The spacecraft of the day at 1/220!

[Jan Kytop]

Here is now the Delta IV +5M/4 (5 meter diameter fairing and 4 boosters).
Thrust of 556 tons at takeoff for a weight of 331 tons. It can place 10 tons in low orbit.
The model represents the July 24, 2015 launch of a new generation military telecommunications satellite WGS-7.
https://www.youtube.com/watch?time_c...ature=emb_logo
The last Delta IV M was fired was in 2019. The heavy version, programmed until 2023 will be the last of this prodigious lineage!
AXM model:
Delta IV

[Jan Kytop]

By attaching two first stages to a Delta IV M, you get the Delta IV H (heavy).
It is one of the most powerful rockets today (955 tons of take-off thrust in its latest version).
It can put into geostationary orbit a load 300 times heavier than the first Delta.
The launch of a Delta is extremely spectacular because huge flames seem to set the rocket on fire:
https://www.youtube.com/watch?v=9d8raqfq6oQ
The model represents the launch of August 13, 2018 ( Parker Solar Probe).
An AXM model:
Delta IV – AXM Paper Space Scale Models.com

[Jan Kytop]

Following an exchange with a member of the french Space Conquest Forum, I thought it would be interesting to talk about the Lunar Prospector probe during this "Sunday Special".
This American NASA probe was launched on January 7, 1998 to carry out a detailed cartography of the Moon and in particular of the distribution of chemical elements on its surface, the variations of its magnetic and gravitational fields, etc...
It will confirm the presence of water at the bottom of certain craters in the shadow of the poles.
The mission will last 22 months.
Model of Erik te Groen (there is everything: the rocket, the probe, even the Moon that decorates the base).





The Athena II rocket is a 3-stage variant of the Athena I, consisting of a first stage recovered from a Peacekeeper missile and two identical superimposed solid propellant stages. It will be little used.






Comparée au Minotaur IV, vu précédemment, plus petit mais utilisant le même premier étage:

[Jan Kytop]

Want to see what's under the rocket skirts?
Here is the model of the second and third stages as well as the payload (the Parker Probe solar probe) of the Delta IV Heavy rocket that I presented to you earlier.
Model AXM:
Delta IV – AXM Paper Space Scale Models.com





This ensemble alone is as imposing as the original Thor missile:


You can see the oxygen and liquid hydrogen tanks of the second stage, protected from overheating by shiny coatings:




The probe, on the third stage:

[Butelczynski]

That's incredibly impressive modeling.very,very nice detail and assembly there.

Do all current rockets use Hydrogen/Oxygen engines or some other mix?

Are corrosive propellants like those used by Germans still in use somewhere?

Just curious,there is a new video by The History Guy on YT about Bomarc rocket explosion.That one used corrosive propellants.

[Algebraist]

For me this thread just keeps getting better and better Jan Kytop. Particularly liking the "up close" pictures and explanations. Please do keep them coming.

Regards and take care

Kevin

[Jan Kytop]

Originally Posted by Butelczynski

That's incredibly impressive modeling.very,very nice detail and assembly there.

Do all current rockets use Hydrogen/Oxygen engines or some other mix?

Are corrosive propellants like those used by Germans still in use somewhere?

Just curious,there is a new video by The History Guy on YT about Bomarc rocket explosion.That one used corrosive propellants.

Here an interesting presentation of rockets'propellants:
Basics of Space Flight: Rocket Propellants

[Jan Kytop]

Originally Posted by Algebraist

For me this thread just keeps getting better and better Jan Kytop. Particularly liking the "up close" pictures and explanations. Please do keep them coming.

Regards and take care

Kevin

Thank you very much Kevin.
More to follow.

[Butelczynski]

Excellent reading-thank you for link.

Short answer to my question is yes,hypergolic propellants are still used and so are many others depending on purpose,size etc of the rocket.

Yet we still can't make use of all that hot air coming from TVs and some very important buildings

[Jan Kytop]

A great fireworks display to end this evocation of the Thor and Delta launchers.

Seen from Honolulu 1,445 kilometers from the explosion:



On July 9, 1962, the Thor missile represented by my model exploded an atomic bomb in space, 400 kilometers above the Pacific, as part of Operation Fishbowl.
The electromagnetic flash caused by the explosion will hit Hawaii 1445 kilometers away and cause a lot of damage (300 burnt-out street lamps, telephone out of order, destruction of many electrical devices).
What a great time when people still knew how to have a good time!

The missile is equipped with 3 pods that will be dropped at different altitudes during the climb and will fall back under parachute while taking samples and measuring radiation. In this configuration, the missile is called Thor DSV-2E.
Scissorsandplanes model with personal modification.





Final presentation:







The Kytop family's next destination will be: