HEI - Head End Ignition

Please review the HEI Information page to get a general overview. 

For staged rockets, the second stage has to be ignited near Vacuum space. We need a system that can raise the pressure in the chamber while increasing the temperature to reach combustion conditions.

Design Changes and Verification

Forward Closure

Write about wall thickness and fillets. Include pressure calc. An FEA would be neat

O - Rings

We changed to 230 and 229 O rings. Verify all O rings including 121 and 122

Igniter Grain

No Change, show open motor curve and talk about funny canted nozzles

Bolts

verify bolt calculations

Manufacturing

include drawings of all parts, where we get them from, and how to machine it

Integration

Custom E-Matches

Saftey