| [Not displaying correctly? View web version.] | Peak-of-Flight Newsletter #543: | | 
A common question we get here at Apogee Components is: ‘how big of a vent hole do you need in the tube of your rocket for the altimeter to correctly sample the air?” Why do you even need a hole? Because the altimeter needs to measure the atmospheric pressure to determine how high the rocket has flown. But how large or small does that hole need to be? The answer is that modern altimeters are really sensitive, and the old requirements are just overkill. In this article, Bernard Cawley does the flight experiments by launching mulitple altimeters onboard the same rocket, to find out the truth once and for all just how big of a vent hole your altimeter needs in order to take an accurate altitude reading. | | Read the rest of this week's article, either on a downloadable PDF for printing out, or on our website (great for viewing on your phone)! Previous issues of our newsletter are found at our archive page. |
| Check out the latest products to hit Apogee's shelves! | RockSim v10.1 Update | | 
RockSim has a new update! We've revised the software and have gone up to version 10.1 from 10.0. The big change was that we upgraded the software that controls the user interface so that it is more compatible with newer computers. This is a no-cost update for all version 10 and version 9 paid users of RockSim. Get the update here.
To see the other features added to the program, plese see our YouTube video Episode 6 here. |
| Estes Der Big Red Max | | 
The Der Big Red Max uses 29mm motors insidde a 3" diameter airframe, making this the highest flying Der Red Max in the family. This kit contains all laser-cut balsa fins and cardstock centering rings, a (very unique) heavy-duty plastic parachute, thick-wall tube and an unrivaled sticker-type decal sheet and artistic scheme. If you are looking for a visually unique flyer, or a fan of the lore and legend around the Red Baron from WW1, then this rocket is an easy choice. It's a big der. |
| Aleda-R Boost/Glider | |  The Aleda-R is a popular and well-performing boost-glider from J&H Aerospace. The pop-pod is designed for 13mm rocket motors, and boosts this lightweight glider to incredible heights. This rocket can launch on 1/4A up to an A10-3 motor, and features a beautiful glide back to the ground.
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"I'm buying rockets for my grandson. What do I know about it? So. I went on Amazon and was totally overwhelmed by the types and sizes and didn't know what I actually needed. Do I need lifters, pads, wadding, engine? I called Apogee because their rockets looked like the most likely thing he would want. I am so glad I did - I talked to a wonderful person who guided me through the process, what I should get for an initial rocket, what would be the next step as a gift if he likes that one...she even told me that anyone who works at the company must first assemble a rocket before being hired! Loved that - it put a human face on science. And whoever works there has an actual interest in the product line. They are going to promote something they have fun with. My minutes with this person gave me faith that the company is not going to leave me floundering around for information, that my purchase is important to them, that they want to promote education in rocketry. I will always buy from Apogee!" -- Kathleen Bakerââââââ | |
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We're looking for someone to write a definitive guide to selecting igniters, controllers and batteries for rockets. We'd love to have a newsletter article on that topic, because we get lots of inquiries about it. Is that you? Do you know how many e-matches can be set off in a cluster by a 3.7v 400 mAh battery? See our Newsletter Guidelines on how to submit an article on this topic and get paid up to $350 for your time. | |
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 I need help with generating the bi-weekly newsletter articles since it takes a lot of effort to put them together. And I'm willing to pay big bucks for your help. So ask yourself, are you looking to earn some extra money? I'm now actively seeking writers for articles to appear in this newsletter. And I want unique and cutting-edge articles because that is what you want to read, right? I realize this, so to get articles from outside writers that have the same level of quality, I'm going to have to pay a lot of cash to make it worth it for them. So I've come up with a compensation package where I'll pay up to $350 for good how-to articles. Are you a writer, and does that interest you? That is a lot of cash! Far more than you'll get by writing for other magazines. And with over 23,000 worldwide subscribers, if you write for the Peak-of-Flight Newsletter, you'll gain a lot of notoriety. Writing for the Peak-of-Flight Newsletter is a great way to show off your rocketry projects and your technical expertise, at the same time as helping out other rocketeers. Imagine how great you'll feel knowing that you made a difference to the hobby. If you're interested in writing, see the guidelines on our site. | |
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