Which brings us back to the GBAD discussion.
Let's pick it up once again
Maybe starting from a theoretical approach?
Our opponent musters (post #9):
- 110 Tornado IDS
- 50 Alpha Jet A
- 30 RF-4E
- 68 F-4F/ICE
Due to the force structure, of the above, only the Tornado IDS and Alpha Jet A are of immediate concern to us. The remainder do not carry air-to-ground munitions (in Orange service, at the moment).
Tactical Distribution:
Ground-Attack Squadrons 1-3 (16 Alpha Jet A each)
Strike Wing 1 to 3 (ea 2 squadrons of 18 Tornado IDS each)
Geographical Distribution, Basing:
GAW, Sq 1 : Bearing 300 degrees, Distance 100 km (Hahn)
GAW, Sq 2 : Bearing 250 degrees, Distance 100 km (Saarbrücken)
GAW, Sq 3 : Bearing 2 degrees, Distance 240 km (Lippstadt)
SW1, Wing : Bearing 330 degrees, Distance 180 km (Cologne)
SW2, Wing : Bearing 308 degrees, Distance 130 km (Büchel)
SW3, Wing : Bearing 3 degrees, Distance 400 km (Bremen)
Bearing and Distance from our capital. Reduce distance by about 40 km for the distance to the border to Blue territory.
Strike attacks can be flown from bearings between 230 degrees and 30 degrees (from capital). Bearing 30 to 95 degrees is our border to Green 1, Bearing 95 to 205 our border to Green 2, Bearing 205 to 230 degrees our border to France. To get an overall picture.
The closest airports to our border are those of GAW Sq 1 at 75 km and GAW Sq 2 at 55 km. Strike Wings have been deliberately placed outside the maximum range of offensive weapon systems (legally) available to us.
From terrain features, sorties from GAW Sq 1 can be picked up up to 50 km from the border, sorties from GAW Sq 2 from up to 40 km. Sorties from the strike wings can in theory be picked up at up to 60 km from the border, although ground clutter will complicate this considerably with Orange using LO-LO attacks.
For our purposes, we will consider each of the above squadrons capable of generating exactly 1.0 sorties per aircraft per day*. This means we would - on average - be facing 2.0 CAS sorties and 4.5 strike sorties per hour, hence 6.5 sorties total per hour. During peaks, we'll have to be handle about 3 times that, meaning 19.5 sorties per hour.
This is considering Orange focussing its airforce on us, without Green 1/2 coming into play.
We will not have to cover a full 360-degree arc with our allies - or neutrals - at our back, so we'd more likely focus air defense on the above 160 degree arc towards our enemy. The perimeter at our border over this arc is roughly 150 km long, in order to defense the full border region from our capital itself, we'd need a system with 60 km range. A 50-km-range system could defend our border over the full arc from two positions west and northeast of our capital. A 25-km-range system with some overlap at the extreme range would need at least four positions.
The system would in any case need to be able to intercept an aircraft flying at Mach 1.0 to Mach 1.3 at altitudes below 200 ft against ground clutter in hilly terrain.
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*- 1.0 is not low, about average for aircraft of that generation