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> It’s generally recommended that aircraft engine oil should be replaced every 50 hours, otherwise the oil would turn to sludge and get contaminated, which woul
by mulmen 3y ago
> It’s generally recommended that aircraft engine oil should be replaced every 50 hours, otherwise the oil would turn to sludge and get contaminated, which would damage the engine.
This sounds like piston engine advice. I’d be surprised if jet airliners are going in for oil changes twice a week.
- civilitty 3y agoJet engines constantly pump oil under pressure between the stator and rotors to provide lubricant for the radial bearings while sealing and cleaning them. It’s a completely different kind of oil to the kind you’d find in a piston engine and operates at a much higher temperature.
- mulmen 3y agoAgreed but what’s the service interval on that oil? Does it get changed regularly or just topped off? It’s a piston plane but my understanding of the DC-3 is that it runs out of fuel around the same time it runs out of oil.
- miovoid 3y agoHybrid-electric propulsion systems can enhance flight endurance by separating propulsion and power generation tasks, individually optimizing each for specific stress levels aligned with mission requirements.
- mulmen 3y agoDoes the marginal efficiency make up for the added weight? Aircraft engines already operate in a very narrow envelope so they can be optimized for cruise.
- miovoid 3y agoHyllion Karno is a good example for power generation unit required ultra-low maintenance.