Jet engine/ru
A jet engine is an air-breathing engine which uses onboard liquid fuel and combusts it with the oxygen drawn from the atmosphere. Due to the lower air pressure at higher altitudes its thrust output varies accordingly.
Usage
Unlike rocket engines, a jet draws oxygen from the atmosphere rather than taking it from an on-board tank. This is represented in-game by a much lower rate of fuel consumption. Depending on the aircraft, jet engines can produce thrust at altitudes greater than 20 km. Jet engines do not perform in the same manner as rocket engines. Since Jet engines rely on a turbine to compress fuel and atmosphere together in order to produce thrust, it takes time to change speed. Also if the throttle or air flow are too low the engine will stall. By contrast, rocket engines give instant response to control input.
As of версия 0.18 jet engines require intake air to run, provided by air intakes. Jet engines don't consume oxidizer, so the use of liquid fuel tanks is very wasteful because they come with an full oxidizer tank adding additional mass. When the intake air level isn't checked periodically a jet engine tends to flame out and suddenly doesn't generate any thrust. As this may happen unevenly it can cause severe spinning and potential loss of the craft.
Advantages
- Provides excellent fuel efficiency within an atmosphere
- All current jet engines provide thrust vectoring for greater maneuverability
- Excellent power to weight ratio
Disadvantages
- Cannot be used outside of an atmosphere that contains oxygen. In current version, it means they only function on Kerbin and Laythe.
- Thrust output changes depending on speed
- Engine requires time to spool up to maximum thrust potential
Available jet engines
| Вид | Название | Размер | Цена (  ) |
Масса (т) |
Макс. температура (K) |
Прочность (м/с) |
Прочность (м/с) |
Тяга (кН) |
Тяговооружённость | Расход топлива (  /с)
|
Intake (  /с)
|
Удельный импульс (с) | УВТ (°) |
Реверс |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |
Турбореактивный двигатель J-20 «Юнона» | Крошечный | 450 | 0,25 | 2 000 | 7 | 50 | 20,0 Mach 0 20,6 Mach 1,3 |
8,16 Mach 0 8,40 Mach 1,3 |
0,064 | 1,402 | 6 400 | — | Нет |
 |
Турбовентиляторный двигатель J-33 «Кряхтун» | Маленький | 1 400 | 1,5 | 2 000 | 7 | 50 | 120,0 Mach 0 | 8,16 Mach 0 | 0,233 | 29,601 | 10 500 | — | Да |
 |
Турбовентиляторный двигатель J-404 «Пантера» | Маленький | 2 000 | 1,2 | 2 000 | 7 | 50 | 85,00 Mach 0 107,89 Mach 1,75 / 130,00 Mach 0 219,48 Mach 2,5 |
7,22 Mach 0 9,17 Mach 1,75 / 11,05 Mach 0 18,65 Mach 2,5 |
0,193 / 0,663 |
7,705 / 7,954 |
9 000 / 4 000 |
10,0 | Нет |
 |
Турбореактивный двигатель J-X4 «Бич» | Маленький | 2 250 | 1,8 | 2 000 | 7 | 50 | 130,00 Mach 0 386,66 Mach 3,0 |
7,36 Mach 0 21,90 Mach 3,0 |
0,663 | 5,303 | 4 000 | 1,0 | Нет |
 |
Турбовентиляторный двигатель J-90 «Голиаф» | Установленный радиально | 2 600 | 4,5 | 2 000 | 7 | 50 | 360,0 Mach 0 | 8,16 Mach 0 | 0,583 | 132,273 | 12 600 | — | Да |
 |
Двигатель CR-7 Р.А.П.И.Р.А.[Примечание 1] | Маленький | 6 000 | 2,0 | 2 000 | 20 | 50 | 105,00 Mach 0 465,64 Mach 3,75 |
5,35 Mach 0 23,74 Mach 3,75 |
0,669 | 4,015 | 3 200 | 3,0 | Нет |
- ↑ Двигатель R.A.P.I.E.R. является комбинацией ЖРД и ВРД. Показаны только параметры, относящиеся к ВРД.
See also
- Jet engine on Wikipedia
