Archive for the ‘1/6000 Battles’ Category

Bay of Algiers, 1914, Again

April 15, 2017

This weekend the local HMGS-South group played a WWI naval game using a modified version of a scenario tested previously.

This fleet action is based on the Triple Alliance naval convention of 1913, as described in “The Great War at Sea” by Sondhaus. The plan was for the Italian and Austro-Hungarian fleets and any German ships in the Mediterranean to engage the French Fleet and block the Algerian troop transports. This scenario assumes that the war starts in February 1914, and that the British Mediterranean squadron joins the French.

The confrontation occurs north of the Bay of Algiers.

Visibility 18,000 yards. Wind NNW at 3 knots. Seastate 1

Status at the end of the game: alg2 io

Damage output file: alg2-output

Plot of ship movements:
0 to 20 minutes alg plot 0-20
20 to 40 minutes alg plot 20-40
40 to 55 minutes alg plot 40-55
55 to 70 minutes alg plot 55-70
full plot alg plot all

Computer code (described here)

The French had more undamaged ships when we quit, so the troop transports should be safe.

WW1 Naval – Churchill’s Idea

January 28, 2017

This weekend the local HMGS-South group played a World War One naval game based on this March 9th 1915 memo (item 121 Jellicoe Papers) from the 1st Lord of the Admiralty. The idea was to send a fast division into the Baltic Sea and, in cooperation with the Russian fleet, blockade German ports. The Germans send the ships that were in the Baltic for training exercises.

The confrontation occurs off Aarhus, Denmark: aarhus-10nm-grid

Status at the end of the game: io

Damage output file: chur-output

Plot of ship movements:
First 25 minutes: chur-plot-1-25
Last 25 minutes: chur-plot-25-50
Entire plot: chur-plot

Computer code (described here)

Coronel and the Falklands

October 19, 2016

The book “Fatal Choices, Wargames, Decisions and Destiny in the 1914 Battles of Coronel and Falklands” by Seth Owen includes historical and non-historical wargame scenarios associated with the cruise of the German East Asia Squadron. Several of these were played as solo exercises using this computer code. The code is not intended for small scale actions. The main drawback in using it is that orders can only be changed every 5 minutes. Using the options for automatic target selection and opening fire mitigates this to some extent.

The Battle of Cocos

The fight between the Sydney and the Emden. The damage the Sydney sustained seems to be more than in the actual battle.

Status at the end of the game: cocos-io-10-10

Damage output file: cocos-output

Plot of ship movements: cocos-plot-10-10

The Battle of Samoa

A hypothetical battle between an Australian squadron including the battlecruiser Australia and von Spee’s squadron. The Australia takes significant damage. The Gneisenau runs out of 21 cm shells (her primary battery), in part because while the Australia was firing at Scharnhorst, Gneisenau could keep up a higher rate of fire. According to the NAVWEAPS site, the Scharnhorst class had 87.5 rounds per 21 cm gun.

Status at the end of the game: samoa-io

Damage output file: samoa-output

Plot of ship movements: samoa-plot

The Battle of Coronel

The historical battle between Cradock’s squadron and von Spee’s squadron. The Scharnhorst runs out of 21 cm shells and the Gneisenau nearly runs out. This may be because the range was generally longer than in the actual battle, or because the penalties on rate of fire for poor visibility are not severe enough.

Status at the end of the game: coronel-io

Damage output file: coronel-results

Plot of ship movements: coronel-plot

The Battle with Canopus

The fight between the pre-dreadnought battleship Canopus and the armored cruisers Scharnhorst and Gneisenau. Both armored cruisers ran out of 21 cm shells and the Canopus was finished off with the 15 cm secondary batteries. Torpedoes may have been a better choice. If this encounter had occurred historically, low ammunition after the Coronel battle would probably have caused von Spee to avoid Canopus.

Status at the end of the game: canopus-io

Damage output file: canopus-output

Plot of ship movements: canopus-plot

The Battle of Coronel including HMS Defence

A battle between Cradock’s squadron, reinforced by the armored cruiser Defence, and von Spee’s squadron. This is a lot closer fight than the actual battle. With Scharnhorst sunk and Gneisenau out of 21 cm shells, von Spee’s squadron would probably break up into individual raiders.

Status at the end of the game: defence-io

Damage output file: defence-output

Plot of ship movements: defence-plot

The Battle of the Falklands

The historical battle between Sturdee’s battlecruisers and von Spee’s armored cruisers. The battlecruisers took more damage than in the actual battle, possibly because von Spee’s armored cruisers did not try to run.

Status at the end of the game: falklands-io

Damage output file: falklands-output

Plot of ship movements: falklands-plot

The Battle of Stanley

A hypothetical battle between Sturdee’s  squadron and von Spee’s squadron, assuming that von Spee attacks before Sturdee is underway. The scenario in the book started with the Gneisenau and the Nurnberg approaching Stanley and the rest of von Spee’s squadron 15 nautical miles away. To give von Spee more of a chance, this exercise assumes that he approached with his squadron together. Timings for Sturdee’s ships getting underway are from Corbett, not from Owen’s book.

Status at the end of the game: stanley-io

Damage output file: stanley-output

Plot of ship movements: stanley-plot (the outlines of Stanley harbor and Port William are not shown on the plot, but were used for the game)

Initial positions showing coastlines: stanley-coastlines

Updated plot with shorelines: stanley-plot-shorelines

 

 

Jutland 100th Anniversary – Windy Corner

May 31, 2016

For the 100th anniversary of the battle of Jutland, the positions of the fleets at about 6 pm were set up, and various options for the deployment of the Grand Fleet were discussed.

No formal game was attempted since it would have taken more time than was available, but the capital ships were run through the deployment with automated targeting while we talked. The light forces were mostly ignored, but several torpedo attacks occurred anyway due to the initial courses. Since the German fleet did not turn away, the damage was much greater than historically. The poor visibility, particularly toward the north and east, allowed several devastating torpedo attacks.

Scale: 1/6000 miniatures, 500 yards/in ground scale.

Computer code (described here).

Status at the end of the game: IO Windy

Damage output file: Windy output

Plot of ship movements: sk-plot-Windy

 

WWI Naval – Gulf of Finland

February 13, 2016

This weekend the local HMGS-South group played a WWI naval battle. In this hypothetical engagement, the Germans send a portion of the High Seas Fleet into the Gulf of Finland in an attempt to engage and destroy the Russian Baltic Fleet. The date is March 15, 1915. The scenario is similar to a previous test.

Scale: 1/6000 miniatures, 500 yards/in ground scale.

Rules: Computer code (described here).

Visibility 16,000 yards. Wind southerly at 8 knots. Seastate 2.

Status at the end of the game: Fin2-end-status

Damage output file: SK-Normal-Fin2-2016-1-23 excerpt.txt

Plot of ship movements:
All Fin2-plot-all
First 20 minutes Fin2-plot-1to20
20 minutes to 40 minutes Fin2-plot-20to40
40 minutes to end Fin2-plot-40toend

We quit at this point due to time. The damage was relatively even. The Russian destroyers and torpedo boats and the German light cruisers did most of the fighting. One dreadnought had been sunk on each side.

WWI Naval Battle – Bay of Algiers, 1914

February 12, 2015

This fleet action is based on the Triple Alliance naval convention of 1913, as described in “The Great War at Sea” by Sondhaus. The plan was for the Italian and Austro-Hungarian fleets and any German ships in the Mediterranean to engage the French Fleet and block the Algerian troop transports. This scenario assumes that the war starts in February 1914, and that the British Mediterranean squadron joins the French.

Due to the generally longer ranges of the Triple Alliance guns, the French and British ships were under fire and unable to respond for the first few turns. Both sides had difficulty forming coherent battle lines due to the wide variation in ship speeds and capabilities. The Goeben and Dante Alighieri eventually destroyed the three British battlecruisers. Based on the situation when we quit, the French Algerian troops could be very late arriving in France.

Scale: 1/6000 miniatures, 500 yards/in ground scale.

Rules: Computer code in development.

Visibility 24,000 yards. Wind northwesterly at 6 knots. Seastate 2.

Status at the end of the game: Alg status

Damage output file: Alg-out

Plot of ship movements: Alg-plot

WWI Naval Battle – North Sea January 1915

February 4, 2015

This fleet action is based on the low point of Grand Fleet numerical superiority over the High Seas Fleet, as described in Massie, Robert K., “Castles of Steel,” Chapter 20, page 372. Based on the results of the Dogger Bank scenario played earlier, the opposing battle cruisers are still under repair.

Scale: 1/6000 miniatures, 500 yards/in ground scale.

Rules: Computer code in development.

Visibility 12,000 yards. Wind southwesterly at 24 knots. Seastate 4.

Status at the end of the game: NS15status

Damage output file: NS15-output

Plot of ship movements:
First 40 minutes NS15plot1-40
40-50 minutes NS15plot40-50
50-60 minutes NS15plot50-60
60-70 minutes NS15plot60-70

 

WWI Naval Battle – Dogger Bank

January 15, 2015

This Dogger Bank scenario starts at 7:20 am January 24th, 1915, just after the initial contacts.

Scale: 1/6000 miniatures, 500 yards/in ground scale.

Rules: Computer code in development.

Visibility 22,000 yards. Wind east by north at 10 knots. Seastate 1.

Status at the end of the game: dogger-status

Damage output file: Dogger-out

Plot of ship movements:
First 40 minutes Dogger-plot-1-40 
Last 35 minutes Dogger-plot-40-end

Rather than trying to escape to the southeast, the Germans decide to fight it out. [It would not be much of a game otherwise.] They maneuver to close the range while keeping their guns bearing and avoiding smoke obstruction. Although the gunnery duel is about even, the larger force of British cruisers and destroyers would probably prevent the heavily damaged German battle cruisers from reaching port.

WWI Naval Battle – Horn Reef, November 1914

January 8, 2015

The portions of the Grand and High Seas fleets that were not involved in the Kattegat battle had their own action at the same time. The British 1st and 4th Battle Squadrons, providing distant cover for the Kattegat force, are engaged by the newer German dreadnoughts steaming north from the Jade (Battle Squadron III and Scouting Group I).

Scale: 1/6000 miniatures, 500 yards/in ground scale.

Rules: Computer code in development.

Visibility 20,000 yards. Wind westerly at 12 knots. Seastate 3.

Status at the end of the game: Sk Horn status

Damage output file: SK-horn-hits

Plot of ship movements: First 35 minutes sk-plot-horn-1-35
Last 35 minutes sk-plot-horn-35-end

Map:

WWI Naval Battle – Kattegat, November 1914

November 19, 2014

This is the second in a series of hypothetical battles based on the implementation of the strategy suggested by Wolfgang Wegener (“The Naval Strategy of the World War“). For a brief description of the Wegener Thesis, see this article.

After taking the Jutland peninsula, the Germans establish a naval base at Frederikshavn. The British send the battle cruisers remaining operational from the previous battle and a supporting battle squadron into the Kattegat to disrupt German mining efforts.

Scale: 1/6000 miniatures, 500 yards/in ground scale.

Rules: Computer code in development.

Visibility 21,000 yards. Wind westerly at 8 knots. Seastate 2.

Status at the end of the game: Kat-status

Damage output file: Kat-output

Plot of ship movements: Kat-plot

Map: Kattegat – Skagen 10NM Grid