Boeing

My Feedback: (145)

I have acquired a Sebart Wind S Pro 2m. What are you all using as the thrust line/datum line/water line to establish and verify the incidence of the wing and stab? I would normally use the canopy rail to set the datum line when setting the incidences.

Thanks for any information you can provide.
Cheers

Zeeb

My Feedback: (41)

Well since no one else has offered anything I'll pass on what I was told when I asked the same question about my Wind S Pro; the critical measurement is the wing to horizontal stab and not to really worry about a datum line on the fuselage, mostly because as you've found out, there isn't an easily established line on the fuselage.

Jason Arnold

Doesn't this model have a nose ring? That would make a good datum IMHO...

Cheers,
Jason.

Zeeb

My Feedback: (41)

Well yes it does, but if it's for a conventional motor/prop install, the whole front of the nose is canted to the right. If it's a contra fuselage, then it's flat.

Kind of a pain using that as the datum....

Here's the point; those numbers are only a starting reference, then you go fly the thing and trim as needed.