The Caterpillar No 28 ripper in 1:50th scale was in 1993 as a kit released by A.I.P.E.T.H.O.A.C.

A.I.P.E.T.H.O.A.C. is the abbreviation for Association Internationale pour la Promotion des Engins Techniques et Historiques comme Objets d'Art et de Culture. The Aipethoac is an association whose purpose is to bring together enthusiasts of Earthmoving equipment, mining, forestry, transportation, etc ., new and old, as well as scale models.

It was customary that all members of the association each year received a free resin kit and in the year 1993-94 was this the Caterpillar No 28 Ripper.

Caterpillar No 28 Towed Ripper

The Caterpillar No 28 Ripper was built between 1947 and 1954 and weights 13,430 lbs.

Removable cover plates were provided in frame to permit filling with sand, which increased the operating weight approximately 2,200 lbs.

Caterpillar made cable-operated rippers that were towed behind Track-Type Tractors and were advertised as being able to penetrate to a maximum of 30 inches. The Caterpillar No 28 Ripper could be used with one or two Caterpillar D8 Track-Type Tractors.

The Caterpillar No 28 Towed Ripper could be used behind one or two Caterpillar D8 Track-Type Tractors.

The Caterpillar No 28 Ripper was built between 1947 and 1954 and weights 13,430 lbs.

Removable cover plates were provided in frame to permit filling with sand, which increased the operating weight approximately 2,200 lbs.