fin_altod_117sqcm.txt

Codename		:	Altod
Implimentation	:	Dion Patelis
Note			:	Trying to get a more adaptive tip twist.
					Trying to get it to flag more.
File created	:	7th May 2020
Last print		:	Not printed as yet.

Material		:   PLA
Infill			:	Triangles
Density			:	20%
Print time		:	
Mass			:	
Filament		:	
Layer height	:	0.1
DeflectionLE	:	TBA
DeflectionTE	:	TBA
Recoil time		:	TBA

Implimentation
Area                  = 117.6 cm^2
Front FCS tab from LE = 5.75
Span                  = 110
These foil dimensions are based on the smaller
original Alto fin size of 86cm^2 and then scaled up 
by 1.171363745 to 117.6 cm^2.
(see calculations at the end of this text)
----------------
Base foil
FDFB  = 0 
Ch    = 115
Th    = 16%
ThFLE = 30%
TE    =	0.0086956% i.e. 1mm
LEDia = 6%
----------------
FDFB  = 10
LEOS  = -5
Ch    = 115
----------------
FDFB  = 60
LEOS  = -15
Ch    = 70%
----------------
FDFB  = 89.5
LEOS  = 28
Ch    = 50%
----------------
FDFB  = 94.5
LEOS  = 38.655
Ch    = 35%
----------------
Other
----------------

----------------
Legend:
All dimensions in mm unless specified.
FDFB  = Foil distance from Board 
LOES  = Leading edge offset from Base foils leading edge (+ve towards stern)
Ch    = Chord
Th    = Thickness
ThFLE = Thickest point from leading edge
TE    = Trailing Edge thickness
LERad = Leading Edge Radius

----------------
Calculatations:

To find the scale factor:-
a = Area of current fin.
b = Desired area.
c = scale factor.

sqrt(b) / sqrt(a) = c