Malfunctioning Engine Statistical Survey
M.E.S.S.

Latest Reports

The last 21 motors with failure reports and the top 25 reported motors of all time. For more detailed search, see the search page.

Most Recent
ManufacturerMotorTypeLastCount
Estes IndustriesC5SUJul 4, 20265
Estes IndustriesD12SUOct 11, 202512
AeroTechC18SUOct 11, 20251
Quest AerospaceD16SUOct 7, 20251
Estes IndustriesE12SUOct 4, 20252
AeroTechC11SUOct 3, 20251
Estes IndustriesC6SUSep 23, 20255
Cesaroni TechnologyK570reloadSep 21, 20251
Quest AerospaceE26SUSep 18, 20253
Estes IndustriesA10SUSep 13, 20252
AeroTechM1780reloadAug 31, 20251
Quest AerospaceC18SUAug 31, 20251
Quest AerospaceD20SUAug 17, 20252
AeroTechF41SUAug 10, 20251
AeroTechE18reloadAug 9, 20251
AeroTechF25SUAug 9, 20251
AeroTechK1100reloadAug 9, 20251
AeroTechK1800reloadAug 2, 20251
AeroTechF67SUJul 26, 20251
Quest AerospaceB14SUJul 26, 20251
Piotr Tendera Rocket MotorsD20SUJul 17, 20251
Top of All Time
ManufacturerMotorTypeLastCount
Estes IndustriesE12SUOct 4, 2025328
Estes IndustriesD12SUOct 11, 2025194
Estes IndustriesE9SUOct 26, 2024193
Estes IndustriesA10SUSep 13, 2025136
Estes IndustriesC6SUSep 23, 202585
Estes IndustriesF15SUJun 28, 202555
Estes IndustriesC11SUMar 7, 202552
Estes IndustriesA3SUMar 30, 202551
Estes IndustriesE16SUJul 5, 202536
Quest AerospaceC12SUDec 21, 202435
Estes IndustriesC5SUJul 4, 202628
Estes IndustriesB6SUMay 10, 202525
Quest AerospaceD16SUOct 7, 202522
Quest AerospaceD20SUAug 17, 202519
AeroTechG40SUAug 25, 202418
Estes IndustriesA8SUJun 16, 202418
AeroTechF44SUMar 31, 202517
AeroTechG79SUNov 11, 202416
AeroTechF32SUSep 23, 202216
Quest AerospaceC18SUAug 31, 202515
Quest AerospaceE26SUSep 18, 202514
AeroTechF50SUMar 23, 202513
AeroTechG80SUNov 2, 202413
AeroTechG76reloadDec 14, 202412
AeroTechG77SUMay 15, 202112

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