It was at this precise time that Helena completely forgot that Claudia was even there, despite the younger woman sitting on the bike that Helena was looking over. What she was paying attention to was the machine itself. As Anakin described how the power generators and turbothrusters worked, Helena moved to the aft of the craft and bent down to examine what he was talking about, tucking her hair behind her ears. There were words in his explanation that she didn't understand, but it wasn't hard to put their meaning into context and relate them to things she knew about. As such, she followed Anakin's explanation without much trouble. Her interest was completely piqued by now.
Once he finished explaining how it worked, Helena stood back upright and looked at Anakin. This machine was completely marvelous. And then there was the invitation for her to help him as he worked on it. At that, her eyes lit up completely, unable to keep a lid on her enthusiasm for these sorts of things. "I would be more than happy to assist you, as long as you do not mind. I once worked on a rocket meant for travel in space, but my partner and I had trouble finding a power source." Which had ended up being the Joshua Horn, but Helena wasn't about to get into those unsavory details. So really, while she didn't fully comprehend jet propulsion or turbothrusters, it wasn't hard for her to grasp the basics. She was a very quick study when things were explained to her, so she could indeed keep up with Anakin in this matter.
"Though I would assume this is only one of many things you have built?" Because a man who spent such time building this craft undoubtedly built many other things along the way. One did not simply start big until they had confidence in their abilities. Well, usually.