First Time with MPR

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rcktnut

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Try a G64 sometime, your gonna love it, I like um better than reds or greens.
 

Rocket2Russia

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That is a very impressive photo! If you are posting images like that to your flickr page I want to be following you!!
 

johnnycarlos

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My third MPR flight, a Ventris on a G53-FJ. Not sure why it came off the pad at an angle, but it flew straight up and landed only about 30 yards away. Great flight. Very exciting.


Ventris_second_flight.jpg
 

BDB

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Looks great! I love the Ventris.

Have you started looking into altimeters, like the Jolly Logic Altimeter 3 or an Eggtimer Quantum? That's the next step.....(Sorry to be an enabler.)
 

johnnycarlos

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Have you started looking into altimeters, like the Jolly Logic Altimeter 3 or an Eggtimer Quantum? That's the next step.....(Sorry to be an enabler.)
I have not, and thanks for the detailed suggestion(specific models), that helps a lot. I'll check them it out. I did wonder how high it went. Thrustcurve says 1,890ft. I have trouble believing that. It did go out of sight though, and was a over a minute to land, so it must have gone quite high.
 

Nytrunner

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Looks great! I love the Ventris.

Have you started looking into altimeters, like the Jolly Logic Altimeter 3 or an Eggtimer Quantum? That's the next step.....(Sorry to be an enabler.)

And if you do add the extra weight of electronics and such, you should consider a stronger motor.
Just flew one setup for main chute deployment on a G118: Don't blink (and be darn sure the fins are on strong)
 

LithosphereRocketry

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And if you do add the extra weight of electronics and such, you should consider a stronger motor.
Just flew one setup for main chute deployment on a G118: Don't blink (and be darn sure the fins are on strong)
I'm not sure how necessary that really is - just an altitude-only altimeter weighs barely anything.

On altimeters, you can't really beat the PerfectFlite Firefly, IMHO - $25, up to 100K ft +/- 1ft, fits in a BT-20... The Jolly Logic ones are wonderful, but expensive.

Of course, I've never done dual deploy, just altitude tracking. For DD you need something fancier.
 

johnnycarlos

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I'm not sure how necessary that really is - just an altitude-only altimeter weighs barely anything.

On altimeters, you can't really beat the PerfectFlite Firefly, IMHO - $25
Oh I like this idea. Inexpensive *and* light. Speaking my language!
 

Cabernut

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The firefly is great when you only need altitude and max speed. Can fit it in anywhere except a Mosquito.
 

johnnycarlos

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The firefly is great when you only need altitude and max speed. Can fit it in anywhere except a Mosquito.
What about setting it up for launch? I watched a video from Apogee and it seemed to trip him up a little. And counting out the blinks looks a bit arduous. But still the price and weight look great.
 

Cabernut

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What about setting it up for launch? I watched a video from Apogee and it seemed to trip him up a little. And counting out the blinks looks a bit arduous. But still the price and weight look great.
It's pretty simple, just have something narrow handy to press the tiny button. I have a short loop of 220# kevlar string going through the holes on one side to which I attached a small carabiner. Takes just a few seconds to reset it and clip it on to something. Takes longer to count out the blinks, which is the only downside.
 

LithosphereRocketry

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It's pretty simple, just have something narrow handy to press the tiny button. I have a short loop of 220# kevlar string going through the holes on one side to which I attached a small carabiner. Takes just a few seconds to reset it and clip it on to something. Takes longer to count out the blinks, which is the only downside.
I just push it with my fingernail... A thin object might be easier though.
 
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