I was just curious, can anyone tell me the circumference of AHPC's superwing mast, used on the Taipan and the Blade, as measured according to the formula 16 rules? Is this the same mast that AHPC uses on the new Capricorn and the former Taipan 5.3?

Thanks,
Clay

From the top of my head :

0.34 mtr circumference

and that means that the mast area that needs to be included in the total mainsail area will be :

0.5 * 0.34 * (maximum luff length mainsail under downhaul tension) + actually area mainsail - (the part of the
sail that sits inside the mast groove ; "bolt rop etc")





It is NOT the same mast as used on the capricorn and Taipan 5.7 (Taipan 5.3 doesn't exist), however all boats DO use the same crossection shapes. Ergo the Capricorn and Taipan 5.7 use a mast section that is very similar to that of the Taipan F16 and Blade F16 albeit at a larger size. In simple terms Capricorn and Taipan 5.7 masts are beafed up Taipan 4.9/F16 masts

Wouter


Thanks,
Clay

Wouter,

Thanks for the info, and I apologize, yes, I meant the Taipan 5.7. So the Taipan 4.9 and the Blade use a smaller mast section, though the same teardrop shape. I believe the 5.7/Capricorn mast section measures 74mm wide by 158mm long, and if this is not the case with the 4.9/Blade than my next question would be, does anyone know those dimensions for the smaller 4.9/Blade mast cross section?

Clay

Clay,

No appologies necessary. But please bear with me when I set something else straight.

Taipans, Blades, Capricorns and A-cats don't have a teardrop shaped mast but a true wingsection. The last is alot more eliptical and has less width per given cord. Also the point of maximum width is further back. The behaviour difference between teardrop shape masts and wingmast is actually quite noticeable. One can not overstate the difference.

All other boats like Tornado's, F18's (except capricorn), and the nacra/hobie types all have teardrop shaped masts.

The Taipan 4.9 / Taipan F16 / Blade F16 boats use a 150 mm x 63 mm wing shaped mast.
The Taipan 5.7 uses (as you say) a 158 mm by 74 mm wing shaped mast
I think the capricorn has its own section but I think it to be close to the Taipan 5.7 dimensions.
The A-cats typically use something like 140 mm by 55 mm

The crossections of all are pretty much the same although the larger boats use a larger section to withstand the higher bending loads.

Comparison : From memory the Tiger / FX-one mast is a 145 mm by 90 mm section of teardrop shaped crossection (=circular front and a curved triangle at the rear)

I hope this helps.

Why are you looking for this info ?

Wouter