Hi,
Sorry for my poor english.
I start to build a rocket batch only to make canning.
This is the drawing.
I'm chosing a 100mm diam modèle on the Peter data bank
But I want to use coal (start with wood and after the magic dragon is hot, use coal). Why? Because I make a lot of recycling, and some guys give me 2 tonnes of coal.
You can see some pictures
on my blog (link)
Sorry it's only in french
Thank's
the pierre1911