See if You can guess. Which is which .
I'll give a hint .my big mate in front is on a 7.4 me 6.9.

NOT sure you can tell that by just looking
would guess the one on the right flexed more and is the flex top
BUT sailor weight makes a BIG difference in that aspect
Davey White is a BIG heavyweight and am sure ALL his sails look well bent !!
.

^ my guess too.
Maybe you sorta can tell , This guy sails at our local and it definitely has a hard top mast and it does look a bit different to those two. He is a little fella in twenty plus knots

No you cant tell by looking at just one point in time
eg: the Dave White pic - could be mid gust or mid pump.

Look at all the sails rigged on the beach (then u have eliminated the wind or pumping or sailor weight) - and they look verrryyyy similar . That is because the sail is cut for the luff curve

Looking at pics is silly, see HotBodMon's one where he says it looks different? It is not taken front on - if it was you'd see more tip deflection.
The two side by side - that sail bends up and down wind, i bet if the pic was taken 0.1 sec later they'd be reversed
Anyway Tardy strange question so - why....?

Another hint.

As a sail maker I would say that unless you know what shape has been put where in the sail that its pretty much impossible to tell what sail has a constant bend in the luff curve. The chart from Tardy above will help but its not always accurate.

I would always use the right mast if possible or contact the company that made the sail.

Here's another diagram that messed me up ...very similar ..so I look at the bottom part of the mast .
i always thought NEILpryde where flex tops ..but not to sure .?

the wind was not gusting 15-17 knots ..
not really a strange question mark ,just observations .and wonder why in my early days i had dramas.

sometimes you have to make do with what your 've got or borrowed .

but I think most can tell now ..

i will give the answer ,but it was the question ...can you tell a constant curve mast buy looking at a sail.

i think yes.most of the time .

True but no .one has constant curve.in it.

Whos sailing the fastest there ,are you catching him or has he just passed you?

Lighter people probably won't have much twist off whatever type of mast..

pirrad said..
Whos sailing the fastest there ,are you catching him or has he just passed you?

I'm catching him ...on a down wind .run .he was a little over ..but he had bugger all down haul..

it was a sweet 3 cam tush...but rotted ...the luff pocket ... So thin .....it was a oldie.

i only just got him at the end a 7.4 definailty has it down wind over a 6.9.both 105 litre boards .

both 96 kgs but he's 6.2 I'm 5.10.

In case you didn't guess it .I'm sure you did ..
Neilpryde 460 progressive flex top in front sail
Ezzy constant curve on the tushingham rear .

good on yah for giving it a go ...

Madge said..
As a sail maker I would say that unless you know what shape has been put where in the sail that its pretty much impossible to tell what sail has a constant bend in the luff curve. The chart from Tardy above will help but its not always accurate.

I would always use the right mast if possible or contact the company that made the sail.

This! ^^

If the sails have the correct mast in them, they all look very similar, because they are designed to be that way. Then, the differences in appearance are more about the design of the sail than the mast.

sboardcrazy said..
Lighter people probably won't have much twist off whatever type of mast..

This one looks Brutal
Wonder if all our sails go like that after we land something ? ( Or try too )

^ I can tell just by looking , that mast has a 103 degree bend curve