Thanks for photos.
I've been few times in Kecskemet but never with exposed R-27R-UR on display, pity.
Photos, this last one especially, is the finest what can be found on the Internet. Seams like regular ''star'' configuration, more ore less it should be in line with R-60, R-73, R-24 etc. They all have approximately same D/L ratio and star all way long can give neutral burning.