Oxygen not included rocket calculator full#

Generally if your ship already weighs 7000kg wet (including fuel) adding a solid booster begins to reduce the net achievable distance. The solid booster is not always a good choice, you can see its effects with the calculator. It weighs 200kg and requires another 800kg in wet mass (400kg fuel, 400kg oxydizer) to be powered. The solid fuel thruster is an interesting item, whilst it add 12,000 base distance. All the other rocket components are relatively heavy and will balloon your weight penalty rapidly:Р”Р‡or example, even adding on just one of these cargo bays to the petroleum rocket above drives the weight penalty up to -39,575km (23k more) and a second takes it to -79,567km (40k more), so it will barely get off the ground.

Whilst all the base rocket parts like fuel storage, engines and command capsule are all relatively light. So despite having the same base achievable distance, the net distance after weight penalty is 10,000km more for the hydrogen example.

Hydrogen rocket: 4600kg (fuel 1800kg, oxidizer 1800kg, engine 500kg, capsule 200kg, fuel/oxy storage 300kg) Weight pentalty: -6,200km(ish).

Petroleum rocket: 6200kg (fuel 2700kg, oxidizer 2700, engine 200kg, capsule 200kg, fuel/oxy storage 400kg) Weight pentalty: -16,177km.

This is significant since the mass of these two rockets would be totally different: This distance would be boosted to 143,640 km if you use liquid oxygen instead of oxylite as the oxydizer.

Oxygen not included rocket calculator full#

This is the same distance provided by only 2 full tanks of hydrogen (60km/kg * 1800kg). Seeing the difference between petroleum and liquid hydrogen we can see that 3 tanks of petroleum will provide a base distance (before weight penalty) of 108,000km. So either you build a ship with 3 fuel tanks per oxidizer tank, or measure/limit the amount of oxidizer you pump in on smaller ships. Interestingly, the oxidizer storage carriers exactly enough to burn 3 full fuel storage containers of fuel.

Solid oxydizer tank, weight 100kg, can carry 2700kg of oxydizer.

Liquid oxydizer tank, weight 100kg, can carry 2700kg of oxydizer.

Liquid fuel storage, weight 100kg, can carry 900kg of fuel.

Oxylite has a burn efficiency of 100%, Liquid oxygen has an efficiency of 133%, this would give for example Petroleum the power of 40km/kg and 53.2km/kg respectively. Importantly, engines (except steam) require an oxidizer now in a 1-to-1 ratio with the fuel in order to burn. This is a nice mechanic that prevent mega rockets ever making sense as the additional weight costs too much distance. The key take away is that every kg you add to your ship costs more than the last in terms of achievable distance. The efficiency of a fuel is important since its a linear relationship between kg of fuel used and distance traveled, however the weight penalty is non-linear (credit to neoazureus): Pentality = Max There are three fuels for each of the three base engines, each has its own 'efficiency' in terms of km achieved per kg used:

Please post issues or suggestions below in the discussion.

You can only have one type of main engine oxidizer (you can not be half LOX and half oxylite for example)Р”Р„ll suggestions are welcome.

You put in the exact same amount of oxidizer as fuel for your main engine.

Select your desired distance and see how much fuel you require.

Pick your extra components (all cargo bay types are the same).