Thanks for the PDF. I cannot make out that many disadvantages of bombers, particularly the B-1B, doing CAS in that document.
Flight times to the theater are high if one operates out of Diego Garcia but much lower in the middle east where they operate out of Quatar. They are not alert assets coming in right from the tarmac although from their Quatari base they are not much further away than other assets and in the case of the B-1B not much slower.
Reattack times of 5min are also not all that much considering BDA needs to be done while the dust settles and that they can service more targets in one run.
Informations about one ship CAS missions are for example to be found in the books Apache, Hellfire and Fire Strike 7/9, all of them covering Afghanistan and probably more prominent there due to the restrictions on number of assets in theater.
The USAF also releases numbers for the current conflict against the IS.
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The picture is out of this article:
https://www.airforcetimes.com/story/military/2016/03/30/isis-kill-missions-1-5-conducted-drone/82389432/
And this article covers the B-1Bs in theater:
bombing-isis-cmdr-shares-lessons-6-months-airstrikes | DefenseNews
It shows that the pattern continues as in that the B-1Bs dropped most of the loadout with a small amount of sorties. The second article states that many of these missions were CAS missions.
What is telling is that the USAF rotated the A-10 out of theater and substituted it with normal multirole fighterbombers in theater while they also rotated the B-1Bs out but replaced them with B-52Hs.
Fighterbombers, UAVs and Bombers act in concert here, each bringing in some particular strengths with the bombers often not getting the recognition they deserve. But I fail to see the particular need for a plane like the A-10 in here.
I would even say that the air force got it right in that they think about putting 1-2 new birds into service for these kind of missions in a low/medium mix like Super Tucano/Scorpion. CLet such cheap platforms handle some of the burden while reducing pressure on the operational budget and flight hours of the high performance assets.
The A-10 IMHO is too expensive to operate for what it bribgs to the table as it is just as useless against any halfway serious air defense just like cheaper platforms.
@Volkodav
I think so. P-3s are already used for ISR due to their onbooard sensors and persistence and the french just recently upgraded some of their Atlantices for self designating and dropping PGMs. This is IMHO even more interesting for countries without bombers and the exhaustive UAV capability like the US.