Looking for a modified tarp design with front beak and rear triangle setup that will withstand NZ's mercurial weather. Wondering if this will work or if anyone has sewn or used a similar type shelter:
Ridgeline length: 102"
Baseline length: 96"
Front wall width: 42"
Rear wall width: 24"
Think it's going to take around 4.1 metres or so for this design. May have to put in a catenary ridge line to keep it from sagging and I'll put in a triangle at the end to keep wind and rain out. Wondering if the 42"-24" ridgeline pitch is going to be a bit extreme and how it may affect setting it up.
Would anyone know how to calculate beak measurements for the front? Or have any suggestions for a detachable beak that might also be used as a rain cape?
Here in NZ CN5 cuben (1.68oz/SMSY - $45/metre) or a variety of ripstop nylon ($20-30/metre) is available from a local sailmaker. They kindly offered samples of different weight nylon to test for water resistance, but said some of them stretch quite a bit.
I've looked all over Auckland for silnylon, etc. and this is the only local source for very lightweight fabrics found to date. CN5 (47.6g/SMSY) is the lightest cuben found around here and looks to be similar in weight to 1.43 oz/sqyd offered by overseas suppliers.
Any suggestions, comments or MYOG links greatly appreciated. So far I've searched through this site using "tarp design", "myog tarp", and "myog, Patrol Shelter" and rechecked designs from previous years but have yet to find anything close to this.
Much appreciated and thanks so much!