Viv S wrote:
Well first with respect to turnaround time; based on empirical evidence, the C-17 comes out tops.
Operating cost:- I don't know what the C-17's maintenance costs is relative to the Il-76, when employed by the same service/company. I've only taken into account fuel costs, which do happen to comprise the of the bulk of the operating cost. There is a huge disparity within the ranges of the two aircraft for the same load(I took it as 45 tons) despite the fact that their fuel capacities are comparable. Computing the figures I pulled of the net, the Il-76's fuel efficiency turned out to be almost half that of the C-17. That leads to me to conclude that the C-17 would have a much lower operating cost than the Il-76.
But you are comparing the NEW C-17 with the OLD Il-76 that the Indian Air Force operates?
If India had ordered new Il-76s instead of the C-17, would it be old IL-76s or new ones?
The upgraded IL-76TD-90 hauls 50 tonnes, vs 45 for the old. It burns 7.2 tonnes an hour, versus 9.0 tonne/hr for the old.
I just noticed that Volga-Dnepr is about to take delivery of its third brand new IL-76TD-90 since 2006. I guess they like them.
Bottom line: according to the airlines, IL-76 = money maker. BC-17 = losing money.
What does that tell you about cost ? Some people used as arguments the number of crew to compute cost. Its ridiculous. I do not know the cost of an IAF crew member. But for argument's sake, lets use $50,000 per year per crew member. If the C-17 has 3 and the IL-76 has 5. There are 2 extra in the IL-76 ( F/E and a Navigator). Thats $100,000 more per year. Multiply by 30 years. Its 3 million dollars. Is that an argument for buying a 250 million dollar aircraft over a 50 million dollar aircraft?
Lets compare the fuel burn of the OLD IL-76 (the model that the IAF has now) to the C-17s. The IL-76MD burns 1.2 tonnes an hour more than the C-17. If these aircraft each fly 500 hours a year over 30 years, thats 18,000 tonnes of extra fuel that the IL-76 will burn over the course of its lifetime. At today's price, the tonne of Jet fuel is 705 dollars. That is about a 13 million dollar difference. Does that justify spending 250 million instead of 50 million? (By the way the new IL-76 burns less than the C-17)
Just to tell you that these "cost saving arguments" cannot justify the decision. So its best to leave them out.
I look at it as though I was the manager of a commercial airline that had to make a choice of aircraft. If one has a proper maintenance organization, plenty of spares and and good technicians, one can have very high dispatch reliabilities with just about any aircraft. I've been in the airline business for many many years now and there is one thing I learned long ago. The more an airplane flies, the more reliable it becomes if it is maintained properly. The nice shinny and new aircraft that sits in the hangar all the time is the most likely to break down.
How much does the IAF spend on IL-76 maintenance today? How much is the IAF about to spend on the C-17 contarct?
I do not have those figures. But I am willing to bet money that the amount that is about to be allocated per aircraft for the upkeep of the C-17s is several times what the IAF is now spending per IL-76. The IL-76 were purchased for peanuts. I don't know, but possibly as low as 20 to 30 million. So there is a reluctance to spend big amounts of money on their upkeep. That is human nature. The C-17s are about to be purchased for an arm and a leg. So we are more willing to spend big bucks maintaining them.
Buy a Hyndai and you are unwilling to spend $500 on a new muffler. Buy a Mercedes Benz and you don't flinch at spending $2000 for the muffler.
I suspect that if the IAF were to spend a mere 25% on Il-76 maintenance of what it is about to spent on C-17 maintenance, the IL-76 would have some of the best dispatch reliabilities in the world.