The A model canopy latch can be fitted to the Onex with a little modification provided that the throttle is not set too high, in which case the latch and throttle will interfere. The rear fitting latch was designed with the help of Onex flyer Tom Helm to overcome these problems. It fits at the rear of the canopy and can be operated from the inside with one hand. It is also suitable for fitment to the Sonex A model.

Here’s a link to the latch in operation in Tom’s Onex:

Price for the rear fitting latch A$190