Interstage Coupler 2.5

To use an IS-3000 system, the booster needs 3" (regardless of diameter) at the top, just like a regular rocket would for a payload coupler or nosecone shoulder. The sustainer (upper stage) also requires 3" clear at the bottom. Click here for a PDF file that illustrates design requirements for the upper stage. Click here for a file that shows design requirements for the Terrier IS3000.

• Easy to assemble
• Easy to prep
• Standardized design allows easy timer swapping into other Interstage 3000 equipped rockets.
• Designed to be used with the PML AccuFire Staging Timer on the Electronics Page. Can also be used with Transolve ST-2b timer.
• Includes everything shown in drawing "Interstage 3000 System" above, except timer.
• Easy to follow, detailed instructions