Impactiq,

thanks for the back history. It would be great to assemble some pictures of all these versions. Do you suppose DH has plans for them?

To what extent are there (full) plans for the versions you have been able to collect? I'm really interested to see how the wing planforms and tail moments have changed from one version to the next. I guess the tunneled Tipo in the pictures below must be the 850. The one beside it looks like it has a larger wing too and what appears to be a concealed pipe in the fuse top. I believe at least one of these belonged to Steve Helms. Both still show what looks like ~2" of anhedral having lost the 720's 4.5". I wonder how much the Tipo+ differed from Dave Brown's Illusion - they both had 750 squares.

On closer inspection, they both appear to have alum backed CB spinners and MK nylon props! The 850 looks like it has a blackhead Webra with a Dynamix carb.

Would you be able to show some snaps of the plans and/or fuses from your collection?

David.