38mm Nozzle for Experimental Use, sizes #11 thru #15.
Why the extra cost? ; These are the smallest throat sizes we offer. ; Being so small, they require very tedious work with very small tools in extremely tight spaces. ; The exit cones also need to be opened up on about half of these sizes to get a decent expansion ratio, and all this work takes a lot more time than the larger sizes.
Throat ID``s are bored out from standard commercial throat sizes and the entrance is re-radiused.
Made from premium grade ISO molded graphite with excellent resistance to thermal shock and erosion.
Please specify nozzle number or throat size #11 thru #15 or 0.160" thru 0.245" in the comments section at checkout.