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Hull Gauge
Recomputed 5 Nov 2026, 03:30 UTC

Morgan Out Island 41vsTartan 37

Morgan against Tartan · used asking prices, listed in the US

At the same age, the Tartan 37 and the Morgan Out Island 41 show no settled difference: pooled across the shared build years the Tartan 37 asks 15% less than the Morgan Out Island 41, but each year's Gauge Estimate points the other way. The Morgan Out Island 41 holds its value a little better (4.6% a year of age, against 5.1%).

same age · 7 shared build years · 9 and 24 boats in them · Indicative · in today’s prices · asking, not sold

02

Year by year

Each build year's Gauge Estimate, for the 7 years both have boats in. Pooled across those years (9 and 24 boats), the Tartan 37 asks 15% less than the Morgan Out Island 41. Taken together, the estimates below point another way: each draws on boats built up to three years either side, while the same-age figure pairs boats of exactly the same build year, and with this few boats the two can differ. Read the same-age figure as Indicative, not settled.

Morgan Out Island 41Year builtTartan 37
£29,000 (9)
1982+22%
£35,500 (22)
£29,000 (10)
1981level
£29,000 (21)
£29,000 (11)
1980−5.2%
£29,000 (9)
1979−5.2%
—
1977—
£24,500 (17)
£26,000 (8)
1976−1.9%
£25,500 (12)
Gauge Estimate by year built · comparable boats in brackets, built within three years either side · — below eight comparable boats; a year where neither has eight is left out · the gap is the right-hand model against the left
03

What your budget buys

£12k£36k£59k
Morgan Out Island 41
1983
newest build year whose Gauge Estimate is at or under £32,000 (£28,500, 8 comparable boats)
1
the one boat listed now asks £32,000 or less
Tartan 37
1981
newest build year whose Gauge Estimate is at or under £32,000 (£29,000, 21 comparable boats)
2
of the 5 boats listed now ask £32,000 or less

At £32,000 your money buys 2 years newer in the Morgan Out Island 41: a 1983 against a 1981.

04

A year of ownership

Each at its Gauge Value, on a South Coast marina berth, 44 engine hours a year (the median of 103 UK-listed sailing boats that report hours). An estimate in pounds from published rates, not a quote.

Morgan Out Island 41MeasureTartan 37
£1,400
Depreciation (not in total)
£1,650
£6,900
Berth
£5,750
£2,350
Maintenance
£2,400
£600
Lift-out and antifoul
£550
£300
Insurance
£300
£700
Fuel
£450
£10,850
Total a year, before depreciation
£9,450 (better)

Each line is the middle of the cited range, to the nearest fifty pounds. Depreciation is a year of age on each model's published curve, at its Gauge Value, and stays out of the totals.

Sources: Lake Yard price list 2026 · BerthFinder · Boatsetter · Velos Insurance; Admiral Yacht Insurance · Boating Magazine, "Calculating Boat Fuel Consumption" · Littlehampton Marina fuel prices

05

Specification

Morgan Out Island 41MeasureTartan 37
1971–1980from listings
Years built
—
12.50 mfrom listings
Length overall
11.35 m
Sail
Type
Sail
“from listings” marks figures read from the listings themselves; unmarked figures are from our model register and not yet checked against a builder’s published source.
06

Questions

Which is cheaper, the Morgan Out Island 41 or the Tartan 37?

There is no settled difference at the same age. Pooled across 7 shared build years the Tartan 37 asks 15% less than the Morgan Out Island 41, but year by year our Gauge Estimates point the other way, so read the same-age figure as Indicative, not settled. Their Gauge Values, the median asking prices of all the boats we observed whatever their age, are £31,000 and £32,000.

Which holds its value better?

The Morgan Out Island 41: it loses about 4.6% of its asking price a year of age, against 5.1% for the Tartan 37. Both rates come from each model's published depreciation curve.

Which spends less time on the market?

Boats of the Morgan Out Island 41 had been listed a median of 410 days when we last saw them, against 165 days for the Tartan 37. That is time listed so far, not time to sell, which we don't measure yet. 67% of the Morgan Out Island 41 boats we saw 14 or more days apart cut their asking price, against 36% of the Tartan 37 boats.

How do you compare them like for like?

We compare boats of the same build year. For each of the 7 years both models have boats in, we take the ratio of their median asking prices in today's prices, then pool the years, giving more weight to years with more boats on both sides. The figure is Indicative because the thinner side has 9 boats in those years. The Gauge Values compare the whole fleets instead, so they mix boats of different ages.

Other comparisons

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