Estes Pro Series 2 tube sizes?

JPVegh · Oct 20, 2012

Hi folks, I was hoping that some of you with PS2 kits on hand could take some measurements of the tubes. There seems to be a lack of data available for these tubes. So if you wouldn't mind getting out your calipers and measuring OD, ID and wall thickness I sure would appreciate it.

While your at it some measurements of the nose cones might come in handy as well. Things like shoulder length and exposed length might be helpful to some of us in the future.

Thanks

BEC · Oct 20, 2012

Jeff,

Based on the four kits I have (two built, two in the bag):

2.00 inch OD tubing, 0.040 wall thickness (lower Ventris, upper Argent)
2.50 inch OD tubing, 0.040 wall thickness (upper Ventris, lower Argent)
3.00 inch OD tubing, 0.040 wall thickness (Leviathan)
4.00 inch OD tubing, 0.050 wall thickness (Mega Red Max)

Nose cones:

2 inch (Argent) 2 inch shoulder, 9 3/4 inches exposed length
2.5 inch (Ventris) about 2 1/2 inch shoulder, 9 3/4 inches exposed length
3 inch (Leviathan) about 3 inch shoulder, 9 inch exposed length
4 inch (Mega Red Max) 4 inch shoulder, 16 1/2 inch exposed length

2 to 2.5 inch transition (Ventris, Argent) 2 inch shoulder: 2 inches, exposed transition: 2 1/4 inches, 2.5 inch shoulder: 2 1/2 inches

I've had baffle plates custom made to the IDs for the 2, 2.5 and 3 inch tubes by BMS and they fit well. The Leviathan is flying with that baffle. I'll have to order some for the Mega Red Max now that I have the numbers (kit just came from AC Supply yesterday).

Howzat?

JPVegh · Oct 21, 2012

BEC said:
Jeff,

Based on the four kits I have (two built, two in the bag):

2.00 inch OD tubing, 0.040 wall thickness (lower Ventris, upper Argent)
2.50 inch OD tubing, 0.040 wall thickness (upper Ventris, lower Argent)
3.00 inch OD tubing, 0.040 wall thickness (Leviathan)
4.00 inch OD tubing, 0.050 wall thickness (Mega Red Max)

Nose cones:

2 inch (Argent) 2 inch shoulder, 9 3/4 inches exposed length
2.5 inch (Ventris) about 2 1/2 inch shoulder, 9 3/4 inches exposed length
3 inch (Leviathan) about 3 inch shoulder, 9 inch exposed length
4 inch (Mega Red Max) 4 inch shoulder, 16 1/2 inch exposed length

2 to 2.5 inch transition (Ventris, Argent) 2 inch shoulder: 2 inches, exposed transition: 2 1/4 inches, 2.5 inch shoulder: 2 1/2 inches

I've had baffle plates custom made to the IDs for the 2, 2.5 and 3 inch tubes by BMS and they fit well. The Leviathan is flying with that baffle. I'll have to order some for the Mega Red Max now that I have the numbers (kit just came from AC Supply yesterday).

Howzat?

Nice.

Thanks Man.

Derek · Oct 25, 2012

Ok, so where can we actually buy tubes these sizes? I didn't see anything on balsa machining's site that looked like a match. Some of the couplers looked close, but they are only 6" long.

mwtoelle · Oct 25, 2012

The 4" tubing will interchange with LOC or Aerotech tubing. As for Pro Series/NCR by Estes/Pro Series II series tubes, the 2", 2.5", or 3" tubes are not available commercially at this time.

Zhaddock · Oct 25, 2012

I extended one of my leviathans with 3" BT and a coupler that I ordered from Mercury Engineering's website. It all fit like it was suposed to.

Derek · Oct 25, 2012

Zhaddock said:
I extended one of my leviathans with 3" BT and a coupler that I ordered from Mercury Engineering's website. It all fit like it was suposed to.

it doesn't look like they have the 2 and 2.5" tubes, though.

smiler82 · Oct 25, 2012

Anyone know if the BHC300-W bulkhead at BMS fits the Leviathan coupler?

BEC · Oct 25, 2012

smiler82 said:
Anyone know if the BHC300-W bulkhead at BMS fits the Leviathan coupler?

Yes, it is pretty close. I used a couple of them along with the kit coupler to make the upper few inches of mine a payload section. I bought a C300-6 from BMS and used half of that for the "production break" in the build (joint above the fins), but it was pretty snug - so be careful about glue grabbing as you assemble.

JRThro · Jan 16, 2014

Derek said:
Ok, so where can we actually buy tubes these sizes? I didn't see anything on balsa machining's site that looked like a match. Some of the couplers looked close, but they are only 6" long.

Estes has the body tubes, couplers, and plastic nose cones for sale here:
https://www.estesrockets.com/rockets/pro-series/parts

I bought 2 each of the 2" body tube, slotted body tube, coupler, and nose cone back in December.
Now I just need to decide what to do with them.

K'Tesh · Mar 1, 2014

BEC said:
Nose cones:

2 inch (Argent) 2 inch shoulder, 9 3/4 inches exposed length

This doesn't match my measurements, I've got the exposed length at 9 5/8".

K'Tesh · Apr 3, 2014

Time to drag this thread up again...

Anybody got a thickness on the Estes 29mm Motor Mount Tube (031360)?

Fishhead · Apr 3, 2014

JRThro said:
Estes has the body tubes, couplers, and plastic nose cones for sale here:
https://www.estesrockets.com/rockets/pro-series/parts

I bought 2 each of the 2" body tube, slotted body tube, coupler, and nose cone back in December.
Now I just need to decide what to do with them.

:eyepop: John?! Holy carp! I thought we lost you!

Rex R · Apr 3, 2014

I've got it at 0.039" for a motor tube. I presume that you're going for how much it weighs?
Rex

K'Tesh · Apr 3, 2014

Rex R said:
I've got it at 0.039" for a motor tube. I presume that you're going for how much it weighs?
Rex

No, but it wouldn't be bad to know.

I'm looking to get some Centering rings for it to use with the 2.5" and 2" PSII tubes I'm using for my Cherokee D, Yellowjacket, and Jayhawk builds.

Rex R · Apr 3, 2014

1.219" diameter is what I have listed...no idea if that is right. I've been using an adjustable hole bit for my brace and used trial and error until I had the right size

. hint cut the inner hole last. one could, if one had an Estes 29mm retainer handy measure the bit that slides over the tube and subtract a wee smidge

.
Rex

Kruegon · Jul 1, 2015

BEC said:
Jeff,

Based on the four kits I have (two built, two in the bag):

2.00 inch OD tubing, 0.040 wall thickness (lower Ventris, upper Argent)
2.50 inch OD tubing, 0.040 wall thickness (upper Ventris, lower Argent)
3.00 inch OD tubing, 0.040 wall thickness (Leviathan)
4.00 inch OD tubing, 0.050 wall thickness (Mega Red Max)

Nose cones:

2 inch (Argent) 2 inch shoulder, 9 3/4 inches exposed length
2.5 inch (Ventris) about 2 1/2 inch shoulder, 9 3/4 inches exposed length
3 inch (Leviathan) about 3 inch shoulder, 9 inch exposed length
4 inch (Mega Red Max) 4 inch shoulder, 16 1/2 inch exposed length

2 to 2.5 inch transition (Ventris, Argent) 2 inch shoulder: 2 inches, exposed transition: 2 1/4 inches, 2.5 inch shoulder: 2 1/2 inches

I've had baffle plates custom made to the IDs for the 2, 2.5 and 3 inch tubes by BMS and they fit well. The Leviathan is flying with that baffle. I'll have to order some for the Mega Red Max now that I have the numbers (kit just came from AC Supply yesterday).

Howzat?

This has been a huge help. Any chance that anyone has accurate sizes for the tube couplers? Specifically the ID of them.

This is one time I really wish Estes had used the industry standard sizes for their rockets.

rharshberger · Jul 1, 2015

Kruegon said:
This has been a huge help. Any chance that anyone has accurate sizes for the tube couplers? Specifically the ID of them.

This is one time I really wish Estes had used the industry standard sizes for their rockets.

Problem is, is that for the lightweight airframes Estes is the standard....Quest is their only real competitor and uses their own sizes.

EXPjawa · Jul 1, 2015

Kruegon said:
This has been a huge help. Any chance that anyone has accurate sizes for the tube couplers? Specifically the ID of them.

This is one time I really wish Estes had used the industry standard sizes for their rockets.

I'm getting 2.410" & a wall thickness of .032" for the coupler for the 2.5" tube. Math says the ID is 2.346" if the numbers are good, measured with old Mitutoyo digital calipers on an Argent kit I just happened to be building now. The tube coupler is already glued into one segment of tubing, so measuring the OD is pretty easy - no real deflection right near the glue joint. The ID is trickier, though, since its easy to flex the end of it open with the calipers. Thus the inferred dimension given.

Estes Pro Series 2 tube sizes?

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