Orion I

Orion I
Orion I
	; Orion I buses; Top: Original production (round headlights); Bottom: Late production (square headlights)
Overview
Manufacturer	Ontario Bus Industries
Production	1978–1993
Assembly	Mississauga, Ontario; Oriskany, New York;
Body and chassis
Class	Transit bus
Body style	Monocoque, all-welded steel frame
Layout	RR
Powertrain
Engine	DD 6V53; DD 6V71/6V71N/6V71TA; DD 6V92TA; Cummins L10/L10G; ;
Transmission	Allison MT643;
Dimensions
Wheelbase	180 in (4.57 m) (30');
Length	over bumpers:; 376 in (9.6 m) (30'); 437 in (11.1 m) (35');
Width	96 in (2.44 m) [30' or 35']
Height	114 in (2.90 m)
Curb weight	19,250 lb (8,700 kg) (30'); 20,500 lb (9,300 kg) (35');
Chronology
Successor	Orion V; Orion VI;

The Orion I was a line of rigid high-floor transit buses made in 30-, 35-, and 40-foot lengths by Ontario Bus & Truck (renamed to Ontario Bus Industries (OBI) in 1977) between 1976 and 1993 for the Canadian and United States mass transportation markets. The Orion I was the first bus offered by OBI and was available in transit (2-door) and coach/suburban (1-door) models. It was replaced by the rigid Orion V (introduced in 1989) and low-floor Orion VI (introduced in 1993).

A licensed version of the 30-foot model was produced by Transportation Manufacturing Corporation (TMC) as the T-30 Citycruiser from 1979 to 1982.

Orion I
Orion I buses Top: Original production (round headlights) Bottom: Late production (square headlights)
Overview
Manufacturer	Ontario Bus Industries
Production	1978–1993
Assembly	Mississauga, Ontario Oriskany, New York
Body and chassis
Class	Transit bus
Body style	Monocoque, all-welded steel frame
Layout	RR
Powertrain
Engine	DD 6V53 DD 6V71/6V71N/6V71TA DD 6V92TA Cummins L10/L10G
Transmission	Allison MT643
Dimensions
Wheelbase	180 in (4.57 m) (30')
Length	over bumpers: 376 in (9.6 m) (30') 437 in (11.1 m) (35')
Width	96 in (2.44 m) [30' or 35']
Height	114 in (2.90 m)
Curb weight	19,250 lb (8,700 kg) (30') 20,500 lb (9,300 kg) (35')
Chronology
Successor	Orion V Orion VI