Hi Dan, OSCAR-10 (P3-B) used the same 400N engine as OSCAR-13 (P3-C) and OSCAR-40 (P3-D). For P3-E we have a 200N motor from EADS Astrium, the same one which is used on the European ATV...
I was AMSAT P3-A (planned to be OSCAR-9) which used a solid propellant apogee kick-motor. It's under the water near the cost of french Guiana.. RIP You can find an very good article here: http://www.ka9q.net/AMSAT-Tech-Journal-2.pdf See page 8..15 Rest assured, the PFA and propulsion system was qualified according to highest commercial standards by commercial companies. Thus in no way there would be any risk to the launcher or other payloads. This also includes several levels of safety borders in the hardware design and in the software. The launch agencies have there own specialized personal to review all the details... Without that, nobody would have launched any of the P3 satellites !!! What happened to AO-40 later on after orbit injection and after activating the systems is a completely different matter and did not present any risk to the launcher at any time! Michael R. Lengruesser, DD5ER AMSAT-DL e.V. -- International Satellites for Communication, Science and Education -- mlengrues...@amsat-dl.org http://www.amsat-dl.org In einer eMail vom 22.09.2013 21:07:08 Westeuropäische Sommerzeit schreibt n8...@usa.net: >>The apogee motors for OSCAR-10,and OSCAR-13 were solid propellant >>400 Newton trust motors donated to AMSAT-DL by the Messerschmitt Aerospace >>Company in Germany. Only Phase 3A had a solid fuel motor. AO-10 and AO-13 had liquid fuel bi-propellent motors the same as AO-40. No matter how well designed they are, they still have the potential to blow up the entire launch stack if something goes wrong. Since Dick Daniels is no longer with us, the knowledge has been lost and we will not be launching any more of these in the future. Dan Schultz N8FGV _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
