Sepratron I

Sepratron I
Solid rocket booster by Periapsis Rocket Supplies Co
Radial size		Radial mounted
Cost	(total)	75.00
	(dry)	70.20
Mass	(total)	0.073 t
	(dry)	0.013 t
Drag		0.2-0.3
Max. Temp.		2000 K
Impact Tolerance		7 m/s
Research		Precision Propulsion
Unlock cost		1 100
Since version		0.17
Part configuration		solidBoosterSep.cfg
Maximum thrust	(1 atm)	13.79 kN
	(vacuum)	18.00 kN
Isp	(1 atm)	118 s
	(vacuum)	154 s
Fuel consumption		1.59 /s
Thrust vectoring		No
Burn time	(1 atm)	3.9 s
	(vacuum)	5 s
Testing Environments
On the surface		No
In the ocean		No
On the launchpad		Yes
In the atmosphere		Yes
Sub-orbital		Yes
In an orbit		Yes
On an escape		No
Docked		No
Test by staging		Yes
Manually testable		Yes
Packed volume		25 l
Stacking capacity		2 units
Solid fuel		8

The Sepratron I is a very tiny solid rocket booster with a very short burn-duration but a great amount of thrust for its mass.

Usage

Capsule with Sepratrons for emergency escape

Unlike traditional SRBs, the Sepratron provides too little thrust to be useful during most takeoffs. Instead it offers two great advantages over other boosters: Its small size allows the Sepratron to be placed on almost any surface, while its low weight generally eliminates the need to detach them after burn-out. Red block letters on its casing read "BIG ROCKET THING. DO NOT DROP".

Possible uses include:

• Rocket-assisted take-off by mounting Sepratrons on the body of a plane;
• Stage detachment: Placed on a spent stage and angled correctly, activating Sepratrons during the detachment of the spent stage can drive the debris away from the rocket and it makes the debris a really fast missile;
• Test launches of lightweight vehicles, e.g. checking whether a rover can survive a landing; note that Sepratrons can quickly overheat adjacent parts
• Emergency escape engines; attached to a capsule or other important part and bound to the "Abort" action group, Sepratrons allow said parts to quickly and easily escape from exploding rockets and other emergencies. Now with the Launch Escape System, larger manned spacecraft (such as those which use the small to large radial sized Mk1-2 Command Pod) no longer need Sepratrons, but Sepratrons are still the solution for smaller manned spacecraft, such as the one shown in the picture.
• Used as a way to substitute for thrust loss. Separating a stage and setting them off when decoupling can be used to maintain constant thrust.
• Used as a way to deorbit small, unused probes on a low orbit.
• Can be for making missiles;

Product description

“

A small canister filled with what appears to be solid rocket fuel. Although not much of a step forward in terms of raw power, Kerbal Scientists have slowly warmed up to the Sepratron I's many uses, such as pushing things away. For best results, angle before use.

”

Changes

0.19

• Mass decreased from 0.2175t Full, 0.15t Empty to 0.0725t Full, 0.0125t Empty. Thrust decreased from 20 kN to 18 kN. Fuel capacity reduced from 9L to 8L. The Sepratron I now has the best TWR of all stock engines.

0.17

• Initial release.