Jump to content

How do I spaceplane


Recommended Posts

Myself, I've got an ILS set up - that does take time to do but it pays off in the long run, especially if you intend to spaceplane a lot. Here's what you do: you want to set out a series of ground beacons, one at the ocean end of the runway, one at the other end (the starting end), then further west from that one you put beacons at 1 km, then 5 km from that one, then moar beacons at 5 km intervals to as far out as you're comfortable doing. My own ILS goes out to 30 kilometers. The beacons don't have to be much; a powered probe core will suffice, and rover delivery works well.

Then when you want to land, you can use the beacons as a guide. First of all, if you set them up with little variation in north/south, you can use them to help guide your runway alignment. Second, the beacons act as a slope indicator - your distance to the beacon plus its distance to the end of the runway will give you the altitude you want to be at - one hundred times that sum. For example, if you're 20.2 kilometers to the ten kilometer beacon, you want your altimeter to read somewhere around 3,020 meters. (20.2 + 20 = 30.2, 30.2*100 = 3,020). That doesn't work all the way to the ground since the elevation of the runway is at about seventy meters, but it should give you a good feel for whether you're high or low at least, and should get close to a reasonable glideslope.

As for getting to the runway itself, from Kerbin orbit you want to set a maneuver node that will put your periapsis onto the ground over on the next continent (not the dinky little peninsula on the same continent, but on the other continent), roughly seventy degrees downrange of KSC. Eyeball it; you'll be okay as long as you've still got gas in the tank. If you find yourself short, you can still fly to KSC if you've got a little gas in the tank (5-10k's when the jets have that 2000+ Isp). If you overshoot, you can double back; your ILS will still be able to help you set up your alignment at least, though you'll just have the ocean beacon to help you with glide slope.

Link to comment
Share on other sites

As for getting to the runway itself, from Kerbin orbit you want to set a maneuver node that will put your periapsis onto the ground over on the next continent (not the dinky little peninsula on the same continent, but on the other continent), roughly seventy degrees downrange of KSC. Eyeball it; you'll be okay as long as you've still got gas in the tank. If you find yourself short, you can still fly to KSC if you've got a little gas in the tank (5-10k's when the jets have that 2000+ Isp). If you overshoot, you can double back; your ILS will still be able to help you set up your alignment at least, though you'll just have the ocean beacon to help you with glide slope.

Of course this is dependent on how steeply you are going to reenter. If you have lots of gas, you can wait until you are over the desert and aim for just below the large island north-east of KSC. Takes ~200 m/s of dV for such a steep reentry, but it's easier to hit.

Link to comment
Share on other sites

BTW what is Jool "lower atmosphere" border? Is it possible to make a spaceplane for mining science from there with returning back? Without efficient jet engines and with thick dense atmosphere it's nearly impossible :rolleyes:

Jet engines will not work on Jool, no air to breath for them to operate. But yes it is possible to make a spaceplane that works with rockets and dip down into the atmosphere and fly back out of Jool for science.

Link to comment
Share on other sites

This thread is quite old. Please consider starting a new thread rather than reviving this one.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...