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
Prev Previous Post   Next Post Next
Old 09-05-2010, 10:04 PM
Earl's Avatar
Earl Earl is offline
Apollo Nut
Join Date: Dec 2006
Posts: 1,576

Originally Posted by Bill
And in the rare event the relay contacts have fused closed, the relayer units are designed so that the piezo element sounds whenever the leads are energized. Even so, some have developed the habit of touching the clips together and looking for a sparks before hooking up to the igniter. Probably not a bad idea.

The only Centuri launch equipment I still have is the old wooden box with an asbestos pad.


It's always a good habit to check for juice at the pad BEFORE connecting the leads. I remember one LDRS in particular when I was doing a video interview with a flyer out at the pads while the the entire bank was being loaded with rockets. In the middle of the interview while I had the camera to my eye, I heard the tale-tale sound of 'ignited' thermalite sizzling right beside us. At the same time, the dude at the very adjacent pad 'rolled' out of the way screaming "Lookout!". He had just connected his pad leads to a J800, and about one second later ( before I could even take single step), off it went, about three feet from where I stood. Luckily, the motor did not cato and the launch phase was nominal.

But I can attest that a J800 makes a pretty good whoosh from three feet away (and I've seen a LOT of high power flights over the years).

Earl L. Cagle, Jr.
NAR# 29523
TRA# 962
SAM# 73
Point 39 Productions

Rocket-Brained Since 1970
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 03:10 PM.

Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe © 1998-2019