RogerPink
Aerospace
- Sep 29, 2014
- 2
I recently did a lot of research on the SpaceX Falcon 9 for an article I wrote:
SpaceX Article
It is pretty amazing how far SpaceX has come in such a short time.
When Elon Musk founded SpaceX, he envisioned a tenfold reduction in launch vehicle payload costs. One way to achieve this goal was to develop reusable launch vehicles, particularly the first stage, which represents 70% of the vehicle’s cost.
SpaceX has implemented its reusable launch system development program over the past several years. This program has included development of the Grasshopper and the F9R Dev classes of test vehicles. The Grasshopper was a 106-foot-tall, single-engine (Merlin 1D) vertical takeoff and vertical landing (VTVL) vehicle that made eight successful test flights in 2012 and 2013. On its final launch, the Grasshopper reached an altitude of 2,441 feet before it descended under a controlled thrust to the launch pad with the accuracy of a helicopter.
The larger and more powerful F9R Dev test vehicle began VTVL flights in 2013. It consisted of a Falcon 9 v1.1 first stage with three engines (Merlin 1D). It made a successful VTVL test flight to an altitude of 3,281 feet. The F9R Dev was destroyed on August 20 when a blocked sensor caused the flight computer to initiate an auto-terminate procedure. Construction of a F9R Dev 2 is underway for VTVL testing.
SpaceX Article
It is pretty amazing how far SpaceX has come in such a short time.
When Elon Musk founded SpaceX, he envisioned a tenfold reduction in launch vehicle payload costs. One way to achieve this goal was to develop reusable launch vehicles, particularly the first stage, which represents 70% of the vehicle’s cost.
SpaceX has implemented its reusable launch system development program over the past several years. This program has included development of the Grasshopper and the F9R Dev classes of test vehicles. The Grasshopper was a 106-foot-tall, single-engine (Merlin 1D) vertical takeoff and vertical landing (VTVL) vehicle that made eight successful test flights in 2012 and 2013. On its final launch, the Grasshopper reached an altitude of 2,441 feet before it descended under a controlled thrust to the launch pad with the accuracy of a helicopter.
The larger and more powerful F9R Dev test vehicle began VTVL flights in 2013. It consisted of a Falcon 9 v1.1 first stage with three engines (Merlin 1D). It made a successful VTVL test flight to an altitude of 3,281 feet. The F9R Dev was destroyed on August 20 when a blocked sensor caused the flight computer to initiate an auto-terminate procedure. Construction of a F9R Dev 2 is underway for VTVL testing.