Elita-1

[Amandahugnkiss]

It seems like there was also a Gobot named Zero that turned into an airplane.

[Marcotron]

Originally Posted by Amandahugnkiss

I showed a picture of her in the 2020 Transformers purchases thread, and it's the small one that came with Arcee and Chromia, and they all turn into motorcycles. They're the Revenge of the Fallen ones.

So you got the new studio series Arcee twin bikes. I can see how you'd have difficulty transforming that one. It's tiny, fiddly, and doesn't turn into a bipedal homosapien type of robot. If you can ever figure out the combined mode of the three bikes, then you are smarterer than all of us combined.
The power of the primes Elita-1 that turns into a jet is a great one. Head sculpt like the G1 character, and turns into a chest for combiners.

As far as bots with numbers in their names, I put forth Teletran-1. Might not be a robot, but had a role in the show, with spoken lines.

[CobraCommander]

Originally Posted by Amandahugnkiss

Unless you know something I don't, there are only two transforming characters with a number in the name, Elita-1 of the Transformers and Leader 1 of the Gobots.

Johnny 5, he transforms from non-sentient to sentient robot

[Marcotron]

Originally Posted by CobraCommander

Johnny 5, he transforms from non-sentient to sentient robot

Also has a battle mode, complete with red eyes and laser.