April 3, 2012: In the last three years the Indian Air Force has lost 33 aircraft to accidents. These include three Su-30s, one Jaguar, three Mirage 2000s, 17 older MiG models, and ten helicopters. The Indian Air Force has been losing aircraft at nearly twice the rate of the U.S. Air Force. The two main reasons for this are one, the lack of good trainer aircraft, which sends a lot of new pilots into the air in some difficult to fly aircraft (like the MiGs) with inadequate flight training. The second reason is all those Russian aircraft, especially the older MiGs, which have always had higher accident rates.
The military measures flight safety in terms of how many serious accidents there are per 100,000 hours aircraft are flying. For example, American made F-15s and F-16s have an accident rate of 3-4 per 100,000 flight hours. India, using mostly Russian aircraft, has an accident rate of 6-7 per 100,000 hours flown (compared to 4-5 for all NATO air forces). During the Cold War Russian combat aircraft had an accident rate of about 100 per 100,000 flight hours. This was kept secret by the Russians, at least until the Cold War was over. It was widely known that Russian airliners were more dangerous to fly in than their Western counterparts.
Combat aircraft have, for decades, been getting more reliable, even as they became more complex. For example, in the early 1950s, the U.S. F-89 fighter had 383 accidents per 100,000 flying hours. A decade later the rate was in the 20s for a new generation of aircraft. At the time the F-4, which served into the 1990s, had a rate of under 5 per 100,000 hours.
Combat aircraft, along with their civilian counterparts, have gotten more reliable and easier to maintain despite growing complexity, for the same reason automobiles have. Better engineering and more sensors built into equipment makes it easier for the user and maintenance personnel to detect potential problems. Aircraft used the computerized maintenance systems, currently common on new aircraft, long before automobiles got them. Unless you have a much older car that still runs, or a real good memory, you don't notice the enormous increase in automobile reliability. But older pilots remember because such changes are a matter of life and death if you make your living driving an aircraft. And commanders know that safer aircraft means more aircraft to use in combat and more aircraft that can survive combat damage and keep fighting.
Another factor in lower military aviation losses is the domination (of the air) by American warplanes for the last 70 years. The U.S. continues to lead the world in developing military aircraft technology, and this means no one has been willing, or able, to engage the U.S. in a major, and bloody, air war during that time. Thus for the last few decades American (and Western) aircrews have gone into battle at little risk to themselves, at least compared to World War II and before. During that conflict you were more likely to get killed flying in a heavy bomber over Germany than if you were infantry fighting on the ground. That has gradually changed over the last seven decades. While American ground forces have reduced their loss rates by about two-thirds the aircrew casualties have declined by over 95 percent.