Mal Low provided base design Puffer for Playground Attraction
Capt. Mal Low, N.A. provided Design 543WY as the basis for full size playground attraction built by Richter Speilgeräte GmbH in Frasdorf Germany.  This was a fun project and the smiles on the children’s faces tell it all.  Richter Spielgeräte GmbH builds wonderful playground equipment in the EU, sadly our OSHA here in the U.S. would ruin them with their arcane rules that protect us from ourselves.  See the pictures below.  Click here for other projects.
A real flat bottom!  And notice how handy portholes can be.
And, of course, the all important stability test.