Currently, United States have 8.725 M1 Abrams MBTs. At unit cost of 8,6 million USD, this gives total expenditure of 75 billion USD for MBT force.
As for APCs, there are 6.000 M113s costing 1,8 billion USD, 6.724 M2s costing 12,1 billion USD, and 4.187 Strykers costing 20,5 billion USD, for a total of 16.911 APCs costing 34,4 billion USD.
Infantry anti-tank weapons are as following: FGM-148 Javelin, reusable top-attack AT missile costing 164.000 USD for launcher and 100.000 USD for each missile (in FY 2013 USD, according to Wikipedia); BGM-71 TOW, with each missile costing 50.000 USD; AT-4, a single-shot unguided AT rocket launcher costing 1.480 USD.
Main Battle Tank will be diesel-powered, no heavier than 60 metric tons with range of 400-700 kilometers. It will have 120 mm smoothbore cannon but main purpose will be breaking through enemy lines and encircling the enemy or destroying enemy supply lines. Cannon will use tungsten and HE rounds (against armored and soft-skinned vehicles, respectively), and armor will also contain tungsten layer(s). It will cost no more than 6.000.000 USD.
Light tank will also be diesel-powered but will weight no more than 30 metric tons. Range will be at least 800 kilometers, and it will use 105 mm rifled cannon. It will exploit breakthroughts achieved by MBTs and destroy enemy supply lines; armor will be RHA with possibility of adding composite and/or tungsten panels to the outside, making repairs far easier. Cost will be no more than 2.500.000 USD.
APC will be based on M113 and will cost no more than 500.000 USD. It will be equipped with either 12,7 mm machine gun, 40 mm automatic grenate launcher or 105 mm recoilless rifle depending on variant, providing a far more effective infantry support vehicle than Stryker or Bradley.
Thus, along with 1.311 AAVs and 1.500 LAV-25s which will be kept, there will be 68.800 new APCs, 8.000 new Main Battle Tanks and 10.800 light tanks. This gives twice as many tanks and 3,6 times as many APCs for the same cost, while allowing for far more versatility in combat.
Main infantry AT weapon will be a recoilless rifle. Ammo is a dominant cost factor for both AT missiles and recoilless rifles; HEAT shells for M40 cost 750 USD each. What this means is that for price of one Javelin missile, one can buy 130 projectiles for recoilless rifle; this article however suggests that cost per missile is 260.000 USD, which would give 346 RR projectiles for one Javelin missile. AT-4 is “only” twice as expensive as each round from M-40 recoilless rifle, and being lighter and disposable it can find good use on a battlefield, particularly in urban warfare – though its higher cost and less versatile nature (only one type of warhead) means that it cannot replace recoilless rifle, and Carl Gustav recoilless rifle might be a better choice. All of this points to a question of why US bureocrats believe that 1/130 as many Javelin missiles or 1/76 as many TOW missiles are a better option than using recoilless rifles (or AT-4 launchers, which give “only” 33 times as many rounds as TOW and 67 times as many rounds as Javelin).
Currently, USAF has following aircraft:
Close air support: 343 A-10, 37 AC-130 – total 380
Strategic bombing: 66 B1, 20 B2, 76 B52 – total 162
Airlift: 73 C5, 28 C12, 217 C-17, 13 C-27, 367 C-130, 2 C-144, 8 C-145, 5 C-146, 10 LC-130 – total 723
Air superiority: 254 F-15, 1.003 F-16, 183 F-22 – total 1.440
Tanker: 59 KC-10, 417 KC-135 – total 476
Total is 3.181 aircraft. Unit flyaway costs in FY 2013 USD are following: 262 million USD for F-22, 126 million USD for F-15, 70 million USD for F-16C; 16 million USD for A-10, 80 million USD for AC-130; 403 million USD for B-1, 1,1 billion USD for B-2, 76 million USD for B-52, 248 million USD for C-5 and C-17, 6 million USD for C-12, 30 million USD for C-27, 69 million USD for C-130/LC-130, 41 million USD for C-144, 5,5 million USD for C-145, 126 million USD for F-15C, 70 million USD for F-16C, 262 million USD for F-22A, 126 million USD for KC-10, 56 million USD for KC-135. Thus, overall cost of all aircraft is 342.385.000.000 USD (342,4 billion USD).
(Note: F-16 is actually multirole – that is, mostly bombing in US parlance – but was originally designed as an air superiority aircraft)
New air superiority fighter would be based on Saab Gripen C airframe configuration, but with modifications. Exhaust ports from canopy’s rear would be removed, and metal plate to the rear replaced by glass canopy piece in order to provide rearward visibility. Center part of canopy would also be redesigned to remove centerline metal piece. Radar would be smaller than in Gripen C (50 kg) and would supplement IRST as a secondary sensor, being used only for gun firing solution in dogfight; nose shape will be primarly optimized for aerodynamic performance. Second IRST would be mounted on aircraft’s rear, preferably on tail fin if possible. Radar-based missile warners would be replaced by DDM NG-style IR missile warners which will also double as an imaging IRST, albeit shorter-ranged than primary IRSTs. It will use IRIS-T as its primary missile and MICA IR for BVR combat. Empty weight would be 5.500 kg, with 3.500 kg of fuel. It would have 30 m2 of wing area, not counting the canards. Standard loadout would be 1 BK-27 revolver cannon with 125 rounds and 2 IRIS-T missiles; additional 4 hardpoints would be located under wings with ability to carry either IRIS-T, MICA IR or drop tanks, and single fuselage centerline hardpont would be provided for carriage of either MICA IR or a drop tank. It would be capable of rough field operations. Cost would be 30.000.000 USD.
New Heavy Close Air Support aircraft would be based on the A-10. It would also be equipped with an IRST and using tungsten projectiles instead of depleted uranium. It would be capable of rough-field operations and have IR supression measures. Cost would be 15.000.000 USD.
Light Close Air Support aircraft would weight 5.000 kg empty and only armament would be a single BK-27 revolver cannon firing HE shells. It would be capable of rough-field operations and have IR supression measures. Cost would be 8.000.000 USD.
New Forward Controller aircraft would be propeller-driven. Cockpit and other important systems would be armored, and it would be equipped with an IRST. Configuration would be similar if not identical to OV-10 Bronco aircraft of the Vietnam war, but with stronger engines and FLIR optimized for detection of ground targets. It would have IR-based missile warners, radar and laser warners as well as countermeasures. It would be capable of rough-field operations, have long loiter time and ferry range, IR signature supression and ability to take off or land in less than 1.800 meters. Cost would be 7.000.000 USD.
New SEAD/DEAD aircraft would be a small, agile wooden turboprop or subsonic jet aircraft equipped with anti-radiation and IR air-to-ground missiles as well as a high-calibre gun (which is only weapon system that would not force it to remain above terrain mask for prolonged period of time). It would be capable of rough-field operations and have IR reduction measures, as well as high fuel fraction allowing for long loiter time. Cost would be 1.000.000 USD.
New tanker aircraft would be modification of four-engined turboprop airlifter. Cost would be 280.000.000 USD.
New airlift aircraft would be a two-engined turboprop cargo plane carrying 7.000 kg payloads. It would be capable of landing on unpaved dirt-strip and rough field airfields. Cost would be 30.000.000 USD.
Heavy airlift aircraft would be a four-engined turboprop cargo plane capable of carrying 70.000 kg payloads. Cost would be 150.000.000 USD.
Aircraft would be procured with spending of 12 billion USD per year for next 20 years, for 240 billion USD total. Procurement rate would be 30 air superiority aircraft for 30 heavy close air support aircraft for 50 light close air support aircraft for 50 forward air controllers for 60 SEAD/DEAD aircraft for 4 tankers for 10 dirt strip air lifters for 1 heavy air lifter (total of 235 aircraft for 3,73 billion USD).
Thus with 240 billion USD spent (64 batches), end quantities would be:
1.920 air superiority fighters
5.120 close air support fighters
3.200 forward air controllers
3.840 SEAD/DEAD fighters
640 dirt strip air lifters
64 heavy air lifters
For a total of 14.968 aircraft, or 11.787 more than current-day USAF (3.181 aircraft), for total of 4,7 times as many aircraft and 7,9 times as many tactical aircraft. In addition, every single of these aircraft would be more capable in performing assigned mission than USAFs current platforms performing same missions.
If total cost is to be identical to total cost of current USAF inventory, 91 batch could be bought and resulting numbers would be this:
2.730 air superiority fighters
7.280 close air support fighters
4.550 forward air controllers
5.460 SEAD/DEAD aircraft
910 dirt strip air lifters
91 heavy air lifter
This gives a total of 21.385 aircraft, or 18.204 more than current-day USAF, for total of 6,7 times as many aircraft and 11 times as many tactical aircraft.
These aircraft would not need concrete runways and would be easy to maintain, thus cutting down costs on several fronts aside from per-aircraft cost: dirt strip air fields are far easier to maintain than concrete ones, and do not require as much or as varied machinery; maintenance-friendly nature of aircraft would also reduce both number and required qualifications of maintenance personnel for each aircraft, as well as amount of expensive machinery required to carry out maintenance; vast majority of aircraft (all except heavy A-10 replacement) will consume far less fuel than aircraft they are replacing, and could be designed to run on biofuel. Ability to fly from dirt-strip air fields would allow for concealed strips in forrested areas with aircraft distributed among the trees; air strip would be concealed by suspended tree tops, which would be removed for aircraft taking off / landing. Aside from emergencies, aircraft would be able to belly-land in case that there was not enough free area for standard landing.
Currently, US Navy has 10 Nimitz class carriers, each of which cost 4,5 billion USD to produce and 350 million USD per year to operate; 10 amphibious assault ships (8 Wasp-class costing 750 million USD each); 22 cruisers (Ticonderoga class, cosing 2 billion USD each); 62 destroyers (Arleigh Burke class, costing 1,8 billion USD each); 17 frigattes (Oliver Hazard Perry class, costing 662 million USD each), 3 LCSs (2 Freedom class, costing 670 million USD each, 1 Independence class, cosing 704 million USD each).
There are also 18 Ohio class ballistic missile submarines (3 billion USD each), 41 Los Angeles class nuclear attack submarine (1,25 billion USD each), 3 Seawolf class nuclear attack submarines (2,6 billion USD each) and 5 Virginia class nuclear attack submarines (2,7 billion USD each). Not counting Ohio class, this gives a force of 49 submarines.
Current US Navy has:
10 aircraft carriers
10 amphibious assault ships
TOTAL: 191 ship
Nimitz-sized conventional carrier would cost 2 billion USD to produce and 143 million USD per year to operate, and would allow for 10% greater force presence. New amphibious assault ship would be similar to Wasp, but with more austere design and possibly smaller displacement, cutting cost to 500 million USD.
Destroyers and cruisers would be replaced by frigattes. There would be 2 multipurpose frigates for each dedicated anti-submarine, anti-aircraft, missile defense
12 Ohio class submarines would be kept, but other submarines would be replaced by new, cheaper nuclear attack submarines and AIP submarines, with cost mix being 1:1. Total cost of new submarines would be 90 billion USD. Nuclear attack submarine would cost 1,25 billion USD (based on, but smaller than, Los Angeles class submarine), and AIP submarine would cost 100 million USD; this will allow for 36 nuclear attack submarines and 450 AIP submarines.
All cruisers, destroyers and frigattes (including LCS) will be replaced by frigattes. Total cost would be 169 billion USD. Frigattes would be general-purpose (50%), anti-aircraft, anti-submarine, anti-ship and missile defense (12,5% of hulls each). Average cost would be 250 million USD, allowing for 676 ships, or 338 general-purpose frigattes, 85 anti-aircraft, 85 anti-submarine, 84 anti-ship and 84 missile defense frigattes.
Thus US navy would have:
22 conventional aircraft carriers
15 amphibious assault ships
TOTAL: 1211 ships
In total, US Navy would have 6,34 times as many ships as current US navy.
This proposal will result in US military having far larger inventory of, in most cases, individually superior weapons compared to what it currently has. These weapons will be equally useful in case of World War 3 (as long as it stays non-nuclear) as in wars against incompetent militaries of rich Arab countries, and will offer far greater versatility than current (and even more so than planned) inventory of weapons.