4 ms·
Boom were previously targeted a cruising speed of Mach 2.2, I wonder why they lowered it to Mach 1.7 with the latest design update. Might be related selecting
by phire 4y ago
Boom were previously targeted a cruising speed of Mach 2.2, I wonder why they lowered it to Mach 1.7 with the latest design update.
Might be related selecting an engine. The previous version of the design had a fantasy engine that didn't exist (I think the specs came from a military engine that they couldn't use due to export restrictions), but now they are working with Rolls-Royce, and appear to have actually selected an engine design. It must be smaller than what they originally wanted, because they moved from a 3 engine design to a 4 engine design.
- lettergram 4y agoTo me that sounds like a fuel saving option. Might extend the routes.
- baby 4y agoExport restrictions are not just messing cryptography!
- twic 4y agoMaybe military engine control systems work by sending PGP-encrypted emails to the fuel valves?
- mrcartmeneses 4y agoBut helping mute the airforces of Russia and China
- galgot 4y agoSupersonic heat also. Concorde was in Aluminum and at 2.1 mach it was at the very limit of what could be done in aluminum. Which required a very "tight" design, engineering marvel in fact. Go faster and one have to go for titanium, which is much more difficult to work with and manufacture.
- hinkley 4y agoDidn't the Blackbird weep jet fuel because the seals couldn't hold when the skin was at ambient temperature? I heard they put enough fuel in it to take off and get up to temperature and then refueled it in the air for safety reasons.