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How to gain a "Ion Cannon" and the "Air Craft"?

The Undorling are supposed to give you the stuff.

First, you got to help the Erans. Meet them with a Trade ship or a fleet ( as you wish ).
Send sattelites on Antares 2 and on the moons. Build a colony on moon 1 or 2 ( check your analysis ).
Construct windtap, building and especially the observatory; it will tell you if the sun is going supernova.
After a moment, you learn that you got to send spaceship to evacuate your colony, do so ( just use one of the same ship as above and go at your colony, I use the trade ship ).
The Erans will learn about your moving and will want to talk to you. Help them.
Then meet the undorlings ( they have a comet as a symbol ).
Go at your bar and talk to the Eran, and ask him to use his ability to shapechanging on the Undorling and wait his success.
Not only the Undorling will quit the league but the they will give the plans you're looking for but you'll the reasearch them though.
I don't think the aircraft is a random invention, I already knew in a magazine that the Undorlings give you some stuff. The Ion Cannon will give you extra defense on your planet.