Saturn 1B tube sizes

[gpoehlein]

Now that I finally got a 1/100 Saturn V, I'd really love to build a 1B in the same scale. Unfortunately, the 1B from Semroc is larger. (My eventual plan is to kit bash the Saturn V into a Skylab I, so I'd love to have a 1B in the same scale for a Skylab II.) Both Estes and Centuri made a 1B in this scale, but I can't really find the tube sizes to use. John Brohm's excellent tube guide does tell the lengths of the tubes from the Estes kit, but these are SBT body tubes which are not available nor really well documented as to diameter and wall thickness. The plans for the Centuri version is up on Jimz, but does not include the parts list (typical Centuri instructions which only show the pictures of the parts but gives no parts list). I know the S4B is use on each, so it is the same as in the Saturn V. But what tubes were used for the central tube and fuel tanks on the first stage?

Greg

[sandman]

The Saturn 1B used the Redstone booster bodies for the tank tube.

The Redstone was 70" in diameter. At 1/100th scale that's 0.70"

Totally Tubular has that tube listed as a T-.70

NOTE!!!

I just checked SEMROC and they have that tube listed as a BT-19!

[Carl@Semroc]

The ST-27014 is the tail ring for the 1/100 Saturn 1B.

[Ltvscout]

The ST-27014 is the tail ring for the 1/100 Saturn 1B.
Do you have the scallops laser-cut into it? ;)

[sandman]

Do you have the scallops laser-cut into it? ;)

I have a 1/100th resin scallop that JimZ made for me years ago.

Maybe I'll make a mold and...

Or better yet...easier. I could make a hardwood master and vacuform it.

I'll think some more about it.

[rocketguy101]

Check out my build thread here (http://www.oldrocketforum.com/showthread.php?t=5065)

[jharding58]

Give me a couple more weeks and there should be a PE tower set in 1/100 to match the Sirius CM.

[MarkB.]

Awesome!

Your photo-etch + Carl's BNC-2ET and a piece of BT-2 and my Centuri Saturn 1b is back in business.

You have your first customer or Beta Tester, just let me know!

[luke strawwalker]

Now that I finally got a 1/100 Saturn V, I'd really love to build a 1B in the same scale. Unfortunately, the 1B from Semroc is larger. (My eventual plan is to kit bash the Saturn V into a Skylab I, so I'd love to have a 1B in the same scale for a Skylab II.) Both Estes and Centuri made a 1B in this scale, but I can't really find the tube sizes to use. John Brohm's excellent tube guide does tell the lengths of the tubes from the Estes kit, but these are SBT body tubes which are not available nor really well documented as to diameter and wall thickness. The plans for the Centuri version is up on Jimz, but does not include the parts list (typical Centuri instructions which only show the pictures of the parts but gives no parts list). I know the S4B is use on each, so it is the same as in the Saturn V. But what tubes were used for the central tube and fuel tanks on the first stage?

Greg

I agree... I like stuff in the same scale! The Saturn V and IB go hand in hand, and having them in different scales is just kinda silly IMHO. I LOVE the Apogee offerings, but there's three things holding me back-- 1)price, 2)not HPR and don't care to be, and 3) storage space. I'd love to see Estes or Semroc bring back the 1/100 Saturn Saturn IB.

I've even brought the subject up to Wes over at Dr. Zooch rockets-- since his Saturn I/IB kits are using BT-60's for the S-IVB, he should make a BT-80 based Saturn V model-- the S-IC and S-II stages would be BT-80, with a 1.5 inch long stage adapter (IIRC) to a BT-60 based S-IVB, using the same Apollo SLA/CSM/LES from the Saturn IB kit... This would be an awesome 18mm cluster model or single 24 mm motor model, and there's nothing else like it on the market. I like the 18 mm Zooch Saturn V, but since the lower stages are based on the BT-60, it's not in scale with the other Saturn offerings from Dr. Zooch... heck even the Zooch Soyuz is in scale with his Saturn I/IB's, but the Saturn V is the lonely nonconformist... The roughly 1/150 scale is a nice size too-- not too big, not too small... nice enough to 'superdetail' if you want, but not so big as to require it, and one you wouldn't have to hold you breath and cramp your sphincter every time you launched it like the bigger ones you'd have to put SO much time and effort into to make look really good...

Only new part it'd really require is the S-II/S-IVB conical stage adapter-- the parts could be upscaled from the existing Zooch Saturn V wraps and fairings...

Guess nobody's listening though... LOL:)

Later! OL JR :)

[jharding58]

But could you still use the non-patented trash bag material chutes?

[JumpJet]

The Estes 100th Scale Saturn 1B Kit #2048 contained the following tube sizes.



# 30436 Second stage body tube BT-82A 2.618” OD x 7.635” long

#30397 LEM/SM body tube BT-58CE 1.540” OD x 6.4” long

#30379 Core tube BT-54A 1.150” OD x 11.0” long

#30438 Aft body tube BT-83B 2.698” OD x 1.39” long

#30279 Tube Coupler JT-82A 2.585” OD x 1.312” long

#30421 Nozzle Spacer BT-671B 2.042” OD x 1.05” long

#30329 Fuel Tubes BT-18A .708” OD x 7.88” long



John Boren