Crimson swimmers will defeat Pennsylvania and Army in double-barreled competition at the L.A.B. this weekend, but not by much.

Both the Quakers and the Cadets come to Cambridge for 8 p.m. meets tonight and tomorrow, with two good reasons to add to four others Crimson coach Hal Ulen already has why the competition will be close.

Penn and Army each swing on a confirmed star and, especially in the case of the more secretive Cadets, may spring soem surprises with swimmers they haven't yet fully tested in public.

Penn's aco is Parland Johnston, a senior who has defeated the Crimson's backstroke entries for the past two years. He also may make the 200-yard individual medley a toss-up race against Dave Hawkins and Pete Macky.

Army has Don Kutyna, who has just set the West Point pool record for the 200-yard breaststroke. His 2:26.4 time, especially this early in the season, will push Hawkins and Sigo Falk to their extremes and may well beat even that.

In addition, Frank Gleason and Frank Knight, diving respectively for the Quakers and the Cadets, have shown well--well enough, in fact, to assure the Crimson's Greg Stone and Duane Murner of real competition. Army's Don Johnstone may prove a sleeper off the board.

Ulen, meanwhile, will try to teat his sophomores, especially Fietcher Davis in the 220 and 440. Other new varsity members are still in the process of working their times down to provide respectable competition. For this reason the sprints guarantee ample excitement.

Finally, while neither Penn nor Army has great depth, the Crimson has little more. Ulen is faced with the job of building it, but at the same time he must not tip off future opponents as to exactly how much power he does possess.

Bill Brooks, freshman swimming coach, will not have to worry about being quite so cagey Saturday afternoon at 2:30. He will turn his team loose at Andover and hope for their best performance against one of the toughest teams they will face this season.

He has three new names in his favor: John Trainer in the backstroke, Ed Walsh in the 50, and John Hammond in the individual medley have established themselves as frontliners for the Yardlings.

This triumvirate bolsters Frank Gorman in the dive and sprints, Bill Murray in the medley, Dick Season in the 200, and Jim Stanley in the fly