IR GB Rex monoplane. Proportional rudder only, GM24 co2 on a large tank (runs for over 4mins) 20" span 24g Not very stable when using the rudder but otherwise flew OK. Small rudder and too little dihedral propably to blade for the instability. It is now a F/F machine Co2 motor would sou8nd nicer than and electric geared unit on a vintage model like this What ever happened to Rex anyway? Maybe he had a smaller rudder too ....
Pic of my micro r/c outfit JMP Rx, 4x50ma, Kenway 4:1 KP01 prop, Z Tron speed controller, all suppled by a LT1307 DC/DC.
Pics of my efforts of Rick's style servos coupled to a JMP Rx driven via a DPC (Digital to Pulse Convertor) The DPC's weigh 0.6g each.