Hi,
Just started back into this great hobby last August and am proud to anounce two milestones. Though I haven't made it to a place where I can certify, (and I am working on a level 1 to 2 rocket. Just have to do the TTW fins, seal, sand, primer paint etc.:) ) I was able to achieve Mach 1 with an Apogee Aspire on April 9th at the Peoria Area Rocketry Society launch in Metamora, Illinois. I put all of the numbers as accurately as possible into Rocksim 7.x and got 832mph. I think this is quite a decent margin. I did lose the model at the time though. Tim Lehr from Wildman Rocketry announced, "You did use an SU motor on that one Kurt, didn't you?" Yes I did an SU G80-10.
Man it blasted off of the close pad so fast that nobody, including myself could track it. Well, I thought it went up so high and my workmanship was so good that God decided to keep it. Little did I know that it is good to go to a launch weekend and launch on the first day. A fellow found it 3/4 to a mile away on the SECOND day of the launch. I couldn't make it back for the second day. Note that I did launch a bunch of other mid-power models off on April 9th and got them back so I was actually quite satisfied.
That Saturday night, I emailed the president of the club that I had a great time at the launch, enjoyed watching about 6 greater than K engine launches (some of which hit 16,500 feet!) and I just slightly lamented that I lost the Aspire and would build a new one. Told him of the color pattern and the fact that Rocksim predicted Mach 1. I get an email on tuesday the 12th of April that a fellow modeler returned a model that matched the description of the one I lost!!! Is that kewl or what!!
Went to a launch in May where the weather was very cold and had the model returned to me.
Well today, June 26th, I stuck an F10-8 Medalist engine into the same model and BLASTED it over a mile high! I thought I was going to lose it so I stuck a return address label on it, taped it down, and fired it off. My goodness, that almost 8 second burn is incredible. It kept going, and going, and going and going. The winds were 5 to 9 MPG on my Kestrel wingmeter and I had the danged launch pad pointed a bit too far to the south. Next time, I have to stand back and look and see which way the ground is pitched before I launch!
Oh my gosh. It disappeared and a female spectator asked, "Is that a bottle rocket?" I just kept looking skyward and ignored her as I was very close to muttering a bunch of obscenities at her. After all the work I put into that thing and all of the trouble getting it back to me...............
Just when I was about to turn away and go about launching another model, I begin to hear, what I think is the flap of a mylar streamer. I look up and could not see the thing for the longest time. Eventually, I was able to fixate on the Aspire with a beautifully deployed 10 foot silver mylar streamer coming down a looooooonnnnnnggggg way away. I mentally marked the spot and went out to the area, which was in tall grass. I couldn't find the model.
Well I launched a bunch of other models, including a hacked Estes Mean Machine with oversized fins that I painted to look like an American flag on an F21-6. That model went up great to over 1000' and I got her back. She is a story herself of how I built her. Neat flight and Rocksim saved the day as far as my choice of engine for her.
Dumped off my 11 year old son who was getting overheated, watered up myself and went back to the field. I forgot to mention that my launch site is a 2 minutes drive from my house. See why I got back into the hobby? :)
Spent 20 minutes searching in the tall grass and I FOUND THE ASPIRE!!!! Boy, it did land quite a distance away and if I would have fired it a couple of degrees further to the north, it would have have landed onfield. I figured the rocket body would land deeper in the grass and the silver mylar streamer would lay on top of the grass. I was absolutely right and found the model as soon as I walked behind where it came down and scanned to see the silver mylar streamer glinting in the sunlight.
So, I am happy to report a Mach one speed and over a mile high flight on stuff that one doesn't have to be "certified" to do. Don't get me wrong. I am going to go for higher power but am absolutely amazed at what I was able to achieve with the tools available to me. Didn't have to be "certified" to do it.:)
Besides certifying I want to do a G power or lower dual deployment so I can launch at my local field. I just think it looks neat.
Kurt Savegnago