Some of you may have seen the prototype altimeter that Jim Amos had at MHM. I took the liberty of cut and pasting his features and benefits from another forum. See below:
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40K capable.
4X accuracy over the old RRC2 (with new calibration instrument).
No programming DIP switches... all interactive programming.
Last flight data stored in EEPROM and retrievable across power cycles.
Flexible event control with individual drogue/main timing stages.
3 modes of operation (standard dual, redundant drogue, redundant main).
Same output terminal sizes as the original RRC.
Dedicated terminals for power switch, battery, and deployment charges.
Toggle Switch selection of 2 independent setpoint profiles.
29mm friendly and about 2.5" long.
Audible continuity on pad and post flight apogee chirp (same as RRC2).
9V battery operation.
Setpoints:
Main AGL: 300-3000 ft in 100' increments
Mach Inhibit: 0-30 seconds
Drogue Delay: 0-15 seconds
Main Delay: 0-15 seconds
Deployment mode: (described above)
Operations mode: high-low chirp tone / power-up status chirp
Last Flight Data in EEPROM:
Apogee AGL (ft)
Peak Velocity (ft/sec)
Time to apogee (sec)
Total launches (cumulative counter)
Diagnostics:
Direct battery voltage measurement (1/10 volt resolution)
Direct MSL altitude measurement (check ambient pressure offset)
Continuity input test
Output integrity test
Priced at or below the current RRC2 offering ($90).
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I especially like the peak velocity feature! Very nice!
YESSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS!!!!!!!!!!!!!!!
And WHEN can these be purchased? 8)
not soon enough! 😀
Jim said he hoped to have some by LDRS. I requested s/n 0000001 🙂
I requested s/n 0000001
Ha! Well, one's going in my L3 bird that's for sure!
I especially like the max velocity (in fps) reading. Pretty clever... it just takes the value from one reading and compares it to the prior value and converts that to feet-per-sec and stores the highest value.
Earlier I had said I was never going to push my J570 rocket again, but now I want to know if I broke 2,000fps (I think I did). Very cool feature...
the timing of this could be fortuitous, as i'm just getting ready to by my first alt .... but i really want complete flight logging, like mawd does, so i can download the data into a spreadsheet and generate all kinds of interesting, and worthless, charts. it doesn't sould like this will do that - only a few pieces of flight data. is this correct, or am i missing something?
That'd be a question for Jim, I think the list I posted was a partial list of features and benefits.... not sure what (if anything) is downloadable. Jim's unit is pretty all-encompassing, so he may have you covered.
I went away from the MAWD to the HA-45 as I needed the higher altitude capability. One really cool thing the HA-45 and Jim's new unit have is an audible battery check. When you power up the HA-45, one of the things it beeps out is voltage. So... if you hear 9 beeps, a pause, and then 4 beeps, you know your 9v battery has (in this case) 9.4v of power.
That sort of thing is really cool if you prep a week or two ahead of time and you worry about a slow drain on your battery... or if you forgot to check it when you put it in. I'm glad Jim put this into his design.
so, other than the mawd, what other data logging altimeters would you recommend?
so, other than the mawd, what other data logging altimeters would you recommend?
I'm the wrong guy to ask 🙂 I don't do data logging. FWIW, I bought the MAWD (and later the HA45) because I needed something to fit a 24mm tube. The fact that the HA45 also goes to 40K+ was a bonus. I used the HA45 in my J570 shot last week that got to ~23K MSL. That ebay is very tiny, and I just didn't have room for a conventional RRCX-40K. Jim's new unit is going to be quite small, which makes me very happy.
I did splurge and get the MAWD cable, but never once plugged it in...
btw, i was BORN in iowa, it ain't that bad ...
oh, wait, yeah, it is! 😯
btw, i was BORN in iowa, it ain't that bad ...
oh, wait, yeah, it is! 😯
Iowa is fine. It is the circumstances of my particular situation that prompted the editorial punctuation -- not the geographical context. That aside, the rocketry waiver situation there makes me want to take up knitting.
I'll probably be back for Oktoberfest this year, and I'll make MHM an annual pilgrimage. And all should know that I'll be monitoring those altitude records JIC someone tries to horn in 😉
but i really want complete flight logging so i can download the data into a spreadsheet and generate all kinds of interesting, and worthless, charts.
The G-Wiz MC2 provides for exporting data into a spread sheet. But for general data logging you have to go to the G-Wiz DCS. It also allows for exporting the data.
Doug
Jim said he hoped to have some by LDRS. I requested s/n 0000001 🙂
HA!!! you were to late as I requested #0000001 and #0000002.....................................................................................................................
About 4 months ago and again asked him when he was at my house showing a group of us the unit after the rained out MHM. Ive had the Data and spread sheet from Jim now on these products for about 6 months or better. In fact remember going to his place and holding his first beta unit. I was just not allowed to tell about it or share data till he released. VERY cool stuff here. I helped Jim a bit on Saturday with the test flights and I must say. VERY cool.
the timing of this could be fortuitous, as i'm just getting ready to by my first alt .... but i really want complete flight logging, like mawd does, so i can download the data into a spreadsheet and generate all kinds of interesting, and worthless, charts. it doesn't sould like this will do that - only a few pieces of flight data. is this correct, or am i missing something?
No you are correct about this. These units are a NEW replacement for the RRC2X line of product with added features and capabilities at a great price point. The calibration in these is Top notch and thats one of the biggest things, as well as it actually operates off of real MSL base then gets actual real Altitude followed by a very accurate AGL flight data for altitude. The key is the very precise Calibration that Jim is doing. The other benefits are no dip switches. Its all programmable via push button tone and LED. You can change the tones that it operates in so 2 altimeters wont be making the same noise, You can change what tones it makes or doesn't make, you can set a deployment event for a specific amount of time after apogee or even after a main altitude. Also the higher end units will go to 100 K as well as will have features I believe that have yet to be announced. This would be a great altimeter to fly in conjunction with a recorder as its reliable, High quality and its from the best in the game Missile Works.