All 4 Engines Down | Ultimate 747 Flight Simulator Test!

Does a 747 just turn into a very heavy glider when all 4 engines quit?
Can it even be controlled? (the 747-200 has no RAT)
Testimony from pilots (source included below) indicate in real life, the engines windmilling would create enough hydraulic power to supply the required flight controls with the energy needed. In his book, he states the windmilling engines creates 3000psi in the engines down to 160kts, after which HYD pressure begins to dwindle. Unfortunately it is not clear if he has normal electrical power at this point (I am assuming so) because this obviously factors in.
After some research online, and spending half an hour doing various tests, manually cutting fuel levers and relighting mid-flight (I decided to edit this out, as it made the video almost 45 minutes long) it seemed that the APU was needed to keep the 747 responding to my control inputs - which otherwise completely failed after about 2 minutes (current Felis 747-200 version as of Jan 2024).
These "semi official online sources" are quoted from a book - Handling the Big Jet - by D Davies (talking about the 747 Classic. )
Navigraph Charts are intended for flight simulation only - not for real world navigational use. For more information see: Navigraph.com
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Contents:
0:00 Jumbo Jet Loses All 4 Engines
2:01 Losing Ability to Control the Aircraft
4:07 Green Dot speed for a 747!
6:15 Little Voice Says "DON'T DO IT!"
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Internet Flight Rules!

[@SounderAU]

Nicely done, mate!

[@kiwinesss]

Good to see you back!

[@ayubomar9153]

looks clean

[@CAL1MBO]

That landing was haaawwt. Take me to the danger zone and lose me forever!

[@kiwinesss]

That was a hairy landing there.

[@ayubomar9153]

whats your settings bro

[@badAim2]

Mate, what the hell is the text on the thumbnail supposed to mean? "The queen is going down"??! Wtf, seriously. She'd dead, can't go anyway lower.

[@KasaiHasuki]

The 747 is colloquially referred to as the “Queen of the Sky”… but go off I guess

[@RoamingAdhocrat]

the queen is not dead, she is the Queen Eternal. down with charles the pretender

[@InternetFlightRules]

I like your sense of humour!