This Mercury IV R/C aircraft model was built by Robert Maine using plans from 1953 by R.H. Smith. The model airplane was never flown. It’s powered by an OS .40 engine. The Mercury IV has a 96” wingspan.
This Mercury IV R/C aircraft model was built by Robert Maine using plans from 1953 by R.H. Smith. The model airplane was never flown. It’s powered by an OS .40 engine. The Mercury IV has a 96” wingspan.