Falcon Heavy has flown , It has the heaviest lift of any operational vehicle (26,700 kg to GTO). It put the Tesla Roadster into solar orbit. It has two flights scheduled for this year.
The Falcon 9 Block 5 is scheduled for manned flight this June. It will carry the Dragon 2.
Thank you for the update.
With Boeing, Aerojet/Rocketdyne and NASA behind the SLS, it will fly. And soon.
And unlike Falcon Heavy, it will be certified for manned flight.
It will carry fully TWICE the load of Falcon Heavy.
Nearly 300,000lbs into LEO. That’s a monster that dwarfs Saturn V.