Quote:
Originally Posted by Startrek
Thanks Glen
Well detailed as usual
Just on the lift thrust , if the Super Heavy lifters power plant is 27 raptors each with a 250 tonne lift rating then total lift capacity would be around 6,700 tonnes
Is that correct ??
The Apollo Saturn 5 fully fuelled weighed 2,800 tonnes or around 6 million pounds and the 5 x F1 engines had a combined lift thrust of 7.5 million pounds
That means the Super Heavy Lifter will be 2.5 times the weight of a Saturn 5 !!
I don’t know if I’ve got the maths right but this Super Heavy Lifter will be a launch vehicle of astonishing magnitude !!!
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Honestly, the figures on the Super Heavy are pretty vague still, the only sure thing is the 27 Raptors that Elon has talked about. Data from the link below indicate:
Super Heavy now would stand about 68 meters tall. The 118 meter tall two-stage vehicle could ultimately weigh about 5,000 tonnes at liftoff and rise on about 7,500 tonnes of thrust, growing heavier from 2017 plans.* It would be able to boost 100 tonnes to LEO initially, with 150 tonnes as a future goal.*
Here is an old document provided by SpaceX on the details:
http://spacelaunchreport.com/bfr.html
Here is the SpaceX video of the test:
https://youtu.be/s1HA9LlFNM0