D.C. Mayor Marion Barry's desire to satisfy Washington Redskins owner Jack Kent Cooke and keep the team in the city has resulted in the Stadium-Armory Board changing its plans to spend $13.7 million to renovate RFK Stadium for baseball to, instead, the construction of 2,000 additional end zone seats for 1988 at a cost of $1.7 million.

Jim Dalrymple, the Stadium-Armory Board's stadium manager, said yesterday the board felt it did not want to spend the city-appropriated $13.7 million at this time because of expenses the city is incurring for feasibility studies of a number of options (including a domed stadium) and an enlargement of RFK Stadium.

In the past four months, Cooke repeatedly has expressed a desire to have a new stadium for his team seating 75,000 -- preferably with a retractable roof. In addition to conversations with Barry, who also serves as chairman of the armory board, Cooke reportedly has met with Loudoun County officials concerning the possibility of constructing a stadium there.

The construction of the south end zone seats, which would increase the capacity of RFK Stadium to more than 57,000, was to have been the third segment of the renovation of the stadium. The first two segments, consisting of the renovation of the seats in the closed end zone (third base side) and visitors' side of the football field (left field) will cost $5.3 million more.

Another $6.7 million was to have been spent on other improvements to the stadium, but that does not appear to be in the current plan.

The entire project, according to Dalrymple, could be completed by 1989-90. Baseball has yet to announce definite expansion plans and Washington is not assured of getting a team if expansion does occur.

D.C. Councilman Frank Smith, chairman of the D.C. Baseball Commission, expressed disappointment at Dalrymple's remarks, which were first made at a meeting of the baseball commission yesterday.

Smith is concerned that continuing renovations could deter a baseball team -- should the city land one -- from playing in the stadium in 1989. "It's another fly in the ointment," Smith said. But Dalrymple said he'd been assured by the construction firm -- Herk Edwards of California -- that competition in both football and baseball could take place while work progresses.

"The armory board did not want to spend the money {$13.7 million} on the proposed renovations at this time, what with all the feasibility studies taking place, including possible enlargement of the stadium," Dalrymple said. "We preferred to proceed with the construction of the end zone seats this summer."

Dalrymple said the $1.7 million for the end zone seats will come from surplus armory board funds rather than city-appropriated funds.