Difference between revisions of "LV-909 "Terrier" Liquid Fuel Engine"
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== Usage == | == Usage == | ||
| − | The LV-909 is the second [[Liquid Fuel]] engine with thrust vector control, that allows efficient control of the rocket when it is most needed - during ascent and orbit correction burns. Despite having the same fuel specific impulse as [[LV-T30 Liquid Fuel Engine|LV-T30]] and [[LV-T45 Liquid Fuel Engine|LV T-45 Liquid Fuel Engines]], the much smaller and lighter LV-909 has dramatically less thrust (and longer burn time at the same fuel amount). The low thrust makes the LV-909 unsuitable as a main engine on most lower stages, but the low mass allows for more efficient upper stages. More importantly, the LV-909 is short enough that [[LT-2 Landing | + | The LV-909 is the second [[Liquid Fuel]] engine with thrust vector control, that allows efficient control of the rocket when it is most needed - during ascent and orbit correction burns. Despite having the same fuel specific impulse as [[LV-T30 Liquid Fuel Engine|LV-T30]] and [[LV-T45 Liquid Fuel Engine|LV T-45 Liquid Fuel Engines]], the much smaller and lighter LV-909 has dramatically less thrust (and longer burn time at the same fuel amount). The low thrust makes the LV-909 unsuitable as a main engine on most lower stages, but the low mass allows for more efficient upper stages. More importantly, the LV-909 is short enough that [[LT-2 Landing Struts]] can extend past it. Because of this, the LV-909 is the primary choice for lander engines in 0.14.x. |
Like LV-T30 and -45, the LV-909 are not placeable on [[Radial Decouplers]]. The LV-909 must be directly below a non-empty [[FL-T500 Fuel Tank|FL-T500]] or [[FL-T250 Fuel Tank]], or fed by a [[FTX-2 External Fuel Duct|fuel line]] to produce any thrust. | Like LV-T30 and -45, the LV-909 are not placeable on [[Radial Decouplers]]. The LV-909 must be directly below a non-empty [[FL-T500 Fuel Tank|FL-T500]] or [[FL-T250 Fuel Tank]], or fed by a [[FTX-2 External Fuel Duct|fuel line]] to produce any thrust. | ||
Revision as of 07:40, 11 May 2012
The LV-909 Liquid Fuel Engine is used to provide thrust to a rocket and is fueled by FL-T250 Fuel Tanks.
Usage
The LV-909 is the second Liquid Fuel engine with thrust vector control, that allows efficient control of the rocket when it is most needed - during ascent and orbit correction burns. Despite having the same fuel specific impulse as LV-T30 and LV T-45 Liquid Fuel Engines, the much smaller and lighter LV-909 has dramatically less thrust (and longer burn time at the same fuel amount). The low thrust makes the LV-909 unsuitable as a main engine on most lower stages, but the low mass allows for more efficient upper stages. More importantly, the LV-909 is short enough that LT-2 Landing Struts can extend past it. Because of this, the LV-909 is the primary choice for lander engines in 0.14.x.
Like LV-T30 and -45, the LV-909 are not placeable on Radial Decouplers. The LV-909 must be directly below a non-empty FL-T500 or FL-T250 Fuel Tank, or fed by a fuel line to produce any thrust.
The thrust vectoring on this engine tends to be less useful than on the LV-T45, due to both the reduced gimbal range, and use on lighter rockets.
Description
| “ | The 909 model was initially received with some skepticism by spacecraft engineers, as it defied the long-standing convention that "More Power!" is always better. Despite this, the 909 series has found its place in the spacecraft construction world, being particularly useful as a final stage and landing engine. — Jebediah Kerman's Junkyard and Spaceship Parts Co. |
” |
Changes
see also: Version History
- v0.14
- Part introduced
