The 217H135-12A (H135) is a 36% H 29mm 4-grain reloadable composite motor from Cesaroni Technology Incorporated (CTI).
This motor uses an E-Match igniter.
This reload fits a Pro29-4G motor case.
CTI's White propellant produces a white flame and little smoke.
| Average Thrust: | 129.6000 N | 
| Casing: | Pro29-4G | 
| Certified By: | Canadian Association of Rocketry | 
| Class: | 36% H | 
| Delays: | 3,5,7,8,10,11 seconds (variable) | 
| Designation: | 217H135-12A | 
| Diameter: | 29.0000 mm | 
| Formula: | White | 
| Igniter: | E-Match | 
| Length: | 231.0000 mm | 
| Letter: | H | 
| Manufacturer: | CTI | 
| Name: | H135 | 
| Peak Thrust: | 166.8040 N | 
| Propellant: | APCP | 
| Status: | In-Production | 
| Thrust Duration: | 1.6800 s | 
| Total Impulse: | 217.2090 Ns | 
| Total Weight: | 251.2000 g | 
| Type: | Reloadable | 
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