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By *ostafun OP Man
over a year ago
near ipswich |
Seems they have flown a test flight with 100% sustainable fuel with their Trent 1000 engine.They want all their Trent family engines to be compatible with 100% blended SAFs by 2023.The green revolution marches on.  |
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By *ercuryMan
over a year ago
Grantham |
They have been ground testing this for six months now but great to see a flight take place. Was only one engine on a four engined 747, but everything went to plan.
Current aviation rules only allow for 50% of a plane's engines to use SAF but progress is being made. |
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By *ostafun OP Man
over a year ago
near ipswich |
"They have been ground testing this for six months now but great to see a flight take place. Was only one engine on a four engined 747, but everything went to plan.
Current aviation rules only allow for 50% of a plane's engines to use SAF but progress is being made. "
The way i read it was that they only used the one engine for the 3 odd hour flight but had to put it on a 4 engine plane as the other 3 were backup for safety reasons. |
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By *ercuryMan
over a year ago
Grantham |
"They have been ground testing this for six months now but great to see a flight take place. Was only one engine on a four engined 747, but everything went to plan.
Current aviation rules only allow for 50% of a plane's engines to use SAF but progress is being made. The way i read it was that they only used the one engine for the 3 odd hour flight but had to put it on a 4 engine plane as the other 3 were backup for safety reasons."
Exactly that. Expect them to move to two engine SAF very soon.
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"They have been ground testing this for six months now but great to see a flight take place. Was only one engine on a four engined 747, but everything went to plan.
Current aviation rules only allow for 50% of a plane's engines to use SAF but progress is being made. "
It is, indeed, good news. However, it's not going to have any major impact for years - for a few reasons.
1. SAF is still a good bit more expensive than kerosene - because it's not as easily available.
2. A new industry supplying SAF in the volume the oil industry supplies kerosene is going to have to be built up.
3. Rolls Royce only manufacture 30% of the jet engines used in wide bodied passenger aircraft.
4. If RR don't share the technology - even via licence deals - with the world's other major jet engine manufacturers; not enough SAF engines will be sold, worldwide, to make them worth the bother.
Thankfully, none of these things is a bar to further progress being made - but they do have to be thought about. |
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