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Maxfli 28
Designer: Julian Everitt  ·  Builder: Gilmax Ltd. (Uk)  ·  First built: 1978
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About the Maxfli 28

With limited documentation available, the Maxfli 28 represents one of sailing's more elusive designs from the late 20th century production era. This 28-foot sailboat appears to have been manufactured during a period when many builders were experimenting with fiberglass construction techniques and targeting the growing recreational sailing market. Based on its size classification, the Maxfli 28 would have been positioned as a versatile coastal cruiser suitable for weekend adventures and day sailing. Boats of this length typically offered a practical balance between manageable single-handed sailing and modest overnight accommodations for small crews. The design likely featured a fin keel configuration common to boats of its era, providing reasonable performance while maintaining trailer-ability for many owners. Without extensive documentation, much of this boat's character remains a mystery to modern sailors. This scarcity of information suggests limited production numbers, making the Maxfli 28 an uncommon sight in today's marinas. Prospective buyers encountering one of these boats should conduct thorough inspections, as finding replacement parts or detailed technical information may prove challenging. The boat's rarity could appeal to sailors seeking something distinctive from the typical production boat lineup.

Core Dimensions
LOA (Length Overall) 28.60 ft / 8.72 m
LWL (Waterline Length) 22.50 ft / 6.86 m
Beam 9.70 ft / 2.96 m
Max Draft 4.75 ft / 1.45 m
Displacement 7,000.00 lb / 3,175 kg
Ballast 2,940.00 lb / 1,334 kg
Ballast Type Lead
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Masthead Sloop
Construction FG
Designer Julian Everitt
Builder Gilmax Ltd. (UK)
First Built 1978
Last Built 1982
Number Built 26
Related Sailboats Ericson 29 · Ontario 28 · Aloa 29 · Lancer 29 3 · Ericson 28
Owner Reviews

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Performance Ratios
Ballast/Displacement Ballast to Displacement ratio shows what percentage of the boat's total weight is ballast. Higher values generally mean better initial stability and stiffer sail carrying.
30–35% — Typical cruiser35–45% — Stiff performance boatOver 45% — Racing oriented
42.0
Displacement/Length Displacement to Length ratio measures how heavy a boat is relative to its waterline length. Lower values mean a lighter, faster boat.
Under 100 — Ultralight racer100–200 — Light cruiser/racer200–300 — Moderate cruiser300–400 — Heavy cruiserOver 400 — Very heavy
274.35
Pounds/Inch Immersion Pounds per Inch Immersion (PPI) tells you how much weight is needed to sink the boat one inch. Useful for calculating how additional gear and stores affect waterline. 4.68 pounds/inch
Rig Dimensions
I (Foretriangle Height) 14.61
J (Foretriangle Base) 11.25 ft / 3.43 m
P (Mainsail Luff) 333.00 ft² / 30.94 m²
E (Mainsail Foot) 274.35
How It Compares

vs. Aloa 29, Ericson 28, Ericson 29, Lancer 29 3, Ontario 28

This boat Similar boats
Dimensions
LOA
Maxfli 28 ★
28.6 ft
Aloa 29
28.5 ft
Ericson 28
28.5 ft
Ericson 29
28.6 ft
Lancer 29 3
28.7 ft
Ontario 28
28.6 ft
LWL
Maxfli 28 ★
22.5 ft
Aloa 29
21.6 ft
Ericson 28
24.2 ft
Ericson 29
22.0 ft
Lancer 29 3
23.5 ft
Ontario 28
22.0 ft
Beam
Maxfli 28 ★
9.7 ft
Aloa 29
10.8 ft
Ericson 28
10.5 ft
Ericson 29
9.3 ft
Lancer 29 3
10.0 ft
Ontario 28
10.0 ft
Displacement
Maxfli 28 ★
7 lbs
Aloa 29
6 lbs
Ericson 28
7 lbs
Ericson 29
8 lbs
Lancer 29 3
7 lbs
Ontario 28
6 lbs
Ballast
Maxfli 28 ★
2 lbs
Aloa 29
2 lbs
Ericson 28
3 lbs
Ericson 29
3 lbs
Lancer 29 3
3 lbs
Ontario 28
2 lbs
Sail Area
Maxfli 28 ★
Aloa 29
Ericson 28
422 sq ft
Ericson 29
436 sq ft
Lancer 29 3
374 sq ft
Ontario 28
400 sq ft
Performance
PHRF Rating (lower = faster)
Maxfli 28 ★
Aloa 29
Ericson 28
180 s/nm
Ericson 29
210 s/nm
Lancer 29 3
194 s/nm
Ontario 28
195 s/nm
SA / Displacement (higher = more powerful)
Maxfli 28 ★
Aloa 29
Ericson 28
17.7
Ericson 29
16.8
Lancer 29 3
15.3
Ontario 28
17.9
Ballast / Disp (higher = stiffer)
Maxfli 28 ★
42.0 %
Aloa 29
33.6 %
Ericson 28
40.0 %
Ericson 29
45.9 %
Lancer 29 3
38.5 %
Ontario 28
42.7 %
Comfort Ratio (higher = more comfortable offshore)
Maxfli 28 ★
Aloa 29
Ericson 28
19.9
Ericson 29
28.3
Lancer 29 3
22.4
Ontario 28
20.4
Capsize Screening (lower = safer)
Maxfli 28 ★
Aloa 29
Ericson 28
2.15
Ericson 29
1.82
Lancer 29 3
2.02
Ontario 28
2.11
Displacement / Length (lower = lighter)
Maxfli 28 ★
274
Aloa 29
293
Ericson 28
237
Ericson 29
356
Lancer 29 3
268
Ontario 28
285
Hull Speed
Maxfli 28 ★
Aloa 29
Ericson 28
6.6 kts
Ericson 29
6.3 kts
Lancer 29 3
6.5 kts
Ontario 28
6.3 kts
Speed Number (higher = faster)
Maxfli 28 ★
Aloa 29
Ericson 28
2.3
Ericson 29
1.3
Lancer 29 3
1.9
Ontario 28
1.9
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