Leaf-Ship
Source: Skull and Crossbows — SJA2
[ Deckplans ]
Built By: Thri-kreen
Used Primarily By: Thri-kreen
Tonnage: 11
Cost: 8,250 gp
Hit Dice: 11d10+60 (120 hp)
Initiative: As the helmsman
Tactical Speed: 150 feet per TS of helm
Tactical Maneuverability: Average
Armor Class: 10 (–8 size, +8 natural)
Armament: 1 heavy catapult (Crew: 5), 4 heavy ballistas (Crew: 4 each). piercing ram
Ship Modification: Increased Armor (x1, equals +2 natural armor), Landing (water), Ram, Reinforced Frame, Sails
Crew: 4/25
Air Capacity: 1,232 man-days
Landing — Land: No
Landing — Water: Yes
Hardness: 3
    Material: Ceramic
Power Type: Major or Minor Helm
Cargo: ¼ ton
Keel Length: 250 feet
Beam Length: 40 feet

As its name implies, the thri-kreen Leaf-Ship resembles a long leaf. There are stations around the hull at which up to four Thorn-ships can be docked. The vessels are grown from living crystal, in a manner similar to elven ships. Their color is usually a delicate translucent green or yellow. The Leaf-ships are very resilient.
The design of the interior is slightly rounded. Ther are no 90 (degree symbol plugged here) corners, and no completely flat planes. Thri-kreen doors are articulated affairs rather similar to multi-leaved folding doors. Illumination comes from the walls, where light-producing organisms live within the crystal structure.

Thorn-Boat
Source: Skull and Crossbows — SJA2
[ Deckplans ]
Built By: Thri-kreen
Used Primarily By: Thri-kreen
Tonnage: ¾ ton
Cost: 563 gp
Hit Dice: ¾d10+30 (34 hp)
Initiative: As the helmsman
Tactical Speed: 150 feet per TS of helm
Tactical Maneuverability: Good
Armor Class: 16 (–2 size, +8 natural)
Armament: 1 Alchemist Fire Projector (Crew: 3), 1 light ballista (Crew: 1)
Ship Modification: Increased Armor (x1, equals +2 natural armor), Landing (land), Landing (water)
Crew: 1/5
Air Capacity: 84 man-days
Landing — Land: Yes
Landing — Water: Yes
Hardness: 3
Material: Ceramic
Power Type: Major or Minor Helm
Cargo: ¼ ton
Keel Length: 40 feet
Beam Length: 10 feet

The Thron-ship is a tiny open ship that acts as a screen vessal and fighter for the thri-kreen task force. It is very maneuverable, which partially makes up for its lack of resilience.
Thorn-ships carry 1 to 10 charges of greek fire. Thorn-ships will frequently make suicide runs against powerful enemy vessels, detonate their greek fire cache on or just before impact.


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©2002 Wizards of the Coast, Inc.

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Leaf and Thorn Ship, © 1990 Wizards of the Coast, Inc.
d20™ System, Conversion of Leaf and Thorn Ship ©2003, Mark T. Doolan
Image by Charles Zach Agnew