Only 6,600 satellites have flown since Sputnik. Now companies are racing to launch more than 30,000 new satellites in the next 5 years. Everyone wants to be first to market.

Mass and volume are the enemy.

Traditional propulsion systems are heavy and occupy up to 30% of the satellite's volume which could be available for revenue-generating payload. When you accelerate to orbit, every kilogram saved is worth thousands of dollars.

Meet ACE, the Apollo Constellation Engine.

ACE is an electric propulsion system with revolutionary performance. Including PPU, propellant, feed system and Hall thruster, the system delivers 16 mN of thrust and 200,000 N-s of impulse in a toaster-sized package.

Impulse per system volume, N-s/L

200kg sat, 1000m/s delta-V, 2 thrusters, with propellant

ACE is very small.

When you measure impulse per system volume, ACE is 3 to 5 times better than any competing alternative. This means better performance at a fraction of the size. ACE can be as small as 2U for cubesats.

Impulse per system mass, N-s/kg

200kg sat, 1000m/s delta-V, 2 thrusters, with propellant

ACE is very light.

ACE's performance offers impulse per mass far better than any competing alternative. Compared to other similar sized systems, ACE is between 15 to 30 kilograms lighter. Each kilogram is up to $15,000 saved in launch costs.

ACE is a strategic investment.

We're confident ACE will enable you to achieve new mission goals which weren't possible before. What can ACE do for your constellation? Reach out to us at and let's talk.