HOME ACE ACE MAX PPU TESTING MANUFACTURING TEAM LEARN MORE AN ENGINE FOR EVERY CONSTELLATION. APOLLO CONSTELLATION ENGINE (ACE) Xenon and Krypton electric propulsion system with best in class performance for spacecraft with less than 1 kW of power. ACE MAX Xenon and Krypton electric propulsion system with a magnetically shielded thruster and 1.5 MN-s total impulse for spacecraft with more than 1 kW power. ACE SYSTEM ACE Max Xenon, Krypton PROPELLANTS Krypton, Xenon 400 W INPUT POWER 1,450 W ~25 mN (Xe) ~18 mN (Kr) THRUST ~60 mN (Xe) ~54 mN (Kr) ~1,400 s (Xe) ~1,300 s (Kr) SPECIFIC IMPULSE ~1,760 s (Xe) ~1,800 s (Kr) 300 kN-s (Xe) TOTAL IMPULSE 1.5 MN-s file_download DOWNLOAD DATASHEET file_download DOWNLOAD DATASHEET COMPLETE SYSTEMS AVAILABLE WITH OUR PARTNERS Compact thrusters ACE and ACE Max include an instant-start center mounted cathode and compact design. Each thruster leverages the past 50 years of Hall thruster research in a clean sheet design with major innovations. Rad hardened PPU The Apollo PPU (Power Processing Unit) is radiation hardened by design, replacing many microprocessors with simple and reliable components. Its single circuit board design is 95% efficient. Feed systems with heritage Apollo’s krypton configurations include gaseous feed systems in single and multi-thruster configurations with flight-proven components from a respected industry partner with heritage. COPV propellant tanks Apollo’s krypton configurations include tanks sized to fit the unique requirements of each customer mission with flight-proven COPV construction rated to 2,700 psi or 4,000 psi. WHY CONSTELLATIONS PREFER APOLLO Our thruster, PPU, and feed system have been designed and tested to work together Our performance specifications often exceed requirements from constellation primes Our manufacturing partner is ISO9001/AS9100 certified and US-based Our systems can be delivered as an integrated, tested propulsion module Our US-made propulsion system is attractive to US government customers TESTED TO MEET OR EXCEED ALL CUSTOMER REQUIREMENTS Apollo and our suppliers are completing qualification testing in line with ESA, MIL, and ISO standards. Test flow plans, test order, test procedures, and test levels are set to meet or exceed the performance, physical, electrical, environmental, thermal, and radiation requirements set by customer agreements. Learn more HIGH VOLUME, HIGH RELIABILITY ACCEPTANCE TESTING FACILITIES Apollo's research and development lab has five vacuum chambers and one thermal-vac chamber, allowing for hundreds of tests per week. This has enabled the development of new system designs in weeks instead of years. These facilities are fault-tolerant by design and able to grow to enable acceptance testing of hundreds of systems per month. Learn more MANUFACTURED IN THE USA Apollo has partnered with a high-volume aerospace manufacturing partner based in Silicon Valley. Apollo’s manufacturing partner specializes in high reliability aerospace and defense products and has the capacity to produce hundreds of units per month to Apollo Fusion customer specifications. Learn more Manufacturing partner is ISO9001, AS9100 certified Manufacturing process based on statistical process control Apollo has offices on-site at manufacturing partner facilities ABOUT APOLLO FUSION Apollo Fusion is a venture-funded small business led by Mike Cassidy (CEO and co-founder). Mike previously co-founded four successful startups and was a Vice President at Google where he led Project Loon, a high-altitude balloon telecommunications system using Free Space Optical Communications. The Apollo Fusion team includes domain experts in electric propulsion, Hall thrusters, aerospace engineering, systems engineering, electrical engineering, and software engineering. Our team has designed and built hardware on over 400 spacecraft that have reached orbit. Planning a constellation? Reach out to us at info@apollofusion.com and let's talk. © APOLLO FUSION, INC. CONTACT US LINKEDIN BACK TO TOP