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  1. Hey Minnesota!
    The April high power rocket launch has been moved to Sunday, April 19, due to high winds on Saturday.
    Join us in North Branch to have fun with some large and some fast rockets. Or join us to launch your smaller Estes rockets.
    Details on
    tripolimn.org/

    #rocket #rocketry #highpowerrocketry #minnesota #geeks #science

  2. Hey Minnesota!
    The April high power rocket launch has been moved to Sunday, April 19, due to high winds on Saturday.
    Join us in North Branch to have fun with some large and some fast rockets. Or join us to launch your smaller Estes rockets.
    Details on
    tripolimn.org/

    #rocket #rocketry #highpowerrocketry #minnesota #geeks #science

  3. Hey Minnesota!
    The April high power rocket launch has been moved to Sunday, April 19, due to high winds on Saturday.
    Join us in North Branch to have fun with some large and some fast rockets. Or join us to launch your smaller Estes rockets.
    Details on
    tripolimn.org/

    #rocket #rocketry #highpowerrocketry #minnesota #geeks #science

  4. Hey Minnesota!
    The April high power rocket launch has been moved to Sunday, April 19, due to high winds on Saturday.
    Join us in North Branch to have fun with some large and some fast rockets. Or join us to launch your smaller Estes rockets.
    Details on
    tripolimn.org/

    #rocket #rocketry #highpowerrocketry #minnesota #geeks #science

  5. Hey Minnesota!
    The April high power rocket launch has been moved to Sunday, April 19, due to high winds on Saturday.
    Join us in North Branch to have fun with some large and some fast rockets. Or join us to launch your smaller Estes rockets.
    Details on
    tripolimn.org/

    #rocket #rocketry #highpowerrocketry #minnesota #geeks #science

  6. It was a rocket day in Minnesota... I have been mentoring the 12 year old son of a friend for almost 8 years, today he flew his rocket on an H motor to 2400 ft, at over 450 mph. This earned him the cerification level 1 and he is now allowed to fly high power rockets.

    #rocket #highpowerrocketry #modelrocketry

  7. It was a rocket day in Minnesota... I have been mentoring the 12 year old son of a friend for almost 8 years, today he flew his rocket on an H motor to 2400 ft, at over 450 mph. This earned him the cerification level 1 and he is now allowed to fly high power rockets.

    #rocket #highpowerrocketry #modelrocketry

  8. It was a rocket day in Minnesota... I have been mentoring the 12 year old son of a friend for almost 8 years, today he flew his rocket on an H motor to 2400 ft, at over 450 mph. This earned him the cerification level 1 and he is now allowed to fly high power rockets.

    #rocket #highpowerrocketry #modelrocketry

  9. It was a rocket day in Minnesota... I have been mentoring the 12 year old son of a friend for almost 8 years, today he flew his rocket on an H motor to 2400 ft, at over 450 mph. This earned him the cerification level 1 and he is now allowed to fly high power rockets.

    #rocket #highpowerrocketry #modelrocketry

  10. It was a rocket day in Minnesota... I have been mentoring the 12 year old son of a friend for almost 8 years, today he flew his rocket on an H motor to 2400 ft, at over 450 mph. This earned him the cerification level 1 and he is now allowed to fly high power rockets.

    #rocket #highpowerrocketry #modelrocketry

  11. Last summer this 5" diameter Doorknob rocket suffered an unfortunate lawn dart incident from a long ways up on an I245G flight. Took me a while, but it's back in flying shape once again. #rocketry #highpowerrocketry

  12. Last summer this 5" diameter Doorknob rocket suffered an unfortunate lawn dart incident from a long ways up on an I245G flight. Took me a while, but it's back in flying shape once again. #rocketry #highpowerrocketry

  13. Last summer this 5" diameter Doorknob rocket suffered an unfortunate lawn dart incident from a long ways up on an I245G flight. Took me a while, but it's back in flying shape once again. #rocketry #highpowerrocketry

  14. Last summer this 5" diameter Doorknob rocket suffered an unfortunate lawn dart incident from a long ways up on an I245G flight. Took me a while, but it's back in flying shape once again. #rocketry #highpowerrocketry

  15. Not every flight goes to plan, and today that's how it went. 7.5 out of 9 were successful. The half a point was for a cluster rocket that didn't fully light off the rail (3 out of 4), but was still recovered.

    Three pics. The smashed one is the newest version of a BT60 Goblin. Again the chute release pin didn't let go despite several successful tests with the small chute bundle. It made it to 2878' on an Aerotech F67C motor.

    The black sleek one is an upscale Estes Ninja, 2.5" diameter. Flew on an Aerotech F40W. Perfect flight to 1500'.

    The skyracha rocket, a 4" upscale Big Daddy, flew great on a H130W to 1354'

    #rocketry #highpowerrocketry #modelrockets

  16. Not every flight goes to plan, and today that's how it went. 7.5 out of 9 were successful. The half a point was for a cluster rocket that didn't fully light off the rail (3 out of 4), but was still recovered.

    Three pics. The smashed one is the newest version of a BT60 Goblin. Again the chute release pin didn't let go despite several successful tests with the small chute bundle. It made it to 2878' on an Aerotech F67C motor.

    The black sleek one is an upscale Estes Ninja, 2.5" diameter. Flew on an Aerotech F40W. Perfect flight to 1500'.

    The skyracha rocket, a 4" upscale Big Daddy, flew great on a H130W to 1354'

    #rocketry #highpowerrocketry #modelrockets

  17. Not every flight goes to plan, and today that's how it went. 7.5 out of 9 were successful. The half a point was for a cluster rocket that didn't fully light off the rail (3 out of 4), but was still recovered.

    Three pics. The smashed one is the newest version of a BT60 Goblin. Again the chute release pin didn't let go despite several successful tests with the small chute bundle. It made it to 2878' on an Aerotech F67C motor.

    The black sleek one is an upscale Estes Ninja, 2.5" diameter. Flew on an Aerotech F40W. Perfect flight to 1500'.

    The skyracha rocket, a 4" upscale Big Daddy, flew great on a H130W to 1354'

    #rocketry #highpowerrocketry #modelrockets

  18. Not every flight goes to plan, and today that's how it went. 7.5 out of 9 were successful. The half a point was for a cluster rocket that didn't fully light off the rail (3 out of 4), but was still recovered.

    Three pics. The smashed one is the newest version of a BT60 Goblin. Again the chute release pin didn't let go despite several successful tests with the small chute bundle. It made it to 2878' on an Aerotech F67C motor.

    The black sleek one is an upscale Estes Ninja, 2.5" diameter. Flew on an Aerotech F40W. Perfect flight to 1500'.

    The skyracha rocket, a 4" upscale Big Daddy, flew great on a H130W to 1354'

    #rocketry #highpowerrocketry #modelrockets

  19. My kid, the rocket transporter :) He helped fetch the 5" Big Daddy while I was prepping another. #rocketry #highpowerrocketry

  20. My kid, the rocket transporter :) He helped fetch the 5" Big Daddy while I was prepping another. #rocketry #highpowerrocketry

  21. My kid, the rocket transporter :) He helped fetch the 5" Big Daddy while I was prepping another. #rocketry #highpowerrocketry

  22. My kid, the rocket transporter :) He helped fetch the 5" Big Daddy while I was prepping another. #rocketry #highpowerrocketry

  23. I bench tested Black Widow's new electronics last week, and only three of the four channels fired. I went through the connections and they seemed OK, so I set up another test, moving the unburned match to another channel. This time, the altimeter showed that channel with no continuity, confirming that it was a bad match.

    With a good match on that channel, all four channels fired just fine. Onward!

    Video of test, showing the BlueRaven app: youtube.com/watch?v=NTlh-1UFDhk

  24. #rocketry #highPowerRocketry

    I bench tested Black Widow's new electronics last week, and only three of the four channels fired. I went through the connections and they seemed OK, so I set up another test, moving the unburned match to another channel. This time, the altimeter showed that channel with no continuity, confirming that it was a bad match.

    With a good match on that channel, all four channels fired just fine. Onward!

    Video of test, showing the BlueRaven app: youtube.com/watch?v=NTlh-1UFDh

  25. #rocketry #highPowerRocketry

    I bench tested Black Widow's new electronics last week, and only three of the four channels fired. I went through the connections and they seemed OK, so I set up another test, moving the unburned match to another channel. This time, the altimeter showed that channel with no continuity, confirming that it was a bad match.

    With a good match on that channel, all four channels fired just fine. Onward!

    Video of test, showing the BlueRaven app: youtube.com/watch?v=NTlh-1UFDh

  26. #rocketry #highPowerRocketry

    I bench tested Black Widow's new electronics last week, and only three of the four channels fired. I went through the connections and they seemed OK, so I set up another test, moving the unburned match to another channel. This time, the altimeter showed that channel with no continuity, confirming that it was a bad match.

    With a good match on that channel, all four channels fired just fine. Onward!

    Video of test, showing the BlueRaven app: youtube.com/watch?v=NTlh-1UFDh

  27. OK, I found some 1S 380mAH batteries rated 25C with current protection, so they should be able to deliver 9.5A if I'm capable of arithmetic on a Sunday. And they have Molex connectors, not JST-PH. Back in business in a couple of days.

  28. OK, I found some 1S 380mAH batteries rated 25C with current protection, so they should be able to deliver 9.5A if I'm capable of arithmetic on a Sunday. And they have Molex connectors, not JST-PH. Back in business in a couple of days. #rocketry #HighPowerRocketry

  29. OK, I found some 1S 380mAH batteries rated 25C with current protection, so they should be able to deliver 9.5A if I'm capable of arithmetic on a Sunday. And they have Molex connectors, not JST-PH. Back in business in a couple of days. #rocketry #HighPowerRocketry

  30. OK, I found some 1S 380mAH batteries rated 25C with current protection, so they should be able to deliver 9.5A if I'm capable of arithmetic on a Sunday. And they have Molex connectors, not JST-PH. Back in business in a couple of days. #rocketry #HighPowerRocketry

  31. Awww... #EngineeringFail on my part. My overkill battery will in fact kill my altimeter.

    "The largest lithium polymer battery that should be used with the Raven is 1S, 300 mAhrs, because larger lipo batteries can produce currents well in excess of the 22 Amp rating of the deployment channels in the event of an output short circuit, which can permanently damage the altimeter."

    Better to find out now, but that's back to the drawing board on my sled. #rocketry #HighPowerRocketry #RocketSurgery

  32. Awww... on my part. My overkill battery will in fact kill my altimeter.

    "The largest lithium polymer battery that should be used with the Raven is 1S, 300 mAhrs, because larger lipo batteries can produce currents well in excess of the 22 Amp rating of the deployment channels in the event of an output short circuit, which can permanently damage the altimeter."

    Better to find out now, but that's back to the drawing board on my sled.

  33. Awww... #EngineeringFail on my part. My overkill battery will in fact kill my altimeter.

    "The largest lithium polymer battery that should be used with the Raven is 1S, 300 mAhrs, because larger lipo batteries can produce currents well in excess of the 22 Amp rating of the deployment channels in the event of an output short circuit, which can permanently damage the altimeter."

    Better to find out now, but that's back to the drawing board on my sled. #rocketry #HighPowerRocketry #RocketSurgery

  34. Awww... #EngineeringFail on my part. My overkill battery will in fact kill my altimeter.

    "The largest lithium polymer battery that should be used with the Raven is 1S, 300 mAhrs, because larger lipo batteries can produce currents well in excess of the 22 Amp rating of the deployment channels in the event of an output short circuit, which can permanently damage the altimeter."

    Better to find out now, but that's back to the drawing board on my sled. #rocketry #HighPowerRocketry #RocketSurgery

  35. Awww... #EngineeringFail on my part. My overkill battery will in fact kill my altimeter.

    "The largest lithium polymer battery that should be used with the Raven is 1S, 300 mAhrs, because larger lipo batteries can produce currents well in excess of the 22 Amp rating of the deployment channels in the event of an output short circuit, which can permanently damage the altimeter."

    Better to find out now, but that's back to the drawing board on my sled. #rocketry #HighPowerRocketry #RocketSurgery

  36. The battery is a 7.4V 1200mAH quadcopter battery, which is definitely overkill, but my motto appears to be "anything worth doing is worth overdoing" and I'm leaning into it. #rocketry #HighPowerRocketry #RocketSurgery

  37. The battery is a 7.4V 1200mAH quadcopter battery, which is definitely overkill, but my motto appears to be "anything worth doing is worth overdoing" and I'm leaning into it.

  38. The battery is a 7.4V 1200mAH quadcopter battery, which is definitely overkill, but my motto appears to be "anything worth doing is worth overdoing" and I'm leaning into it. #rocketry #HighPowerRocketry #RocketSurgery

  39. The battery is a 7.4V 1200mAH quadcopter battery, which is definitely overkill, but my motto appears to be "anything worth doing is worth overdoing" and I'm leaning into it. #rocketry #HighPowerRocketry #RocketSurgery

  40. The battery is a 7.4V 1200mAH quadcopter battery, which is definitely overkill, but my motto appears to be "anything worth doing is worth overdoing" and I'm leaning into it. #rocketry #HighPowerRocketry #RocketSurgery

  41. It's getting a new sled (which itself took 5 or 6 iterations to get right) and a new altimeter, the brand new Featherweight BlueRaven. I'm waiting on some wiring connectors which should arrive today. Also has my new favorite switch, the Lab Rat Rocketry pull-pin switch. #rocketry #HighPowerRocketry #RocketSurgery

  42. It's getting a new sled (which itself took 5 or 6 iterations to get right) and a new altimeter, the brand new Featherweight BlueRaven. I'm waiting on some wiring connectors which should arrive today. Also has my new favorite switch, the Lab Rat Rocketry pull-pin switch.

  43. It's getting a new sled (which itself took 5 or 6 iterations to get right) and a new altimeter, the brand new Featherweight BlueRaven. I'm waiting on some wiring connectors which should arrive today. Also has my new favorite switch, the Lab Rat Rocketry pull-pin switch. #rocketry #HighPowerRocketry #RocketSurgery

  44. It's getting a new sled (which itself took 5 or 6 iterations to get right) and a new altimeter, the brand new Featherweight BlueRaven. I'm waiting on some wiring connectors which should arrive today. Also has my new favorite switch, the Lab Rat Rocketry pull-pin switch. #rocketry #HighPowerRocketry #RocketSurgery

  45. It's getting a new sled (which itself took 5 or 6 iterations to get right) and a new altimeter, the brand new Featherweight BlueRaven. I'm waiting on some wiring connectors which should arrive today. Also has my new favorite switch, the Lab Rat Rocketry pull-pin switch. #rocketry #HighPowerRocketry #RocketSurgery

  46. My current project, since I've decided to stop feeling guilty about jumping around between projects, and just do what makes me happy at the moment. I'm refurbishing an old (~7 years old) rocket, Black Widow. This is my favorite kind of rocket to fly, 54mm motor in a 75mm tube. But it's had some usability issues that required some more iteration. #rocketry #HighPowerRocketry #RocketSurgery

  47. My current project, since I've decided to stop feeling guilty about jumping around between projects, and just do what makes me happy at the moment. I'm refurbishing an old (~7 years old) rocket, Black Widow. This is my favorite kind of rocket to fly, 54mm motor in a 75mm tube. But it's had some usability issues that required some more iteration.

  48. My current project, since I've decided to stop feeling guilty about jumping around between projects, and just do what makes me happy at the moment. I'm refurbishing an old (~7 years old) rocket, Black Widow. This is my favorite kind of rocket to fly, 54mm motor in a 75mm tube. But it's had some usability issues that required some more iteration. #rocketry #HighPowerRocketry #RocketSurgery

  49. My current project, since I've decided to stop feeling guilty about jumping around between projects, and just do what makes me happy at the moment. I'm refurbishing an old (~7 years old) rocket, Black Widow. This is my favorite kind of rocket to fly, 54mm motor in a 75mm tube. But it's had some usability issues that required some more iteration. #rocketry #HighPowerRocketry #RocketSurgery

  50. My current project, since I've decided to stop feeling guilty about jumping around between projects, and just do what makes me happy at the moment. I'm refurbishing an old (~7 years old) rocket, Black Widow. This is my favorite kind of rocket to fly, 54mm motor in a 75mm tube. But it's had some usability issues that required some more iteration. #rocketry #HighPowerRocketry #RocketSurgery

  51. Totally Not A King Kraken. Ready to fly.

    38mm, 3" mailer tube, printed cone, baffled, zipperless.

    #rocketry #highpowerrocketry

  52. Totally Not A King Kraken. Ready to fly.

    38mm, 3" mailer tube, printed cone, baffled, zipperless.

    #rocketry #highpowerrocketry