New Simple, Easy-To-Use Hydrostatics Program From Concurrent Systems
Concurrent Systems, Arlington, Va., is releasing a new hydrostatics program for personal computers.
The Naval Architectural Problem Oriented Language (NAPOL) will perform the following calculations: hydrostatic curves of form; trim lines; longitudinal strength; floodable length; limiting drafts; damaged stability; damaged statical stability; intact stability; cross curves; intact stability in waves; and subdivision index.
According to Concurrent Systems, the program is simple to use.
An input file is made up of readable commands which can be understood by a naval architect who is not familiar with NAPOL. The hull is defined by station offsets and apendages.
The apendages themselves may be built from offsets, providing multiple hull capability. Compartments are bounded by the hull, bulkheads, decks or compartment offsets. Input and output can be in the units selected (American, Metric, or Imperial).
In addition to the textual output for each calculation, the following graphical outputs can be generated: body plan; isometric view; hydrostatic curves of form; longitudinal strength; and floodable length.
One unique calculation option available in this commercial package estimates the IMO subdivision index as laid out in the Department of Transportation document 46 CFR Ch.l "Dry Cargo Ship Subdivision and Damage Stability; Advance Notice of Proposed Rulemaking." This option calculates the subdivision index for compartment groups of up to four subdivisions and provides an accumulative subdivision contribution for a given draft.
To provide compatibility with the U.S. Navy program SHCP, there is an input translator and where possible the output is also formatted to look like SHCP.
The program runs on a PC, XT, AT, 386 or compatible and when available can take advantage of a math co-processor. Graphics can be produced in CGA high or low resolution or in EGA or Hercules modes.
For hardcopy graphics a range of plotters can be driven including those using HPGL.
NAPOL is available in two versions, with and without co-processor support. Priced at $225, this provides a personal computer program that outperforms many more expensive mainframe programs.
For additional information on NAPOL from Concurrent Systems, Circle 98 on Reader Service Card
Other stories from October 1989 issue
- HydroComp Offers New Ship Propulsion Design Software page: 6
- Rockwool Panel Systems Installed Aboard Fantasy —Literature Available page: 6
- Electrode Products Now Markets Full Range Of Metal-Coated Electrodes —Literature Available page: 8
- Seaworthy Systems Opens West Coast Branch Office In San Francisco Bay Area page: 8
- JJH Establishes Small Boat Engineering Department— J. Koelbel Named Director page: 9
- HHI Constructing Specialized RO/RO For United Baltic Corp. page: 9
- Astilleros Espanoles Delivers First Of Four Del Monte Reefers page: 11
- FISH EXPO '89 October 18-21, Seattle, Washington page: 12
- The Cost Of Lubricating Trunk Piston Engines page: 16
- IMODCO To Provide Petrobras With World's Deepest CALM Terminals page: 17
- EURO PORTt '89 page: 18
- Wartsila Diesel's Vasa 32 Sets A New Record: Passes The 1,000 Engine Milestone page: 20
- Marotta Scientific Controls Wins Aegis Shipbuilding Excellence Award page: 21
- William IN. Johnston, Former Head Of ABS page: 22
- McDermott Completes Deepest Pipelines In U.S. Waters page: 22
- Magnavox Multi-Channel Satcom For QE 2 page: 23
- Gladsky Marine Offers Large Crane Vessel For Lift Operations page: 24
- Hatch & Kirk Offers New Engine Parts For Older Diesels page: 24
- Gunter Waehling Named Henschel Vice President page: 25
- OSI Affiliated Companies Assume Management Of 2 U.S. Tug/Barge Vessels page: 25
- AT&T Radiotelephone Service Helps You Keep In Touch On The High Seas page: 26
- Jumbo Hopper Barge Launched By Jeffboat Is First Built Since Reopening For Construction page: 27
- COMPETITIVE YUGOSLAV SHIPYARDS AMONG THE WORLD'S LEADERS page: 28
- Consolidated Switchgear Established From Old 'Con-Select' Organization page: 31
- NAPVO Releases Safety Manual page: 32
- October '89/March '90 Liner Rates Announced By Military Sealift Command page: 32
- Renk Tacke Gear Units Chosen By German Navy For New F 123 Frigates page: 33
- $61,4-Million Contract Awarded Maersk Line By Military Sealift Command page: 33
- N e w Labor Agreement At MIL-Davie To Increase Shipyard Efficiency page: 36
- 'Speed Reducers And Your Bottom Line'—A N e w Free Brochure Offered By Falk page: 36
- Cummins-Powered Tender Serves Washington State's New Floating Bridge page: 37
- Lindenau Shipyard Delivers 12,100-DWT Chemical Tanker To West German Owners page: 38
- Third In New Series Of Navigational Satellites Launched Into Orbit page: 39
- Deck Machinery And Cargo-Handling Equipment page: 42
- Wilden Introduces Pumps Designed For Explosive, Hazardous Environments page: 48
- Furuno Introduces New Radar Lines—Opens East Coast Distribution Center page: 49
- Carnival's Newest Superliner, Luxurious 70,000-GRT Fantasy, Nears Completion At Wartsila Yard page: 49
- Halter Delivers Fourth Of Six Navy Ocean Surveillance Ships In Contract Valued At $85 Million page: 52
- $3.4 Million Awarded General Instrument For Spares/Support Equipment page: 53
- New Simple, Easy-To-Use Hydrostatics Program From Concurrent Systems page: 53
- Seatrade's Cruise Shipping '90 Conference & Exhibition Set For March 20-24 In Miami page: 56
- Blount Marine Launches First Dinner/Excursion Boat Of New Ultramodern Design page: 57
- Marco Completes Major Changes In Fishing Vessel 'Sea Wolf' page: 62
- Peterson Builders Realigns Management Staff page: 64