Aerospike Engine tech

Each level increases Aerospike Units travel Speed by 5%.
LevelCredits
116
224
336
454
581
6122
7183
8274
9411
10616
11923
121,384
132,076
143,114
154,671
167,007
1710,510
1815,765
1923,647
2035,470

Requirements:
Research Labs 5
Orbital Labs 0
Energy level 6