I've done a search here and come up with a couple of threads on this but how do you others approach planetary bases?.. I have landed on several hundred planets, moons etc while on a 4 month long exploration jaunt both high and low G without hardly a problem which is really easy when you yourself are choosing the landing spot. However I am having problems at planetary bases while doing missions as I keep over/under reaching the designated target and end up boosting to my destination the last 75-120km. Also does anyone have a link to how to create a 3D planetary map or some other tool which makes it easier to plan a multi delivery mission assignation?.
There are some great YouTube videos but I can give a short primer:
There are 4 phases to a planetary landing: Planetary Approach, Orbital Cruise Mode, Glide Mode, then Landing.
Approach the planet just as you would a star-port and when the timer drops to 7 Light Seconds (7 LS) set throttle to 75%. Spot your target/destination and circle the planet if necessary. When the planet starts getting big in the window reduce throttle to 50%. I like to approach a planet "hull-down" with the settlement I am planning to land at coming at me over the horizon, with the nose of my ship pointed just above the horizon (your altitude still drops because, geometry) watching to make sure my speed eventually drops into the "blue zone" in the mini-panel to the left of the HUD. I want the settlement to be at a point about half-way between an imaginary drawn line under my ship and the horizon before I drop-in, this gives me an approach angle of approximately 35-45 degrees downward towards my destination. I push forward and point my nose at my destination and when Orbital Cruise (OC) kicks in the AoA ladder appears on the HUD. Aiming high (above the target) will increase my Glide angle, aiming lower will shallow it. I personally aim high because I like to be right up against or near the "red-zone", very steep at 50 degrees angle when Glide Mode kicks in, shortens the Glide time and leaves my ship right over the target at about 5-6 Km altitude. So:
Approach the planet, drop throttle to 75% at 7 LS out.
Spot your destination, circle planet if necessary.
Reduce throttle to 50%.
Point your ship's nose just above the horizon and maneuver to place your destination about half-way between the imaginary line under your ship and the horizon.
As your altitude drops watch to make sure your speed (eventually) drops into the "blue-zone" (left mini-panel).
When Orbital Cruise (OC) begins watch the AoA indicator on the HUD and when the settlement is at about 45 degrees in front and below you, push into a shallow dive toward the settlement.
Aim slightly high so your angle does not shallow (geometry) but watch the HUD to make sure your angle does not become too steep and make sure you are pointed directly at your target when Glide Mode begins. Optimum angle (for me) is about 50 degrees.
Once Glide Mode starts, just hang on, do not make huge control inputs and get ready to ask for landing clearance. Aim at the settlement.
When Glide Mode ends, if you did everything correctly you should find yourself about 5 Km above the settlement with Air Traffic Control warning you to ask for clearance.
This advice applies to low-G worlds, high-G worlds require a slightly different technique.
Don't worry, it takes much longer to read it than it does to do it. o7