#circle c1 -sqrt(50) 0 0 10
#mkedge c1 c1 pi*1/4 pi*7/4
#circle c2 sqrt(50) 0 0 10
#mkedge c2 c2 pi*5/4 pi*3/4
#wire w c1 c2
#mkplane w w
#trotate w 0 0 0 1 0 0 90
#beziercurve c1 3 0 0 0 2 8 0 0 16 0
#mkedge c1 c1
#wire d c1
#pipe s d w
#save s  8_I1.draw 

restore [locate_data_file 8_I1.draw] s
tscale s 0 0 0 SCALE1
fsameparameter s
explode s E
blend result s 2*SCALE1 s_2 
explode result So
tcopy result_1 result

checkprops result -s 263402