Kialoa IV (Holland Maxi)

This post is a tribute to the late Jim Kilroy (1922-2016), who campaigned, with great distinction, a series of yachts named Kialoa from 1957 to 1989. This article features Kialoa IV, the replacement for his famous Sparkman & Stephens-designed ketch Kialoa III.

Kialoa IV was the first of a new breed of maxi-raters, just over 80ft long, and was designed by Ron Holland in 1979 and built using a composite sandwich-laminated hull and deck with aluminium reinforcing. The latter being in the shape of a space-frame chassis incorporated into the hull to take keel and rig loads. Kialoa IV was built by Holland's brother-in-law Gary Carlin at his Kiwi Yachts yard in Florida, which had also built the famous Imp which pioneered the space-frame concept. The composite laminate was influenced by studies carried out by both Kiwi Yachts and Dupont's research department in Wilmington. Holland noted at the time that "While all-up hull weight advantages were not a primary consideration, the tests showed lighter ends and deck were possible compared to Kialoa III".

Kialoa IV in early days, possibly during the 1981 SORC

Holland described the design philosophy at the time as incorporating aspects from his successful level rating and Admiral's Cup designs that had not yet been utilised at the Maxi scale. "Hull shape is as influenced by the IOR measurement procedure as my smaller designs. Keel and rudder designs are treated in a similar way. Choice of rated length, displacement and sail are the primary starting point for my IOR designs, attempted to hold proven relationships although there are aspects of the IOR rule that dis-proportionately penalises the larger yachts due to necessary low displacement length ratios and associated sail areas. Scaling effect needs to be handled carefully but decisions on this, and the earlier mentioned points relating to Kialoa's first series success speak for themselves".

Kialoa IV during the 1981 SORC (photo Seahorse)

Kialoa IV was launched in November 1980 and Kilroy immediately began a working-up programme for the new boat which involved her trialing against her predecessor, Kialoa III, which would later be converted for cruising. This was a unique opportunity, where use a pace boat had previously proven effective with Admiral's Cup size yachts (such as Big Apple and Marionette in 1977), but this was the first time that this had been done with ocean racing yachts at this scale.

Kialoa IV seen here with a full complement in Cowes in 1981 (photo Phil Uhl)

Kialoa IV powers upwind - 1981 (photo Hood sails)

Initial testing showed the new yacht had an advantage in light and medium conditions in the smooth waters of Tampa Bay. As the design philosophy had pushed towards speed potential in medium conditions, with the emphasis towards seeking an advantage over Kialoa III downwind, the early results were seen as encouraging. When the two yachts were paced against each other in fresher conditions and bigger seas, the speed difference was not marked to windward, with the new yacht showing slightly more heel angle and helm sensitivity, but downwind speed was as expected.

The bigger they are... (photo Colin Jarman/Seahorse, above, and Yachting, below)

Based on early testing results, as well as the fact that the boat still had approximately one foot of rating to play with (within the 70.0ft limit for the Maxi class), it was decided to optimise the speed/rating relationship with a reduction in displacement and an increase in stability. This was made easier through the built-in flexibility within the yacht, with stability-tuning cavities in the keel, and internal ballast being encased in the aluminium sub-structure rather than being glassed in. These changes saw the final rating settle at 69.5ft for the 1981 SORC and Maxi Boat Series.

Kialoa IV and Condor during the California Cup match race series in 1982, which was won by Condor (photo Sobstad sails)

The extensive tuning process had a significant effect on the early performance of Kialoa IV; she went straight into the fray and won races at the 1981 SORC, although there was something erratic about her earliest performances which was to be expected for a boat still at early stages in its development. Initially, and in certain narrow ranges of conditions, both Windward Passage and the Frers-designed Bumblebee IV showed similar speed to the new Kialoa. But Kialoa IV showed her strength over a wider wind range and looked dominant. Although the newest boat, she seemed relatively conservative, and was certainly the heaviest in terms of rated displacement (nearly 84,000lbs, against 70,600 for Bumblebee IV - although for that, Bumblebee carried a near 1% rating penalty).

Kialoa IV in fresh running conditions

Kialoa IV (photo Facebook)

Kialoa IV visible here through Condor's spinnaker, and trailing Flyer during the 1981 Seahorse Maxi Series (photo Phil Uhl | Facebook)

Kialoa IV during the 1981 Seahorse Maxi Series (photo Phil Uhl)

However, by mid-season she was more than good enough to win the 1981 Seahorse Maxi Series (for yachts rating between 50 and 70ft), and included Ceramco NZ which used the event as a build-up for the Whitbread Round the World Race later that year).  For the most part, Kialoa IV enjoyed close racing with her near sistership, the new Condor, but dominated the series with line placings of 2/1/1/1, and third on handicap (4/1/3/6). During this season, and before the Sardinia Maxi Series (which she won), her main boom (and mainsail) was lengthened by 3ft. This increased her rating closer to the 70.0ft IOR Maxi limit.

Kialoa IV romps off the startline to leeward and ahead of Windward Passage and Nirvana, and Condor to leeward (left) during a SORC regatta (photo Phil Uhl | Facebook)

Kialoa IV about to cross tacks with Condor (centre) during the 1982 Clipper Cup, with Windward Passage not far behind (right) (photo John Malitte/Sea Spray)

Kialoa IV in power reaching conditions during the 1982 Clipper Cup (photo Guy Gurney)

Kialoa IV went on to compete in many international series and regattas, including the 1982 SORC and the Clipper Cup, in the latter she performed strongly finishing as fourth yacht overall (just behind Condor) and helping the US team to an overall victory in the 1982 edition (alongside Bullfrog and Great Fun).

Kialoa IV to leeward and behind Condor during the 1983 SORC (photo Larry Moran)

Kialoa IV won Class A in the 1983 SORC against some new competition, including the new Peterson-designed Midnight Sun and the Pedrick-designed Nirvana, with a combination of good speed and tactics and few gear failures. All the Maxi fleet were well down in the overall standings however, with Kialoa IV managing just 38th within the whole fleet. 

Kialoa IV during the 1983 SORC (photo Larry Moran)

It was a similar situation in the 1984 SORC, except this time Kialoa IV had to settle for second in Class A behind the Soverel 55-footer The Shadow, and was 47th in the overall fleet standings.

Kialoa IV (photo Facebook)

Kialoa IV to leeward of Windward Passage in light airs during the 1983 SORC (photo Larry Moran)

Kialoa IV on a busy startline during the 1983 SORC with Windward Passage and Nirvana (photo Phil Uhl)

Kialoa IV finished as second yacht on individual points in the 1984 Clipper Cup (with placings of 5/13/3/3/14), behind the new Frers-designed Boomerang, but ahead of Sorcery, Nirvana and Condor. 

Kialoa IV in hard running conditions during the 1984 SORC, with Huaso (a Frers 81-footer) just behind (photo Guy Gurney)

Kialoa IV during the 1984 Clipper Cup - photo above by Sharon Green | Ultimate Sailing), and below by Phil Uhl

Kialoa IV was often at the forefront of sail development and pioneered the introduction of nascent Kevlar technology at the Maxi scale. Increasing quantities of Kevlar were used to support maximum allowable roach in the mainsail. Dacron was retained in lower sections, presumably for ease of handling, given that cloth weights for both materials were in excess of 8oz.

Kialoa IV with a new Kevlar "crescent cut" no.3 headsail - an article at the time by Hood sailmakers notes that "the leech hollow is at absolute minimum to ensure that the foretriangle is full. The no.3 sheets at 8.25 deg and allows full main to be carried at 30 knots apparent wind with the mainsheet traveller two-thirds down the track". Condor (below) opted for the new Norths vertical cut technology (photos William Payne/Seahorse)

The design was a successful one for Holland, and along with sistership Condor, she generated commissions for Round-the-World derivatives Lion New Zealand and Drum for the 1985-86 Whitbread, and the 'inshore' Maxi Sassy, although none of these boats made much an impression on the race course, being shorter than Kialoa and Condor, and heavy for their length. Lion New Zealand did, however, finish second in the 1985-86 Whitbread Round the World Race, with greater structural integrity than some of her rivals.

Kialoa IV - date and regatta unknown (photo Facebook)

Kialoa IV during the 1985 SORC negotiates some new and old bridge infrastructure (photo 'cadee' Sailing Anarchy Forums) 

Kialoa IV's reign at the top of the Maxi class was relatively short however, and perhaps not long after finishing second to Boomerang in the 1985 SORC the decision was made in 1985 for the replacement maxi, the new Frers-designed Kialoa V. Kialoa IV went on to compete in the 1987 Antigua Race Series, before Kialoa V was commissioned that same year.

Kialoa IV in more recent times, seen here in La Rochelle, France (photo Sail-World)

I was pleased to receive a copy of a fantastic painting of Kialoa IV by marine artist John David Taylor (entitled "Rocket Ship", below). John David was part of the Southern California boating industry throughout the seventies and eighties and had the opportunity to watch Kialoa IV in action during the California Cup match races. He recalls that Kialoa IV was state of the art at that time and left a lasting impression which lead him to become a marine artist (ASMA member). Remarkably, this was his first painting, and was accepted into the West Coast ASMA show (May/June 2017) at the Channel Islands Maritime Museum.

More details (and photos) about Kialoa IV can be seen on the "Kialoa US-1: Dare to Win" website here, and a record of all her race results are here.

A Sail-World obituary for Jim Kilroy is here. 

Article updated December 2025

One Tonner Revival Regatta 2017

The 2017 edition of the One Tonner Revival Regatta, hosted again in Breskens, The Netherlands - details below:

A photo from the 2016 regatta (above), with Guanabara passing behind Esprit du Morbihan.  A video summary is below

Jamarella (Farr 50)

Jamarella was English yachtsman Alan Gray's second yacht of that name, and followed his successful One Tonner that finished as second yacht overall in the 1987 Admiral's Cup. Gray had built the new Jamarella expressly to try out the new World Cup circuit established for the Fifties, and because he felt that the TMF changes could produce a 50-footer that was not just a useful Admiral's Cup team yacht, but a potential series top scorer.

Jamarella showed early form in the British Admiral's Cup trials, held in Kiel (photo Christel Clear/Seahorse)

Jamarella, seen here again in Kiel in 1989 (photo Bateaux magazine)

The design for Jamarella was slightly altered from her circuit-racing sisterships Carat VII and Windquest, with rig and keel modifications to orient the boat for ocean-racing courses and to suit the slightly lower maximum rating limit of the Admiral's Cup. She was built in carbon/epoxy/PVC foam and Nomex sandwich by Thompson boatbuilders, and was helmed by Gordon Maguire and Lawrie Smith. She sported Diamond sails on a Sparcraft mast, a common and fast combination at that time.

Jamarella slips along in light airs during the British trials (photo Rick Tomlinson/Contender)

Jamarella above and below in early trials (photo Peter Ludlow)

The British team was sponsored by The Observer and The Glenlivet, and the team sought to play their part by carrying their logos on their hulls. The first attempt at placing the decals on the hull of Jamarella was, at the last minute, identified as being too far aft to comply with the tight advertising regulations that were then in force. Leaving nothing to chance, the letters behind the line 18ft from the transom, were removed to be replaced in a compliant mid-ship position after the first race (photo below).

Jamarella mixing it up with two other Fifties at a leeward mark during the 1989 Admiral's Cup (Japan's Will to the right) (photo Nick Rains/Seahorse)

Plenty of action aboard Jamarella as she rounds a leeward mark during the 1989 Admiral's Cup (photo Francois Mousis/Seahorse)

Gray's instinct was confirmed and his professionally-run campaign was rewarded as Jamarella spearheaded the dominance of the Fifties in the 1989 series, with the new breed of these Admiral's Cup 'maxis' taking line and handicap wins in five of the six races, and taking four of the top five places overall. Jamarella led the charge for the British team with a superbly consistent 1/3/2/3/2/4 series that made her top individual performer in the 42-boat fleet (from 14 nations), and led Britain to its first Cup win since 1981.

Jamarella on a tight reach during the 1989 Admiral's Cup (Sail magazine)

Jamarella powers to windward during the 1989 Admiral's Cup (photo Sharon Green/Harken)

After the 1989 Admiral’s Cup the Fifties gathered again in Newport Rhode Island for the sixth and final event in the 1989 World Cup. Jamarella was shipped over from England and finished third.

Jamarella arriving at (above) and leaving (below) Lymington Marina during the 1989 Admiral's Cup (photo Shockwave40 blog)

Jamarella is now based in the Netherlands, recent photographs are below.

Recent photos (above and below) of Jamarella (Yachtworld)

 

Another recent photo (Facebook)

Jamarella as seen in 2022 (Facebook)

Smir-Noff-Agen: Saved!

Smir-Noff-Agen, one of five centreboarders designed by Bruce Farr for the 1977 One Ton Cup, has been rescued from an uncertain future in Australia's Gold Coast. She was loaded onto a ship in September 2016 for transport to Dubai, where she is receiving a complete restoration and upgrade to have a second life as a modern IRC racing yacht, with a similar approach to that given to the Half Tonner Swuzzlebubble.

Smir-Noff-Agen seen here sailing as part of the victorious New Zealand team during the 1977 Southern Cross Cup in Sydney

The Farr centreboarders of 1977 were very fast yachts, and featured some of the cleanest hull shapes of the IOR era, and considered long for their rating (27.5ft IOR). As with Swuzzlebubble, this combination, along with a modern rig, sails and foils, should mean that the boat will be very competitive under IRC.

In somewhat of a sad state following a stalled refurbishment effort in the Gold Coast

Smir-Noff-Agen was later named Vanguard, then Scallywag II (and won the 1982 Sydney to Hobart race), and then Best by Farr - her history can be seen here. She will be re-named Oro Nero, and will feature a black and gold colour scheme.

Being loaded onto a cradle (above) and truck (below) for her long voyage to Dubai

The effort to give Smir-Noff-Agen a new lease of life means that four of the five boats built to this design are still sailing and/or racing (see Jenny H, Mr Jumpa and The Red Lion), with only the whereabouts of the Australian boat Hecate unknown (but thought to be located in Darwin).

Update here.

Gerontius (Farr 42)

The Bruce Farr-designed Gerontius (KZ-2302) had been designed for Graeme Eder in 1973 (Design #39) as an extension of the Farr 33 Moonshine, as a fast cruiser but with some emphasis towards the IOR where it was not considered to affect performance too greatly. At this early stage in the development of Farr's larger yachts, and because of her aspirations as a dual purpose yacht, a masthead rig was used, but of reasonably moderate proportions to match her light and easily driven hull. Her relatively squat looking rig and low sail area helped achieve a reasonable rating, although this was still relatively high at 35.5ft.

Notwithstanding that she was not designed as an out-and-out Admiral's Cupper, Gerontius created something of a minor controversy when she was selected for the New Zealand team for the 1975 Admiral’s Cup. Showing surprising speed upwind in light airs, she finished the trials in third place, behind two S&S designs, the 42-footer Barnacle Bill and the 45 footer Inca, with a clear edge over the highly fancied S&S designed 50 footer Corinthian.

Gerontius during the New Zealand 1975 Admiral's Cup trials (photo Sea Spray)

It had not been expected that the unusual looking and homegrown design would be competitive, and after it became clear after the first three races that she was clearly in the running, her competitors aboard the S&S designs lodged a joint protest over her IOR measurement certificate. This was dismissed, although it clearly rattled the Gerontius crew who suffered from poor starts in the next few races. But she ultimately prevailed and was duly selected to be part of the New Zealand team for its first attempt to win the coveted trophy, regarded as the unofficial world championship of offshore sailing.

Gerontius claws her way round Flat Rock (off Kawau Island) in the second trials race in which she finished second to Barnacle Bill on corrected time (photo Sea Spray)

The Gerontius crew for the Admiral's Cup included Farr himself (which meant that he wasn't able to sail aboard his Quarter Tonner 45 South which was making history at the same time in France), as well as Peter Blake. Her optimum performance was in fresher breezes, as was that of the Carcano-designed Vihuela in the Italian team. As Bob Fisher noted in his Admiral's Cup history "The drawback to their light displacement boats is that they lack sail area for light weather and in 1975 that was to be their undoing".

Gerontius in tight reaching conditions during the 1975 Admiral's Cup (photo Jonathan Eastland)

However, despite the typically light air conditions that prevailed, Gerontius' place in the team was vindicated when she ended the series as the top scoring New Zealand boat in 11th place overall. The New Zealand team itself finished a creditable sixth place, of the 19 nations represented.

Gerontius seen here in Cowes during the 1975 Admiral's Cup

Gerontius returned to New Zealand and raced actively for some time, including competing in the 1977 Auckland to Suva race, where she finished fourth on line and sixth on corrected time (amongst no less than 61 finishers!). Eder and Blake also sailed Gerontius in the same year to overall line honours in the 1,250 mile 1977 Round the North Island race.

Gerontius at the start of the 1977 Round the North Island Race (photo Maritime Museum)

Above and below, Gerontius sailing in Hawaii in 1978 (photos by Phil Uhl | Facebook)

Gerontius went on to race in the inaugural 1978 Clipper Cup, as part of the New Zealand 'A' team alongside the Farr One Tonner Country Boy and a newer fractional rigged Farr 42, Monique, and revelled in Hawaii's reliable breezes, finishing in eighth place overall (by now with a slightly lower rating at 35.1ft). 'NZ A' led the series by just two points going into the last race (the 800 mile Around the State), but were overtaken by a strong Australian effort in the finale, and finished second overall (the 'NZ B' team finished third, thanks to a second place by Inca in the final race).

Gerontius racing in Hawaii in 1979 (photo Phil Uhl | Facebook)

Gerontius, seen here circa 1982, passing by the Wyland Painting on the Ilikai Marina building (photo Phil Uhl)

Gerontius on a tight spinnaker reach during a local (Hawaii) Friday-night race in 1986, alongside Uin Na Mara (photo Phil Uhl)

Gerontius seen here on the left during a local (Hawaii) Friday-night race in 1989, alongside Uin Na Mara, General Hospital and Cane Fire (photo Phil Uhl)

Gerontius remains based in Honolulu (photo above), and is understood to now have a taller rig and significant interior modifications. 

Article updated April 2026