The Republican National Committee, in a sweeping critique and condemnation of President Carter's foreign and defense policies, charged yesterday that they have placed the United States "in a more perilous position than it has faced since 1941."

A seven-page statement by committee Chairman Bill Brock and John F. Lehman of the committee's advisory council on national security and international affairs attacked Carter for canceling or delay-a long list of military programs. Among the programs listed were the B1 bomeber, Minuteman III missile, neutron bomb, nuclear-powered aircraft carrier, MX missile and Trident submarine.

The report did not say what the GOP would do about the military programs, but inference was that the Republicans would have maintained or increased them. Nevertheless, the GOP report claimed that "what must be done to reverse this disastrous course can be carried out within austere budgets with a sustained real growth of 3 percent per year in defense spending."

At a news conference later, Brock said that Carter's proposed military budget should be increaed at least $5 billion even if that means a worsening of the federal deficit.

No alternatives to Carter's policies were given, but the report promised that Republicans will provide such alternatives during the next two years.

"The failure of this administration in national security is enormous," the report charged. It called Carter's foreign and defense policies "short-sighted and dangerously inadequate."

The summary list of Carter administration failures charged by the Republicans said: "America's reliability as an ally is in doubt, our military defenses are becoming less capable of maintaining peace every year, our international economic strength is rapidly deteriorating, our position in some of the most vital regions of the world is crumbling." The statement went on to charge that "the danger of world disintegration increases as U.S. leadership falters."

The Republican document also charged:

"America is rapidly becoming number two" to the Soviet Union "in nearly every relevant measure of stragetic, naval and land forces."

The proposed strategic arms limitation treaty (SALT) with the Soviet Union to limit strategic nuclear arms "could lock us inyo a position of strategic inferiority," Carter "misrepresents the facts" by saying that some Soviet missiles will have to be destroyed under the pact, when it is only obsolete missile "Launchers" which will have to go.

Caterhs claidm of a 3 percent real growth in military spending is based on "unrealistically low inflation rates" and actually is a decline in real terms of 2 percent yearly using appropriate calculations.

"Carter tells us that we can meet all our worldwide military committments. He does not tell us that we can only meet them one at a time," charged the report.