News Changes to the SpaceX BFR rocket.

[Urwumpe]

I found this one after lots of search phrase optimization and browsing:

https://www.bulletpicker.com/pdf/TM-43-0001-30.pdf#page=144

And yes, I estimated a maximum acceleration of a bit more than 2G with this one:

(89 kg US meat, 11 kg structure, 40 kg rocket motor dry mass = 140 kg, 3.24 g peak acceleration possible)

Lower than I expected, a lighter (especially female) human could easily exceed 4 g. But the rocket motor is pretty safe for a solid, thanks to a overpressure valve. As long as it is properly mounted, a human could launch safely. Maybe not near vertical, a ramp launch could maybe be safer. Would feel much better about it if I could find a thrust curve for it.

 

[Thunder Chicken]

Maybe not near vertical, a ramp launch could maybe be safer.

Well, the user will likely be wearing roller skates, so a ramp would be fine.

 

[Urwumpe]

Well, the user will likely be wearing roller skates, so a ramp would be fine.

Just to be sure: We want at least one surviving participant, right?

 

[Thunder Chicken]

Just to be sure: We want at least one surviving participant, right?

Surviving participants should increase the scores awarded by the judges.

 

[Urwumpe]

Surviving participants should increase the scores awarded by the judges.

Ah ok! Then, its roller skates. Bonus points if they still stand on the wheels before leaving the ramp.

Maybe we should also have some Group B feeling by launching over a canal and placing the spectators right next to it.

 

[Thunder Chicken]

So a JATO Junior, strapped to a 150 lb person and launched vertically, should accelerate them to ~ 270 mph at burnout at an altitude of 1800 ft and an apogee of a bit over 3000 ft.

If horizontal on roller skates, they would achieve about 470 mph in a distance of about 4000 ft.

 

[Thunder Chicken]

Ah ok! Then, its roller skates. Bonus points if they still stand on the wheels before leaving the ramp.

Maybe we should also have some Group B feeling by launching over a canal and placing the spectators right next to it.

This is starting to sound familiar:

 

[kuddel]

...that went slightly off-topic very soon - and well

 

[Thunder Chicken]

...that went slightly off-topic very soon - and well

Well, the last Starship failed to explode, so some light entertainment was needed to fill the void.

 

[Buck Rogers]

Everything did explode, just at very low altitude (boring), and there was no Chopstick Thing!

 

[Thunder Chicken]

Everything did explode, just at very low altitude (boring), and there was no Chopstick Thing!

Well, they failed to explode unexpectedly. Disassembly was scheduled, not unscheduled.

 

[Buck Rogers]

Yes, zuchini effect is important! But I would argue that currently unscheduled disassembly is actually expected and it not exploding unexpectedly is the unexpected!

 

[Thunder Chicken]

Yes, zuchini effect is important! But I would argue that currently unscheduled disassembly is actually expected and it not exploding unexpectedly is the unexpected!

Humor Post in thread 'Random Comments Thread'

Nov 4, 2015

• Frilock

 

[Buck Rogers]

Adding approximately 16 cats with the appropriate number of well placed zuchini might improve booster performance? I guess they'd need little parachutes on jettison... or they become the CREW! Here's to Cats on Mars! Hi to RocketCat!

Nearly 10 years, the days of gifs and no AI.

 

[jedidia]

But I would argue that currently unscheduled disassembly is actually expected and it not exploding unexpectedly is the unexpected!

Now you're giving me a headache...

 

[Thunder Chicken]

Adding approximately 16 cats with the appropriate number of well placed zuchini might improve booster performance? I guess they'd need little parachutes on jettison... or they become the CREW! Here's to Cats on Mars! Hi to RocketCat!

Nearly 10 years, the days of gifs and no AI.

Maybe just quietly put a pile of zucchini under the launch mount, and then tap Superheavy on the shoulder and point down to it? Also would need to sneak a couple into the hot staging ring for extra performance from Starship.

Of course, this would only work once.

 

[Urwumpe]

How about changing the propellant combination to Coca Cola and butane? In that case, they just need to install the rocket upside down and turn it quickly pointy-end up for launch.

 

[Frilock]

Now you're giving me a headache...

 

[Buck Rogers]

Of course, this would only work once.

Hmmm, that might be a fatal flaw in my concept? Would make testing/training difficult. I was interested in the possible effect of multiple zuchini, although I think this might cap at about 4 (for cats)?

How about changing the propellant combination to Coca Cola and butane? In that case, they just need to install the rocket upside down and turn it quickly pointy-end up for launch.

Chopsticks can do that!

Whens the next launch scheduled? Enough silly humour to last till then?
(Yay, gifs are back!)

 

[Urwumpe]

Whens the next launch scheduled? Enough silly humour to last till then?

Planned is at the end of October, the last V2 launch. Of course, plans change....