Ljungström sailboat
The design was not appreciated by the fairly conservative yacht clubs at the time, so development was done with scarce means.The shape gave the boats the nickname The Arch Support, but is brilliant in many ways: - When sailing it is noticed that the volume counteracting swaying is midships and that the surface exposed to the wind at the sterns is minimised which makes manoeuvring at low speed easier in narrow and windy places.This is normal for modern boats with all the trains routed to the cockpit, but was very ahead of its time in the 40s when the cases and similar ropes was fastened on the mast.The mast, which lacks shroud and bar, is hollow case and consists of glued wood with a hoisted (a planed or machined grooved) luff.In this way, the mast relatively easily tilted fore and aft to adjust the boat's ltendency to luff depending on wind strength.The Ljungström rig has inspired among others: A structure that must be mentioned is that of Jac Iverssen designed Tesla.
Fredrik LjungströmCircular arc hullLjungström rigcircular arcreefingshroudFiskebäckskilThe GraphicsailingAge of SailMaritime historyAge of DiscoveryNavigationBermuda rigCrab clawFore-and-aft rigGaff rigGunter rigJunk rigLateen rigLug rigMast aft rigPinisi rigSquare rigTanja rigsailing rigsBarqueBarquentineBrigantineCatboatCutterFull-rigged shipJackass-barqueMisticoSchoonerMultihullʻaliaAmatasiBauruaCamakauCatamaranGuilaloJukungKarakoaKora koraLakatoiLanongOutrigger canoePentamaranQuadrimaranTepukeiTipairuaTongiakiTrimaranUngalawaVa'a-teleVaka kateasailing shipsAncientBalangayBorobudur shipFire shipGalleyPenteconterBiremeTriremeQuadriremesTessarakonteresDromonK'un-lun poPost-classicalBalingerBenawaBirlinnBomb vesselKonduraLongshipMalangbangShitikTongkangCarrackChinese treasure shipCaravelGhurabLancaranTrabaccoloCrommestevenGaliotGalleonGalleassFlyboatFull-rigged pinnaceLorchaMan-of-warManchuaPatacheSperonaraSquare-rigged caravel (round or de armada)Bermuda sloopCorvetteEast IndiamanFrigateGaleasPolaccaShip of the lineBilanderChialoupClipperBaltimore ClipperGallivatGundalowPadewakangPost ship74-gunSloop-of-warTrincadourBlackwall frigateDown EasterGolekanIron-hulled sailing shipWarshipJanggolanLeti letiPalariWest CountryWindjammer