F-35 vs AEW&C

The F-35 compared with other modern jets.
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nathan77

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Unread post05 Mar 2018, 00:32

loke wrote:Hmmm. I may be wrong but I believed that for modern (Western) AEW systems the horizon was the limit and that therefore the range would basically say something about altitude...?

600km range, what altitude does that correspond to?


600km is in 'look-up' mode. Given it's based on a Boeing 737, service ceiling is 12500m (41000 feet).
http://self.gutenberg.org/articles/eng/Boeing_Wedgetail

There's an article about its integration in the fight against ISIS here:
https://tinyurl.com/ycjsd97v
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Dragon029

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Unread post05 Mar 2018, 02:08

loke wrote:
nathan77 wrote:600km range, what altitude does that correspond to?


http://members.home.nl/7seas/radcalc.htm

If you play with the numbers you can see that 600km is nowhere near close to the radar horizon so long as it's flying >30,000ft; at 40,000ft for instance it can see targets from that distance, flying as low as ~5,000ft.
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loke

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Unread post05 Mar 2018, 12:45

Dragon029 wrote:
loke wrote:
nathan77 wrote:600km range, what altitude does that correspond to?


http://members.home.nl/7seas/radcalc.htm

If you play with the numbers you can see that 600km is nowhere near close to the radar horizon so long as it's flying >30,000ft; at 40,000ft for instance it can see targets from that distance, flying as low as ~5,000ft.

Thanks for the link!

I was thinking of low-flying things like cruise missiles (perhaps flying 100fet above the ground?) or low-flying jets (e.g. 500 feet?)

For those cases the range would be limited by the horizon, e.g., for an a/c flying at 500 feet and the Wedgetail at 40,000 feet the radar horizon would be at approx. 500 km if I did it correctly?

So the conclusion is then that the 600km range is not related to the radar horizon but to the range of detecting an object that is not "low-flying" -- and presumably not a VLO target either, since 600km is quite a distance!
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