The Ark/Dropships

Drop ships, also known as Exodus Ships, are ships from The Ark used to launch citizens to the Earth.

The Delinquents' Drop ship
The 100's drop ship was launched with all 100 delinquents and Bellamy Blake. It was intended to land on Mount Weather but landed twenty miles away on the wrong mountain. In the rough landing, it lost communications with The Ark, leaving the Delinquents' wristbands as the only form of monitoring the earth's habitability. The Delinquents then established their Camp around the drop ship and used it as a shelter.

Raven's Pod
"They must have found this thing when they salvaged Mir-3 in 2102. You want me to get a 130-year-old escape pod ready to stand up to the inferno of re-entry in nine days?"

- Raven Reyes to Abby

Raven Reyes rebuilt a 130-year-old escape pod to help her and Abigail Griffin get to earth. Raven was in need of a pressure regulator but was unable to get a working part by the time she needed to launch from The Ark, causing her to have to wear a spacesuit instead. Abby remained behind on the Ark to create a distraction giving Raven time to launch. Once on earth, Raven's pod was then used for spare parts to create flares for the Ark to see the Delinquents were alive.

Suicide by Earth
According to Bellamy Blake, pods similar to Raven's were used in years past by Sky People as a form of suicide. Lincoln encountered one of these people still alive when he was a boy and for three days tried to help him before his father made Lincoln kill the man.

First Exodus Drop ship
The intended first drop ship was initially going to include farmers, doctors, and engineers. After the conflict started with the Grounders, it was then going to contain mostly the Ark Guard. In season one Council member Diana Sydney and her people stage a rebellion and steal the drop ship instead. When the drop ship was launched, it crippled the Ark, leaving it in darkness and without power. As the Exodus ship approached earth, Mount Weather's jamming frequency caused their navigation to malfunction, making it crash into the ground and killing everyone on board.

Project Exodus
Project Exodus was the plan to send the people on the Ark to the ground. After the Delinquents' ship launched, there were 7 remaining Exodus ships, which weren't enough to carry everyone from the Ark safely to the ground. This was a flaw to be fixed in the next 100 years but they ran out of time. After Diana Sydney's mutiny that left The Ark crippled and the remaining drop ships unusable, they ended up using the Ark itself to bring everyone to earth.