Hello Shortround6, I was on a phone yesterday and missed your post completely. A quick reply to the points you made.
There are 21 Buffalos and 6 or 7 Wildcats already on Midway along with 20 or so B17's, 4 B26's, 6 Avengers and 27 Dauntless and Vindicator dive-bombers.
I AM TRYING TO FIGHT THIS BATTLE AS IF I DID NOT KNOW THE FUTURE (not yelling, all caps so you would understand that)
I am using Wildcats and P36's because I am only using what was historically available and might reasonably be released, (thats why there aren't Spitfires, Corsairs, P38's, P47's, Bearcats, F22 Raptors and nuclear weapons). Hawaii would not release P39's or P40's (very reasonable) because of possible attack on Pearl Harbor. They MIGHT release the 'obsolete' P36's, so I included them.
My plan follows historical timeline with what was available: Halsey gets message to return to Pearl. Suspecting something big is up, he sends SBD to Noumeou (spelling?) island and retrieves the 21 Wildcats he just left there and bring them back with him. Gets back, is briefed on Midway. They know (they think they know and were right) when and where attack is coming. They think 4 or 5 Japanese carriers, they would discuss how many planes per ship, size of 1st strike, reserve strike held on ship in case we, US, fleet shows up. Lots of talk and discussion.
Some one says, "we know when and where a big strike is coming, correct? Then lets ambush the first raid with a huge fighter defense. These are some of, if not THE finest carrier pilots in the world, lets thin them out before we engage with our carriers. We know the date, surely they will attack at dawn, we have radar, lets have a large group in the air and thin these guys out"
"Whats available?" "Well ADM Halsey brought back 21 Wildcats from Noumeou, Yorktown is bringing back 15 airworthy F4F3's and after all the replacements on the 3 carriers are done we have 10 F4F4's that are unused. That gives us 46 Wildcats."
"What about some P39 or P40's?"
AAF guy "We can't release any from Pearl Harbor defense in case your intelligence is incorrect. We have 22 old P36's that I guess we could let go. They aren't any good to us anyway"
"Ok. Lets get those P36's in shape right now, change engines if needed, toss in 2 50's and add some armor behind the pilot. Its the least we can do for the pilots. We will send out the 31 Wildcats and 22 P36's on the Hornet as a deck load. Enterprise will escort her to Midway where they will deposit the deck load fighters and then withdrew a reasonable distance and wait for the first attack. Also, when Yorktown gets here I want all 15 of her F4F-3's brought as close to 100% as possible. You'll have about 3 days for that. We will send them back with Yorktown if she gets fixed in time. We will add B17's as long-range scouts and bombers, everything else on the island will be a fighter."
This is the alternate timeline discussion as I picture it happening. I see everything discussed above as being reasonable and possible.
Shortround6, no to answer your specific questions: Fighters arrive with full ammo, partial fuel, how long to fill them up? They could arrive a couple of days ahead of the actual attack on morning of June 4, but I replaced 37 bombers with 68 extra fighters, so they should have no trouble getting fuel and oil tanks topped before the actual battle so for at least the first Japanese raid, all fighter aircraft would be ready to go.
The B17's departed before dawn so parking for B17's could now be used to spread fighters out a bit more.
When the Japanese fleet and then first attack wave was sighted, all the planes on Midway were on the runway with pilots in the cockpits and engines running. THEY KNEW ATTACK WAS COMING THAT MORNING. All the Midway fighters and bombers were scrambled starting at 0552 and the airfield was empty by 0600 according to The First Team (the air raid siren went off earlier but the pilots couldn't hear it and they had to send a truck down to tell them to take off!)
I would have say 20 Wildcats on CAP over Midway.
How many could take off at once? How fast could they get everyone up? I don't know. What I do know is that at Guadalcanal, they scrambled some pretty large groups of fighters and bombers pretty quick, and we all know that Guadalcanal was a nasty, muddy, half completed, 1 runway nightmare. Midway has 3 modern paved runways. I would think that they could get 75 fighters off pretty quick.
How many at a time could go down one of those runways? 2? 3? How much time in between each group? 15 seconds? 20? 30?
2 at a time, 30 second spacing is 4 a minute 19-20 minutes to get everyone off. 2 at a time 15 second spacing is 8 per minute, 10 minutes to get everyone off. 3 at a time, 15 second spacing gets everyone gone in 6 minutes.
Level bomber attacks started at 0634, dive bomber attacks started at 0640.
If everyone is off the runway by 0600, as historically all 37 bombers and 27 fighters were (all B17's had left EARLY that morning) then that gives US fighters 30 minutes to climb and assemble into some sort of attack group (or multiple attack groups with Marines flying together, AAF flying together, Wildcats together, P36's together and Buffaloes together, so probably 4 different groups) if they attacked just barely out of flak range. One thing about this plan, THEY CANT SINK MIDWAY.
So first attack happens. Japanese leave, our fighters land. Runways should be good considering 90+ fighters just interrupted the bomb run.
The Japanese have to return to carriers, tell them that there is need of another attack, land what is left of 1st strike, remove torpedoes and re-arm level bombers with bombs, take off, and fly back. This will take several hours. So Midway has several hours to refuel and re-arm its fighters. On Guadalcanal, Marine grunts jumped in and helped re-arm, refuel and even hang bombs and torpedoes on Henderson field airplanes. I would show them how to refuel, add oil and re-arm these fighters the day they arrived so they could help get them ready for second wave.
Shortround6 (and everyone else) take a look at that and see if that plan seems reasonable with what was available and when.