Elco pt boat pdf free download

The gauges ar rhe borrom indicare manifold pressure. The panel left of rhe gauges is rhe conrrol for firing rOlpedoes. The elecrrical box jusr rigla of rhe sreering wheel is rhe connecrion ro rhe radio for sending and receiving on rhe bridge. The rhrorrles for rhe engines are 10caredjLlsr1O rhe righr ofrhe gauges. Three compasses are moul1fed in rhe cockpir. The door arrhe righr leads 10 rhe chan house.

To gerrhe boarrllldellvay, rhe skipper shoLlld firsrmake cerrainrharrhe rhree rhrorrles are in uell1ral. Then he signals rhe machinisr 's mares below inrhe engine room ro sran rhe engines and run rhem ar idling speed. A seaman moves forward and aft ro casr off rhe lines. The skipper rhen slowly advances rhe rhree rhrorrle knobs wirh rhe heel ofhis palm. The seamanship of rhe skipper is derermined by how he manipulares rhe rhrorrle and rhe sreering wheel.

The wbular limir srop around rhe wrrer is ro prevelJl rhe gunsfrom shooring up rhe boar. Ar rhe exrreme righr side ofrhe bridge is rhe bridge blinker key wirh cover opened. Ir is used ro send lighr sigl1als.

Courtesty Eko. The Inrerior ofrhe bridge of a Higgins 78foorer. Flux gare compass, 2. Pioneer compass, 3. Announciaror and rhrorrle, 4.

Insrrumenr panel, 5. Speaking rube ro chan house, 6. Torpedo direcror srand, 7. Signaling searcltlighr, 8. Remore conrrol. To increase fire powel; a 40 mm gun is mounted ar rhe srern ro replace rhe 20 gUll. Note the steel rod frame the gUlls are mounted PT W Claaa u. Courtesy PT Boat Museum. Close-lip view of 37 m shells used on board late model PT boats. The shell with black color projector denotes armor-piercing A. Both could be filled with tracer for observatioll offire.

The 37 mm M4 call1lOIl, built by Americall Armamellt Company originally for P 39 aircraft , illcorporated a 30 round magazine, and had a rate offire of rounds per minute. Counesy of Roben Ferrell. Radio illstallatioll ill chari room. Close-lip oj radio receivel: Counesy of Elco. Radareqllipmellt clljorlvard starboard comer oj chart room.

Officers' head. Officers' state room. Engine room looking Jonvard. Electrical panel at left oj laelder Courtesy of Robert Ferrell. JOO Engine room pOri aft showing exhaust stacks. Note seat for engineer at the top of engine and shifTing levers. A close up view of the searchlight and the antenna lIIount. Courtesy Elco. Depth charges are not shown in this picture. Courtesy ofElco. Length 77 feet; beam 19' 11 "; draft 4'; displacement 35 tons.

One or two Lewis machine guns mounted forward. Torpedo Tubes: Four 21 inch Mark bow launching. Depth Charges: Eight Mark 6 pound charge. Depth Charge Racks: Eight individual side launching lype "C" or two four charges each tern launching. Smoke screen Generator: Mark 3, capacity 32 gallon F. Fresh Water: gallons in two 90 gallon tanks.

Fuel: 3, gallons high octane gasoline. U k Lubricating Oil: 30 Gallons. Fresh Provisions: Four days' rations for nine men and two officer. I Communications: Blinker tube, semaphore, M. Machinery: main engines - three 1, hp, Packard 4-M Generator - I Lawrence 5-kw generator, air cooled. Power - four 6 0 volt storage batteries. Shaft - three shaft, three propellers all right hand. Rudders - three rudders, mechanical steering.

Cruising Radius: Full load maximum speed, 41 knots, miles. Full load maximum sustained speed, 35 knots, miles. Full load one engine, II knot, miles.

I The PT boat usually operated atllight. The stalldard equipment Jumished wilh each type oJ boat is listed olllhe JollolVillg pages. Length 78 feet; beam 20'8"; draft 5'3"; displacement 35 tons. One 20 mm Oerlikon mount. Later increased to 1, hp.

Power - four 6 volt storage batteries. Shafts - three shafts, three propellers all right hand. Full load maximum u tained speed, 35 knots, miles. Full load one engine, II knots, miles. Courtesy of the 3tional Archives. Length 78 feet; beam 19'5"; draft 5'; displacement 34 tons.

Length 80 feet; beam 20' 8"; draft 5'; displacement 38 tons. Ammunition: 20 mm - rounds.. Ammunition: Same as PT 20 type. Torpedo Tubes: Four21 inch Mark 19 bow launching. Depth Charge Racks: Eight individual side launching type "c. Lubricating Oil: 30 gallons. Fresh Provisions: Four days rations for nine men and two officers.

Fresh Water: gallons. U k I Communications: Blinker tube, semaphore, M. F set per boat. Generator -two II2-kw water cooled generator. Full a k Fresh Provisions: Four days rations for nine men and two officers. I m Communications: Blinker tube, semaphore, M.

Radio Direction Finder: One R. Later increased to 1, Hp. II was mOSI effective to use against enemy barges. Courtesy of the J08 ational Archives. One of the deVice! Ihe deVIce was nol successful. Courtesy or the PT Boat Museum. The frames are built of laminated spruce, white oak and ma- to each other, with sheets of airplane fabric and marine glue in be- hogany. All the joints are secured with marine glue and screw. The planks are fastened to the frames with screws and to Both sides of the frames are covered with fir plywood to make it battens with copper nails.

When planking is completed, the hull is water tight. When finished, they are called bulkheads. The keel, which is made of spruce, is then attached to the frames, The deck, like the planking, is also made of two layers of ma- spliced to the stem and secured with brass bolts.

The chine, which hogany board with marine glue and airplane fabric in between. Both is the hull member joining the bottom of the hull to the sides of the deck and planking are then bolted to a single continuous wooden boat, is also bolted on. Longitudinal battens, running parallel to the member the entire length of the hull. The deck houses are built of chine, give further support to the planking. The space between the frames in the superstructure i insulated with cork.

IO 17'- One night, in late February, , Lt. GeOlge Springel, J,: and Lt. Based on afew sketches Inade in a pocket notebook that evening, a prototype model ofa torpedo rack wasfabricated in the Scrap Metal Section ofthe New York Navy l'ard.

Itll'as modified with a series of cables attached to a manually operated"llOndle such that when the handle was pulled, it started both the gyro mechanism and the engine ofthe torpedo.

After a briefdelay to enable the gyro and engine to achievefull speed, the pins securing Ihe torpedo in the rack were removed. A few lI'eeksfollowing the construction of the prototype, it was installed aboard PT when she was ordered to Newport on a weekend training exercise.

Over a period ofseveral days, the torpedo was launched, recovered, serviced and launched again with complete success. A Navy Captainfrom the Bureau ofOrdinance in Washington was just visiting the station and came along on several ofthe test firing runs.

By the time PT had returned to the New York Navy Yard, orders had been received from the Bureau to install this torpedo rack on all Squadron 12 boats. H"II framing of fico 80 foot PT boat. Courtesy of the PT boat Museum. Dota 00l1oDo PM crulotnc goo 11, 1, 8. I" "'a. J1G; AU 'P. The result was a success in every respect, not only in when Colonel 1. Vincent, the designer of Packard's famous Li- performance but also in terms of manufacturing and production brary motor, became interested in PT boats.

Elco specified the per- considerations as well. The development of this reliable power plant loS formance characteristics and left it to Packard to develop the ma- contributed much to the excellent overall performance of both the 2. Cf'W""" rwMN. Courtesy of PT Boal museum. I 10 1If'! I 'It r.. The general speci fications of the Supercharger Dnft Ift. During World War II, camouflage schemes cr measures were developed for each type of vessel.

Measure 31, also named Dark Pattern System, was designed for offshore operations. C'f e To standardize the cam- tion of Captain Henry A. Ingram, issued various approved designs. Z Ul 0"1 Ul.. J r-UlO"1rN. Cd" George C. Zebra stripe was used idelllily of Ihe craft and cuurs'e direcliun. II was nul successful.

QJ QJ , However, for night and close quarters operation in Ihe Pacific. The crews quickly painled over them with dark green paint to merge beller with the jungle. The only area the zebra type J! The attachment was WI additiollal gas tallk IIsed 10 illcrease cruisillg range. PTs also attempt to stay sufficiently close to shore to fifty yards or less, opening fire at about yards. The PTs, in sight any barges that may be loading or unloading on the beach.

The PTs then withdraw, reform and return and known positions of reefs and shore batteries. Most barge pa- for another run on any barges that may have survived the first run. As many runs are made as are required for destruction of all the Division colulIln. Counesy of the United Slales avy. Where a group so Y os. Courtesy of lhe Uniled States Navy. The use of tracers has a lot to do with the inaccuracy of the enemy's return fire.

They cannot face the hail of red balls coming their way and stay on with their own guns. However, too much tracer in our own fire tends to blind the gunners. Therefore, a compromise must be made. The rhree basicforlllCllions are division colum. Division Echelon. Counesy of the United Slates Navy. II also offered all excellelll defellse agaill. I e II was Inore unwieldy alld subject 10 enfilade. TlVo divisions oj PT boats in echelonJonnation. Courtesy of the NEXT. Squadron Jormalion is used Jor cl'llising, operaling wilh other units oj lire.

Three divisions oj PT boals in squadronJonnalioll column Vees. Courtesy of lhe United Slates Navy. Each subsequenlll'ave should take advalltage oflhe cOllfusioll caused by Ihe previous lI'al'e. Courtesy of Lhe National Archives. III developillg WI ollack, Ihe caplaill oflhe PTboal should use sleallh ill closing Ihe rallge and seek afavorable allack course where Ihe speed of his bocil call besl be used. The use ofsun alld mOOlllO blilld alld silhouelle Ihe ellemy, respeclively, should be coordillaled ill Ihe allack plall.

Olher boals should folloll' up and]ire IOrpedoes if necessalT The deplh charges lIlay be used 10 ]ill ish off a crippled I'essel. The divisiolls should be released al Ihis poilll 10 press home Iheir ollacks illdividually.

Courtesy of Lhe ational Archive. During Ihe slra]ing allack by aircrafl, il is beller 10 CLII across Ihe line of]ire al high speed ralher Ihan slraighl alld risk being raked from ahead or behilld. When Ihe range is less Ihan yards, use fOOl deplh sellings of deplh charges. When grealer, lise fOOl sellings. Besl allack speed is 36 kiWIS. Slow 10 20 kllols whell droppillg deplh charges.

Courtesy of the I alional Archives. I' 1,,1 '. One tank of smoke normally carried aboard a PT boat is estimated 10 be capable of laying a screen for about three miles at maximum speed.

Basically it is just a matter of aiming the boat in the direction of a collision course with the moving target. To understand torpedo control it is important to know that torpedo wbes, mounted on deck, must be swung out a small amount to permit the torpedoes to clear the deck.

To help aim the PT boat, the tolpedo director is used. This unit is moullfed on the bridge with the torpedo track arm parallel to the cellfer line of the boat. An even simpler device used in tOlpedo control is the Mark 7 portable angle solvel; commonly known as an "izwas. By addillg 'he sight angle to present target bearing, the torpedo firing course can be obtained. Torpedoes can be fired electronically from the bridge or by emergency percussion with a mallet by a torpedoman stationed at the tubes.

It is standard praclice to retard thronles at the nlOmellf offiring to allow the torpedoes to clear before changing course. Gun cocked. Fully ready condition, sometime called Condition I, means: b. If weather i wet, cover over magazine and breech mechanism, not over muzzle. Safety on until ready to commence firing. Electric power. Magazine in place. Electric power up to the firing switches of all firing circuits.

Bridge control equipment. If weather permits, gun is manned continuously. If not, gun secured pointing up. Machine gun. Steering control shifted to outside station. Covers removed. Torpedo director uncovered. Ammo belt up to gun, loaded and put on safety until ready to fire.

Telescope cover removed. If weather is wet, keep muzzle bags on guns, cover over turret. Gun manned, trained on bow or probable target bearing.

Tubes trained out and secured in that position. Firing circuits ready for firing. Loaded and primed impulse cartridges in impulse chambers.

Firing mechanisms set for local percussion as well as electric firing. Fully ready for the run. Depth setting made for the type of target most likely to be encountered. Torpedo speed set for the highest available. Gyro angles set as required. All subsequent tactics Clnd doctrilles used ill combClt were developed Cit the cellter. PT underway with crew at general quarters. Courle y of the PT Boal Museum. Depth Charges. Replace plain safety caps with knobbed afety cap secured to racks.

Do not wire safety forks to racks. Depth settings are set as directed by the boat captain. Personnel Duties. Captain - wheel or throttle b. Executi ve officer - Throttle or wheel c. Gunner's mate - 20 mm gun. Torpedo man - Stand by torpedoes or depth charges.

Quarterma ter - Ammunition passer for. Radioman - Radio g. Machini t's mate - Engine room. Courtesy of the aLional Archives. Aerial view of the Elco plant in Bayonne, N. Courtesy of Steuben Glass. While there is always hope that there are more PT's out there, we only have information on these. PT 78 foot Higgins is being used to restore PT The hell will go on static display with another mu eum. They intend to run her for a time and then make her a static display in Fredrick burg.

PT 80 foot Elco listed as a riverboat cruiser in Jacksonville. PT 80 foot Elco is being restored by Roger Radbill. Bill Bohmfalk, PT 80 foot Eko was rebuilt as "Sightseer" for daily sightseeing tour at Wildwood, PT 71 foot Annapolis is known as "Endeavor ew Jersey, PT 78 foot Higgins is named "Falcon" and reduced to 62 feet and 9 inches at Highlands, PT 78 foot Higgins was cut to 60 feet and used a an oyster boat at Tilgman, Maryland.

Commander John D. Bulkeley, Ihefalher of PT boals. As liewenwlI, he assumed command of quadron 3 sWI;oned in the Philippines. IT Boal Museum. Bow view of PT PT 9 was allocated to the Royal Canadian Navy. The other ten boats were modified to the Royal Navy's specifications. The modification included replacing the four trainable l8 inch torpedo tubes with two 21 inch fixed tubes.

The domes covering the two turrets were removed and a 20 m Oerlikon gun was installed at the stern. Depth charge track was added on both sides of the boat. The twin turrets were replaced with a single Vickers Mark V turret on the centerline of the coach roof. The 20 gun at the stern was retained.

Depth charge track was installed on either side of the boat. These boats were formed into the 15th MTS Flotilla. PT , Squadron 40, placed in service May 10, Assigned 10 the' Pacific Fleet. Test firing the twin. Courtesy of the PT Boal Museum. Courtesy of the Iyr Boat Museul Although each of the four boats had different characteristics, they all had aluminum hulls and were powered by four hp Packard engines.

Tesr firing all guns on board MTB Nore Dewandre rurrers wirh rwin. I 81 mm mortar in traverse mount. I Smoke generator. Courtesy of James B. The torpedoes were too slow and From that time until , Motor Torpedo Squadron I performed the boats often caught up and ran over them during high speed operational development and testing of these four boats at Norfolk.

During the trials the following findings were disclosed: I. PT In , PT was converted to use gas turbines which proved rough riding in seaway. PT 81 O's deck and cabin marked the first time a turbine engine was used in small craft in this arrangement were inefficient. PT proved to be the fastest country. After conversion, she had two 12 cylinder 60 degree V boat in calm water 55 knots and had the best deck and cabin lay- hp Packard IDT4 marine diesels with reversible pitch out.

PT was the slowest boat in calm water but fastest in propellers for maneuvering and two open cycle hp Metro- state [If sea and also the most seaworthy. Her low silhouette was politan Vickers gas turbines for main propulsion. Courtesy of the United Slales Navy. Motor Torpedo Boat Squadron I was decommissioned in after completion of sea trials to test the performance of the four boats. She is unarmed and her superstructure was modified to suit her new role.

In August, they were struck again and sunk as target. PT was struck in and was transferred to Korea in April, after removal of her gas turbines. She was ultimately scrapped in Model was builr by M,: Mark H. Courtesy of Mark H. Precision model oj PT , Vosper type. Kellnedy was all. Courtesy of the avel Ship Research and Development Center. Box , Birmillgham, M ill two differellt paillt schemes. Courtesy of Fine Art Models. Smallshaw from a Revell kit.

Courtesy of Howard Enterprises. Collrtesy of the John f. Kennedy Library. This jury rig is easier to assemble than the jury rig utilizing the locker door, but is not as satisfactory in heavy weather as the door and boat hook rig. A jury rudder for a motor torpedo boat with a damaged rudder is shown above, utilizing a life raft loaded and towed aft.

The towing line is fastened to the center of the transom. Transom is then rove between the Right-Lower drawing shows an emergency repair to a damaged boat hull. A tarpaulin is lashed to the boat's side by means of rope ties fore and aft! Emergency repairs of this kind will keep a boat afloat and enable the crew to reach a marine railway where permanent repairs, can be made. A broom handle may be used instead of a boat hook. This improvised In'ound tackle will hold a boat in the sofetest bottom during the hardest blow.

Left-Sketch showing the various steps in putting out two anchors. Postion 1 shows a motor torpedo boat riding to one anchor when the skipper decides that the second anchor is necessary. In position 2 after releasing more cable the starboard wheel is revolving ahead slowly. The boat steers to starboard as in position 3 to 4 and thence to 5 , when abeam of the first anchor the ,;econd is let go. The shaft slips along the shaft alley until the weight of the propeller holds the shaft against the upper part of the strut bearing.

On some occasions the shaft and the propeller are entirely lost, causing water to flow into the engine room through the shaft tunnel. Method of removing a damaged rudder. The same method can be used for re-installing a new or repaired rudder. Some naval combat motor boat operators have learned to use a gaB mask and an air pump on underwater repairs.

The lower drawmgs show the use of oil bags, both when underway and when stopped in the trough of a heavy sea. Whenever it is necessary to pull in the sea anchor, a yank on the trip line reverses the sea anchor, and towed by the small end of the cone, the anchor offers no further resistance. This drawing shows how a canvas oil bag IS made.

A grommet is inserted in the bottom of the cone of the bag. A wooden peg is used a. The peg is sent out before the bag IS put overboard. An easier form would be a simple bag with holes p. The oakum or waste holds the oil and it is released through the punched holes in the bag. A little oil goes a long way. It is long and narrow and nas a small vent-hole at the small end of the cone and a wooden ring. The upper sketch shows the bow of the boat riding to such a sea anchor.

The dotted line shows the same sea anchor being hauled inboard by the trip line. Sea anchors are very useful on any small boat in bad weather and should always be carried as standard equipment.

In the upper right-hand corner is a motor boat lying to sea anchor, first from the bow, and second from the stern. Some boats, especially those with a light freeboard forward, will not lay comfortably from the bow, but will lay with comfort from the stern. The lower left hand corner shows the situation with a crossed sea and oil bags on both sides. The lower right-hand corner shows a motor boat running from a bad sea with oil bags from the bow.

Right-The above sketch shows the use of oil bags, alone or combined with sea anchors. This is another type that is popular because Qf its ability to be easily stored. The iron rod should be heavy enough to submerge the sea anchor.

Left-The above sketch shows the Voss sea anchor, invented by Captain Voss, who sailed around the world in a ft. He frequently met with bad weather, and when he did he never attempted to fight the storm but would lay to his sea anchor. To make the anchor easier to store, VQSS used no wood or iron ring in the opening, such as used by Ametican and British sea anchors. He used tWQ crossed sticks to hold the mouth Qpen.

Wherever possible, the large end of a sea anchor should have a diameter of 1 inch for every foot of length of motor torpedo boat. This would take a 6-ft. A 6-ft. Higgins craft use a sea anchor with the ring hinged, enabling the anchor with a 6-ft.

The steering lines are brour;ht through blocks to the steering wheel on deck. How a jury rudder can be rigged on a motor torpedo boat after the boat rudder has been damaged or shot away in action.

A few yards of rope, a locker door, a boat hook and a heavy weight are the implements necessary. Tbe locker door is lashed to the boat hook by punching three holes in the upper and lower panels. In the upper left-hand corner the drawmg shows the Use of oil bags when a motor torpedo boat is under wayan a course Method of "tacking" by motor boat in heavy seas.

The desired course is north. The wind is blowing out of the northwest and heavy seas are running. To meet the crest of on-coming seas, the motor boat must temporarily head west northwest, returning to the original north course liS soon as the crest of the sea has passed on. A small hand tackle is attach. The all bag IS run out on this tackle: It can be brought. Left-In a bad storm or a hurricane a motor torpedo boat would be better uff to lay to a sea anchor than to attempt to keep under way.

Motor torpedo boat engines are designed for high speed. If no sea anchor is on board, one may be improvised by the use of locker panels and floor boards lashed in the form of a circular design. Then a hole may be knocked through the lower panel of a door, and a heavy weight, such as a discarded cylinder head, attached which will act as ballast to keep the woodwork submerged.

A marker float, such as an empty cask, water breaker, ring buoy, or life preserver, should be attached to the upper part of this improvised sea anchor to indicate its location.

In some cases, where the seas are exceptionally high and the water very shallow in the trough, the bow might strike the bottom and the breaking sea toss the boat over end for end. This is known as "pitch poling. Under such adverse conditions, the only safe means of entering such an inlet is by the aid of a sea anchor towed aft. The upper sketch shows a motor torpedo boat entering an inlet, towing a sea anchor by a trip line. In this position there is no resistance from the sea anchor. As the crest of a large breaking wave comes up under the stern of the motor boat, the trip line is released.

As the sea anchor fills with water, it holds the stem to right angles to the breaking sea, preventing the boat from broaching to. This is the pt model boat plans wooden free download woodworking plans and projects category of information. Elco pt boat plans rc boat plans free download simple pole barn house plans wooden rocking adirondack chair stitch and glue boat plans free the nice thing about drawing your design by doing so with pc and software program is you can try all sorts of designs and options until a person receive the exact one you enjoy and is the perfect scheme..

Pt boat plans free pole barn plans 16x24 pt boat plans free lean to carport plans with overhang green cabin plans washington state wood canoe rack timber frame cabin plans when operating a shed yourself, it is essential to receive the right storage shed plans. Pt boat plans free download: amazing boat plans to make your own boat easily watch now.

Post a Comment. Home Login. Related Posts by Categories.