My Jug tactics are as follows
1. Pick 50% fuel and either one or two underwing droptanks. I take all eight and the heavy ammo load just cause i like it. They don't call me LEDPIG for nothing.
2. Takeoff and climb to altitude, 12 -13k is usually good. Just be above the horde.
3. Stalk and observe your prey, dive when you can intercept at a good point. Pick targets that are highest or on the edge of the furball. Also pick targets that are unaware if possible.
4. Dive with good speed, use wep if possible. Go as fast as you can and still be able to track a target for a second if it decides to turn after seeing you. If you can't make shot keep going.
5. Look behind you to see if you've been had. If you kept your speed it's no problem. Also before making an attack be aware of who's in position to get on your tail and if you'll have the E to get away from them.
6. If you meet a con up high you can dogfight with them. But if you see yourself getting too low disengage if possible. I will dogfight Typhies, Mustangs, Lightnings, Corsairs, Hellcats. With the latter two i might go only one to one and a half turns before i disengage. At that point i've lost the advantage. Spits i generally don't dogfight unless you can catch a quick shot after the initial turn. I usually stay away from Spits unless i have some E advantage.
7. After making an attack keep going straight for awhile start climbing after you've gotten 1-2k away. Pick an altitude and climb back up after every attack. Watch who's coming up after you.
8. If you find yourself on the deck you usually did something wrong or got greedy chasing somone too low. Remember the dense air on the deck will bleed all the E you once had. Don't dive after people too low.
9. Also i usually ignore my own tactics quite a bit and go down on the deck and fight anyway. Because, A) If you don't die you won't learn anything, so don't be afraid to die. When i do this i know i'll probably be killed anyway but it's good practice. And also B) it's just plain fun, learn how to fight at a disadvantage, it will help you. Screw your score, get in there, and go get some.
Anyway those are my P-47 tactics i use same one in 38's and 51's. Although i'm more apt to turn fight in a 38.
Now go get yourself some!