Yes, and no...OR will do tube fins too, should be able to handle a Pegasus I would think. K'Tesh?
By request, here's the ORK file that goes with the above pics.
NOTE: This file is for a BT20/BT5 based downscale- not the original, which I believe was BT55/BT50 based. (Tube reference double check... yep) It's less than ideal in several ways, and would make Jim/K'Tesh weep with sorrow. Your milage may vary.
View attachment 308343