Are Ares I, IV, V and Altair, NASA's next space vehicles, reusable?

Question

Are the new Saturn V-style Ares rockets reusable in any way? Is the Altair lander?

Answer 1

Yes, the Ares I, IV, and V are reusable, but not the Altair lander.

"Project Constellation is a NASA program to create a new generation of spacecraft for human spaceflight, consisting primarily of the Ares I and Ares V launch vehicles, the Orion crew capsule, the Earth Departure Stage and the Altair lunar lander.[1] These spacecraft will be capable of performing a variety of missions, from Space Station resupply to lunar landings.

Most of the Constellation hardware is based on systems originally developed for the Space Shuttle, although Orion's two-part crew and service module system is heavily influenced by the earlier Apollo Spacecraft, and it uses engines derived from the Saturn V and Delta IV rockets. Proposed Constellation missions may employ both Earth Orbit Rendezvous and Lunar Orbit Rendezvous techniques.

NASA has formed the Constellation Program to achieve the objectives of maintaining American presence in low Earth orbit, returning to the Moon for purposes of establishing an outpost and laying the foundation to explore Mars and beyond in the first half of the 21st century.[2] The Constellation Program's heritage rests on the successes and lessons learned from NASA’s previous human spaceflight programs: Mercury, Gemini, Apollo, Skylab, Space Shuttle and the International Space Station (ISS).

Spacecraft

Orion will consist of two main parts, a Crew Module (CM) similar to the Apollo Command Module capable of holding four to six crew members, and a cylindrical Service Module (SM) containing the primary propulsion systems and consumable supplies. The Orion CM will be reusable for up to 10 flights, allowing NASA to construct a fleet of Orion CMs.

Current plans call for the phased introduction of Orion variants tailored for specific missions. The Block I Orion will be employed for ISS crew rotation and resupply and other Earth orbit missions, while the Block II and III variants will be designed for deep-space exploration.

Launch vehicles

As currently envisioned, the Orion spacecraft will be launched into a low earth orbit using the proposed Ares I rocket (the "Stick"). Formerly referred to as the Crew Launch Vehicle (CLV), the Ares I consists of a single Solid Rocket Booster (SRB) derived from the boosters used in the Space Shuttle system, connected at its upper end by an interstage support assembly to a new liquid-fueled second stage powered by an uprated Apollo-era J-2X rocket engine. The Orion spacecraft would be lifted into orbit atop this "stack", while a larger launch vehicle (the proposed Ares V) would be used to launch the heavier Earth Departure Stage and Altair.

In January 2007, NASA announced that a different launch vehicle design, the Ares IV, was actively under consideration for the program. If chosen, the Ares IV might replace both the Ares I and the Ares V launch vehicles for some Constellation launches at later dates, or all of them altogether.

Altair

Altair (formerly known as the Lunar Surface Access Module, LSAM) will be the main transport vehicle for lunar-bound astronauts. Like its Apollo Lunar Module (LM) predecessor, Altair consists of two parts: an ascent stage which houses the four-person crew, and a descent stage which has the landing legs, the majority of the crew's consumables (oxygen and water), and scientific equipment. Unlike the Apollo LM, Altair is to touch down in the lunar polar regions favored by NASA for future lunar base construction. Altair, like its Apollo predecessor, is not reusable and is discarded after use.

Earth Departure Stage

The Earth Departure Stage (EDS) is the main propulsion system that will send the entire Orion/Altair stack from low Earth orbit to the Moon. It will be launched on an Ares V rocket; Orion spacecraft will launch separately, rendezvous and dock with the EDS/Altair combination, which will then be configured for the journey to the Moon. This method, known as Earth orbit rendezvous, was considered by NASA for the Apollo program in the early stages of planning, but was dropped in favor of the lunar orbit rendezvous approach.

Mission profiles

Like that of the Apollo Program, Project Constellation will involve its main vehicle, the Orion spacecraft, flying missions in Low-Earth Orbit (LEO), with an emphasis of servicing the International Space Station and, in conjunction with the Altair lunar lander and Earth Departure Stage, on flights to the polar regions of the Moon. As of 2008, there are no well-defined plans for a manned flight to Mars, as flights to the Red Planet will most likely not occur before 2030, but a mission to a Near-Earth asteroid is in the initial planning phases.

Answer 2

Only the first stage of the Ares I is reusable.

The Ares V is the heavy lifter and will not be reusable.

The Ares IV will use the first stage of the Ares V and the upper stage of the Ares 1 so it will not be reusable either.

The Altair lander will not be reusable and will probably be crashed into the Lunar surface after its crew leaves via Orion.

The Orion ship which will do the actual moving of crew through space will be reusable for up to 10 flights.

Answer 3

It's a moot point. Since they will never be used, it doesn't matter if they are reusable.