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Apogee Rocketry Workshop #281:

Using the Aerotech Universal Delay Drilling Tool

Advanced Construction VideoSo I noticed a problem this past weekend with the Aerotech Universal Delay Drilling Tool that a customer showed to me at a rocket launch. The one he had wasn't cutting into the delay grain of his rocket motor. What happened was that the drill was set at the wrong depth.

Fortunately, this is a very easy fix, and it doesn't require returning the item back to the manufacturer. There is just one little screw holding it in, and in just a few seconds, it will be adjusted and cutting the delay times you need for your flight. And after you make the adjustment, it will be much more accurate in setting the delay time of the motor.

You'll also see how it works too, just in case you've never used a delay cutting too before.

View this week's Rocketry Workshop Video (Duration: 5:19)

Previous videos are found on our archive page.

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Newest Products From Apogee Components

Check out the latest products to hit Apogee's shelves!

36" Helicopter Parachute

Procast Castable Igniter DipThis is totally new and so unique, we guarantee you've never seen it before. Based on the Apogee Peak-of-Flight Newsletter article by Dave Flanagan, this parachute is designed to spin as it comes down. It is twice as efficient as a normal parachute with the same surface area, and it also doesn't sway as it descends. It's made from nylon cloth, and is perfect for mid-power rocket. Plus there are so many other advantages, that you definately have to check it out. You absolutely must be the first to own one and show it off at your next launch.

ProCast Castable Pyrogen Mix

Procast Castable Igniter DipProCast is a special pyrogen mix that allows you to make igniters for those special situations where the motor is difficult to ignite. It burns far hotter and a little bit slower so that the heat and the pressure inside the casing are maintained to ensure that the motor ignites the first time. It is so powerful, that we have to warn you ahead of time to be careful when using it. If you use too much of this mix on your igniter (you make the pyrogen-head too big), it could provide too much pressure and blow your casing open. We are not responsible for your casing and what happens at launch, so use this stuff sparingly until you are familiar with its energetic nature. 

Loadstar II Bulk Pack (12/pk)

Loadstar IIThe Loadstar II bulk pack is a great two stage easy-to-build rocket for classrooms. The kit has large fins, creating excellent stability in flight; you won't have to worry about the rocket's trajectory. This rocket can reach heights of 1,000 feet and can be tracked by an altimeter placed into the clear payload section. 

Quick-Disconnect Connector

JST quick disconnectThese JST quick-disconnect connectors are perfect little connectors for DIY electronic projects like dual deployment set ups. They allow you to quickly remove bulkheads to get at your electronics. Wires are pre-stripped to fit into the terminal blocks of your altimeter. 

 

Customer Comments

“I just want to say thank you to everyone at Apogee rockets for the great service and their selection of quality products that helps this hobby of model rocketry to be what it is today. Without a doubt, you are number 1 in my book. So once again thank you to everyone who makes rocketry possible.”

— Charlie Morykin

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