designwind? % row % sail ? did you remember your treat from 2010? with the link to the row trimaran hallin:...
maybe it has half Cdi, but why did you think Cl vs AoA is different?
I agree with you! but is it nessesery that I agree with you? is it a democratic question? if 99% agree with whatever it could be wrong you...
sorry, yet I am not in the position to understand almeter´s or clements intention with his numbers.... but I understand now that we have to look...
mr. savitsky himself pointed his hydrodynamicsist-fingers of the full development of the stagnationsline in front of the wetted surface as one...
[IMG] with "3mm flexo-ply" a radius of 25mm is possible, (o you can easy reinvent a ply-weel for a toy) in first aproach the smalest radius...
for the creation of lift not only speed of the water is nessesery, the hull must deflekt the waterflow downwards but under the water is the next...
they do it like you, but upside down for cats http://www.mono-cat.de/bau.htm with water, vapor and endurance! the (2,5mm) ply is bendingt to a...
[IMG] there is no planning without a transom under the waterline your problem is not the transom, the problem is to bring the bow out of the...
thank you joakim, and my apologies for a smal correcture (units after they falls down from the tower of babylon.......) V/SQRT(LWL)=1.25 (V...
V / SQR (LWL)> = 5 the units are LwL[m]; V[kn] (I am wondering about the unit kn why not use the dimensionsless unit fn[(L) ........
what are the units for V and LWL?
your math formula than is: begin lift + bouyancy = boatwight ----> boatwight - buoyance = lift if bouyance < lift than boat is planing ! end...
glide on the entire time? ok than I used the wrong english word, I mean that your decelerationstest seems as if you start with planing (or...
[IMG] you use a interesting simple method for speed mesurement! I found this "Ship resistance versus ship speed for a slender mono-hull type"...
the water-tank experiment was suposed to start with a swimming objekt, regardless of the type of the objekt (glider, hovercraft, helicopter,...
hi, within the last 80 posts we discussed the idee of a boat planing in a pool on a scale, to ask how can we hold all vertical forces and weights...
and the fast not rigid-body swimmer in the water are quite clever in uses their benefits in this case
IMO this "fakt" is only correct for stady flow over straight surfaces not necessarily for flow with acceleration (speedup) thus unstady flow...
ok, but where is the discription of his reference hull? and exist a real world measurment of his power vs speed (or Fn)
