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Old 05-08-2020, 11:12 PM
glend (Glen)
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Join Date: Jun 2013
Location: Lake Macquarie
Posts: 7,033
Quote:
Originally Posted by Startrek View Post
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 !!!
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

Last edited by glend; 05-08-2020 at 11:23 PM.
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