The original four 15 Class locos:
Consulting Engineers specifications
	RR_15th_class_specification.pdf		  				10.8 MB

Cracks in boiler frames on 15th class locos:
	Boiler_frame_stresses.pdf							 7.5 MB
	Modification_to_ boiler _frames.pdf			 		 0.6 MB

Use of bursting disks as cylinder relief valves:
	Cylinder_relief_bursting_disks.pdf						 2.6 MB

Complete list of drawings for 15th Class locos (and others where components are common):
	15th_class_garratt_drawing_list.pdf			     		 0.4 MB

Engine Alteration Instructions:
	Modifications to front cylinder covers		EAI-6-48.pdf		 0.4 MB
	Removing snifting valves on hind engines		EAI-253-52.pdf"	 0.4 MB
	Removing mixing cones from clackboxes		EAI-493-55.pdf	 0.5 MB
	Fitting modified rings to piston valves		EAI-696-57.pdf	 0.7 MB
	Fitting modified steam pipe elbows in smokebox	EAI-751-58.pdf	 0.4 MB
	Fitting distributing nozzles to clackboxes	EAI-872-59.pdf	 0.4 MB
	Fitting multiple jet blast pipe & chimney		EAI-1134-69.pdf	 0.9 MB
	Modification to cylinder relief valves		EAI-1166-81.pdf	 0.7 MB

Various diagrams and lists:
	Rhodesia Railways loading˙gauge	NRZ Fixed structure gauge.pdf	 0.2 MB
	Index to locomotives and cranes	Locomotive & crane index.pdf	 1.7 MB
	Basic dimensions of locomotives	Locomotive dimensions.pdf		 1.8 MB
	Locomotive diagrams.			Locomotive diagrams.pdf		17.5 MB

Various material and component specifications:
	Automatic couplers			Spec for automatic couplers.pdf"˙	 1.5 MB
	Axles					Spec for axles.pdf			 0.6 MB
	Tyres					Spec for tyres.pdf			 0.5 MB
	Boiler plates				Spec for boiler plate.pdf		 1.6 MB
	Steel for stays			Spec for stay steel.pdf		 0.5 MB
	Steel rivets				Spec for steel rivets.pdf		 0.4 MB