Planing

i rem,ember more now... i think its when the boats stern overtakes the trough of the bow wave....according to frank bethwaite 

Originally posted by ham4sand i rem,ember more now... i think its when the boats stern overtakes the trough of the bow wave....according to frank bethwaite

Isn't that what I said?

Originally posted by Matt Jackson ...read an interesting definition in my Tasar manual years ago which was based on the position of the bow wave relative to the hull where... fully planing is when you overtake the bow wave...

As it was from the Tasar manual I think our sources are the same as well.

 

Edited by Matt Jackson

Yup,

Really much more complicated, but some dinghies have an obvious transition -

My old Firefly had a noticeable transition - usually needing a significant weight shift sternwards - between non-planing & "planing".

My Solo has a trasition - but this is less severe (differnet hull shape) - however there are at least 2 different stages - I reached stage 2 in (non-forum) gusts of Force 6 - mega amounts of spray!

On the other hand, the Merlin seems to lift (stage 1) almost imperceptibly.

What Dinghy is the OP using?

Colin

Originally posted by JimC Originally posted by ColPrice2002 What Dinghy is the OP using? A 4 Tonner I believe, but the context is a tuning guide, so the creator of the tuning guide had a speed range in mind where certain settings need to be changed, so all she needs to know is when that point is reached. A discussion on what *is* planing would be better placed in the development forum...

Exactly. It related to jib sheet tension. When to keep it
tight to aid pointing against when to let it off some to
sail free. It was suggested that when planing there may
be some advantage to sailing freer but a bit more reading
suggests that there may not be much of an advantage doing
this in a 4000.

Still, at least now I know when we're (perceived to be)
planing - other than when the daggerboard sings to us.

Edited by ellistine