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Presently PT6A-21, -25A /25 C, -27,-28,-41,-42 Engines which powers Beech Craft King Air C-90, B 200, BE 100, Twin otter DHC 6, Herbin Y 12 and Pilatus PC – 6 and PC-7 MK II aircrafts respectively are overhauled. Gradually we are expanding to Overhaul engines upto PT6A – 67D which powers PC 12 and Beech Craft 1900 D besides Allison – 250 engines.
VAP's turbo prop overhaul facility houses the Test bed which is equipped with a Schenck Dynamometer D - 1200E which can take-up Engines upto 1200 KW. The testbed is equipped with ACES analyzer for measuring vibration levels both on Reduction Gearbox and Acessories gear Box of the Engines. A sophisticated data acquisition System is provided in the control room for digital display of all the pressures, temperatures at various points in the lubrication circuit and intermediate and exhaust temperatures of the Engine. Paharpur Cooling Tower enables to cool the water for the Dynamometer and Alfa Laval Oil Cooler for cooling the engine oil. The test bed is provided with sound proofing panels for absorption of noise.
To balance the rotor of compressor and turbine a Schenck balancing machine has been installed.
The main assembly and inspection area is dust free and has controlled environment. The shop is equipped with a Standards room for gauge control and Bearing Hospital
to check the condition of the main roller and ball bearings of the Engines.
The cleaning facility is established with an exhaust system for environmental control which enables the cleaning of various components of the Engine before taking up for NDT and further inspection. It is equipped with three types of solutions to take care of different levels of sensitivity called for in the overhaul manual for inspection of components.The magnaflux machine havin capability to go upto 5000 Amps AC/DC current, can take care of even big ferrous components like compressor & turbine rotor shafts.
The engine overhaul facility is unique and will obviate customers in India to send the Engines all the way to Australia or Canada, and is economical to get the Engines overhauled in the shortest period. The facility aslo helps to take up Hot Section Inspection, called for at half life period for these Engines with TBO of approx. 4000 hrs.