Title: Bell Model 48 (XH-12) The Bell Model 48 was Bell’s first attempt at a larger utility helicopter and used what was effectively a scaled up version of the Bell 47’s two-blade rotor system. A single XH-12 and 10 YH-12 examples were built, but there were problems with the performance of the main rotor and further development was discontinued. This title contains the flight manual for the XH/YH-12 series plus a manufacturer’s brochure. The files have been scanned from the original manuals and retain any colour pages.
