Well. The PAF can really use the Bell A412 helicopter. It's specially designed for search and rescue missions i think. I'm sure pakistan airforce can afford a variant like that.
On the other hand, X_man, I think Blackwater is right about the mi-17. You also have to look at the fact that speed is also an issue in search and rescue missions.
my dad flew the SA330 puma for a couple of years. Mostly when there was a Rescue operation required for quick response, Puma's were considered. The flying dolphins are fast and more reliable in such a scenario when compared with the Gallant's MI-17's
This thread started as a Requirement for a Bomber has somehow turned into a Requirement of a Rescue Helicopter, but I will continue with the discussion. As I mentioned that PAF has already selected and inducted MI-171 as a SAR heli and its already operational in many squadrons and will continue to do so for atleast next 20 years or so. So I dont see any point in discussing that which helicopter will be better for PAF as alternate for Allouette because alternate is already in place and flying.
MI-171 may not be an ideal SAR in a classical way but it has proven itself not only in this role but also various other roles as well for decades. While considering many alternates for Allouette, PAFs also wanted that alongside SAR capability, it should have :-
** A reasonable cargo capacity that carry a single engine or medium cargo within its fuselage for short haul flights e.g between Risalpur and Peshawar instead of using expensive C-130 or CASA flights for small loads.
**Troop carrying capacity for 25 to 30 soldiers (airforces commando group etc)
**A heli that can be converted into a VIP configuration in a short time and could carry a resonable amount of passangers.
**Has enough range to cover bases like Samungli and area south of Shorkot (and Thal Firing range area). In 1997, we had an F-7 crash south of Bhakkar and the rescue operation became difficult due to very limited range and search time of the Allouette. Finally Army aviation came to rescue and the pilot was recovered back to Sargodha. Similarly, Samunglis (Quetta) northern and southern flying training areas are way out of range for many helis and MI-171 was particularly considered for that rugged terrain and far flung areas due to its good endurance.
**Easy and hassle free spare and maintenance support.
So in a nutshell, Air staff must have considered all options, attended multiple presentations, held various meetings and after much deliberation while keeping in mind political, economical, and operational and various other aspects, they decided to go for MI-171 as it suited many PAFs objectives. I trust their judgement and hope that this heli proves itself in all the perceived roles.