kurgut

[RSS/RO/RP-1] First crewed lunar landing - Gemini Lander

Recommended Posts

Posted (edited)

Early crewed Moon landing Nasa proposal

LDKmhLj.jpg?1

Gemini Lander

I've just managed to do this early "low-cost" Nasa proposal to a cheap and fast moon landing, since our space program is often running out of money ( big hug to RP-1 team) . Of course, this little thing never flown in reality, was one of the possible applications of the Gemini spacecraft (one design even was planned to a Mars landing!).

First, have to launch the landing module, attached to a Centaur stage (2 RL-10 with restart capacity), in LEO.

Launch vehicle is the great Titan III-E: first stage 2 solid boosters and LR-87 (burning aerozine/NTO in AJ-9 configuration), second stage is LR-91 (same, AJ-9 too), and last stage is hypergolic Centaur stage , just to finish orbit.

pVqwaGs.png

Of course we have to launch in the plane of the moon, so waiting, to have right relative inclination.

Initial ascent

dPz6IiZ.png

Booters separation, aiming orbit at 250 km:

XWalp8H.png

Then LR-91 firing, and finally centaur stage just a bit to finish the work:

78dRKSu.png

The Lander is hidden in the fairings, and on top of that, agena probe core/docking port for gemini spacecraft.

Now let's launch the crew! The gemini spacecraft have been upgrated with a better service module, providing enough deltav to hopefully come back from moon orbit, and enough life support stuff.

Same Launch Vehicle. Crew: Neil Amstrong, Alan Shepard. And launching from Cap Canaveral (same as before)

 

Standing by the launch:

o0keGEi.png

Neil and Alan photographs from the launch tower for their respective wives when they will (we hope) come back:

Spoiler

BwW3qRY.png

3dKHV3q.png

Now get in, and launch! Waiting to have the same inclination as our target and an acceptable phase angle to minimize rendez-vous deltav cost.

Txf0Ijn.png

Hmm, all this thrust, glorious.

After getting rid of boosters and first stage, centaur is as before finshing orbit:

C6shfAW.png

After rendez-vous maneuver, let's dock this!

q522vua.png

Docked! Now go for the moon:

sg87eqT.png

a0xd0MY.png

After about 2 days of travel in this tiny spacecraft, and after circularization burn, Neil Amstrong is getting in the Landing Module, leaving Alan Shepard a few hours alone in moon orbit:

tzMutNr.png

Undocking, and centaur stage firing its last precious amounts of deltav doing the decceleration burn, after that the lander will be released juuuust to the do final descent, at about 2000 m above the terrain, meaning Neil Amstrong will land with a Centaur stage going to crash.. just under him. What a brutal Nasa idea!

wGBtg88.png

Almost, almost, now let's do it smooth (the lander is propelled with 1 or 2 kn engines burning Aerozine/NTO (unthrottable) and have very few life support on it).

I made the lander with descent and ascent stage, but not necessary at all, as you can see.

oZsp4BM.png

And done! Now let's get out quickly of this flying scrap, plant a flag, take one or two pebbles for our scientists, eat a snack on moonar surface, and get back!

dWN0WUY.png

Good bye moon:

oryFjnB.png

4ewYZ3N.png

Rendez-vous with Gemini, and EVA crew transfer:

24AfPpY.png

Now let's go back to our dear old Earth, have to aim the return Pe at 71 km to capture first, and then land, for good ( since the Gemini heatshield will burn up under that, and we don't wan't that).

Itxhl8P.png

Second and final reentry:

lWGYtKn.png

8Dm1L9u.png

Chuutes, chuutes:

495HXzQ.png

And gloriously, marvelously, splashed in the Indian Ocean:

tC1uUFq.png

 

Edited by kurgut
  • Like 3

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now