SpaceX CRS-7

In January 2015, the launch was tentatively scheduled by NASA for no earlier than June 13, 2015. This was adjusted to June 22, 2015, then moved forward to June 19, 2015, and adjusted again to June 26, 2015. Subsequently, the launch had been rescheduled to June 28, 2015, at 14:21:11 UTC, from Cape Canaveral LC-40. The launch was scheduled to be the third controlled-descent and landing test for the Falcon 9's first stage. It would have attempted to land on a new autonomous drone ship named Of Course I Still Love You – named after a ship in the novel The Player of Games by Iain M. Banks. The spacecraft was planned to stay in orbit for five weeks before returning to Earth with approximately of supplies and waste. Investigation It is assumed that the capsule, without considering launch failure situations, crumpled and broke up on impact from free-falling. Subsequent investigation traced the accident to the failure of a strut that secured a high-pressure helium bottle inside the second stage's liquid oxygen tank. The COPV bottle containing helium had broken loose and struck the upper dome of the oxygen tank with catastrophic effect. The report from SpaceX pointed out that the stainless-steel eye bolt was rated for a load of , but failed at . An independent investigation by NASA concluded that the most probable cause of the strut failure was a design error: instead of using a stainless-steel eye bolt made of aerospace-grade material, SpaceX chose an industrial-grade material without adequate screening and testing and overlooked the recommended safety margin. ==Payload==

Primary payload NASA contracted with SpaceX for the CRS-7 mission and set the primary payload, date/time of launch, and orbital parameters for the Dragon space capsule. At the time of the launch, the first International Docking Adapter, IDA-1, was scheduled for delivery to the International Space Station on CRS-7. This adapter would have been attached to one of the Pressurized Mating Adapters (PMA-2 or PMA-3) and converted the APAS-95 docking interface to the newer NASA Docking System (NDS). These adapters allow docking of the newer human-transport spacecraft of the Commercial Crew Program. Previous United States cargo missions after the retirement of the Space Shuttle were berthed, rather than docked, while docking is considered the safer and preferred method for spacecraft carrying humans. The subsequent Cargo Dragon missions CRS-9 and CRS-18 brought docking adapters IDA-2 and IDA-3, to PMA-2 and PMA-3 respectively. They have been in use since 2020. Detailed payload manifest A full listing of the cargo aboard the failed mission included: • A Gorilla Suit • Crew Supplies — • 92 Food Bulk Overwrap Bags, 2 Bonus Food Kits, 2 Fresh Food Kits, including custom astronaut food cooked by British chef Heston Blumenthal for British astronaut Tim Peake • Crew Provisions, Crew Care, Operations data file • Utilization — • Canadian Space Agency: Vascular Echo Exercise Band • European Space Agency: Circadian Rhythms, KUBIK EBOXes, Interface Plate, EPO Peake, BioLab, Spheroids, EMCS RBLSS, Airway Mon., LiOH Cartridge • Japan Aerospace Exploration Agency: Atomization, Biological Rhythms, Multi-omics, Cell Mechanosensing 3, Plant Gravity Sensing 3, SAIBO L&M, Space Pup, Stem Cells, MSPR LM, Group Combustion Camera • US: 2 Polars, 6 DCBs and Ice Bricks, 1 MERLIN, FCF/HRF Resupply, HRP Resupply [Kits, MCT, Microbiome, Twin Studies], IMAX Camera, Meteor, Micro-9, MSG Resupply, NanoRacks Modules & 0.5 NRCSD #7, Universal Battery Charger, Veg-03, Microbial Observatory-1, Microchannel Diffusion Experiment, Wetlab RNA Smartcycler, SCK, Story Time, MELFI TDR Batteries • Computer resources — • Projector screen, Sidekick, OCT laptop and power supply, 32 GB microSD cards, generic USB cables, power modules and card readers, preloaded ThinkPad T61p hard drives, CD storage container, network-attached storage devices, XF305 camcorders, RS-422 adapter cables • Vehicle hardware — • CHECS CMS: HRM Watches, Bench Lock Studs, Glenn Harness for Kelly, Kopra and Peake • CHECS EHS: Monitoring Assemblies, Filter Assemblies, CSA-CP/CDM Battery Assemblies, SIECE Cartridge Assemblies, Water Kit, Petri Dish Packets • CHECS HMS: IMAKs, Oral Med Packs • C&T: C2V2 Communications Unit (and HTV-5 Unit Data Converter) • ECLSS: 3 Pretreat Tanks, Filter Inserts, 9 KTOs, UPA FCPA, CDRS ASV, IMV Valve, Wring Collector, Water Sampling Kits, OGS ACTEX Filter, ARFTA Brine Filter Assemblies, / Pressure Sensor, NORS Tank, **3 PBA Assemblies, 2 MF Beds, 2 Urine Receptacles, Toilet Paper Packages, Sensor, Ammonia Cartridge Bag, PTU XFER Hose • EPS: 2 Avionics Restart Cables • Makita Drill, PWD Filter, N3 Bulkhead Connectors, Yellow/Red Adapters, IWIS Plates, 6.0 & 4.0 Waste Xfer Bags, BEAM Ground Straps, JEM Stowage Wire Kit • EVA Hardware — • SEMU, REBA, EMU Ion Filters (4), Equipment Tethers, Gas Grap, EMU Mirrors, Crew Lock Bags, SEMU arms/legs • Lindgren/Yui ECOKs & CCAs, Lindgren LCVG • Kelly LCVG, Padalka EMU Gloves • Russian Cargo • Russian Segment Torque Wrench • Unpressurized Cargo — • International Docking Adapter #1 The mission would have transported more than of supplies and experiments to the International Space Station including the Meteor Composition Determination investigation which would have observed meteors entering the Earth's atmosphere by taking high resolution photos and videos. The Center for the Advancement of Science in Space had arranged for it to carry more than 30 student research projects to the station including experiments dealing with pollination in microgravity as well as an experiment to evaluate a sunlight blocking form of plastic. ==Planned post-launch flight test==

'' floating landing platform prior to the launch After the second stage separation, SpaceX planned to conduct a flight test and attempt to return the Falcon 9's nearly empty first stage through the atmosphere and land it on autonomous spaceport drone ship Of Course I Still Love You. This would have been SpaceX's third attempt to land the booster on a floating platform after earlier tests in January 2015 and April 2015 were not successful. The boosters were fitted with a variety of technologies to facilitate the flight test, including grid fins and landing legs to facilitate the post-mission test. ==See also==