2 Learjets and 2 PC 9 overhead the Baltic Sea 16 June

[jaja]

Yesterday for approx 2 hours (between 10-12 lt), 2 Learjets flew these quite strange patterns. For some of the time they were accompanied by 2 PC 9.

The Learjets departed and returned to EPOK Gdynia-Kosakowo Airport

Any idea what they were doing ?
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https://cimg3.ibsrv.net/gimg/pprune.org-vbulletin/750x1334/d417e2be_fd79_448c_8a73_c5674d39dc23_afcb200d0f432b3badbb544 771d949fb428ca552.png
https://cimg5.ibsrv.net/gimg/pprune.org-vbulletin/750x1334/3661adf4_860c_4014_9d40_3f9b5c72c9f8_977da99af14731d2412d6c7 e5fbc86613135b8c7.png
https://cimg6.ibsrv.net/gimg/pprune.org-vbulletin/750x1334/3c81fd05_2af9_40a3_9df3_0137d71fd34b_a6a629668d2dc95f2b2fa8b b3c75e657fd491e99.png
https://cimg7.ibsrv.net/gimg/pprune.org-vbulletin/750x1334/d7abc1d4_b69c_42fe_8c5c_6d842368ab21_53bc0ad9a74464510419b37 fb6eb2d361614c24e.png
https://cimg8.ibsrv.net/gimg/pprune.org-vbulletin/750x1334/3cb61ad3_8fe0_426b_8d07_8781cea4ec3b_3cfaf350b1e733d1c302e8e c34b3c5e062eed51a.png
https://cimg9.ibsrv.net/gimg/pprune.org-vbulletin/750x1334/8b9c3969_b5a7_42d1_9c52_23d7b9e54425_7da07e6be85126e015c6047 9cd215819a4eb1162.png

[sandos]

Was it MLAT or not? If MLAT, I would say they were military in nature. Otherwise, test flights? Though thats a lot of aircraft for some testing....

I think they were spying on us here in Sweden! Clearly...

[ETOPS]

Looks like target towing for air gunnery practice....

Maybe this mob?

https://saab.com/air/training-and-simulation/air-defence-training/aerial-target-services/

[futurama]

Was it MLAT or not? If MLAT, I would say they were military in nature. Otherwise, test flights?
Looks like EPOK is (currently) a military only airbase.

[Maoraigh1]

A Learjet was based at EGPE Inverness, Scotland, during a recent military exercise. A large number of pods were in the hangar, attached for various electronic simulation purposes.
Civil contractor for military electronic simulation?
PS Do we know the aircraft type on the squawk is genuine?

[DaveReidUK]

PS Do we know the aircraft type on the squawk is genuine?

In the absence of a flightplan, the squawk doesn't contain any data that can identify the aircraft involved.

The OP, despite posting half a dozen screenshots, has managed to avoid providing any identifying data such as tail number or ICAO24 (perhaps we're being teased).

That said, since the images purport to show both a Learjet 35A and a 36A, they are probably from the fleet operated by GFD (https://www.gfd.de/en/).

[Smythe]

Doesnt look like, with all of the other traffic shown, there was a TFR in place...

[Maoraigh1]

Altitude difference? TFR below civil traffic.

[pr00ne]

There is a huge NATO exercise/deployment ongoing in the Baltic area, this must be linked as adversary provision.