The J435WS (J435) is a 19% J single-use motor from Aerotech.
| Average Thrust: | 428.1979 N | 
| Certified By: | Tripoli Rocketry Association | 
| Class: | 19% J | 
| Delays: | 6,10,14 seconds (variable) | 
| Designation: | J435WS | 
| Diameter: | 38.0000 mm | 
| Length: | 365.9000 mm | 
| Letter: | J | 
| Manufacturer: | Aerotech | 
| Name: | J435 | 
| Peak Thrust: | 694.6610 N | 
| Status: | In-Production | 
| Thrust Duration: | 1.7810 s | 
| Total Impulse: | 762.6204 Ns | 
| Total Weight: | 624.0000 g | 
| Type: | Single-Use | 
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