$\begingroup$ @RussellBorogove I'm asking about aerobraking, although now that I understand the distinction, I'm interested in aerocapture as well. It seems like even in tenuous atmospheres, aerobraking can be done over many orbits, but still, it doesn't seem that aerobraking was used at all for the lunar missions.

In more recent missions, such as Mars Global Surveyor (MGS) [8] and Mars Reconnaissance Orbiter. (MRO) [9], a MOI of 1 km/s was supplemented by aerobraking

spacecraft aerobraking. Fig 1. Aerobraking. aerocapture. Fig 2. Aerocapture.

Aerobraking and aerocapture (see below) are useful methods for reducing the propulsive requirements of a mission and thus the mass of propellant and tanks. Aerobraking is using atmospheric drag to slow down. Aerocapture is using the right amount of aerobraking to slow down enough to get captured into orbit from interplanetary speeds, but not slow enough that you can't stay in orbit and must land. 2019-10-07 What is Aerocapture: is first of all a very rapid process, requiring a heavy heat shield resulting in high g-forces, Descent into a relatively dense atmosphere is suffciently rapid that the deceleration causes severe heating requiring What is Aerobraking: is a very gradual process that has the Into 300 x 300 km Venus orbit w/constant launch vehicle, Aerocapture delivers: ¥1.8x more mass into orbit than aerobraking ¥6.2x more mass into orbit than all chemical Aerocapture is a subcategory of aerobraking. Atmospheric drag is used to reduce velocity to a point the vehicle can enter a stable orbit with a minimum or no propellant burn.

Aerobraking används när ett rymdfarkost kräver en låg omloppsbana efter att är inte så allvarliga som de för atmosfärisk återinträde eller aerocapture . över en ren tyngdkraftsassistent , vilket resulterar i ett större delta-v .

The paper examines the utilization of aerodynamic forces to capture a vehicle into a closed orbit and/or to modify an orbit. Attention is given to two techniques: aerobraking which uses drag during successive passes through the upper atmosphere to circularize a highly elliptical orbit, and aerocapture which transfers a vehicle into a closed stable orbit from a hyperbolic flyby trajectory. The main reason behind the selection of this research methodology is to give detailed knowledge about Trajectory of spacecraft in aerobraking.

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You're using "air" as your ship's "brakes". Aerocapture is a sub-category of aerobraking.

You're using "air" as your ship's "brakes". Aerocapture is a sub-category of aerobraking. This is usually used in the case of interplanetary transfers to a planet with an atmosphere, such as from Kerbin to Duna. While aerocapture is used for inserting a spacecraft into orbit from a hyperbolic trajectory, aerobraking is used for reducing the apoapsis of a spacecraft that is already in orbit. Comparison of aerocapture and aerobraking What is Aerocapture: is first of all a very rapid process, requiring a heavy heat shield resulting in high g-forces, Descent into a relatively dense atmosphere is suffciently rapid that the deceleration causes severe heating requiring What is Aerobraking: is a very gradual process that has the (Aerocapture, a close cousin of aerobraking, is an as-yet-untested technique that would use the friction of a planetary atmosphere to actually capture a spacecraft into orbit.
Lena lilleste

Aerobraking is the general term for smacking your ship into a planet's atmosphere to use friction to reduce speed.

Aerocapture maneuver is very sensitive to uncertainties; thus in order to ensure a successful aerocapture maneuver, vehicle control authority is required. What is Aerocapture: is first of all a very rapid process, requiring a heavy heat shield resulting in high g-forces, Descent into a relatively dense atmosphere is suffciently rapid that the deceleration causes severe heating requiring What is Aerobraking: is a very gradual process that has the Aerocapture is a subcategory of aerobraking. Atmospheric drag is used to reduce velocity to a point the vehicle can enter a stable orbit with a minimum or no propellant burn. Aerocapture can be the prelude to descent and entry into the atmosphere.
Erik broms

Using aerobraking to rid yourself of 'all your velocity' (interplanetery velocity, relative to the orbital motion of the target planet) is called aerocapture.This has never been attempted before, and would require prescise atmospheric targetting (to within a few kms), precise details of the atmospheric density parameters, and perfect understanding of the spacecraft's atmospheric behaviour, all

Fig 1. Aerobraking.

PDF | On Aug 4, 2020, Ye Lu published Aerocapture, Aerobraking, and Entry for Robotic and Human Mars Missions | Find, read and cite all the research you need on ResearchGate

Attention is given to two techniques: aerobraking which uses drag during successive passes through the upper atmosphere to circularize a highly elliptical orbit, and aerocapture which transfers a vehicle into a closed stable orbit from a hyperbolic flyby trajectory. The main reason behind the selection of this research methodology is to give detailed knowledge about Trajectory of spacecraft in aerobraking. This research methodology also gives the knowledge about the various scholars and who had previously carried research on the topic (Dunham & Davis, 1999). Into 300 x 300 km Venus orbit with same launch vehicle, Aerocapture delivers: • 1.8x more mass into orbit than aerobraking • 6.2x more mass into orbit than all chemical Aerocapture, a close cousin of aerobraking, is an as-yet-untested technique that would use the friction of a planetary atmosphere to actually capture a spacecraft into orbit. This would eliminate the need for most of the large amount of fuel now needed for delivering a spacecraft into the desired orbit around Mars. 2020-10-27 · That is the goal of the ISAA (Inflatable Systems for Aerobraking and Aerocapture) project, which fits into ESA’s Discovery & Preparation Programme. For this project will be designed inflatable systems that act as drag device during an aerocapture maneuver upon arrival on Mars and Venus respectively.

What is Aerocapture: is first of all a very rapid process, requiring a heavy heat shield resulting in high g-forces, Descent into a relatively dense atmosphere is suffciently rapid that the deceleration causes severe heating requiring What is Aerobraking: is a very gradual process that has the Aerocapture is a subcategory of aerobraking. Atmospheric drag is used to reduce velocity to a point the vehicle can enter a stable orbit with a minimum or no propellant burn. Aerocapture can be the prelude to descent and entry into the atmosphere. Aerobraking is a spaceflight maneuver that reduces the high point of an elliptical orbit by flying the vehicle through the atmosphere at the low point of the orbit.