The J740G (J740) is a 4% J single-use motor from Aerotech.
| Average Thrust: | 788.1201 N | 
| Class: | 4% J | 
| Delays: | Plugged | 
| Designation: | J740G | 
| Diameter: | 38.0000 mm | 
| Formula: | Mojave Green | 
| Length: | 370.0000 mm | 
| Letter: | J | 
| Manufacturer: | Aerotech | 
| Name: | J740 | 
| Peak Thrust: | 956.5100 N | 
| Status: | Unknown | 
| Thrust Duration: | 0.8440 s | 
| Total Impulse: | 665.1734 Ns | 
| Total Weight: | 724000.0000 g | 
| Type: | Single-Use | 
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