15x15x4mm nominal dimensions. Moves 0.46cfm.
We need the rest of the data- how many degrees does the fan lower the temperature by? New thermal image required...I love it when a plan comes together. 3D printed the mounts for my small fan to go into the Vertical Trajectory System flight computer. Mounted the fan in place and connected it up.Adding extra spacers to the FC worked really well. Works as expected and the airflow is a reasonable amount. I will redo the mounts in glass-filled resin in the near future. They are currently PLA+.
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Also received in the mail the RF Power Meter I ordered. Can take up to 1W directly connected. Now I can verify my Tx power.
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Also, will the change in airflow effect any baro sensor?We need the rest of the data- how many degrees does the fan lower the temperature by? New thermal image required...
Wow! I have tears in my eyes and a lump in my throat. That was a perfect reply said in words I could only feel but not express. It's been a while (I'm closing in on 70), but I miss my dad to this day. We have these little talks about various engineering challenges, design considerations and a multitude of other life issues I feel I need advice on. Never told anyone, but it makes me feel better imagining I can hear his voice. This brilliant, patient, gentle genius was a warrior for 26 years and was too often missing from my childhood, but when he was home, he was the consummate teacher of aerodynamics, electronics (he built all of our televisions!) math, science, chemistry and astronomy. Degrees didn't matter to him (he had three), but he did love to fly so the Air Force got most of his time, especially during the cold war. We lived all over the world. He walked point all the way. I can't express my appreciation for your response (validation?) as I am not particularly spiritual and this really resonated deep down. It kinda took me off guard, thus my everlasting thanks, Sandy.Doug,
As someone who is dealing with multiple losses, I'll let you know something I realized (for me at least) only recently. When I get one of those "I can't wait to tell/ask dad about this idea" which is my real reaction, but I realize its no longer possible, I used to be knocked off my feet.
I still have those thoughts and "I can't wait to tell/ask dad about this idea" but now instead of getting the wind knocked out of me, I think about how he would have listened to the idea, challenged me about it, questioned the validity and supported me doing it or learning more about it. As weird as it is, in those moments, his guidance, friendship and father-ship (not a word. . . ) is alive and we share it, even only on my end from my perspective.
Please share everything you did with John. It is an honor to your friendship with John that you want to share the work and bounce ideas off of him. As weird as it is, sometimes the ideas do bounce back.
Sorry for your loss, but happy for your continued work.
Sandy.
I have what seems to be a complete Strato-Blaster and Sweet-Vee in their boxes.
So far today I put the landing legs on a rocket that didn't start out to be a sci-fi rocket but has turned into one. Last night I put the color coats on my project that is the farthest along. In two days I'll put the finishing touches on it. Here are some pics of the rocket on the painting stake. AKA Pad 1A of Pahrumpian Rockets. In one pic the Moon is behind the rocket.View attachment 481803View attachment 481804
I am not using the baro in the FC, just the IMU for stabilisation.Also, will the change in airflow effect any baro sensor?
But what about the blinds?Cut out new fins for Big Bertha, from a basswood slat that was intended as a window-blind replacement. Wanted something tougher than balsa since the MMT will be 24 mm, and she'll fly on E and F motors.
You come up with nice designs. These are excellent.I have been derelict in keeping up. So here is what I've been doing. Today I sanded the Krylon 2 in 1 primer off one of the rockets I've been working on. The Krylon is better than the Rusto. Very little dust and didn't clog the sandpaper. Color tomorrow. Today I also cut out and sanded the fins for the other rocket I'm working on. Earlier in the week I finished the missile. It is a 3" LOC BT with a 54mm x 15" mmt. The fins are 1/4" 5 ply from BMS. It's 68 " long and weighs 70 ounces with the chutes. It is dual deploy. Before that rocket was done I finished the Sci-Fi rocket. It is a 3" BT from BMS and has a 38mm x 15" mmt. The fins are 1/4" 5 ply also from BMS. The fins are lower that the BT so I reinforced the tips with more 1/4" ply so they are 3/4" thick at the tips. It's 56" long and weighs 50 ounces with a chute. It is single deploy. I made a short avbay for it to hold an Eggtimer apogee. It sits inside the rocket and is attached to the nose cone by a quick link. It will be ejected when the charge fires. There are vents in it and the BT. I'll use a JLCR with it. I am hoping that I can move that avbay from one rocket to another. If it works I'll make a 2.6" bay for the other rockets I want to use it in. Has anyone tried to do this or see problems with the set up? This coming Saturday, the 18th is our monthly launch. We haven't had one since May. It's just to hot to fly in the summer. But this Saturday I'm going to fly The Whistle Pod rocket. I sure hope it works. I'm taking a neighbor with me who has been dabbling with sugar motors. It will be the first organized launch he has been to. Going to hook another one. I also talked to my former employer and he is coming along also. Should be an interesting day. That is if the wind cooperates. So here are the pictures.View attachment 481599View attachment 481600View attachment 481601View attachment 481602View attachment 481603View attachment 481604View attachment 481605View attachment 481606View attachment 481607View attachment 481608
I attempted to assemble my first Aerotech RMS reloadable, a D13-4 that had been sitting in my Box of Abandoned Sh*t basically forever. I ruined the thing, aborted the assembly, consulted a YouTube tutorial, and figured out my error: The casing had been sitting in said BoAS with the forward and aft closures installed on it for longer than I can remember, and being entirely unfamiliar with reloadable motor construction, I had misidentified the forward closure as part of the actual casing. Thus, the instruction to insert a forward O-ring after inserting the liner assembly made no sense to me at the time.
The reloads came in a three pack, so right now I have one with a liner tube and delay element that I ruined during disassembly, one that I'm confident I can load correctly for a static test, and one to actually fly.
I pulled it off!!!I got my Arch Blast from DG&A today. This is the first rocket I’ve purchased from them. So upon opening it I see the airframe doesn’t have through the wall fins. I have to cut out slots myself. I started my first slot and it doesn’t look pretty.
I have my doubts but we will see how it looks when I’m finished.
I knew I should have bought a Loc or madcow.
I pulled it off!!!
It’s completed 3” diameter. 59” tall. 38mm motor mount. I put a 36” chute instead of the stock 30”….its miller time.
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