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Wanted PerfectFlite altimeter needed for TARC team

SpacexNate

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Hello everyone!

I am part of a TARC team located in Edgewater, Maryland. In one of our test flights, the nose cone became detached from the rocket along with the altimeter, and we lost the altimeter. The final qualification flights are due on April 4th, and we are unsure if we can get an altimeter shipped to us in time.

Is there anyone local in Maryland that has a PerfectFlite altimeter (we currently use the Firefly altimeter) approved for the TARC challenge and would that would be willing to lend it to us for our qualification flights?

Thank you so much in advance! Let us know if you can help!
 

heada

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Hello everyone!

I am part of a TARC team located in Edgewater, Maryland. In one of our test flights, the nose cone became detached from the rocket along with the altimeter, and we lost the altimeter. The final qualification flights are due on April 4th, and we are unsure if we can get an altimeter shipped to us in time.

Is there anyone local in Maryland that has a PerfectFlite altimeter (we currently use the Firefly altimeter) approved for the TARC challenge and would that would be willing to lend it to us for our qualification flights?

Thank you so much in advance! Let us know if you can help!
Do you need a recording alt or a deploying alt? If you need recording only, I have a Alt15K/WD that I purchased 10-ish years ago and have never used. I'll donate it to a TARC team. Send me your mailing address and I'll send it.

Edit: here is the link to my original post offering the 2 I had, now just this one.

 
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BEC

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Do you need a recording alt or a deploying alt? If you need recording only, I have a Alt15K/WD that I purchased 10-ish years ago and have never used. I'll donate it to a TARC team. Send me your mailing address and I'll send it.

Edit: here is the link to my original post offering the 2 I had, now just this one.

TARC requires one of three Perfectflite altimeters: APRA, FireFly, PNut. No other options are permitted. So he can't use your older devices.

I'd offer up one of mine, but there's no time. Scores are due on Monday at midnight EDT and I'm on the west coast.
 

Johnly

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I'll post the request to the NAR Sections forum and see if that helps find an altimeter for them.
 

heada

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TARC requires one of three Perfectflite altimeters: APRA, FireFly, PNut. No other options are permitted. So he can't use your older devices.

I'd offer up one of mine, but there's no time. Scores are due on Monday at midnight EDT and I'm on the west coast.
They must have removed the Alt15k in the last year or two. It was a valid option in 2020
 

SpacexNate

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Thanks for your responses! We hope to get the altimeter in in time, but I'm not sure on the shipping status.

Keep me posted on the NAR forum please!
 

BEC

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They must have removed the Alt15k in the last year or two. It was a valid option in 2020
This not correct. I have copies of the rules going back to 2012 on my computer. In 2012 the Alt 15K/WD was allowed. That was its last year. For 2013-2015 the only choices were Pnut or APRA. In 2016 the FireFly was added. The later units (Pnut, FireFly, APRA) have much better pressure sensors than Alt 15k/WD.

This is a screen clip of the 2020 rules.

Screen Shot 2022-03-31 at 9.06.34 PM.png

This is 2012:

Screen Shot 2022-03-31 at 9.06.34 PM.png

This is 2013:

Screen Shot 2022-03-31 at 9.25.11 PM.png
 

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heada

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In that case, a team used an invalid alt for their qualifying flight 2 years ago.

TARC should open the list up to other manufacturers and other alts. Having just 1 manufacturer and 3 alts is too few and we know that Perfectflite has been crazy busy getting devices ready every year.
 

Brian2007

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Hello everyone!

I am part of a TARC team located in Edgewater, Maryland. In one of our test flights, the nose cone became detached from the rocket along with the altimeter, and we lost the altimeter. The final qualification flights are due on April 4th, and we are unsure if we can get an altimeter shipped to us in time.

Is there anyone local in Maryland that has a PerfectFlite altimeter (we currently use the Firefly altimeter) approved for the TARC challenge and would that would be willing to lend it to us for our qualification flights?

Thank you so much in advance! Let us know if you can help!

My TARC team will be doing qualification flights at MDRA on Saturday or Sunday, if you're there then I could let you borrow a Perfectflite Firefly altimeter for the day.

Tip for next year: get more than you need at first, so you have backups in case you lose any.
 

cerving

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In that case, a team used an invalid alt for their qualifying flight 2 years ago.

TARC should open the list up to other manufacturers and other alts. Having just 1 manufacturer and 3 alts is too few and we know that Perfectflite has been crazy busy getting devices ready every year.
Not sure how that could happen... the NAR observer is supposed to know which altimeters are permitted. I do get why they're limiting it to a single manufacturer... different vendors have different ways of determining apogee, so they don't want teams "shopping" for altimeters. One vendor, one apogee algorithm. PerfectFlite has also been a pretty good TARC sponsor over the years, kudos to them.

Historical Note: The name "Eggtimer" came from the idea that it was going to be used for TARC flights. I was already well into the design/testing phase of the original Eggtimer Classic when I found out that PerfectFlite had a lock on it. I liked the name, though, so I kept it.
 
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