Hawaii Undersea Research Laboratory Archive

IN THE SCHOOL OF OCEAN AND EARTH SCIENCE AND TECHNOLOGY AT THE UNIVERSITY OF HAWAI'I AT MANOA

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VEH-16: Mack AC Bulldog Dump Truck

Historic photo: 1916 5.5t Mack AC dumper

Historic photo: 1916 Mack 7.5t AC hoist dumper

Historic photo: 1916 Mack Bulldog dump truck

Historic photo: 1919 Mack 7.5t AC hoist dumper

HURL Artifact No.	VEH-16	*Denotes approximations and speculations


Name:	Mack AC Bulldog	Lost:	Unknown
Artifact Type:	Dump Truck	Found:	10-Feb-2009
Nationality:	USA or Hawaiian	Dive No:	PIV-207
Class or Make:	Mack AC	Location:	Kewalo
Model:	7.5 Ton	Depth (m):	353m
Purpose:	Haul and dump aggregate materials	HURL crew:	Kerby, Kelley
Serial Number:	Unknown	Additional Dives:
Built/Launched:	1916-1924 (40,299)

Length:	*18
Width:	*8
Height:	*6



Circumstance of Loss:	Intentionally Disposed	Crew Personnel/Position:	1 Driver; (possibly 1 passenger)

Reason of Loss:	*Old age or failure	Crew Survivals/Fatalities:	n/a

Artifact History:	*Most likely involved in Oahu's road construction as it also lies within the region of the Tar Boiler, the Holt Caterpillars, and reports of a vintage steam-era road paver (location unrecorded). However it is possible that it may also have been used to haul coal for the inter-island steamships.

Artifact Condition:	The bed of this truck is decaying away in the middle. There are large pieces of dredge debris lying about on it. The truck is equipped with a hydraulic pulley hoist system for dumping it's load. Also present along it's side, back to the rear axel is the chain drive system. The vehicle cab is largely deteriorated. The spoked wheels were in use until 1924. There are twin sets of rear wheels. All wheels have hard rubber treads. There is a hinge on the rear bed for a dump gate.

Additional Information:	The Mack AC was affectionately nick-named the Bulldog by British troops in WWI for it's strength and unique front end. The company adopted it in 1922, but it didn't ride the hoods of their vehicles until 1932 although has ever since. Over 40,000 Mack AC's were built up until 1932, however the dump truck model, especially the pulley-hoist type were few.

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