Tuning Chart - Steve Bourdow

You'll see multiple measurements of the same boat - we did this to understand the variability of different people measuring and differences in tension gauges. We attempted to normalize for differences in halyard shackle length as well.

Hull No	Rig Tension		Rake Measurements			Mast Step	Pole Ring Height	Measurer
	Uppers	Lowers	Jib halyard to deck	Jib halyard to bow	Main halyard to stern	Front of section to bow sheer
36	39	32	310.5	341.75	363.75	117	56	MZ
36	37	30	310.75	341.5	364.5	117	56	SB
84	40	24.5	308.25	340.5	363.5	117		MZ
84	37	22	312	344	363.5	117	60	SB
86	41	25.5	313	343	366.25	117	49	MZ
86	41	27	310.5	340.5	364.5	117		MC
88	35	23.5	308.25	337	364.5			CW
92	35	28.5	313.75	344.25		117.5	68	SB
104	33.5	24	309.5	338	363.5	117		CW
104	33.5	24	310.5	341.5	364	117	47	SB
81			311	340.5	365	117.25		PP
Average	37.2	26.1	310.73	341.73	364.3			PP

Notes:
- Loos gauges had a variation of up to 5
- SB and CW used the same gauge, generally ~3 lighter that gauge used by A and MZ
- Halyard were hoisted 100%, shackle height was supposed to be added to value
- Variation in height of jib hoist is significant, placing comparison of rake by jib halyard measurement in question
- Measurements in inches
- For SC boats: halyard to bow - halyard to deck ‘swing’ measurement should be 35.75" (4.25” deck height + 31.5”) [Ryan Georgianna]