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1

Saturday, June 16th 2007, 2:18pm

SpringSharp 3.0 beta 2 Released

Change log from SS3.0b1 to SS3.0b2 -- Comma Decimal users take special note of the first point

New
" Support for reading files from Dot decimal countries on Comma decimal computers and vice-versa. Note only works with Version 3 files saved after 3.0b1. People using 3.0b1 files who use Comma decimal format should change the first line of all their 3.0b1 files before loading them with 3.0b2 from
SpringSharp Version 3.0
to
SpringSharp Version 3,0

" Allows selection of different armour deck layout options instead of requiring entry of average armour thickness over all waterline area. These include allowing for different thicknesses (including no armour) over the forecastle and quarterdeck or protection for just the engines and/or magazines. Weight calculation responds to armour deck layout choices.
" Weapon event handlers enabling the second bank of torpedoes (Mines and ASW weapons to follow.
" Clickable text panels replaced by buttons. These buttons cover the unselected optional entry boxes for entering overall length instead of waterline length, Normal Displacement instead of Block coefficient shell weight in Kg instead of lbs. Clicking on the button selects the alternative and moves the button to cover the original selection. Text on the button shows the alternatives current value.
" The button for switching between entering shell weight by Kg or lbs also allows for the shell weight to be locked so that the shell weight does not recalculate whenever a related input changes (eg Calibre length, date etc). It still does the integrity check in case the shell weight is far too light or heavy.
" Allows entry of non-armour / non-structural void or bulge weight (included in misc weight). For example the weight of all the pipes inside the HMS Hoods bulge.
" The hull depth (freeboard + draught) can be locked so that modifications that change the draught will also change the freeboard.
" Allows entries for 2nd torpedo, mines and ASW weapons, weight calculations for the last two coming.
" Allows entry for a 2nd Control Tower and adds its weight to the total CT weight.
" Calculates different effects for small vs. large transom sterns.
" Calculates different waterplane areas for small vs. large transom sterns.
" Torpedo mount deck area or hull space based on location in drop down list. SpringStyle calculations replaced by actual size based on calibre and length.
" Torpedo weights estimated from calibre, length and date.

Improved
" No longer forgets the number of gun mounts in the second group when loading from data file
" The effect of a transom stern has been temporarily fixed so that it increases fuel consumption below 20 knots and improves it above. It currently uses a fixed effect above 25 knots and below 15 knots with a linear transition between 15 and 25 knots. This will be replaced by the Holtrop-Mennan resistance model later.
" Gun descriptions in reports are on whole identical to text in drop down selection boxes.
" Changing the number of gun mounts now updates the layout description of Gun Group 2 if necessary.
" Improved object orientation for the gun control. This has temporarily reduced the feedback through the status bar, which will return in 3.0b3.
" The error in the shell weight where the weight in lbs was the same as in kg in 3.0b1 has been corrected.
" The engine choice checkbox error and description error have both been fixed.
" Waterplane area coefficient formulas improved so that they
o Never exceed 1.00,
o Never reach a turning point before the block coefficient is 0.30, and
o A single screw hull has a waterplane area that is always less than or equal to a multi screw hull at the same block coefficient.
" Bulkhead width formula improved by being based on Waterplane area coefficient improving belt weight calculations and allowing for forecastle and quarter deck armour deck weight calculations.
" Bulge armour weight now calculated.
" Stability calculation takes into account miscellaneous weight below the waterline (in vital space, voids and bulges.
" Creates Armament title in report when there are no guns if there are torpedoes.
" Corrected the weight of guns in the 5th battery borne by the hull to match the calculation for the other 4 batteries.
" Weight distribution table adds up to Normal displacement and 100% again.

Ian

www.springsharp.com

2

Saturday, June 16th 2007, 2:28pm

Oooooh, looks good! <Hrolf runs off to download.....>

3

Saturday, June 16th 2007, 2:46pm

Interesting...... The changes in effects of transom sterns will, at least for some ships, push the cruiser stern back into service. A design I was playing with for a 28 knot BB showed a small but noticeable gain in strength with a cruiser, vs a transom, stern. I suspect it's because of the changes in cruising speed fuel consumption.

4

Saturday, June 16th 2007, 3:30pm

Excellent. Everything looks good after having a little play around.

Quoted

Allows entries for 2nd torpedo, mines and ASW weapons, weight calculations for the last two coming.


For the depth charge racks and mine rails the weight will be more or less the weight of the charges/mines + a bit extra for the actual rails. Maybe a modifier of x1.1? Maybe deck strengthening needed for the mines?

A standard RN asdic set of the period weighed 9tons (A-I classes). I'd assume this weight figure to rise with date. For an ASW mortar things get a bit hard to quantify. I've only found weight for Squid as 35tons complete, but nothing for other mountings as a comparison. Maybe look at land mortars for comparison?

5

Saturday, June 16th 2007, 3:42pm

The weight of a twin Mk 10/11 Hedgehog launcher and 6 sets of reloads is given as just under 14.4 tons (NavWeaps). The post-WWII Mk 15 Hedgehog launcher weighed 8.75 tons for the mounting itself and 13.4 tons with ammunition, per same site (under the US entries).

This post has been edited 2 times, last edit by "Hrolf Hakonson" (Jun 17th 2007, 1:36pm)


6

Saturday, June 16th 2007, 8:38pm

The download link is broken

Quoted

The requested URL /SpringSharp-3-Beta1-Feb2007.zip was not found on this server.

7

Sunday, June 17th 2007, 3:28am

Link Fixed

Oops

8

Sunday, June 17th 2007, 3:52am

Thank you most kindly. :)

9

Sunday, June 17th 2007, 4:17am

Thanks for the update Ian! I might acctually toy with the beta now!

HoOmAn

Keeper of the Sacred Block Coefficient

  • Send private message

10

Monday, June 18th 2007, 1:26pm

dot/comma

Hi Ian,

there still seems to be a problem with dot and comaa on the weapons page regarding shell weight.

In general I noticed that loading a SSv2 design with SSv3beta2 leads to problems. For example the hull, which was saved using metrics, turned out to have a beam of 13.5m instead of 13,5m and when hitting the all metric button it changed to 135m. Dito for other values like freeboard etc.

11

Sunday, June 24th 2007, 2:40am

Decimal Commas Quickfix

I have sent a quick fix (SS3.0b2a) to Ho0mAn. This which will load SS2 files saved on decimal comma computers without converting them.

Once proved this will be uploaded ASAP with little other change:
- Torpedo weight calc to add mount weight (+25% for rotating, +10% for fixed)
- Torpedo scale to specify that when diameter is in inches length is in feet and metres for millimetres

Ian

www.springsharp.com

HoOmAn

Keeper of the Sacred Block Coefficient

  • Send private message

12

Sunday, June 24th 2007, 12:19pm

Send you an email in return. The file won&acute;t work.... :(