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Why it works.
Steam in the top, compressed air out of the bottom. Dual action piston on top cycles automatically with a "Shortend Stroke" valve (that's the small rod in the center) to drive the main rod that compresses atmospheric air, intake from a filter, to a pressure vessel (tank) to maintain the brake line pressure. If the line is dumped, or slowly released, springs on each car in the train no longer hold the brakes away from the wheels, which apply the brakes until line pressure is restored, releasing the brakes by overcoming the springs. Each brake shoe is balanced in equilibrium with all the others, applying exactly the same dynamic pressure evenly along the entire train. There are many ways to compress air, this is the most common on steam locomotives.
Identical pumps can also be used to compress feed water into the boiler, so often there will be two compressors on the fireman's side of the engine. One to maintain the boiler water level and one to maintain the brake system air pressure.
Why not just use steam pressure? Steam pressure changes depending on the load of the locomotive and this isolates that variability. But more importantly, steam condenses into water when cooled, taking up less volume -decreasing the pressure - applying the brakes, and worse is the maintenance nightmare of water rusting the interior of the brake system parts. The moisture in the air, when compressed, precipitates out and is caught in the first pressure storage tank, which is why one finds a drain valve at the bottom of it.
Contact Christopher Cooke Listing Agent at 1-888 YACHT14 or 615-804-2612 for more information
Asking 1,175,000.00
Accommodations and Layout
Four staterooms, 3 heads, 2 galleys, 3 eating areas, large utility room and numerous options for sitting, lounging, or enjoying the scenery.
Entry is from boarding gates amidships on either port or starboard sides. Portside entry is into the galley. Starboard entry is into an open area leading either straight into the galley, forward to the day head and guest cabins, or aft to the salon, dining area, and master stateroom. Engine, utility, and storage room entry is immediately aft of the landing area upon entering the salon. From this landing area starboardside, stairs lead up to the pilothouse or aft to the expansive aft deck lounge. Sand Pebble offers warm ambiance in her subtle decor. High gloss teak and holly soles throughout, teak cabinetry and trim, natural and custom lighting, fresh ventilation, air conditioning compressors in every room, stand-up head room, generous room sizing, and good taste all lend to a comfortable and inviting home combined with the most seaworthy of ship design and systems.
Salon
Down two steps from the two amidship entry doors, the salon offers a large and comfortable area that is inviting for lounging or entertaining. The full beam salon has spatial division with an entertainment center, bookshelves, and leather couch and chair on the port side and a large dining area on starboard side. A passthrough from the galley makes casual service easy. Attention was given to natural lighting and ventilation. The salon and dining area promote a voluminous feeling of openness and comfort.
Phillips plasma TV
Sony DVD/CD player
Granite bookshelf and cabinet
Teak bookshelves
Coffee table
Custom teak dining table
Leather dinette seats 6
Teak and holly sole
(4) opening ports w/deadlight covers
Abundant stowage
Galley
The brilliantly designed galley assures good ventilation, ease of movement, safety while cooking underway, and all of the conveniences of home. The port and starboard teak dutch doors allow for plenty of fresh air in port or underway in good weather; watertight doors with viewing ports provide for safety ad security when desired. While this "main" galley is located main deck level amidships, there is an additional small galley on the aft lounge deck utilizing propane as a back-up. An additional freezer in the utility room and an entire storage room for provisions enable one to be at sea for many months without the need for island market shopping. There is a full complement of spare small appliances. Storage is abundant with deep cabinets, drawers, and ventilated pantry.
4 burner electric stove
Electric oven
Fisher Paykel SS regrigerator
Fisher Paykel SS freezer
Built-in microwave
Built-in toaster oven
Granite countertop
SS stove backsplash
Double SS sinks
Teak and holly sole
Master Stateroom
The oversized maser stateroom is a spacious suite consisting of a a walkaround bed, exorbitant stowage, large head, and a watertight door leading to an aft deck "patio" and swim platform. There is also a solid teak dutch door at the aft deck as well as a solid teak door at the forward entry to the stateroom. The ensuite head has marble vanity, stand-up shower with teak doors.This stateroom has large separation from the guest cabins and offers a private and luxurious enclave.
King size bed
Phillips DVD/CD AV system
(5) opening ports w/deadlights
Fresh air ports
Weems & Plath clock
Nightstands
Underbed stowage
Underbed mood lighting
Numerous hanging lockers
Numerous cabinets
Numerous drawers
Companionway
Forward of the starboardside entry at the galley is a companionway which houses the laundry center to starboard, guest/day head portside and leads to the 3 guest cabins and 3rd head. The VIP stateroom with queen bed is to port; starboardside guest stateroom has twin bunks and shares a head with the VIP stateroom; the guest cabin foreward has twin bunks and an ensuite head with shower. Each cabin has a large overhead opening hatch which allows for fresh air and natural light as well as serves as an emergency escape hatch. All cabins also have opening ports with deadlights and have individual air conditioning controls. High gloss teak and holly soles throughout.
Siemens washer/dryer
Pantry, cabinets. and stowage
Freshwater Jabsco head
Stand-up shower
Marble countertop
VIP Stateroom
Portside. Roomy and comfortable with good lighting and ventilation.
Queen bed (tapered)
Night stand
Overhead lights
Reading lights
Hanging locker
Drawers
Guest Stateroom
Starboardside. A generous cabin that is warm and comfortable.
Twin over/under berths
Storage cabinet w/ Corian counter
Overhead lights
Reading lights
Hanging locker
Drawers
Forward Stateroom
Foreward cabin serves as a guest cabin or is ideal for crew. Watertight door, collision bulkhead, and lockdown portlights make this entire area a watertight compartment.
Twin over/under berths
Desk/vanity
Overhead lights
Reading lights
Hanging locker
Drawers
Freshwater Jabsco head
Marble countertop
Shower
Utility Room
At the starboard entry into the vessel, from the starboardside of the salon is a soundproof full height door that opens to wide staircase leading to the watertight lead lined utility room and engine room. The utility room is full beam and houses a work station, night generator, cold plate interchangeable refrigerator and freezer, watermaker, and additional equipment. Forward of the utility room through a watertight door is a large storage room with built-in shelves and generous area for bulk storage.
Glycol holding plate refrigerator
Glycol holding plate freezer
850 gpd Watermaker w/ auto backflush (30hrs)
UV water sterilizer
Engine Room
Watertight door aft from the utility room opens to a large, well finished, bright, self-ventilating engine room. The John Deere engines were the last series of mechanical (not electronic) made in the US. The vessel is designed to run off either engine or both. Cruise speed on either continuous duty John Deere is approximately 8.2-8.4 knots. Cruise while running on both engines is 9.2. The difference in fuel consumption is 4.7gph vs 9.4gph at 1800 rpm.. There is twin disc transmission; 2:1 reduction gear. A cooling pump on each engine allows continuous cooling to the off engine. The engines are 20 degrees off centerline that that the handling of the vessel is not compromised while running on a single engine.
Special consideration was given to systems like the air condition and refrigeration. They are operated by continuous duty pool pumps and there are 2 for redundancy. Forethought allows for such things as engine removal with large hatches opening to the master stateroom. The holding tank is a "septic" system holding 250-300 internally macerated gallons and not requiring vents (eliminating odors), but additionally has pumpout capability.
Generous spare parts for engines and gensets including raw water pumps, impellers, zincs.
(2) John Deere 225hp engines (1630 hrs)
AirSeps
Aqualift muffler
Sea Chest
600 gal day tank
Gulf fuel filtration system
Fuel transfer system
2:1 reduction gear
(5) Mermaid reverse cycle AC compressors (7 handlers) + 2 additional compressors
hot water tank (20) gal
Electrical
50 & 60 hz;12 volt house system.
Northern Lights 20kW generator (690 hrs)
Kohler 10kW generator (130hrs)
Heart 2500w inverter
Heart Link interface 2000
4 AGM 250amp house batteries (6/07)
2 AGM 250 amp starting batteries ( 6/07)
AGM 250 amp bow thruster battery (6/07)
Isolation transformer
Ground fault circuit interrupter
Red night lighting at all stairs
Pilothouse
The pilothouse has numerous windows for visibilty and fresh air ventilation. Situated amidships, the pilothouse is accessed from the starboardside main entry, salon, or galley by way of a curved staircase or from a curved staircase from the lower aft deck through the lounge aft deck through a sliding door.
Hydraulic steering
Side Power24 hp bowthruster
Gauge package
FloScan
Raymarine 4kW 24 mi Radar/chartplotter
(2) color screens
C-Maps
AutoNav autopilot
Raymarine Fishfinder
Raymarine GPS
Garmin GPS
Icom VHF M27
Icom SSB M802
Icom VHF handheld
Airchine Signal control
Compaq computer
Acer monitor (new 5/08)
HP printer/fax
EPIRB
Todd helmseat
Leather (real) settee for 4
Leather pilot's berth
Day and night lighting
(4) opening windows
Window defrosters and wipers
Chart table
Chart drawers
Generous stowage
Lilliput Engine room camera
Weems & Plath Clock
Weems & Plath Barometer
Upper Deck/Lounge
Access is from the sliding door to the pilothouse or from the staircase from the aft deck/swim platform. This area, whether for guest entertaining or family use, is surely the focal point in the yacht's exceptional offerings. While the galley serves as a redundant system to the main galley, it offers practical service for alfresco dining. Whether for breakfast watching the sunrise or cocktails at sunset, this area can be used for eating, lounging, or sightseeing purposes. Incredible vantage point, relaxing secluded atmosphere.
Built-in seating for 8-10
Finely crafted teak board shade overhang
High gloss custom teak & holly dinibg table
Overhead lighting
Canvas drop-down curtains
(2) lounge chairs
(3) propane tanks
Microwave
SS sink
Corian countertop
2 burner propane stove
Propane grill
Refrigerator
Cabinets, drawers, stowage
Kitchen service
Sony DVD/CD player
Decks & Hull
Four watertight bulkheads, all main doors are watertight. Portuguese bridge. The spacious foredeck has access to the pilothouse or to the port and starboardside entry doors at the galley. The steel hull (marine grade) is zinc plated. She has an incredible yacht finish due to epoxy fairing, spray painting with a mixture of flat and semi-gloss International paint, sanding, repainting with International, and finally Awlgripped in Wheat color, finished off with a protective clear coat. Stainless steel plating from below the waterline over the bulbous bow to several feet above protects the hull from debris damage. The shaft is steel encased, rudders are skeg protected. Upper deck is for dinghy storage, radar mast, and antennae. The aft deck is accessed from the master stateroom through a teak dutch door or watertight door or from the swim platform. Stairs lead to the upper deck/lounge.
(5) Integral fuel tanks
(4) cross ventilation vents
lightning rod bonded
Remote searchlight
Muir windlass
400' chain
(2) 160lb anchors
(2) SS anchor plates
11' RBI dinghy
Yamaha 15 hp engine (30 hrs)
(2) electric dinghy davits w/ spare motors
Deck boxes
Oversized chocks
Lazarette
8 man life raft
Sunbrella window screens
Sunbrella window covers
Additional Comments
M/V Sand Pebble is 55x20 but her voluminous interior space belies her small ship capabilities. The seakeeping ability of this vessel has been proven in her 25,000 miles of South Pacific cruising. With the knowledge and experience of decades of sailing, the owners were able to customize a proven design for all world cruising comforts. The owners having been professionally in the furniture building business resulted in fine teak cabinetry and joinery including rounded corners and edges and enabled them to add aesthetics and practical design to their bluewater ship. M/V Sand Pebble recently arrived from the South Pacific via Transport ship for the purpose of sale. She is in excellent condition and would be near impossible to replicate; however, duplication in a larger sistership is what the owners plan to do upon sale of their beloved yacht. M/V Sand Pebble is ready to go - anywhere!
North Central Pennsylvania has undergone some major changes since I moved to North Carolina in 2000. Natural gas is being drilled from the Marcellus Formation. These buildings house some loud compressors.
Dental Air Compressor $1800
: 7 in stockwww.estradadental.com
estradadentalsupply@yahoo.com
Ask for Gabriel
I got the pump from ebay and bought the motor from a customer. I got the relay to start and run the motor from ebay for about 1/10 of the new price. I made the holder and belt setup. It has axles for wheels to move it around.
I am going to use this one and my original to fill my tank which is a former 30 gallon water tank.