#j-2

[lonestarflight]

Size comparison between the Apollo Program F-1 and J-2 engines and an early version of the Space Shuttle Maine Engine.

SDASM Archives: 08_01232

[commodorez]

Saturn V - Third stage of the S-IVB-211 featuring the J-2 engine

US Space & Rocket Center- Huntsville, AL

[nelc]

J-2 rocket engine production at Rocketdyne, for the Apollo programme

[confinesparis2020]

[asouekids]

ASOUE S03, two days to go

When people ask you what your plans are for New Year’s Eve:

When someone asks you about Season 3:

When you start crying because you remember what Lemony once said:

[ohmuuuu]

J-2 

// oh mu

[why-animals-do-the-thing]

Do Killer Whales Really Live to be 100+?

For a long time, researchers did agree that Granny (J-2) was probably around 100 years old. They estimated her birth year as being 1911, and that’s still the commonly accepted date that’s listed on most online field ID’s. With the way ages for adult whales were calculated for the southern resident whales at the beginning of the longitudinal study, it made sense. It’s only the most recent research that points towards J-2 being 80-90 years old at best. Here’s how it breaks down.

As we mourn Tilikum today, we cannot help but think of the recently assumed death of wild southern resident J-2 (Granny), who is famous in her own right for being the oldest known orca. 

Many people use a common estimate of J-2′s age as a means of inflating the expected lifespan of orcas in captivity, so here’s an article I wrote last year that goes into a little more depth on those estimations and why research points to the commonly assumed ‘102′ being likely at least two decades off. Extreme age for any animal makes them an outlier, not the norm, and Granny was impressively long-lived. 

[lonestarflight]

"This drawing clearly shows the comparative sizes of the rocket engines used to launch the Saturn vehicles. The RL-10 and the H-1 engines were used to launch the Saturn I rockets. The J-2 engine was used on the second stage of Saturn IB and the second and third stages of Saturn V. The F-1 engine was used on the first stage of the Saturn V."

Date: January 30, 1963

NASA ID: 9903406