IIRC, it's climb on runway heading until reaching 1500 feet, then turn left to another heading, maintain 3000 feet. If you're going north, then it's a 270 heading. If east, it's a 180 heading. And yes, I've also wondered why this isn't a published DP
. "Cleared via the Long Beach 2 departure, east transition (or whatever), then as filed, maintain 3000, squawk 1234." Much easier.