#31
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Be a little more specific - what part of R&D do you feel takes so long? |
#32
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Yes, I put in an awful lot of time into a really nice Ariane 4 only to be side-swiped by their corporate suits who demanded we pay a 10% royalty. Estes by principle, doesn't pay royalties on either rockets or planes funded by taxpayers. We have always considered scale kits as free advertising and promotion for those affiliations wherever they may be. We still can't legally produce the Ariane without paying a royalty. |
#33
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This is a great question. This sould make for interesting excahnges with the engine guys here. Many of you may not realize that there has never been two like batches of black powder ever made. That includes the one that may have been made yesterday, and the batch made today on the same equipment, and from materials from the same bags or sacks. Terry - feel welcome to jump in on this if you think I miss something---- While potassium nitrate stays relatively constant, both the sulfer and charcoal change ever so slightly from lot to lot. The charcoal is the ingredient that has the greatest overall control over the burn rate of a particular batch. Hickory has historically been the preferred source of charcoal, but woods such as pine can in a pinch be uased as well. Trees as a species morph over time, which side of the hill they were grown on and where they were harvested changes, the ingrediants in the soil changes, and so does the temperature while they were growing. The variables are staggering that affect the tree before the wood is harvested. And do you use the branches or the truck, or both? Then there is the process of heating the wood to produce the charcoal. Getting to repeatable charcoal for black powder is a serious issue. To get to your essential question - yes, black powder made today is 'slower' than it was ten years ago, and it's getting slower. That changes the burn rate of our motors just as it does everyone else's motors. We do burn rate tests on every single lot of powder we buy to characterize it. We press and burn a lot of motors in this process. We have to know how many clicks to adjust engine manufacturing equipment in order to maintain the NAR impulse standards we have always adhered to. Does this help? |
#34
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Mike,
Thanks for joining the forum and sharing your life with us! That was a great story about Wayne Kellner. Monty Python was/is still fun to watch. 1. How did you and Wayne come up with the Goonybirds? 2. What inspired you to design the Blue Bird Zero? PS: the BBZ is one of my favorites! . |
#35
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Roy - there wer a number of issues that all came about in a short amount of time that helped put the Cineroc down. Yes, there was the motor issue. The manufacturer got up and evaporated. Our search for a replacement did not go well. I designed the film advance around a certain motor that ran at 'X' rpm at at 'Y' current. Then the case had a specific mounting method and the plastic of the camera were designed to match. If a suitable motor was found with different mounting, then we woul have to go back and spend the money to correct the molds. Secondly, the original lens mold was one of a kind. We had that tool made just for the Cineroc. It certainly was not an Edmunds lens as so many have speculated. We had lost first one, then two of the four cavities by carelessness of the manufacturer. Then they played a numbers game with us to try to increase the price of the lens with only two healthy cavites. Then the people who processed the film said they didn't want to do it anymore. We couldn't find anyone anywhere who would custom process little 10' lengths of Super 8 film. Then on top of this came the new Damon management with their cost cutting games. That pretty well ended any hope to put some money into repairing Cineroc tooling. And pretty much everyone who wnated a Cineroc had bought one by then and sales were down. So it was many things that ended the Cineroc. Sure was a great product though. |
#36
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My wife can totally handle a gun and dress her prey, so I guess I don't see a problem with this . |
#37
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Hi Mike,
Thanks a lot for your tremendous contributions to this hobby. I have to say that it is your fault and your fault alone (bashing you not Estes) that I am as deeply involed in this hobby as I have become. I was mildly interested in the hobby in the late 70s and early 80s... Then I attended one of the Pearl River model rocket seminars in NY. That is where I met Herb Desind and saw his Cineroc films for the first time. I began hunting for a Cineroc like crazy and actually ended up getting one from Oakie Six out of your returns department while I was on a tour of Estes. That got me looking at the older designs and as a result the large collection and interest I have in the hobby today. No questions, just a big "THANK YOU"! -Scott Branche |
#38
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Honestly, this is a hard one for me. I don't really have one design that stands out as my favorite. I have always preferred my kits with simple lines and simple decors over the rest. Kits such as the Optima and Scorpian come to mind. While Bill Simon is the original creator of the Estes Alpha, my conversion of that kit from balsa to all plastic helped place it as the all time best seller. While we kept both kits in the line, the numbers produced and sold of the original kit simply fell through the floor. We have sold several million of the plastic Alpha since the early 70's. And we have re-tooled the plastics with no changes many times. They just wear out seeing so many molding cycles. The kit I have always wished I hadn't done was the Swat. I thought that a camo scheme on a large Satellite Interceptor would be super cool. It wasn't. |
#39
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Will Estes ever go back to the Red and white Alpha III?
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#40
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What was the competition with Centuri like for you guys doing all the designing? Were there many designs (not just rockets) that were meant to directly compete with a specific product they produced, or vice versa? I know the products eventually intermingled, so I'm referring to the days before that happened. Mr. Estes said he always had a friendly respect and competition with Mr. Piester as a company, but I never saw anything specific printed about it.
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I love sanding. |
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