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8.1 Spar comparison chart
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Subject: 8.1 Spar comparison chart
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From: Simo Salanne
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Date: 4 May 1994
For more information about the following table see article "Bending
spars with Coke can" in rec.kites archive.
Stiffness and Weight of Sport Kite Spars
Outer
Spar Short Relative .... Scale Weight Diam
Type Name Stiff. Weight Fact. g/m mm Rem
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Reference spar: Glassforms K75 K75 1.00 1.00 1.00 33 8.7 S/L
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AFC 1580 AFC1580 0.20 0.33 0.67 11 4.0 S
AFC 1700 AFC1700 0.26 0.37 0.71 12 4.3 L
Clearwater 187-2 CW187-2 0.29 0.28 0.73 9 5.? L
AFC 1800 AFC1800 0.32 0.46 0.75 15 4.5 L
Clearwater 202-2 CW202-2 0.34 0.31 0.76 10 5.? L
Beman Ultralite 13 BeULT13 0.38 0.36 0.78 12 5.0 M
AFC 1880 AFC1880 0.38 0.45 0.79 15 4.8 L
AFC 1960 AFC1960 0.45 0.49 0.82 16 5.0 L
Beman Ultralite 14 BeULT14 0.47 0.36 0.83 12 5.5 M
Beman Light 13 BeL13 0.47 0.48 0.83 16 5.0 M
Vlieger-Op Exel RCF 5 RCF5 0.49 0.45 0.84 15 4.9 M
Glassforms Prospar PS-15-278 PS278 0.57 0.63 0.87 21 7.1 M
AFC 2100 AFC2100 0.58 0.60 0.87 20 5.3 L
Clearwater C252 C252 0.60 0.41 0.88 14 7.? L
Advantage 250/2 ADV/2 0.60 0.49 0.88 16 7.3 L
Beman 5.5 mm (arrow shaft) Bem5.5 0.64 0.52 0.89 18 5.5 S
Beman Ultralite 15 BeULT15 0.64 0.39 0.90 13 5.9 M
Beman Light 14 BeL14 0.69 0.54 0.91 18 5.5 M
Beman Pro-Competition 14 BePRO14 0.69 0.54 0.91 18 5.5 M
AFC 2200 AFC2200 0.70 0.66 0.91 22 5.6 L
Vlieger-Op Exel RCF 6 Strong RCF6S 0.70 0.96 0.92 32 5.9 S
Beman Strong 14 BeSTR14 0.75 0.66 0.93 22 5.5 M
Beman Ultralite 16 BeULT16 0.82 0.42 0.95 14 6.3 M
Clearwater 282 CW282 0.84 0.70 0.96 23 7.1 L
Glassforms Procomp CP-15-278 CP278 0.84 0.54 0.96 18 7.1 M
AFC 2300 AFC2300 0.84 0.69 0.96 23 5.8 L
Vlieger-Op Exel RCF 6 RCF6 0.85 0.66 0.96 22 5.9 S
Beman Light 15 BeL15 0.90 0.63 0.97 21 5.9 M
Beman Strong 15 BeSTR15 0.96 0.69 0.99 23 5.9 S
SkyShark IIIP (1994) IIIP 1.00 0.41 1.00 14 7.1 L
AFC 2400 AFC2400 1.00 0.76 1.00 25 6.1 L
Clearwater C253 C253 1.06 0.57 1.02 19 7.0 L
Advantage 250/3 ADV/3 1.06 0.75 1.02 25 7.7 L
SkyShark VP (1994) VP 1.11 0.49 1.03 16 7.1 L
Glassforms Prospar PS-16-306 PS306 1.11 0.88 1.03 29 7.8 L
Clearwater 315-2 CW315-2 1.17 0.51 1.04 17 8.? L
Beman Strong 16 BeSTR16 1.22 0.77 1.05 26 6.3 M
Beman Light 16 BeL16 1.23 0.75 1.05 25 6.3 M
AFC 2540 AFC2540 1.26 0.88 1.06 30 6.5 L
Vlieger-Op Exel RCF 6 Ultra RCF6U 1.26 0.51 1.06 17 5.9 S
Clearwater 283 CW283 1.35 0.70 1.08 23 8.? L
Beman Pro-Competition 15 BePRO15 1.41 0.69 1.09 23 5.9 M
Clearwater 254 CW254 1.42 0.85 1.09 29 7.? L
Advantage 250/4 ADV/4 1.42 0.93 1.09 31 8.1 L
Glassforms Procomp CP-16-309 CP309 1.43 0.76 1.09 25 7.8 L
Glassforms Prospar PS-19-352 PS352 1.54 0.98 1.11 33 8.9 L
Vlieger-Op Exel RCF 7 RCF7 1.61 0.78 1.13 26 6.9 M
Clearwater 315-3 CW315-3 1.86 0.76 1.17 25 9.? L
Glassforms Procomp CP-19-352 CP352 2.00 0.86 1.19 29 8.9 L
Clearwater 385-2 CW385-2 2.03 0.58 1.19 20 9.? M
Phoenix/CarboFlex 8 CFlx8 2.10 0.93 1.20 31 8.0 S
SkyShark VIIP (1994) VIIP 2.11 0.80 1.21 27 8.4 L
Vlieger-Op Exel RCF 8 RCF8 2.17 0.96 1.21 32 7.9 S
Beman Pro-Competition 16 BePRO16 2.20 0.84 1.22 28 6.3 M
Vlieger-Op Exel RCF 8 Strong RCF8S 2.56 1.09 1.27 37 7.9 M
Vlieger-Op Exel RCF 9 RCF9 3.08 1.05 1.33 35 8.9 M
Clearwater 385-3 CW385-3 3.25 0.78 1.34 26 10.? L
Vlieger-Op Exel RCF 9 Strong RCF9S 3.79 1.26 1.40 42 8.9 M
Vlieger-Op Exel RCF 10 RCF10 4.73 1.20 1.47 40 9.9 M
Vlieger-Op Exel RCF 10 Strong RCF10S 5.42 1.53 1.53 51 9.9 M
Vlieger-Op Exel RCF 11 RCF11 5.75 1.35 1.55 45 10.0 M
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S = Based on measurements by Simo Salanne
L = Based on measurements by David Lord
M = Based on manufacturers data
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