Copyright (c) 1995, Simo Salanne Stiffness and Weight of Sport Kite Spars 1-Jul-1995 Outer Spar Short Relative .... Scale Weight Diam Type Name Stiff. Weight Fact. g/m mm Rem ============================================================================= Reference spar: Glassforms K75 K75 1.00 1.00 1.00 33 8.7 S/L ----------------------------------------------------------------------------- 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 5.5 L AFC 1800 AFC1800 0.32 0.46 0.75 15 4.5 L AVIA Sport G-Force 2 Skinny GF2S 0.34 0.31 0.76 10 *7.8 G Clearwater 202-2 CW202-2 0.34 0.31 0.76 10 5.9 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 AVIA Sport 1800 A1800 0.42 0.47 0.08 16 4.6 G AFC 1960 AFC1960 0.45 0.49 0.82 16 5.0 L AVIA Sport 1880 A1880 0.47 0.50 0.83 17 4.8 G Beman Light 13 BeL13 0.47 0.48 0.83 16 5.0 M Beman Ultralite 14 BeULT14 0.47 0.36 0.83 12 5.5 M Vlieger-Op Exel RCF 5 RCF5 0.49 0.45 0.84 15 4.9 M SkyShark Response 12g (1995) Res12g 0.54 0.36 0.86 12 *8.0 S 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 AVIA Sport 1960 A1960 0.58 0.56 0.87 19 5.0 G Advantage 250/2 ADV/2 0.60 0.49 0.88 16 7.3 L Clearwater 250-2 CW250-2 0.60 0.41 0.88 14 7.1 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 SkySHark Response 15g (1995) Res15g 0.70 0.45 0.91 15 *8.0 S 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 AVIA Sport 2100 A2100 0.77 0.62 0.94 21 5.3 G AVIA Sport G-Force 2 UL 40" GF2UL40 0.77 0.41 0.94 14 *8.8 G AVIA Sport G-Force 2 Skinny 40" GF2S40 0.81 0.41 0.95 14 *7.8 G Beman Ultralite 16 BeULT16 0.82 0.42 0.95 14 6.3 M 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 AVIA Sport 2200 A2200 0.95 0.71 0.99 24 5.6 G Beman Strong 15 BeSTR15 0.96 0.69 0.99 23 5.9 S AVIA Sport G-Force 2 UL GF2UL 0.96 0.43 0.99 14 *8.8 G SkyShark IIIP (1994) IIIP 0.98 0.41 0.99 14 7.1 L AFC 2400 AFC2400 1.00 0.76 1.00 25 6.1 L Advantage 250/3 ADV/3 1.06 0.75 1.02 25 7.7 L Clearwater 250-3 CW250-3 1.06 0.57 1.02 19 6.9 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 AVIA Sport 2300 A2300 1.12 0.75 1.03 25 5.8 G Clearwater 315-2 CW315-2 1.17 0.51 1.04 17 8.8 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 AVIA Sport 2400 A2400 1.32 0.80 1.07 27 6.1 G AVIA Sport G-Force Std GF2Std 1.32 0.61 1.07 20 *8.8 G Clearwater 280-3 CW283 1.35 0.70 1.08 23 8.3 L Beman Pro-Competition 15 BePRO15 1.41 0.69 1.09 23 5.9 M Clearwater 250-4 CW254 1.42 0.85 1.09 29 7.9 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 9.1 L Glassforms Procomp CP-19-352 CP352 2.00 0.86 1.19 29 8.9 L 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 10.9 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 ----------------------------------------------------------------------------- S = Based on measurements by Simo Salanne L = Based on measurements by David Lord G = Based on measurments by Michael Graves M = Based on manufacturers data * = Larger diameter end