Mi-8 Salon - VIP version
Mi-8PPA - AEW
Mi-8TG - condensed gas fuel version. Klimov's engines First flown in 1987. Tests resumed in Aug'2000.
Mi-9 - airborne command post
Mi-14BT - base combat version.
Mi-14PL - anti-submarine
Mi-14PS - search and rescue
Mi-14P - amphibious helicopter
Mi-14PZh - amphibious fire-killer version of Mi-14BT. conversion price about USD1M
Mi-17 Airbone Medical Variation
Mi-17M Increased power plant armed version, the largest number in use of Mi-17s
Mi-17MD The newest variation which can carry 40 people
Converting a manned platform into an unmanned one is poor & expensive approach towards designing UAV. Even our university Grads can built an robot arm to control helicopter via wireless connections.
The point is that UAV must be a class of its own like Predator & DOZOR; only this ensures economically feasibility of a UAV & the flexibility it can offer. Plus for extraction purposes I am not in favour of UAV as this operation (usually in the midst of firefight) requires a manned-trustworthy platform
Some captures regarding engine alignment on helis...see they are moved upwards, to reduce heat signatures to ground based threats- IR missiles(their OFTEN enemy)