Except when a minimum turning height is dictated, when would you turn on an Omni directional departure?
In or manuals/procedures we do not normally turn below 400', if we have a turning departure (Below400') it is specifically described when we need to do this. In our performance manual on the 737NG it says min turning for clearance is 100'
I have flown with captains on an Omni Dep who even with ground contact will not make a turn below MSA. A point brought up by another captain was a situation with a Cessna (of course just to emphasize a point), if the Cessna was planning to fly en route at 2000' and the MSA around the airport was 2100', would the Cessna climb to 2100' initially and THEN descend to 2000'.
Something similar to this that I wonder about is when we talk about an emergency after Take off i.e. Engine Fire, again the situation with MSA 2100', a lot of the guys I fly with say that we will climb to 3000' and then deal with the emergency. Now of course with the 737 this may be a matter of a second or two but why would you climb to a higher than necessary altitude before dealing with the emergency, is this not wasting time.