Ye Olde Rocket Forum

Go Back   Ye Olde Rocket Forum > The Golden Age of Model Rocketry > Model Rocket History
User Name
Auctions Register FAQ Members List Calendar Today's Posts Search Mark Forums Read

Thread Tools Search this Thread Display Modes
Old 07-21-2019, 09:14 AM
5x7's Avatar
5x7 5x7 is offline
Sometimes collector
Join Date: May 2008
Posts: 656
Default Old Aerotech 24mm Reloads

I got a bunch of Aerotech 24 mm E18 reloads from a hobby shop closing down. I believe they are from the mid-1990s. They are packaged one per pack although Aerotech now sells them in three packs. There are no date codes and I think per NFPA at some point motors were required to have a code in the package. If you look at the price I think they were priced at the three pack price back then. In order to narrow down a date, does anyone know:

1) When the Aerotech E18 was first released?
2) When the 3 packs were released?

Attached Thumbnails
Click image for larger version

Name:  E4E03FDA-CCE1-4FC0-83C4-18884EAD3B9D.jpeg
Views: 37
Size:  1.32 MB  Click image for larger version

Name:  1A9EDF66-66A1-4991-87AC-0B4DAE957AD7.jpeg
Views: 32
Size:  1.32 MB  
Reply With Quote
Old 07-21-2019, 09:29 AM
ghrocketman's Avatar
ghrocketman ghrocketman is offline
Join Date: Jul 2005
Location: Michigan
Posts: 9,561

Those are really old.
I don't recall them ever being sold in single packs, and that price most certainly is for a 3-pak.
I have paks from the late 90's and they are 3-paks.
When in doubt, WHACK the GAS and DITCH the brake !!!
No DIRECT and MEASURABLE Harm=NO Foul advocate

If you are NOT FLYING LOW in the left lane, you need to GET THE #$&@ OUT of it !

Yes, there is such a thing as NORMAL
, if you have to ask, you probably aren't
Reply With Quote
Old 07-21-2019, 10:10 AM
5x7's Avatar
5x7 5x7 is offline
Sometimes collector
Join Date: May 2008
Posts: 656

The reload in post 1 is not the oldest, they originally came with instructions to put the grain at the fwd end of the motor. This made it nearly impossible to insert an igniter if there was a misfire and required disassembling the motor to place a new igniter. So if anyone knows when the change in instructions happened it could further narrow down the date.
Attached Thumbnails
Click image for larger version

Name:  3327477C-CF30-479D-91F8-3DC9B6BE5335.jpeg
Views: 24
Size:  251.3 KB  
Reply With Quote
Old 07-21-2019, 12:00 PM
LeeR's Avatar
LeeR LeeR is offline
Retired with Way Too Many Kits
Join Date: Jun 2007
Location: Colorado
Posts: 2,245

I bought my first 24mm reloads in the early 90s. They were single packaged, and went to 3-packs around 1994, as I recall. I bought a bunch of them cheap on a great sale by a vendor from Utah that came to Colorado launches. But I didnít use them up, and a few years ago I tossed what I had remaining . Some swelled, bulging at ends, or narrowing, or closing off, of the slot. Even the normal looking ones became almost impossible to light. Or if they lit, they might sputter until they really got going. Just not worth trying to use up. I have made my own igniters that burn very hot with tons of sparks, and still found older reloads just would not light. The other issue is delay elements. They can be unreliable with age. You can buy new delay kits, but Iíve found itís just not worth the hassle.

I only buy reloads now in quantities that I think Iíll use in a couple years.
Lee Reep
NAR 55948, L2

Projects: Super Sky Hook, Super X-Ray, Semroc Spaceman, Estes Phoenix
Awaiting Paint: Estes Saturn 1B
Last Completed: SuperNova
Reply With Quote
Old 07-21-2019, 03:14 PM
5x7's Avatar
5x7 5x7 is offline
Sometimes collector
Join Date: May 2008
Posts: 656

The E18s I have are nearly completely swelled so you can just tell where the slot was and that's it. I was going to put them in a burn pile but have found I can remove the grain from the liner with a 3/4 inch dowel, and then open the slot with a saw just enough to get the igniter in. With some Magnelite on the grain, I have been able to get all of them to light but only have put them in saucers and lately an Applewhite monocopter. They light after a few to many chuffs (see video) and were well worth saving for me, but I can clearly see most folks would not go through that.

Last edited by 5x7 : 07-31-2019 at 02:07 PM.
Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -5. The time now is 07:03 AM.

Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe © 1998-2020