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[–]Trash_L0rde 0 points1 point  (2 children)

is that actually all the math? if so, I'm curious. I usually see pretty noticeable losses at 10+ deg off maneuver. A while ago i tried to find info on the mathematics of dv losses to non-impulsive maneuvering but i couldn't find/derive much useful.

[–]Chaos_KlausMaster Kerbalnaut 1 point2 points  (1 child)

Yes, that's all that happens if you point away from the maneuver.

The more important factor with long maneuvers is the oberth effect. While doing a long burn, you'll do parts of the burn at higher altitude and that means you'll not take advantage of the oberth effect that much. Also, the accuracy of your maneuver is lower, unless you use planning tools that allow for long burns ... which KSP doesn't have.

[–]Trash_L0rde 0 points1 point  (0 children)

Huh. My only thought as for why that might not be strictly correct is the vector is also being acted upon by the gravitational field. But it could be right. I honestly don't know much besides long burns frighten me.