djpil
By George would know about the Chipmunk spin saga of the ‘50s – the article from the Aviation Safety Digest back then is included in the ATSB’s report of VH-UPD’s spin accident. We know the instructor was teaching the incorrect spin recovery method. Incidentally, the ATSB noted that the old CASA AFM didn’t have any instructions for spin recovery of the Chipmunk?
There were several factors with this one, e.g. a spin entry experienced with full power while inverted is VERY different from the usual "wings level. throttle closed, stick hard back at 50 kts and apply in-spin rudder" entry. Further, I believe this Chipmunk didn't even have an approved AFM (certainly the only source in the UK has no record of supplying one). This AFM not only discusses spin recovery but has a requirement for a cockpit placard stating "SPIN RECOVERY MAY NEED FULL FORWARD STICK..."