Yes. Shortened Bicycle spokes for the metal parts bound with heavy duty thread and white glue to a 1/4 balsa pushrod. We used to put a hook on the end of the spoke and a matching hole in the wood to make sure that it didn't move.
My models were rather less relaxed than a KK Super 60.
I started with a fibreglass 3 channel fibreglass 60" something (which I never liked as it was heavy and with an Enya 32 underpowered) then a Yamamoto (Irvine 40) then a WOT4 Mk1 48" ( which started with the Irvine 40 and as I had learned my lesson Irvine 61 + Pipe!) then a Vertigo and a Panic biplane. Irvine motors were great except the carbs. They were glass filled nylon and gradually grabbed the throttle barrel ever tighter. I think they gave me a new carb about once a month. Eventually I replaced it with the card off an OS61FSR which someone had destroyed leaving the carb undamaged.
I remember one old guy (probably younger than I am now) who had a super 60. He came down to the field and spent the afternoon telling us off for flying like hoodlums ( which was anything more than a gentle bentley around the field) before finally plucking up the courage for a single flight, This was a few laps of the field always in the same direction before a landing which was, to be fair, always within sane walking distance of where he was stood. Hhappy days.
Now small bits of foam and brushless motors but much more acrobatic than any of the larger planes.
Edited By Chris E on 07/03/2021 10:01:27