Nov. 19, 1946. G, L, MARTm' 2,411,382 DOCKING FLYING BOATS Filed Dec. 2, 1943 2 Sheets-Sheet 1 FIIGUR.E ‘g a / w ‘3,; INVENTOR. ‘ GLENN ATTO MARTIN EY Patented Nov. 3.9,‘ 1945 2,411,382 UNITED STATES PATENT OFFICE DOCKING FLYING BOATS ‘Glenn L. Martin, Baltimore, ,Md, passignor to The Glenn L. Martin C0mpany,VMiddle River, Md., a - corporation of. Maryland Application December 2, 1943, Serial No. 512,533 2 Claims. 1. This invention relates to a novel‘ system and apparatus relating: thereto, to facilitate the han dling; mooring and; docking of large ?ying boats. Due toithe necessity for keeping the structural weight to a minimum in. aircraft, in order to carry the maximum pay load, the hulls of ?ying boats» are designed with- dueconsideration for all conditions that, may be- encountered in normal operation. These hulls, are, not of the massive structure of1 Water craft and it is not advisable to dock ?ying‘ boats by means of tugs usually em ployed indocking ships. Care must be taken to see-that the ?ying boat bulls are not damaged by impact or; abrasion. when a?oat. The motive power and. steering of ?ying, boat-s along open water for take-cit. and landing is derived from the propellersvan-d empennage but the empennage is not adequate to- effect the precise control at slow speeds necessary to dock such a craft. For this reason, it has been necessary to develop aux iliary handling and docking facilities for ?ying boats. The general object of this invention is to facili tate the handling, mooring and docking of ?ying boats of any size or shape. More particularly, an object of this invention 2 to protect the sidesof any craft in case of impact. Located on the shore structure or anyother suitable-place are power operated winches 9; ill and H. Winch 9 has a cable l2 secured ‘thereto, which passes‘ through a pulley guide [3 and is attached to either end of the boat. While the invention isillustrated maneuvering the boat to the dockbow first, it is possible to dock theboat stern ?rst so that when it is moved from the dock to open water, it will, be in position to continue under its own power. The pulley guide 13- is located at the, end of the path along which it; is desired to move the boat. Winches liland II have two drums each to which cables I4, L5, l6‘ and Il are attached. Cables: l2, I5 and I6~may be connected‘to a single terminal» ?tting which is secured by a suitable fastening device to- the bow or stern of the boat or separate attaching means may be provided to secure each cable to the boat. In a similar man ner, cables l4 and I‘! may be joined to a fitting which facilitates the attachment of the cables to the boat. Floats l8 0n the cables make it easy to pick up the cable ends for attachment to the boat. The cable is usually picked up from the water is the provision of means to maneuver a ?ying and secured to the hull by a docking crew in a boat when a?oat, from open water into a posi tion alongside a ?oating dock without bumping or scraping the hull. A further object of this invention is the pro small boat along side the ?ying boat but the se curing of the cable to the hull can be accomplished by cable pick-ups on the hull. In the preferred form of the invention, the cables from the winches are rigged through the pulleys on the buoys and joined at the attaching ?ttings. Cables l2, I5 and it are connected to one ?tting and cable-s l4 and I‘! are attached to another. These ?ttings are picked up and se cured to the boat. In order to dock a ?ying boat according to the above described invention, the ?ying boat ap proaches the off-shore end of the dock and stops somewhere between the anchored buoys. Cables l4 and I‘! are secured to one end of the boat and cables l2, l5 and I6 are secured to the other end. The points of attachment of the cables to the ?ying boat should be forward and aft of the vision of ?ying boat handling facilities that in volve readily available material and apparatus, and which can be easily and quickly installed, maintained and repaired. rther and other objects will become apparent from the description of the accompanying draw ihgs which form a part of this disclosure and in which like numerals refer to like parts. In the drawings: , (01. 114—230) Figure 1 is a perspective view of the schematic arrangement of the invention. Figure 2 is a plan view of the arrangement shown in Figure 1. Figure 3 is an elevational View of the arrange ment. center of resistance of the boat to cross winds or The general arrangement of the invention illus water currents. Pulley guide I3 determines the trated in Figure 1, shows a ?ying boat I, ap point toward which the boat will be towed. proaching a U-shaped‘ ?oating dock generally Winch 9 reels in cable 22 as winches H1 and II indicated as 2. Ramp 3 is hinged to the floating 50 pay out cables Hi, [5, I6 and IT. The rate at dock and also the shore‘structure so that the dock which these latter winches are operated relative rides the tide. to winch 9 determines, in a positive manner, the ' In the water, off the end of the dock are an path of the boat. An operator located in a con_ chored buoys 4, 5 and 6 and ‘I having pulleys 8 trol tower having full view of the docking pro secured thereto. These buoys may be cushioned 55 cedure will, by remote control, manipulate the 2,411,382 3 cables by controlling the winches. The winches I0 and II may be operated in unison or inde pendently, as required to maintain the boat in alignment against wind or tide. To move a boat from the docking to open water, the reverse operation of the winches is all that is required. 7 It is to be understood that certain changes, alterations, modi?cations and substitutions can 4 at a controlled rate of speed of the laterally ex tending cables, the boat may be positively moved along a predetermined path. 2. An apparatus for moving a seaplane rela tive to a shore structure along a ?xed, predeter mined path, comprising a towing cable and a pair of continuous cables, the midpoints of'said pair of cables adapted to be secured to the forward and aft ends of a seaplane hull, a plurality of power I claim as my invention: vdriven winches on said shore structure to which the ends of said pair of cables are attached and by which said cables are reeled in or payed out, a 1. An apparatus for aligning a ?ying‘ boat with pair of ?oating buoys anchored at’ laterally be made so long as they do not depart from the _ spirit and scope of the appended claims. a ?oating dock having the free end thereof ex spaced positions relative to each side of said tending toward open Water and the other end movably secured to shore structure whereby said path 'a'distance approximately equal to the wa- _ dock may ride the tide, a power driven winch located adjacent the shore end of said dock, a cable extending from said winch secured to the path, said pair of buoys being spaced along the terline length of said seaplane hull, cable guide said pulleys on each side of said path, Winches means on said buoys, each of the pair of said cables extending transversely of said path sup ported by a buoy on each side of said path, the midpoints of said cables being located between the buoys generally aligned with said path, a cable guide on said shore structure at the shore end of said path, said towing cable passing over said last mentioned cable guide for moving the seaplane along said path, terminals at the mid points of saidcables detachably secured to said engaging said cable‘at each shore end thereof, the seaplane hull, ?oats located on the laterally ex midpoint of said cable being secured to a terminal tending portions of ‘the cables between the mid- forward portion of the ?ying boat hull to control the forward motion thereof along the dock, guide means for said cable adjacent the shore end of said dock, a plurality of anchored, ?oating buoy supported pulleys located off the free end of the dock laterally spaced from the desired path of travel, a continuous cable passing through one of on the end of said'?rst mentioned cable which 30 points and the cable guide means on said buoys is secured to the forward portion of said hull, a to maintain the midpoints of said cables near the second continuous cable extending through pul leys on laterally spaced buoys farther from shore having winches on the shore ends of said con tinuous cable, the midpoint of which is adapted surface of the water, said Winches on the ends of the continuous cables being operated at con trolled rates of speed relative to said last named winch to maintain the motion of the seaplane‘ to be secured to the oil-shore end of said sea hull along said path and restrain said hull from , plane hull whereby upon the simultaneous reeling in of the ?rst mentioned cable and paying out lateral departures from said predetermined path. ' GLENN L. MARTIN.