Hi,
The triangle on as Blade is pretty small; I have a couple of measurements and this one is about as big as possible, for a Blade.
JIB
s1 (luff) 5,47
perp. H1 1,245
area triangle 3,51
s1 (luff) 1,245
perp. P1 0,014
area segment 0,01
s2 5,3
perp. P2 -0,033
area segment -0,12
s3 1,25
perp. P3 0,062
area segment 0,05
s4 0,04
perp. H4 -0,17
area triangle 0,00
---------
Area total: 3,45
Geert