This month, the LOOTM is a classic motor-glider. The Sportavia-Fournier RF-4 single-seater and the tandem RF-5. Powered by a relatively small VW derived engine, 39 HP in the -4, and 68 HP for the -5), their light weight and clean lines gave good performance. Either aircraft cruised at around 110 mph with a glide ratio of 22:1 (RF-4) and 20:1 (RF-5) with the engine stopped.
I've always been partial to the aerobatic RF-4 for its lighter weight, slightly prettier line (purely subjective) and economy of operation. They are quite rare in the US but one does come available every so often.
The LOOTM for September
and its larger sibling