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Viewing 15 posts - 376 through 390 (of 2,657 total)
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  • in reply to: General Discussion #240916
    topspeed
    Participant

    Nuclear power is obsolete in space; https://www.youtube.com/watch?v=wXiitWK_6Qg

    Isaac Arthus tells us that Zubrin mentioned that 1 kg of nuclear power delivers only 10 watts…when solar panels actually do make 1000 watts per kg.

    https://www.youtube.com/watch?v=wXiitWK_6Qg

    in reply to: General Discussion #240931
    topspeed
    Participant

    Calculations for investors to make this more believable.

    in reply to: General Discussion #240960
    topspeed
    Participant

    I ended up on this concept. This gives a change to put 52 people on orbit or ISS. Considering that americans pay 70 mio usd to russian per astronaut to get them to ISS the 115 000 € fuel cost per customer does not sound ja too bad does it ? Fuel cost is estimated to be 3% of the expenses in space travel today.

    in reply to: General Discussion #240974
    topspeed
    Participant

    This is a win win situation…even if the mothership crashes a bit the orbiter can sent the lander to pickem 2 pilots up. Plane could have the stuff to start a colony whole 30 metric ton of it. Also the mothership could be a shelter as it is.

    in reply to: General Discussion #240976
    topspeed
    Participant

    Hello!

    Fanny thing happened on this design today. I counted if it could land on Mars…. The mothership…and it could at 200 km/t speed only. As it has 1/3 wing loading of the space Shuttle….and the Mars gravity is just 38%. How come nobody realized this…on fumes it can land on Mars at 100 mph.

    in reply to: General Discussion #240982
    topspeed
    Participant

    Aeroplane like design for going to space have been studied.

    in reply to: General Discussion #240988
    topspeed
    Participant

    Some tuning to get more Delta-V for the LEO with initial booster/mothership.

    You have to do 25 trips to Mars with T-bird 2 ( on send one every week for 5 months ) to get 100 people on Mars like Elon Musk is doing with one shot.

    in reply to: General Discussion #241013
    topspeed
    Participant

    My claim is here. Based on limited amount of calculations.

    in reply to: General Discussion #241105
    topspeed
    Participant

    ISP figure corrected…it is 14500 s at its best.

    This is bigger now…a bit heavier than shuttle but smaller.

    If you wanna make it profitabale the tickets must be pretty expensive as the fuel alone ís 6-7 million euros.

    in reply to: General Discussion #241147
    topspeed
    Participant
    in reply to: General Discussion #241154
    topspeed
    Participant

    Comparison with Skylon.

    Solid rocket boosters have 11 x more density than the pure LH2/LOX engine. I think that explains the size difference.

    in reply to: General Discussion #241156
    topspeed
    Participant

    Systems explained and 10% increase in size.

    in reply to: General Discussion #241160
    topspeed
    Participant

    This here to display how systems are converted to serve new functions once in space.

    Lander will be removed under the belly ( fuselage has hinges to do this ) serves as extra room and escape pod.

    Solar arrays housing will be the beds for 4 people ( yes this is a 4 astronaut ship ).

    in reply to: Russia moving tac air troops to Syria #2133693
    topspeed
    Participant

    This Middle East conflict is turning into another Vietnam War, with Israel as being South Vietnam.

    Democracy is a bitch ain’t it ?

    in reply to: General Discussion #241172
    topspeed
    Participant

    Let us speculate a bit. If the theory above allows us to travel 37,5 % more efficiently to orbit it actually means that we can get 37,5 % more stuff to orgit than regular rocket. Then I am able to even increase the theorethical delta-v of the 100 000 s ISP of the MPDT engine. At half of that 830 km/s speed I am travelling at 420 km/s ( added orbital speed ) and trip to Xenon rich Jupiter would only take 16 days….and if it was possible to harvest Xenon on a flyby of Jupiter and I pushed the metal to the pedal I would reach Jupiter is just 8 days for “refueling”.

    At any rate I would no reject the MPDT drive at this stage. I still have the planetary acceleration in my sleeve.

Viewing 15 posts - 376 through 390 (of 2,657 total)