About this tender
The wallywhy100 is the build we ask Wally for when an owner wants the full wallywhy volume brief without committing to the larger 150 or 200. At 21.46m LOA it sits just under the 70ft threshold, and the case for it rests on a single continuous flush deck running bow to stern - no break, no step, no compromise imposed by a conventional superstructure. The unladen displacement of 48,000 kg is telling: this is not a light sportscruiser dressed up with a design story, it is a proper volume yacht that happens to carry its weight in a notably clean silhouette.
The IPS driveline is a Volvo Penta D13 IPS 1350, rated at 1,000 hp, returning a quoted top speed of 27 knots and a cruising speed of 24 knots with a range of 340 nm at cruise. For a 21m motor yacht carrying eighteen people, those numbers represent a sensible balance of pace and range; the IPS drive keeps the bilge clear and the ride quiet at the speeds where this hull spends most of its time. Classification is B and F with RINA S.p.A., which covers offshore and coastal use without limiting your programme.
What makes the wallywhy100 genuinely different in its class is the volume extraction. The owner's suite sits amidships and uses smart glass to section off the ensuite, generating a sense of space that conventional bulkhead layouts at this length rarely achieve. Alongside that there is a large VIP cabin and a twin, so a family programme or owner-and-guests configuration works without anyone drawing the short straw. The hybrid inside-outside saloon concept - opening sides, aft doors, a galley and bar within the same space - means the boat reconfigures meaningfully between passages rather than just opening a hatch.
The aft beach platform lowers hydraulically to launch and retrieve tenders and toys, while the passerelle doubles as swim steps. A forward cockpit extends the usable exterior area at anchor. We would put the wallywhy100 alongside the broader displacement-style crossover category for serious owners whose programme demands interior volume and a real aft platform, but who need the hull short enough to remain genuinely nimble in a marina.
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Highlights
The four details we'd point out first to a captain who hasn't seen one on the water yet.
The defining structural choice on the wallywhy100 is a single continuous flush deck across the full 21.46m. There are no level changes separating the forward cockpit from the saloon or the aft beach area, which in practice means unrestricted flow between zones and a working deck that crew can manage without stepping over coamings at sea.
The entire rear platform lowers hydraulically to water level, allowing tenders and water toys to be launched or retrieved without crane work. The passerelle is integrated as swim steps, eliminating the usual clutter of separate boarding ladders. At a 21m length, this level of tender-handling capability is not standard and adds genuine operational flexibility for an owner running a full toy programme.
Wally's technical sheet notes that the owner's ensuite uses smart glass to create separation from the sleeping area - a first for this class of yacht at this length, according to the manufacturer. The practical effect is a bathroom that can be opened visually to the suite to borrow natural light without sacrificing privacy.
The 1,000 hp Volvo Penta D13 IPS 1350 unit delivers 27 knots maximum and 24 knots at cruise, with a 340 nm range on 4,600 litres of fuel. IPS drive positioning keeps mechanical loads forward of the transom, contributes to the clean aft platform arrangement, and reduces vibration and noise at cruising revs.
The belowdecks layout provides an owner's suite amidships, one large VIP cabin, and one twin - three separate cabin spaces on a hull just under 70ft. The boat is certified for eighteen persons under RINA Class B and F, covering both offshore and coastal passages within the same certification.
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The full specification
Specifications, prices, availability, and performance figures are supplied for guidance only and remain subject to confirmation by the yard, seller, broker, survey, contract, and final specification.
Questions, answered
Last call · Available
Wally · Monaco
Tell us about your yacht, your programme, and the missions wallywhy100 needs to handle. We come back within 48 hours with a written assessment - fit for the brief, lead time, and trade-offs against alternatives in the same band.
Prefer to talk? +44 (0) 77180 88055 · other ways to reach us
From the library
