MISSION REFERENCE · SOLID ROCKET MOTOR & MECHANICAL DESIGN
REF·DB
Learn the concept, see it, then run the numbers. A working reference for solid rocket motor hardware — cases, grains, insulation, seals, materials — built so a newcomer can learn it and an engineer can use it.
The route through
PHASE 1 · ◎ORIENTUnderstand the problem1/10 zones in v2 · 1 primerZ1 OVERVIEWP1 HOW A SOLID MOTOR WORKSPHASE 2 · ◈SELECTChoose the material2/10 zones in v2Z11 MATERIALSZ16 DESIGNATIONSPHASE 3 · ▲SIZEStructural design3/10 zones in v2Z25 CASE SIZINGZ26 PROPELLANT GRAINZ27 ABLATIVE LINERSPHASE 4 · ✓VERIFYProve it survives1/9 zones in v2Z35 PROOF TESTINGPHASE 5 · ⊞DETAILDefine the drawing0/6 zones in v2PHASE 6 · ⊕FEATURESSpecify the details1/7 zones in v2Z51 O-RING DESIGNPHASE 7 · ⚙MAKEProduce and inspect1/7 zones in v2Z58 MATERIAL SPECSPHASE 8 · §SPECIFYStandards & release0/5 zones in v2
Start a task
Z11 · MATERIALSWhich alloy should I use?156 materials on a property chart, ranked by what the part actually needsZ25 · CASE SIZINGHow thick does the case wall have to be?Thin wall, Lamé, proof and burst — and the failure mode that governsZ26 · PROPELLANT GRAINWill the grain survive cold soak?Bore strain and bond stress against capability at temperatureZ27 · ABLATIVE LINERSHow thick does the insulation need to be?Erosion, char and soak-back, with the bondline limitZ35 · PROOF TESTINGWhat does the proof test actually buy me?Screened flaw size, life to critical, and the test-rig energyZ51 · O-RING DESIGNWill this O-ring seal at −40 °C?Squeeze and fill at the worst tolerance corner, cold, with the joint openZ58 · MATERIAL SPECSHow do I call this material up on a drawing?Form standard, condition, finish — a copy-ready calloutZ33 · LEAK BEFORE BREAK · v1Does it leak or does it burst?Critical flaw against the wall you just sizedZ34 · RANDOM VIBRATION · v1Will it survive the ride?Miles, and where the damage actually accumulatesZ48 · BOLTED JOINTS · v1How tight do I torque this bolt?VDI 2230, and what the joint does with the loadZ43 · TOL STACK · v1Will my tolerances stack up?Worst case, RSS and Monte Carlo, side by sideZ52 · GALVANIC · v1Can these two metals touch?Anodic index, area ratio and the environment
How every page works
Section titled “How every page works”Every rebuilt zone follows the same flight plan, so once you have read one you know where everything is in the rest: intuition → analogy → diagram → equations → interactive tool → worked example → where it stops → on the drawing → references. Calculations run on unit-tested code, and every worked example is checked by those same tests.