A Bi Slob question

[Bill Hodges]

I am finishing up my new Bi Slob (we won't talk about what happened to the first one).  Like all Slobs, the leadouts come through the strut in an over/under fashion.  The instructions state to put the down leadout on top.  It would seem to make more sense to put the up leadout on top since that matches the handle.

Why put the down leadout on top?  Just curious.

Bill Hodges

[Jim Kraft]

I do not know either Bill. I put my up lead on top on both of the ones I built. Just seems to make more sense to me, but then I may be missing something that the designer knows that I don't.

[Roger Vizioli]

Bill,
Hmmm, I was not sure.
Your question made me go out to the shop to look at my old one.
FYI - up line is on the bottom. Flies okay for me!
Roger V.

[Tim Wescott]

If you roll inward then you'll tend to get up elevator -- unless you're flying inverted.

So put the up lead on top and fly inverted most of the time -- then everything will be fine.

[Roger Vizioli]

If you roll inward then you'll tend to get up elevator -- unless you're flying inverted.

So put the up lead on top and fly inverted most of the time -- then everything will be fine.

Tim,
Good observation! Makes sense to me!  thx!
Hmm, maybe a cross brace on the strut and leadouts at same vertical position might be worth trying? I might config. my old "Slob" to try this, unless someone already has!   ??
Roger V.  

[pmackenzie]

The down line on top might make it less divergent in level flight, but does it really matter ?
A 'slob does not spend much of its time upright and level if you are using it correctly


Pat MacKenzie

(FWIW, my 'slob has the down line on top. I guess i am a follow the instructions kind of guy )

[john e. holliday]

My Bi-Slob is built just like the instructions say to build it.  Maybe a little  more engine off set than some use.  Have never had it come in on me even with the violent loops I do.  Even reverse wing over into the breeze.  Last time out I had a brain fade and decked it, taking out the landing gear and ribs on bottom wing.

[Roger Vizioli]

My Bi-Slob is built just like the instructions say to build it.  Maybe a little  more engine off set than some use.  Have never had it come in on me even with the violent loops I do.  Even reverse wing over into the breeze.  Last time out I had a brain fade and decked it, taking out the landing gear and ribs on bottom wing.

Doc,
you are not the first to do that.
On our scratch builts, we "normally" sheet the bottom of the lower wing out past the gear. dont ask why we now do that! :-)
Roger V.

[Bill Hodges]

Come on, there has got to be someone out there with the definitive answer. 

Finished up the new Slob today.  Now it looks like the weather is going to be unflyable for the next few days.

Bill H.

[John_Craig]

Where is the CG on the BiSlob?

[john e. holliday]

You mean we are supposed to check the C-G?

[Bill Hodges]

I thought checking the CG on a Slob was illegal.

Actually, I would go to the shop and check it but I am out to town right now and will be for a few more days.  Anybody know where the CG should be?

Bill H.

[Jim Kraft]

The plans show just on the back edge of the spar. I think mine balance just a smidgen ahead of that.

[Scott B. Riese]

The more nose heavy the better the turn.....to a point. My 60 ship likes it!