11) i. Apache AH-64A Variant
The AH-64A assault helicopter was the first to start production. The crew sits side by side in an armored compartment. The ship is powered by two GE T700 turboshaft engines. The 701 engine was utilized in the A-model until 1990 when it was replaced by the 701C version, which was more powerful. On September 25, 2012, Boeing was awarded a $136.8 million contract to remanufacture the last 16 AH-64As into the AH-64D Block II version.
11) i. Apache AH-64A Variant
11) ii. Apache AH-64C Variant
Late in 1991, Congress approved more funding for a program to upgrade AH-64As to AH-64B+ models. Due to the additional funds, the plan to upgrade to the AH-64C was changed. The C upgrade would include all upgrades made to the Longbow, except mast-mounted radar and newer 700C engine versions. The C classification, on the other hand, was no longer used after 1993. After AH-64As received the updated engine in 1990, the only difference between the C model and the radar-equipped D model was the radar, which could be changed from one aircraft to another. As a result, the decision was made to call both types “AH-64D” in the end.
11) ii. Apache AH-64C Variant
