Assuming you mean a machine for landing on other planets and moons... One of the biggest disadvantages is that landers have to be built to be very tough to survive entering the planet's atmosphere at several kilometres per second speed. There is quite a big chance that the lander won't make it, a big disadvantage when you consider how many millions it costs to build the lander...
Phil Lander's birth name is Phillip Mark Lander.
The address of the Lander Childrens Museum is: 465 Lincoln St, Lander, WY 82520-0533
Pedro Lander's birth name is Pedro Toms Lander Moreno.
Charlotte Lander is 6'.
In katakana, Lander Obra would be spelled: ランダー (Lander) オブラ (Obra).
Harald Lander's birth name is Harald Alfred Bernhardt Stevnsborg Lander.
Gerald Lander was born in 1861.
Gerald Lander died in 1934.
Brian Lander was born in 1942.
Margot Lander was born in 1910.
Bruce Lander was born in 1946.