Csoda Electro-rubber

 I finished my CSODA Electro Rubber model and it's  ready for the SAM 2025 events.

 

This is a kit that was given to me by Tom Ryan and he got it from PACO Modell in Budapest.  This is the same model company that made the Pelikan

that I’ve been flying for the last year.

I’m also planning on building a couple of other Electro Rubber models that performed well in the World Champs:  SOKOL 465 G and the VEGA 5.

Jay Burkart 

What causes one wing to stall before the other

 

 This will happen when you turn with too high an angle of attack, particularly with  rudder only (as in an OT or RES sailplane) to control your turn. It's not the mysterious "tip stall" that surprises too many.

Tiziano Bortolai's latest Texaco model

O.S. diesel 15x8

 

Playboy Junior

The SAM site lists 5 Playboy Juniors. They differ in scale and aspect ratios. Some are slab-sided and some have 8 longerons like the Playboy Senior

a slab sided Playboy Jr. 46 seen in Slovakia 

 

Slab-sided Junior seen in the photo above.

Playboy Jr. 54 with eight longerons.   
https://clevelandairline.com/

a scaled Junior plan from John Pond

https://outerzone.co.uk/plan_details.asp?ID=15691

Lanzo Racer/PAW.60

Dihedral made simple

Goldberg Sailplane

Restoration complete. For some reason, the Oracover looks wrinkled in the photo but is smooth in person.

1950 Csoda (Hungary)

 Here are a few pictures of the build of the  Hungarian PACO kit called CSODA (Miracle) rubber design for SAM Electro Rubber event.

 

As in the picture it is weighing in at 8.75 oz ready to cover.

The span is 52”, wing area is 235 sq. in. Tom Ryan gave me the kit to build for the event.

 

Thanks Tom,

Jay Burkart 

https://www.pacomodell.hu/rc-modell/antik-modellek-sam/csoda.html?

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