On Monday will be available new WAK by Lech Kołodziejski (f.e. Żubr, Wilk, P.11a, MS.406C1, ...). Lublin R-VIIIa was Polish recon-bomber aircraft from the early 1930s. It's a large single-engine biplane (model wingspan over 20 inches) also used in the hydro version (that version was published in Cardplane in 2005).