Aircraft engine noise plagues communities near airports. Acoustic liners to reduce aircraft engine fan noise have been placed upstream and downstream of the rotor fan but not in the area immediately over the fan. This new metallic foam innovation behaves like a bulk acoustic liner, serves as a tip rub strip, and can be integrated with a rotor containment system to increase the noise-suppression treatment area.

Innovators at NASA Glenn Research Center (GRC) have patented a reduced toxicity satellite fuel propulsion system that enables use of cost-effective, reduced toxicity fuels for both maneuvering and station-keeping satellite propulsion systems. Current propellants, such as nitrogen tetroxide and hydrazine, require costly handling, transportation, and storage mechanisms due to their toxic nature. Some previously considered reduced-toxicity fuels have not been utilized because they are not hypergolic—they will not spontaneously react with an oxidizer to begin the combustion process. GRC’s innovation overcomes this limitation with a satellite thruster that offers the ability to catalytically decompose a reduced-toxicity propellant into hot gases, spontaneously reacting with an oxidizer to begin the combustion process. GRC’s system can be used for both bipropellant and monopropellant satellite propulsion, helping to significantly reduce the cost and complexity of satellite missions.

Innovators at NASA Glenn Research Center (GRC) have patented a reduced toxicity satellite fuel propulsion system that enables use of cost-effective, reduced toxicity fuels for both maneuvering and station-keeping satellite propulsion systems. Current propellants, such as nitrogen tetroxide and hydrazine, require costly handling, transportation, and storage mechanisms due to their toxic nature. Some previously considered reduced-toxicity fuels have not been utilized because they are not hypergolic—they will not spontaneously react with an oxidizer to begin the combustion process. GRC’s innovation overcomes this limitation with a satellite thruster that offers the ability to catalytically decompose a reduced-toxicity propellant into hot gases, spontaneously reacting with an oxidizer to begin the combustion process. GRC’s system can be used for both bipropellant and monopropellant satellite propulsion, helping to significantly reduce the cost and complexity of satellite missions.

Innovators at NASA Glenn Research Center (GRC) have patented a reduced toxicity satellite fuel propulsion system that enables use of cost-effective, reduced toxicity fuels for both maneuvering and station-keeping satellite propulsion systems. Current propellants, such as nitrogen tetroxide and hydrazine, require costly handling, transportation, and storage mechanisms due to their toxic nature. Some previously considered reduced-toxicity fuels have not been utilized because they are not hypergolic—they will not spontaneously react with an oxidizer to begin the combustion process. GRC’s innovation overcomes this limitation with a satellite thruster that offers the ability to catalytically decompose a reduced-toxicity propellant into hot gases, spontaneously reacting with an oxidizer to begin the combustion process. GRC’s system can be used for both bipropellant and monopropellant satellite propulsion, helping to significantly reduce the cost and complexity of satellite missions.

Innovators at NASA Glenn Research Center (GRC) have patented a reduced toxicity satellite fuel propulsion system that enables use of cost-effective, reduced toxicity fuels for both maneuvering and station-keeping satellite propulsion systems. Current propellants, such as nitrogen tetroxide and hydrazine, require costly handling, transportation, and storage mechanisms due to their toxic nature. Some previously considered reduced-toxicity fuels have not been utilized because they are not hypergolic—they will not spontaneously react with an oxidizer to begin the combustion process. GRC’s innovation overcomes this limitation with a satellite thruster that offers the ability to catalytically decompose a reduced-toxicity propellant into hot gases, spontaneously reacting with an oxidizer to begin the combustion process. GRC’s system can be used for both bipropellant and monopropellant satellite propulsion, helping to significantly reduce the cost and complexity of satellite missions.

Innovators at NASA Glenn Research Center (GRC) have patented a reduced toxicity satellite fuel propulsion system that enables use of cost-effective, reduced toxicity fuels for both maneuvering and station-keeping satellite propulsion systems. Current propellants, such as nitrogen tetroxide and hydrazine, require costly handling, transportation, and storage mechanisms due to their toxic nature. Some previously considered reduced-toxicity fuels have not been utilized because they are not hypergolic—they will not spontaneously react with an oxidizer to begin the combustion process. GRC’s innovation overcomes this limitation with a satellite thruster that offers the ability to catalytically decompose a reduced-toxicity propellant into hot gases, spontaneously reacting with an oxidizer to begin the combustion process. GRC’s system can be used for both bipropellant and monopropellant satellite propulsion, helping to significantly reduce the cost and complexity of satellite missions.