Coy Bacon, a durable defensive end, was one of four Washington Federals starters selected by the new franchises in the USFL expansion draft yesterday.

Bacon, who played four years for the Redskins before signing with the Federals, played all 18 games last season. He was picked by the Jacksonville Bulls in the 17th round of the draft, which will continue through six more rounds today. Finishing his 15th professional year, Bacon had 6 1/2 sacks for the Federals.

Also drafted late yesterday were defensive tackle Ron Estay, also by Jacksonville; guard Myke Horton and linebacker Joe Harris, both by the Memphis Showboats; linebacker Ed Baxley and center Bruce Byram by Oklahoma, and defensive end Mike Matocha by Jacksonville. Estay, Horton and Harris were starters.

A total of 10 Federals had been drafted through completion of the draft's 18th round, although no Washington players were chosen in the first six rounds. The other 11 teams lost at least one player in those rounds.

But then the Oklahoma Outlaws took wide receiver Jeff Postell in the seventh round, and in the eighth, took defensive tackle Tony Suber.

"I sort of had a feeling I might go someplace," Suber said. "I didn't fit into the plans for the team. But Oklahoma, that's a new opportunity, something to make the most of."

Postell had played in seven games and started one. Suber played 15 games and started three.

Each team will lose 12 players before the 24-round draft is completed. Starting with 29 protected players, teams shield an additional one each time a man is drafted. No financial compensation is made by the expansionists to the existing teams.

The new clubs, Memphis, Jacksonville, San Antonio, Oklahoma, Houston and Pittsburgh, had postseason experience in mind during the first round. Three players from USFL champion Michigan were chosen--defensive end Curtis Anderson and tackles Phil Dokes and Greg Fairchild.