Queen's Own Scale Model Warship Club

SHIP CONSTRUCTION

CONSTRUCTION PERIOD

1. All 1/72nd Scale vessels are to be military vessels.

2. The time period modeled is 1900 through 1945.

3. The criteria for determining ship eligibility is that one ship of the class must
have been in active service after 1900 or launched by December 31, 1945.

HULL, FRAMES and KEEL
1. Frames may be no thicker than 3/8 inch.

2. Frame spacing must not average closer than 3 inch center to center with 3/8
inch frames.

3. Frame spacing must not average closer than 2 inch center to center with 1/4
inch frames.

4. Frame spacing must not average closer than 1 inch center to center with 1/8
inch frames.

NOTE:To find proper number of frames and correct spacing divide the
ship length by the center to center data shown above.

5. Hulls may contain one solid transverse frame located anywhere in the ship.

6. The use of one double thickness frame is allowed if the model is to be
separated at that point.

7. The area between the bow of the ship and the first frame may be solid.

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QUEEN’S QWN 2003
Publication date 31 January 2003

Queen's Own Scale Model Warship Club

HULL BOTTOM and HARD BOTTOM LINE

1. Hull bottoms may be reinforced from the keel to a point up to 1/2 inch below
the Light Ship Water Line (bottom of the boot).

2.The hard bottom may be raised if necessary in the stern for shell plating
attachment, however it may not rise above the Design Water Line (usually one
half way up boot).

SHELL PLATING

(sheeting on hull)

1. All shell plating shall be balsa wood only.

2. Ships of the 721 class are allowed1/32 inch balsa.

3. Ships of 722 to 725 class are allowed 1/16 inch balsa.

4. Ships of the 725a and 726 classes are allowed 1/8 inch balsa.

5. The lamination of balsa wood for shell plating is not allowed.

6. To the maximum extent possible all equipment or fittings inside the hull
should be located at least 1/4inch away from the shell plating.

MAIN DECK and SUBDECK

1. Main Deck and Subdeck thickness must not exceed 3/8inch total thickness.

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QUEEN’S QWN 2003
Publication date 31 January 2003

Queen's Own Scale Model Warship Club

HULL GENERAL

1. All hulls must comply with the following:
a. Must have the correct number of propellersand rudders in their correct
location.
b. Rudders may be 25% oversize.
c. Propellers may be 50% oversize.
d. Bilge Keels need not be installed.

e. May not float deeper than the maximum displacement water line (top of
the boot).
f. Superstructure area on Aircraft Carriers (area above main deck) must
contain openings (ie hanger deck doors, elevator openings) and not
constructed in such a way to inhibit sinking.

2. If the boot information for any particular ship can not be found the builder
should use the known dimensions from a similar ship of the same relative
tonnage.

PAINTING

All ships must be painted in a realistic color scheme. Camouflage may be used as long
as it is of the type, pattern and color used during the period in which the ship is
configured.

1. Hulls must not be painted in such a way as to increase their hardness.

2. Hulls may be covered with one layer of any grade Silkspan to reduce splitting.

SUPERSTRUCTURE

The superstructure will not be scored, so it may be constructed of any material. This
does not relive the builder of the requirement to conform to fidelity of scale.

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QUEEN’S QWN 2003
Publication date 31 January 2003

Queen's Own Scale Model Warship Club

OUTFITTING ITEMS

1. Ship outfitting items are not scored and may be constructed of any material.

2. Intricate items such as caged masts, depth charge racks and alike are not
scored may be constructed of material.

3. All ship outfitting larger than 3/4 inch in 1/72nd scale (4.5 feet actual) must be
installed on the ship. However a representitive number of (no less than 50%) of
bitts, chocks, cleats, capstans, doors, hatches, scuttles are required.

4. Port holes may be painted on. Anti aircraft guns smaller than 20mm are not
required, however all gun shields and mounting locations are. Accurate ships
rigging is not required, but a representative number of halliards, lines and
cabling is. Life lines are not required.

BALLISTIC PROTECTION

1. The use of ballistic protection around delicate equipment in the hull is
encouraged.

2. Use of internal armor or soft material to prevent shot exit damage is allowed.

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QUEEN’S QWN 2003
Publication date 31 January 2003

Queen's Own Scale Model Warship Club

ARMAMENT

1. Only primary guns can be armed.

2. Prototype weapon vs projectile size (Gun size will be rounded off to nearest
inch).
3 inch- 7 inch = 3/16 inch

8 inch- 20 inch = 1/4 inch

NOTE: The basic gun barrel length calculation is Bore x Caliber.
5 inch x 38 Cal 5x38 = 190 inches
1/72nd scale 190 divided by 72 = 2.6389 inches

3. Gun barrel length showingmust not exceed scale by more than 15%.

4. Aircraft Carrier 1/4 inch guns are allowed no depression.

5. To enhance scale appearance hidden fixed guns are allowed under the
following conditions.

a. May be mounted off to the side of the scale weapon only far enough to
allow the shot to clear the weapon.

b. May not be mounted in such a manner as to increase the arc of fire or as
an attempt to gain any type of tactical advantage.

c. 1/4 inch flight deck guns on aircraft carriers must be mounted to the
underside of the flightdeck firing forward. Barrel length is not specified.
Ammunition allotment is three rounds per aircraft carried.

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QUEEN’S QWN 2003
Publication date 31 January 2003