Autosan A1112T: the stainless-steel coach family

AUTOSAN

Autosan A1112T Ramzes coach of PKS Krosno
Autosan A1112T Ramzes coach of PKS Krosno. Photo by Lukas 3z, CC BY-SA 4.0 via Wikimedia Commons.

The Autosan A1112T is a series of tourist coaches produced in Sanok from 1999. It belonged to the new A11 family and was offered in intercity form as well. Over eight years it grew from the Cummins-engined San into the MAN-based Sanman and the stainless-steel Ramzes.

Autosan A1112T at a glance

Autosan A1112T key facts
Maker Autosan, Sanok, Poland
Production 1999–2007, with a break in 2005–2007
Class tourist and intercity coach, 12 metres
Family A11
First model A1112T.01 San, shown in 1998
Floor 300 mm higher than the A1012T Lider
Luggage space 8 m³ in the San
Engines Cummins C300-20, ISM 340 E20, ISMe 345-30; MAN D2866 LOH29 and D2066 LOH04; Renault DXi7
Power 221–324 kW (300–440 hp)
Gearbox manual ZF, later a six-speed Allison automatic
Body frame with glued windows and stainless-steel panels
Exports six Sanman coaches to Greece in 2004

The A404T Cezar, mentioned here as the reason for the Ramzes, was a separate coach on a Mercedes-Benz chassis.

History of the Autosan A1112T

The San, 1998–2003

Autosan A1112T San of PKS Kraków
An A1112T San in service with PKS Kraków. Photo by Lukas 3z, CC BY-SA 4.0 via Wikimedia Commons.

The first member of the A11 family, the A1112T.01 San, was presented in 1998 and went into series production a year later. It was technically and stylistically close to the A10 family, but its floor was raised by 300 mm compared with the A1012T Lider, which increased luggage space by 3 m³ to 8 m³. Power came from a Cummins C300-20 diesel of 8.27 litres and 221 kW (300 hp) meeting Euro 2. The body was a frame structure with glued thermal windows and stainless-steel skin panels, plastic front and rear walls and aluminium luggage flaps. A chemical toilet was optional and reduced the maximum number of passengers to 45; a fridge and a drinks dispenser were also on the options list.

In 2000 the modernised A1112T.02 San appeared, mainly a restyling: a new plastic front wall with a taller windscreen raised the front of the roof. Its Cummins ISM 340 E20 produced 250 kW (340 hp), and production of this version ended in 2003.

Ramzes and Sanman, 2001–2007

Production of the A1112T.03 Ramzes began in 2001 in tourist and intercity forms. It was the first Autosan bus built entirely of stainless steel, on a longeron-and-frame chassis, with a Cummins ISMe 345-30 of 11.3 litres and 253 kW (345 hp) under Euro 3. Identical outside, it offered 1.5 m³ more luggage space thanks to a redesigned chassis and a new door layout, with the second door moved from the rear overhang ahead of the second axle. The tourist version had a sleeper cab for the driver between the door and the rear axle, and a ZF Intarder retarder was standard. The Ramzes appeared because Mercedes-Benz ended production of the DC O-404F right-hand-drive chassis in 2002; that chassis had been used for the A404T Cezar coach.

In 2004 came the A1112T.04 Sanman, sometimes called the Ramzes Sanman, on a MAN 18.410 HOCL (R33) chassis with a MAN D2866 LOH29 of 11,976 cm³ and 301 kW (409 hp), a ZF 8S-180 manual gearbox and a MAN dashboard. Its luggage flaps opened vertically, parallel to the body sides, and luggage capacity fell to 8 m³ because of the shorter wheelbase, or 7 m³ with a toilet. Production of the A11 coaches stopped in 2005 for lack of demand and resumed in 2007. In the first quarter of 2007 two A1112T.05 Sanman coaches with a 324 kW (440 hp) MAN D2066 LOH04 were built for PKS Bielsko-Biała.

The last A11 coaches

At the Transexpo fair in Kielce in autumn 2007 Autosan showed a renewed Ramzes prototype with a Renault DXi7 ACJ01 Euro 4 engine of 235 kW (320 hp) and a six-speed ZF 6S-1200 gearbox, round front indicators moved into the bumper and a Meritor rear axle. From 2008 the modernised Ramzes was sold as the A1012T.08 Ramzes with a Cummins ISLe4-320 of 8.9 litres and 235.2 kW (320 hp), an Allison T350R automatic, CAN-bus electrics, ESC and EBS. Annual output of the high-floor A11 family ranged from a few to a dozen coaches, sold mainly at home, although six Sanmans went to Greece before the 2004 Olympics.

Design and features

  • Raised floor: 300 mm above the A1012T Lider, giving 8 m³ of luggage space in the San.
  • Stainless-steel body: the Ramzes was the first Autosan coach built entirely from stainless steel.
  • Retarder as standard: a ZF Intarder allowed a higher permitted luggage weight.
  • Sleeper cab: the tourist Ramzes had a driver’s sleeping cabin between the door and the rear axle.
  • Coach options: chemical toilet, fridge, drinks dispenser and, later, ESC and EBS.

Autosan A1112T versions

  • A1112T.01 San (1998–2003): Cummins C300-20, 300 hp.
  • A1112T.02 San (2000–2003): restyled front, Cummins ISM 340 E20, 340 hp.
  • A1112T.03 Ramzes (2001): stainless-steel body, Cummins ISMe 345-30, 345 hp.
  • A1112T.04 Sanman (2004): MAN chassis and 409 hp MAN engine.
  • A1112T.05 Sanman (2007): 440 hp MAN engine, two built.
  • A1012T.08 Ramzes (2008): Cummins ISLe4-320, Allison automatic.

The A1112T was the coach above the intercity A1012T Lider, and it shared its market with the earlier H10 maxi buses. More coaches are in the Autosan collection.

Sources