def test_11_rafter_530UB82(self):
        ans = mod_des.bld_rafter_deflection(length=16000, force=6.72, E_mod_elasticity=2.1, I_moment_of_intertia=477)
        self.assertEqual(ans['max deflection - distrib load'] , 57.24668064290706) 
        self.assertEqual(ans['max deflection - centre load'] ,  0.005724668064290706)