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Need to send to a customer in austrailia. anyone got any?

How do you calculate for cluster engines? I want to use 2 or 3 D12-3 engines in a 14oz rocket. 1. What would the maximum weight be? 2. What would the thrust figures be? I assume the burn time will be the same.

Is there any rule of thumb on Parachute sizing? I am trying to size one for my MAXI GROOVE TUBE, It weight 13.5 oz fully loaded with a D12-3. Tubing is BT-80 next to it is a BT-5 version. The XBOX box is there for size comparison.

I am building a Super Baby Bertha in BT-80. I got all the parts ready and I was working on the decals. So I thought I would share it with everyone.

Is their any info on the Vashon Valkyrie as far as dimensions? I had one when I was 10 years old and I would like to build one in the same shape but not freon powered. If someone could post the tube diameter and length of the tube (less nose cone) I can figure out the rest. Thanks in advance!

This year I've had 6 D-Engine CATOs. One was from a new pack from a local hobby store. The rest were old that I got at the flea market. Luckily the rockets that blew up were not my favorites! All are Estes D12-5's. I guess they were improperly stored or something. It even happened at a...

I went to a party the other night. They had a punch bowl full of fake ice cubes with a bright flashing white LED. You can also select whick flash mode to use or always on. I think these will be great for night launches? I have seen these on ebay in different colors, but I am not sure how...

What Nose Cones would everyone like to see vendors selling to fit BT-80 tubing? I like making BT-80 sized upscale rockets but notice the lack of available nose cones in Plastic. Mine wish list would be: PNC-55AC For upscale Cherokee-D or ARCAS PNC-55AO For upscale Goblin & MORE! PNC-60AH...

Where can I get a long plastic Oglive nose cone for 2.60" tubing or BT-80? 5 or 6:1. I looked on the web for the 5:1 and it is either not in stock or sold out.

I wonder if anyone else in the forum is from Hawaii?? Sky Performance Rocket Club meets every 3rd Saturday at Windward Community College 2:30pm to 5:30pm The next launch for May 2006 is moved to the 27th. and a group of us meet every Sunday on the top section of Halawa Park in Aiea at 12...