Not sure how credible these guys are, but I'll post it anyways:"ThunderStruck space is developing air launch with the rocket capable of being launched from a C130 -J130 and a C17. Our own launch vehicle will be a C390 Based at Tahmoor NSW. If we refuel in flight we can do very effective equatorial launches. Solid fuel rockets capable of getting 250kg to launch. 6 years storage life in Conditioned storage facilities. Same day launch with previously verified payloads. Launch over the ocean."
Subsidiary of some defense contractor?
Quote from: john smith 19 on 01/06/2020 05:46 amSubsidiary of some defense contractor?I've talked with the owner, Robert Brand, a few times. He is not a defence contractor, but hopes to be in the future (he has been talking with Defence). His background is in satellite ground stations and more recently small balloon launch and recovery. He is currently launching high powered rockets in the US (up to 3 km so far) that will eventually be used to test his Mars impact probes. His launch vehicle plan is pretty much at the power point stage. If you want to follow what he is doing, join up the Australia and Space Facebook page.https://www.facebook.com/groups/133294990019598/
The US Airforce has been dropping MRBM target missiles out of C-17's for a while to act as targets for anti-missile systems.And there is also the AriLaunch LLC tests
Quote from: mrhuggy on 01/06/2020 10:30 amThe US Airforce has been dropping MRBM target missiles out of C-17's for a while to act as targets for anti-missile systems.And there is also the AriLaunch LLC testsI had not realized dropping missiles out of transport aircraft was an ongoing technical capability. The C17 payload was 32 tonnes but 19 tonnes would still be impressive. Replacing pallets with a shaped wheel system is also quite a neat trick.
Quote from: john smith 19 on 01/06/2020 09:12 pmQuote from: mrhuggy on 01/06/2020 10:30 amThe US Airforce has been dropping MRBM target missiles out of C-17's for a while to act as targets for anti-missile systems.And there is also the AriLaunch LLC testsI had not realized dropping missiles out of transport aircraft was an ongoing technical capability. The C17 payload was 32 tonnes but 19 tonnes would still be impressive. Replacing pallets with a shaped wheel system is also quite a neat trick. We dropped 72,000 lbm (32.65 metric tons), three times, the last from 34,000 ft altitude.
Quote from: HMXHMX on 01/07/2020 12:43 amQuote from: john smith 19 on 01/06/2020 09:12 pmQuote from: mrhuggy on 01/06/2020 10:30 amThe US Airforce has been dropping MRBM target missiles out of C-17's for a while to act as targets for anti-missile systems.And there is also the AriLaunch LLC testsI had not realized dropping missiles out of transport aircraft was an ongoing technical capability. The C17 payload was 32 tonnes but 19 tonnes would still be impressive. Replacing pallets with a shaped wheel system is also quite a neat trick. We dropped 72,000 lbm (32.65 metric tons), three times, the last from 34,000 ft altitude.I know that's not that big in an absolute sense but next to the guy in the photo it sure looks big. Replacing pallets with a fixed wheel run is one of those "obvious when you think about it, but no one did before" little hacks that I like to look out for. Was it ever patented?
Yes.
When Alex Johnson went searching for a high-altitude defence balloon on her family's 2,200 hectare property, it was like looking for a needle in a haystack.The balloon went missing after being launched from the village of Binya in central western New South Wales by aerospace company Thunderstruck Space for the Royal Australian Air Force (RAAF)......Days earlier, aerospace innovator Robert Brand of Thunderstruck Space requested communities to keep an eye out for the balloon after its satellite tracking device failed."In this case it was school holidays and we got a lot of the farm kids motivated with a reward to go out and have a look and they found it," Mr Brand said.......RAAF Wing commander Paul Hay said he was relieved to see the balloon was retrieved and largely undamaged."
Finally something that doesn't have to do with Hybrids.In terms of LVs conventional propulsion like solids are better than Hybrids which is still a relatively new form of propulsion in terms of R&D. I think that hybrids are preferred in the Asia Pacific region just because of laws that hate solid propellants. If start ups could access solid propellants, i think most of them would have gotten out of their power point phase to sub orbital in much less time.
Quote from: Aerojet Rocketdyne RS-25 on 07/11/2020 07:39 amFinally something that doesn't have to do with Hybrids.In terms of LVs conventional propulsion like solids are better than Hybrids which is still a relatively new form of propulsion in terms of R&D. I think that hybrids are preferred in the Asia Pacific region just because of laws that hate solid propellants. If start ups could access solid propellants, i think most of them would have gotten out of their power point phase to sub orbital in much less time.RL started with SRBs, first suborbital flight was from Great Mercury island NZ.
Quote from: TrevorMonty on 07/11/2020 08:38 pmQuote from: Aerojet Rocketdyne RS-25 on 07/11/2020 07:39 amFinally something that doesn't have to do with Hybrids.In terms of LVs conventional propulsion like solids are better than Hybrids which is still a relatively new form of propulsion in terms of R&D. I think that hybrids are preferred in the Asia Pacific region just because of laws that hate solid propellants. If start ups could access solid propellants, i think most of them would have gotten out of their power point phase to sub orbital in much less time.RL started with SRBs, first suborbital flight was from Great Mercury island NZ. In an interview with everyday astronaut, IIRC, Peter Beck's 120km suborbital rocket was a hybrid.
Goes to show how rare solids are in APAC
Not only did Australia's first orbital launch vehicle use solids for the second and third stages, ...