Difference between revisions of "Tutorial:Returning From Eve"
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==Method 1 : Rendezvous and Crew Transfer == | ==Method 1 : Rendezvous and Crew Transfer == | ||
===Designing your Landing Rocket=== | ===Designing your Landing Rocket=== | ||
| + | Ascent rocket will use asparagus staging (see [[Tutorials]]) with Upper and Middle Stage in a core and multiple Booster stages grouped in pairs. | ||
==== Upper Stage ==== | ==== Upper Stage ==== | ||
| − | + | This stage has to get above the atmosphere and accelerate itself to orbital velocity. It's important to keep it as lightweight as possible. First choose is a command pod. The best idea is to put single Kerbal in a [[EAS-1 External Command Seat]]. Next (but much worse) would be [[Mk1 Lander Can]]. I recommend first option and a following stage design: | |
| + | *[[EAS-1 External Command Seat]] | ||
| + | *[[Inline Advanced Stabilizer]] // not necessary if you feel confident in piloting | ||
| + | *[[FL-T400 Fuel Tank]] | ||
| + | *[[LV-909 Liquid Fuel Engine]] | ||
==== Middle Stage ==== | ==== Middle Stage ==== | ||
| + | This stage will propel the ship through middle atmosphere (20km-35km). It's engine should be activated with all lower stage boosters and fed from their tanks: | ||
| + | *[[TR-18A Stack Decoupler]] | ||
| + | *[[FL-T800 Fuel Tank]] | ||
| + | *[[LV-T45 Liquid Fuel Engine]] | ||
| + | ==== Booster Stages ==== | ||
| + | There are two possible ways to build them. One is to use 2x[[FL-T800 Fuel Tank]] and [[LV-T30 Liquid Fuel Engine]]. Second is: [[FL-T400 Fuel Tank]], [[FL-T800 Fuel Tank]] and [[Toroidal Aerospike Rocket]]. They have very similar performance but I think aerospikes are better because they lower ship's drag coefficient. | ||
| + | The basic rocket will have 3 pairs of aerospike boosters attached around the core stack. | ||
| + | ==== Additional Equipment ==== | ||
| + | You may also need parachutes and landing gear. | ||
| + | *To save weight you can put [[LT-2 Landing Strut]] on a [[TT-38K Radial Decoupler]]. | ||
| + | *You may need [[Mk25 Parachute]] and it's best to put them on top of the boosters. | ||
| + | *For touchdown I used 24 [[Mk2-R Radial-Mount Parachute]] mounted on 12 [[TT-38K Radial Decoupler]], two on each booster. | ||
| + | * Don't forget the ladder and some electric gear! | ||
| − | + | If you want to send lander alone to Eve, add somewhere a probe. | |
===Designing your Return Rocket=== | ===Designing your Return Rocket=== | ||
Revision as of 16:37, 30 September 2013
Because of the extreme difficulty concerning any return attempt from Eve, I have decided to write a separate tutorial.
Contents
Returning from Eve
Despite being the closest planet relative to Kerbin, it is extremely difficult to get a lander back into orbit around Eve. Additionally, you must overcome Eve's large gravity well in order to successfully return home, requiring even more Delta-V. As a result, many Kerbals have been lost in attempts to investigate their distant neighbor.
Though getting your crew home from the surface of Eve is extremely difficult, it's not impossible.
Specifications
- Length: 1-3 hours
- Difficulty: Very Hard
- For version: 0.20
Additionally, you will need a good understanding of orbital mechanics (see Tutorials section), angles, and a lot of patience. Some knowledge about aerobraking and Advanced Rocket Design might also be useful.
Method 1 : Rendezvous and Crew Transfer
Designing your Landing Rocket
Ascent rocket will use asparagus staging (see Tutorials) with Upper and Middle Stage in a core and multiple Booster stages grouped in pairs.
Upper Stage
This stage has to get above the atmosphere and accelerate itself to orbital velocity. It's important to keep it as lightweight as possible. First choose is a command pod. The best idea is to put single Kerbal in a EAS-1 External Command Seat. Next (but much worse) would be Mk1 Lander Can. I recommend first option and a following stage design:
- EAS-1 External Command Seat
- Inline Advanced Stabilizer // not necessary if you feel confident in piloting
- FL-T400 Fuel Tank
- LV-909 Liquid Fuel Engine
Middle Stage
This stage will propel the ship through middle atmosphere (20km-35km). It's engine should be activated with all lower stage boosters and fed from their tanks:
Booster Stages
There are two possible ways to build them. One is to use 2xFL-T800 Fuel Tank and LV-T30 Liquid Fuel Engine. Second is: FL-T400 Fuel Tank, FL-T800 Fuel Tank and Toroidal Aerospike Rocket. They have very similar performance but I think aerospikes are better because they lower ship's drag coefficient. The basic rocket will have 3 pairs of aerospike boosters attached around the core stack.
Additional Equipment
You may also need parachutes and landing gear.
- To save weight you can put LT-2 Landing Strut on a TT-38K Radial Decoupler.
- You may need Mk25 Parachute and it's best to put them on top of the boosters.
- For touchdown I used 24 Mk2-R Radial-Mount Parachute mounted on 12 TT-38K Radial Decoupler, two on each booster.
- Don't forget the ladder and some electric gear!
If you want to send lander alone to Eve, add somewhere a probe.
Designing your Return Rocket
Landing on Eve
Ascending from Eve
Rendezvous with Recovery Vehicle
Interplanetary Transfer back to Kerbin
Method 2 : Single Rocket Landing and Return
Follow the steps of the two rocket method, ignoring the Rendezvous step.
