Windmill Airstart- Block50
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I thought it was possible to windmill the engine in order to restart it ?
I don’t see anything in the new checklists…
I tried it but without success -
I have just succeeded but the speed must over >500kts
Otherwise even if rpm are >50-25% & FTIT <700°C, impossible to windmill airstart the engine …
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@suhkoi69 yeah I think I remember other threads where people say it’s possible, but you’d better start above angels 25
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@airtex2019 yes we can …and I started from FL410
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@suhkoi69 check the Dash-1, pages 3-73 and following.
You should be able to get re-started all the way down to 250 KCAS. Which is about what I recall from my days working on the
F-110 engine. -
@Stevie said in Windmill Airstart- Block50:
You should be able to get re-started all the way down to 250 KCAS. Which is about what I recall from my days working on the
F-110 engine.it would seem that it changes according to the type of engine…if I read the new checklists
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@suhkoi69 - Yes - the 250 KCAS I quoted is for the PW-229, but the air start envelope is pretty much 250 KCAS and above 8K AGL for all engines; and the “above 8K AGL” is to permit dive recovery.
“Having” to be at or above 500 KCAS is ridiculous. You are most likely to snuff an engine at low speed/high altitude.
Check the Dash-1. The GE engine IS better at re-lighting than the P&W, but they are’t really that much different. BMS should be doing better, if it’s not IAW the DASH-1.