Real world comparison

Let's compare this simulator with real-world trim settings recommended by the Pro's like Mischa Heemskerk who also builds the [DNA F1x][dnaf1x] catamaran (yes, by now it's obvious, thats the boat I am sailing).

Here is Mischa's table:

true wind speed	0-6kn	7-11kn	12-15kn	16kn+	0-7kn	7-9kn	10-16kn	17kn+
course	upwind	upwind	upwind	upwind	downwind	downwind	downwind	downwind
mast rotation [°]	50	30	25	20	70	30	40	50
cunningham	mid	light	mid	pull	mid	loose	mid	pull
traveller [cm]	0	0	0	5-10	max (80?)	10	20	30

Simulator with guesstimated boat speed (need a polar!)

This table is a big guesstimate right now as I need a polar diagram and more accurate real-world measurements of boat-speed and VMG vs. the rest of the settings.

true wind speed	0-6kn	7-11kn	12-15kn	16kn+	0-7kn	7-9kn	10-16kn	17kn+
simulator	view	view	view	view	view	view	view	view
course	upwind	upwind	upwind flying	upwind foiling	downwind	downwind foiling	downwind foiling	downwind foiling
wind speed [kn]	4	9	14	20	5	8	14	20
heading [°]	45	45	45	50	135	130	140	150
boat speed [kn]	3	8	11	20	5	15	20	25
vmg [kn]	2.1	5.7	7.8	12.9	3.5	9.6	16.4	21.7
twist [°]	6	4	5	6	31	13.4	21	28
sail chord angle of attack [°]	20	20	20	15	15	15	15	15
apparent wind speed at mast top [kn]	6	16	23	36	4	12	12	13
mast rotation [°]	21 vs. 50	19 vs. 30	21 vs. 25	25 vs. 20	68 vs. 70	32 vs. 30	44 vs. 40	53 vs. 50
traveller [cm]	0	0	1 vs. 0	11 vs. 5-10	57 vs. max	6 vs. 10	16 vs. 20	24 vs. 30

When the table shows a vs. then it is simulator vs. Mischa's real-world-best-practice.

First conclusions: Calculations were based on 20° angle of apparent wind vs. sail chord. Adjusting angle of attack to 15° OR reducing the Hellman constant (for reduced wind-gradient) brings closer results. The result is close enough to get a rough feel, and wanting to get back on the water to try some trims in the real-world.