[Pibwl]

Aircraft:

585 LWS-4A Zubr - correct designation is LWS-6 Żubr (LWS-4A was used in old books and is now declared as wrong). This unit is however in fact redundant - a small series was built and assigned for training only, being inferior to PZL 37 Łoś, not used in combat.
BTW: it has no dedicated icon, but uses Potez 540.

587 PZL P-43 - should be PZL-43 (or PZL-43 Karas). They were produced in 1937 indeed, but for export only (now available from 10/37). Only in 9/39 two aircraft were pressed to Polish service and briefly used. It's rather "what if" unit, but in game terms its only advantage over PZL-23 Karas is 1 MG more, so it might be redundant (the players should rather not treat this plane as a standard one, for it would be inaccurate. Maybe it should be reclassified to 243 Ground attack and used in prototype formation?).

589 SPAD 61 C1 - it could also carry two #193 12kg bombs [book by A. Morgała]. Withdrawn from active use by end of 1931 (now 11/32).

590 SPAD 51 C1 - icon is typical PZL P fighter - better is 2906 (slightly larger, from some bomber, but with similar swept wings), eventually 2903.

592 PWS-A - used in units from 7/30 (now 1/30) until end of 1935 (now 12/34) [book by A. Morgała].

593 PWS-10 - used from mid-31 (now 1/31)

594 PZL P-7a - it was used in units only since spring 1933 (now: 10/32 for unit 594) [book by A. Morgała].

Precisely, units 592-594 used Vickers MGs converted to 7.9mm (earlier units: 7.7mm indeed)

602 PWS-26 - only #193 12kg bombs could be carried instead of 25 kg.
Speed should be max 3 (now 4) (217 km/h - it was a trainer)

603 Lublin R-XIIIA - proper icon is 2925 - all R-XIII, including early models, were camouflaged (as is visible on photos).

606 Lublin R-XIIIG - only #193 12kg bombs could be carried instead of 25 kg.
Speed should be only 2 (now 4) (175 km/h)