I only recall one G1 episode where Optimus Prime used a jetpack. In More Than Meets The Eye, Part 3 he uses Sideswipe's jetpack to chase after the Decepticons... I'm quite certain there was another episode where he grabbed a jetpack to use whilst inside the Ark...

Are there any other G1 Optimus toys/collectibles with a jetpack accessory?



A higher resolution of this strip is available from my Flickr page.

This is also a good comparison of the Revoltech Series No. 019
Convoy (2007) and the Takara Hybrid Style THS-02 G1 Convoy (2006).