What's the current status of JMB and the Phoenix??

[AlanKoz]

Subject: Phoenix U15 (NG) – updated wing/rudder design and owner experiences with JMB?

Hello everyone,

I am reaching out to the Touring Motorglider community to better understand the current status of the Phoenix U15 (NG), particularly regarding any recent design updates.

I have heard references to new carbon wing structures and possible refinements intended to address earlier discussions about rudder flutter and wing flutter margins at higher speeds. If anyone has recent delivery experience, engineering information, or flight test feedback on the updated configuration, I would be very interested to learn more.

In particular:

• Has anyone taken delivery of a recent Phoenix U15 NG with the revised wings or tail surfaces?
• Have any formal flutter analyses or flight test results been shared with customers?
• Have operating limitations (e.g., Vne) changed with the updated configuration?
• Has anyone had recent experience working with JMB Aircraft regarding timelines, communication, or technical documentation?

I continue to believe the Phoenix concept is very appealing as a high-performance touring motorglider, and I hope the recent engineering work has strengthened the overall safety and long-term support framework for owners.

Any information or perspectives would be greatly appreciated, either posted publicly or via private message.

Thank you very much in advance.

[AlanKoz]

And some information can be found here --  Truncated copy of demand letter sent to JMB.  Buyer beware!

2026.02.24 JBM Aircraft LLC truncated demand letter.pdf