Ake Unander sailing "Butterfly"
on Lake Vätten in Sweden

Ake Unander pulled his Didi 26 out of the workshop
into the cold Swedish winter to turn it right way up
See more photos of his project

Lars Nilsson has achieved a beautiful finish on his
Didi 26, also in Sweden

LOA 8.00m (26'3")

LWL 7.55m (24'9")

Beam 2.47m (8'1")

Draft 0.5/1.7m (1'8"/5'7")

Displ to DWL 1500kg (3306lb)

Displ light 1000kg (2204lb)

Ballast 435kg (959lb)

Waterplane area 9.87sq.m (106sq.ft)

Immersion rate 101kg/cm (565lb/inch)

Wetted surface 13.8sq.m (149sq.ft)

Sail area (main + jib) 31.9sq.m (343sq.ft)

Sail Area/Wetted Surface 2.31

Sail Area/Displ 24.6

Displ/length 97

Prismatic coef .54

Block coef .40

Fineness coef .66

Righting Moment @ 30 deg 815kgm (5895ft.lb)

Righting Moment @ 60 deg 848kgm (6134ft.lb)

Righting Moment @ 90 deg 458kgm (3313ft.lb)

I 9.08m (29'9")

J 2.70m (8'10")

P10.50m (34'5")

E 3.90m (12'9")

Mainsail (excl roach) 20.48sq.m (220sq.ft)

Jib 11.46 sq.m (123sq.ft)

Drifter 15.88sq.m (171sq.ft)

Powering 10hp outboard

Headroom 1.3m (4' 3")