertia: 1.67772e-05 (kgm^2) , 167.772 (gcm^2)
Tube coupler Estes - Estes - JT-70A, Material: Paper
Tube couplerOD: 2.1800 In., Hole #1: : 50.8000 In. Len: 4.0000 In. Location: 7.8750 In. From the front of Body tube
CG: 2.0000 In. , Mass: 1.5320 Oz. Radius of gyration: 0.0348692 (m) , 3.48692 (cm) Moment of inertia: 5.28084e-05 (kgm^2) , 528.084 (gcm^2)
Body tube Estes - Estes - BT-70, Material: Fiberglass
OD: 2.2200 In. , ID: 2.1800 In. , Len: 18.0000 In.
CG: 9.0000 In. , Mass: 0.1843 Oz. Radius of gyration: 0.133603 (m) , 13.3603 (cm) Moment of inertia: 9.32655e-05 (kgm^2) , 932.655 (gcm^2)
Tube coupler Estes - Estes - JT-70A, Material: Paper
Tube couplerOD: 2.1800 In., Hole #1: : 53.0860 In. Len: 4.0000 In. Location: 15.8750 In. From the front of Body tube
CG: 2.0000 In. , Mass: 0.7825 Oz. Radius of gyration: 0.0350819 (m) , 3.50819 (cm) Moment of inertia: 2.73027e-05 (kgm^2) , 273.027 (gcm^2)
Body tube Giant Leap - B-1.145 - 29mm BT, Material: Kraft phenolic
OD: 1.2650 In. , ID: 1.1450 In. , Len: 18.5000 In. Location: 14.5000 In. From the front of Body tube
CG: 9.2500 In. , Mass: 2.3286 Oz. Radius of gyration: 0.136234 (m) , 13.6234 (cm) Moment of inertia: 0.00122522 (kgm^2) , 12252.2 (gcm^2)
Mass object Giant Leap - SLIM29 - Slimline 29mm Retainer, Material:
CG: 0.0000 In. , Mass: 0.5000 Oz. Radius of gyration: 0 (m) , 0 (cm) Moment of inertia: 0 (kgm^2) , 0 (gcm^2)
Centering ring Giant Leap - CR-2.56/29 - CR 2.56/29mm, Material: Birch
Centering ringOD: 2.1800 In., ID: 1.1417 In., Len: 0.1500 In. Location: 22.7500 In. From the front of Body tube
CG: 0.0750 In. , Mass: 0.2203 Oz. Radius of gyration: 0.0156829 (m) , 1.56829 (cm) Moment of inertia: 1.53624e-06 (kgm^2) , 15.3624 (gcm^2)
Centering ring Giant Leap - CR-2.56/29 - CR 2.56/29mm, Material: Birch
Centering ringOD: 2.1800 In., ID: 1.1417 In., Len: 0.1500 In. Location: 15.0000 In. From the front of Body tube
CG: 0.0750 In. , Mass: 0.2203 Oz. Radius of gyration: 0.0156829 (m) , 1.56829 (cm) Moment of inertia: 1.53624e-06 (kgm^2) , 15.3624 (gcm^2)
Custom 28" parachute
1 parachute, Shape: 6 sided Dia: 28 In., Spill hole: 0.0000 In.
CG: 0.0000 In. , Mass: 8.1000 Oz. Radius of gyration: 0.0454176 (m) , 4.54176 (cm) Moment of inertia: 0.000473673 (kgm^2) , 4736.73 (gcm^2)
Body tube Estes - Estes - BT-70, Material: Fiberglass
OD: 2.2200 In. , ID: 2.1800 In. , Len: 8.0000 In.
CG: 4.0000 In. , Mass: 0.0819 Oz. Radius of gyration: 0.0619664 (m) , 6.19664 (cm) Moment of inertia: 8.91699e-06 (kgm^2) , 89.1699 (gcm^2)
Centering ring Giant Leap - CR-2.56/29 - CR 2.56/29mm, Material: Birch
Centering ringOD: 2.1800 In., ID: 1.1417 In., Len: 0.1500 In. Location: 6.7500 In. From the front of Body tube
CG: 0.0750 In. , Mass: 0.2203 Oz. Radius of gyration: 0.0156829 (m) , 1.56829 (cm) Moment of inertia: 1.53624e-06 (kgm^2) , 15.3624 (gcm^2)
Fin set custom - Laminated plywood
Planform: trapezoidal, Root chord: 5.8750 In., Tip chord: 2.6250 In., Semi-span: 3.2500 In., Sweep: 0.3488 In., Mid-Chord: 3.4916 In. Misc: Location: 7.2500 In. From the front of Body tube Thickness: 0.0625 In. Profile: square
CG: 2.4925 In. , Mass: 3.4489 Oz. Radius of gyration: 0.0464015 (m) , 4.64015 (cm) Moment of inertia: 0.00021052 (kgm^2) , 2105.2 (gcm^2)
Fin set custom - Laminated plywood
Planform: trapezoidal, Root chord: 6.6250 In., Tip chord: 2.0000 In., Semi-span: 0.6250 In., Sweep: 3.7500 In., Mid-Chord: 1.5675 In. Misc: Location: 0.0000 In. From the front of Body tube Thickness: 0.0625 In. Profile: square
CG: 3.9028 In. , Mass: 0.5566 Oz. Radius of gyration: 0.0375076 (m) , 3.75076 (cm) Moment of inertia: 2.21972e-05 (kgm^2) , 221.972 (gcm^2)
Transition Apogee - PNC 70A nose cone
Solid transition: Fwd. Dia: 2.2000 In., Len: 6.8750 In., Rear Dia: 1.2598 In. Font body insert: Len: 1.0000 In., OD: 2.1500 In., Rear body insert: Len: 0.0000 In., OD: 0.0000 In.,
CG: 3.3219 In. , Mass: 4.9119 Oz. Radius of gyration: 0.0576253 (m) , 5.76253 (cm) Moment of inertia: 0.000462406 (kgm^2) , 4624.06 (gcm^2)
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If you do build it, I expect a drag race!