Sharky's got the ticket about Loose Duece.
BTW, there is one more reason for the wingman to be at a higher alt than the leader. You don't always have to bracket horizontally... you can bracket vertically as well. If the wingmen are D2-D3 apart and one is higher than the other, you can easily bracket a lone bogey in both the verticle and the horizontal at the same time. This is very deady... the contact has nowhere he can go without turning his six to one or both bad guys.
Ripsnort, the only thing with a co-alt separation is that the wingman will not have any extra E. When flying formation or even following another plane, the leader can't go full throttle or the wingman WILL be left behind. The only way to avoid this and give the wingman enough extra E to be able to quickly clear the lead's 6 at any time, is to start the engagement with the wingman a bit higher. When something goes wrong and it hits the fan, I want my wingy to have the extra E to clear me very quickly, and I can tell you from experience that if you are co-alt to start with, my wingy can't always get there. I've watched my lead get exploded for the same reason. Sure, i killed the bogey 5 seconds later, but if I'd had a bit more E at the start, I could have caught him and maybe saved his bacon.
One solution my wingy and I have to this is different plane types. I fly the F4U-1D, and he is a Pony driver. His ride climbs better than mine, is faster, etc. etc. This means that when we go hunting, I lead and he is my wing. With his better climb, acceleration, and speed, he can always get to me if he needs to. We still use Loose Duece and are very flexible with it, but we have to sweat the details less because of the different plane types.
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Lephturn
The Flying Pigs
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