Zogling SG 35

[Roger-Spragg]

I have various model drawings for the Zogling SG 38 and am hoping to find some, preferably engineering/factory drawings of the SG 35. If anyone can give ma a steer I would be most grateful. I like this old stuff and just fancy having a go at it!!

[Jilles]

I had a look on the Web and cannot find much difference between the SG35 and SG38. In many descriptions they are both mentioned in one breath
In any case it is a worthwhile project. As mentioned before I built a scale 1:4 of the Dutch version called ESG. In performance it is not a glass glider but is not flying bad at all. longest flight at this stage is 30+ minutes

[GordonT]

I don't know if you've seen the following links, but they might help a bit -

http://www.schulgleiter.de/
http://www.schulgleiter.de/sg38-gallery.html
http://www.rcgroups.com/forums/showthread.php?t=1164786
http://static.rcgroups.net/forums/attac ... -SG-38.gif

As has been said, there's little difference between a 35 and a 38, with local variations coming into play as well. Best to find one example that has enough information about it available and model that.

[Roger-Spragg]

There are small country variations and type designations from the basic SG 38 as far as I can see so far. The SG 35 has a small cockpit, that is the main difference, all else is similar. This may turn out to be wrong as I delve further.... Research is fun......!!!

Thanks for the steers. I have seen those plans but didn't have the full size in my possession so thanks for those Cliff.

Jilles, I hadn't seen the Dutch, ESG, version. For such a draggy model, to get 30+ minutes, you have either built it super light or get some super lift over there!!! Looks very nice. Very encouraging!

Thanks Gordon. There's some stuff there that is new to me and I'm going to enjoy picking through it.

Watch this space!!

[GordonT]

Roger, my SG-38 was built from Cliff's plan, but scaled up to 3.5m span. Cliff also cut me a set of wingribs. I'm delighted with the way that mine flies and it does thermal well when I can find one! Here's a video of mine - https://vimeo.com/98908223

[Jilles]

The ESG model is just over 4kg. The sink rate is not much but no penetration to speak off.
moderate lift is sufficient to make it go up
Some pictures attached of the only sample still flying in Holland. The major difference with the ZÖgling is that the pilot was located inside the A-frame.
With the post in front of the pilot there was a reference to the horizon. Stories that go around are that student made a pencil mark on this post to line up with the horizon to get the proper flying speed. No instruments were fitted in the past unlike the sample still flying. On the sample still flying they fitted a T-bar to the front post for the same reason.
The "fuselage" we called in Holland the "bath tub" The ESG had one that could be fitted when required. it had a door at the side.
The Bath tub was fitted for more experienced students to learn side slips. with the bath tub fitted it created more drag so the side slip was more effective.
Not sure why one wanted to side slip these gliders, at normal flying the sink rate was only surpassed by a brick