Will there be camera on the side booster? Consider where the nose cone begins, it is hard for a downward facing camera to observe those gird fins.
Looking closely at the inboard nosecones, are those camera pods on each, facing downwards towards the yellow linkage apparatus?
Can someone explain why they didn't use the Tangent Ogive shape of the Ariane 5 booster?
Quote from: clongton on 12/23/2017 12:35 pmCan someone explain why they didn't use the Tangent Ogive shape of the Ariane 5 booster?Maybe it's from the experiences with Titan and Shuttle that have conic booster nose cones. With the nose cones on the Ariane V aerodynamic forces are always going to be pushing the booster into the stage. Maybe the force produced with conic booster nose cones depends on the speed of the booster and can vary more. So harder to deal with.At least that is what I think.
Elon just tweeted this... https://twitter.com/elonmusk/status/944495421161742336
If you liked tonight’s launch, you will really like Falcon Heavy next month: 3 rocket cores & 3X thrust. 2 cores return to base doing synchronized aerobatics. 3rd lands on droneship.3:10 AM - 23 Dec 2017
Because Ariane 5 doesn't care about recovering the side boosters?
Quote from: nacnud on 12/23/2017 12:50 pmQuote from: clongton on 12/23/2017 12:35 pmCan someone explain why they didn't use the Tangent Ogive shape of the Ariane 5 booster?Maybe it's from the experiences with Titan and Shuttle that have conic booster nose cones. With the nose cones on the Ariane V aerodynamic forces are always going to be pushing the booster into the stage. Maybe the force produced with conic booster nose cones depends on the speed of the booster and can vary more. So harder to deal with.At least that is what I think.With that in mind, it is interesting to note the current booster for SLS and the proposed "Dark Knight" configuration...
Also because reducing loads on the core may not be as important to this vehicle as it is to Ariane 5?
Quote from: Lar on 12/23/2017 01:23 pmBecause Ariane 5 doesn't care about recovering the side boosters? Ariane 5 boosters are recovered.
The possibility of refurbishing and reusing the recovered boosters has, however, been rejected. It is currently considered a non-cost-effective option because of the specific design and reliability complications that this would incur. It is currently planned to recover four boosters per year.
Why bother? Seriously. There might be some minor learnings but if you're not even going to TRY to reuse them, it's just a big boondoggle. Some contracts must have been let and then found to be too expensive to cancel, or something.
You could have said the same about reusing the shuttle boosters (snip...)
My only theory is for boundary layer/flow separation symmetry and controllabilty for landing (as it then becomes a "boatail" during entry and approach) and maintain known flight control algorithms from Falcon 9 S1.
They will have off kilter aerodynamics due to the strong asymmetry.
Also it that ULA is moving away from booster nose cones like that (the upgraded Atlas V SRBs have plain conical nose cones), so the benefits of them are clearly not significant.