TDI designs and manufactures a full range of Marine Diesel Engine Air Starters designed for work boats and fishing vessels. The TURBOTWIN™ design offers the most power in the lightest weight package available. T30 and T100 models cover engines from 60 to 2500 HP. The TURBOTWIN™ series starter comes in four basic power configurations: The T20 (12.5 Hp) for engines less than 8 liters, the T30 (30 Hp) for engines in the 8 to 20 liter range; T106-F and T50-P (50 Hp) for medium sized engines in the 20 to 75 liter range; and T100 (100 Hp) for large engines in the 70 to 300 liter range. TDI has pioneered the use of turbine technology with its unique twin turbine-powered air starter for use on industrial, diesel, natural gas reciprocating engines, as well as a variety of industrial gas turbine engines. Tech Development, known internationally as TDI, is a part of GE Aviation Systems LLC.