|T O P I C R E V I E W|
|SpaceAholic||Updated family snapshot:|
|ilbasso||What an outstanding collection!|
|Hart Sastrowardoyo||You're missing a SSME. |
|SpaceAholic||There is an SSME injector plate in the collection (just missing the other 99% of the engine).|
|Tim Collins||A great resource Scott. Thanks.|
|dfox||Which one is your favorite?|
|freshspot||Amazing, Scott. Thank you for all that you do for fellow artifact collectors. |
|Rick Mulheirn||Awesome stuff Scott. I showed my wife the photo of you collection. Her answer was an emphatic... NO! |
Originally posted by dfox:
Which one is your favorite?
All the "children" are favorites... however if forced to choose, hard to ignore the significant role played by the R-4D (which continues to be so even today). Look to the left of the version flown on Apollo and you will see two of its direct derivatives used on more recent programs. In fact the R-4D basic design with only minor mods remains under production by Aerojet and is being considered for future application (until recently that included the MPCV service module).
|space1||A nice Christmas season rocket family portrait with colorful red decorations!|
|garymilgrom||Beautiful Scott. Thanks.|
|David Carey||You need to get crackin' on that expansion wing for the museum. Incredible assembly of rocket engines and well done...|
|mikepf||Great collection. You'd make one heck of a birthday cake lighting those candles! |
|dfox||Yeah. The R-4D is quite a beauty. The nozzle is "scalloped" which is rather different and makes for a remarkable aesthetic appearance. |
What is the purpose of the "scalloping." Is this for heat radiation?
Here is an interesting link.
|SpaceAholic||By "scalloped" assume your referring to the nozzle ribbing - its primarily there to reenforce the thin walled alloy and enhance structural performance while keeping weight low; an added benefit was additional surface area for cooling. |