It's tempting to hold the direction opposite to your trajectory (get hit up, hold straight down), but that actually does nothing. Think of DI as yanking yourself out of a tractor beam. In this case, Fox did not "DI" Marth's Up-Throw had he done so, he could have wound up near the edge of the stage, or equally far behind Marth. If the move hits you straight upward, hold left or right. While in Hitstun (you just got hit and can't act temporarily), hold the control stick in a direction PERPENDICULAR to your trajectory. To quote Futurama: "Instead of shooting where I was, you should have shot where I was going to be." Super Smash Bros Melee Walkthrough - Super Smash-Bros-Melee 155ĭirectional Influence: Used to affect your trajectory after getting hit, both to both escape combos and to survive much longer when hit by potential killing moves. Also called "zoning" in most other fighting game communities. Without proper spacing (and timing), all of your attacks become useless. Spacing: The concept of aiming to hit the opponent with the farthest reach of your attacks, keeping yourself optimally safe while swinging for a hit.
Super Smash Bros Melee Walkthrough - Super Smash-Bros-Melee 154 This list is by no means exhaustive and is in no particular order (the order of importance varies by character and matchup anyway), but any prospective Melee player will need to master all of these skills to truly be able to compete. 6 - Advanced Techniques and Protips Super Smash Bros Melee Walkthrough - Super Smash-Bros-Melee 153īy the way, I've actually been playing Melee competitively in tournaments for several years now, and I thought it would be nice to include a general overview of some of the game's most important advanced techniques. At least, I sure hope it will.You can jump to nearby pages of the game using the links above. Fully and rapidly reusable launch vehicles combined with on-orbit refueling will make big boosters obsolete. The Saturn V was an amazing machine, but it was the product of a by-gone era. Would you believe, 47,850 kg? Almost 48 tons, surely that's enough!
How much actual payload is thrown to Mars transfer orbit? The second stage ignites and provides the remaining 2838 m/s of delta-v. Suppose the first stage provides 1463 m/s of delta-v before separating and falling away.
Falcon dthrow vs uthrow spacie tech chase plus#
Both require 70 tons of fuel, so you're only doubling the total number of Falcon 9 Reusable flights, plus whatever you need to get the massive new payload into low Earth orbit. What if a 13 ton transfer vehicle and a 9 ton crew return vehicle - 22 tons total to Mars transfer orbit - isn't enough? That's okay, just stage together two Falcon 9 v1.1 second stages. There's some challenges in transferring liquid oxygen in zero-g, but they're minor compared to. What's that? You want more? Okay, let's say ten flights. Still not enough? Okay, let's say nine flights. So let's say eight Falcon 9 Reusable tanker flights total. However, part of the fuel is cryogenic - the liquid oxygen - and some of it may boil off depending on the length of the launch campaign. We'll need about 70 tons of it, and at 10 tons per Falcon 9 Reusable flight, that's seven flights. This is what you'd expect, as SpaceX is designing the Falcon 9 Reusable to reduce the cost of ferrying crews to the space station. The expectation is that the Falcon 9 Reusable will have about 25% less payload to orbit capability as it does acting in expendable mode - that is, about 10 tons, so the crew launch vehicle will not have to be expended. As it turns out, this is about the mass I'd estimate for a minimal Dragon-based Earth return capsule, so we'll assume the crew come and dock with the 13 ton Mars transit vehicle later. Also the typical payload to low Earth orbit of the Falcon 9 v1.1 is only about 13 tons, leaving us 9 tons of Mars-bound payload short. The hitch, of course, is that the second stage gets to orbit empty (well, with some unknown ullage) and must be refueled before it can be sent off to Mars. This alone is probably sufficient to do a great Mars mission. This is a very impressive propellant mass fraction of 93.5% and with its single Merlin 1-D engine delivering a specific impulse of 340s it can throw 22 tons on a fast transit (just over 6 months) to Mars (a delta-v of 4.3 km/s).
According to the best public numbers I can find, the second stage of the Falcon 9 v1.1 has a dry mass of 4,900 kg and launches with a propellant load of 70,800 kg.
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