The CH-148 is based on the airframe of the Sikorsky S-92 series, a modified variant of its Sikorsky S-70 series (the S-70 itself the basis for the US Army UH-60 "Blackhawk"). This helicopter family does not feature the requisite large side doors for cabin occupants and instead makes use of four rectangular access doors (two forward, two aft) with a window-lined fuselage and a rear loading ramp. Engines are uprated types and the airframe makes increased use of corrosion resistant materials required of over-water operations. The two pilots sit behind a short nose assembly and lightly-framed cockpit canopy with generally good views of the outside action. The fuselage design is relatively straight forward, encompassing the short cockpit, large crew area and raised empennage capped by a vertical tail fin and applicable horizontal planes. The twin engine arrangement is comprised of 2 x General Electric CT7-8A7 turboshaft powerplants in a side-by-side configuration driving a four-bladed composite main rotor and four-bladed tail rotor. The main rotor sits atop a short mast held close to the fuselage roof while the tail rotor is set to face the starboard side of the aircraft. Two large sponsons (each housing a 15-man lift raft) are fitted to either side of the fuselage that allow for some limited "amphibious" capabilities while the wheeled undercarriage is retractable (two double-tired main landing gear legs and a single double-tired nose leg). Overall construction is of metal and composites which produce a relatively lighter airframe while retaining robust tolerances required of the role. The CH-148 will be used in an anti-submarine warfare role (when outfitted as such) as well as general transport (up to 22 occupants).
Text ©2003-2016 www.MilitaryFactory.com. All Rights Reserved. No Reproduction Permitted - the Content of this Page is NOT for reuse in any form. Email corrections/comments to MilitaryFactory at Gmail dot com. Material presented throughout this website is for historical and entertainment value and should not to be construed as usable for hardware restoration, maintenance or general operation. Please consult original manufacturers for such information.