AT L-1000 DMS – flying case with a nose cone and 4 fins

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firemanup

Well-Known Member
Impressive work man!! May make a trip to Argonia to watch

rfjustin

Well-Known Member
G10 plates from McMaster Carr arrived as well as the 8020 rails...

watheyak

Barnstormer
TRF Supporter
Excited to see how you do the tower. I need a 4-fin tower, may copy...

rfjustin

Well-Known Member
First we mock-up, then we drill and cut some plates.

grouch

Well-Known Member
Towers interest me greatly!

CPUTommy

Thrust cures All
As is everything you've done...its super clean and way way off the cool factor charts. I cant wait to see the whole thing..wow just wow !!!

Nytrunner

Pop lugs, not drugs
TRF Supporter
Is that the base, or are you REally counting on your fins flying through those slits on launch?

rfjustin

Well-Known Member
Is that the base, or are you REally counting on your fins flying through those slits on launch?
Negative.... the small base (fin guide) is being used for mock-up only.

mo2872

Well-Known Member
Is that the base, or are you REally counting on your fins flying through those slits on launch?
Thank you for asking that question.......I was curious, also....... I should clarify, I have ZERO tower experience, and if they were supposed to fly through those slits, I was gonna be AMAZED.

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Dipstick

Well-Known Member
TRF Supporter
Negative.... the small base (fin guide) is being used for mock-up only.
That and he doesn't want to scratch the nice finish on that motor case

Rocketjunkie

This is the tower I built for a 4-1/2" minimum diameter rocket in 1990 and 1992. Base was 4' x 4' piece of 3/4 plywood with a piece of 1/32 steel blast deflector. Rails were 2" conduit (cheap at Lowe's). I machined plugs to fit tubes and they were bolted to the base and top piece. Motor was an O3000-40 (yes, motor ejection ) . We didn't know about the issues with BP ejection charges at the time. We also didn't know delay grains burned even slower at altitude. (Delay was more like -55.)

Tim51

Well-Known Member
This is the tower I built for a 4-1/2" minimum diameter rocket in 1990 and 1992. Base was 4' x 4' piece of 3/4 plywood with a piece of 1/32 steel blast deflector. Rails were 2" conduit (cheap at Lowe's). I machined plugs to fit tubes and they were bolted to the base and top piece. Motor was an O3000-40 (yes, motor ejection ) . We didn't know about the issues with BP ejection charges at the time. We also didn't know delay grains burned even slower at altitude. (Delay was more like -55.)
View attachment 446307 View attachment 446308
Is that the 'Cloudbuster' rocket referred to in Canepa's 'Large and Dangerous Rocket Ships' ?

rfjustin

Well-Known Member
Th
This is the tower I built for a 4-1/2" minimum diameter rocket in 1990 and 1992. Base was 4' x 4' piece of 3/4 plywood with a piece of 1/32 steel blast deflector. Rails were 2" conduit (cheap at Lowe's). I machined plugs to fit tubes and they were bolted to the base and top piece. Motor was an O3000-40 (yes, motor ejection ) . We didn't know about the issues with BP ejection charges at the time. We also didn't know delay grains burned even slower at altitude. (Delay was more like -55.)
View attachment 446307 View attachment 446308
Thanks Tom, we covered it already. Hard to believe that was months ago when it feels like days!

dnp

Member
Really been enjoying this thread! I designed and built this tower a few years back, and I've flown many 38/1200 motors out of it with great success. The rails are 1010 extrusion, and the end plates are 1/2" waterjet cut Aluminum, secured by 1/4-20 countersunk bolts. It is fully adjustable from 38-75mm.
.

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grouch

Well-Known Member
So much awesomeness.

dnp

dnp

dnp

dnp

Member
Thank you all for the kind feedback! Here's a PDF with a drawing of the plate if anyone is interested in making some for themselves.

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Rocketjunkie

Is that the 'Cloudbuster' rocket referred to in Canepa's 'Large and Dangerous Rocket Ships' ?
Yes. This was the one I flew in 1992. The 1990 flights used the same tower and were powered by Vulcan O1550's.

Tim51

Well-Known Member
Yes. This was the one I flew in 1992. The 1990 flights used the same tower and were powered by Vulcan O1550's.
Thanks for being a pioneer!

rfjustin

Well-Known Member
Real deal plates get cut this weekend....

rfjustin

Well-Known Member
Tower is elegant in its simplicity IMHO, and not bad for DIY at home...