Pretty cool data set, it reads well if you take a moment to figure out the colors.

So, does this mean the new Parrots "buggs" are worked out and are about ready? I have a CF Sleeve and other CF materials that I am going to build a bird with for next month.

Too bad you didn't make it Sat, man that was an AWESOME day. The winds aloft were almost nil. We had several birds land around the cars and one dual deploy landed about 45'+ from the cars on the N end. I think it was a 9k L2 cert flight......

I believe the software is done, but I'm still waiting to get a panel of Parrots back from my surface-mount assembler. Then I'll try to ship about a week after that.

At the Tripoli Spring Fling today, Barack-it went to 7492 on an F10. The previous record was 6785. Tripoli record forms are filled out and I'll mail them in tomorrow. More pictures and graphs to follow after I get the kids to bed.

Adrian, congratulations on an awesome boost, and welcome to the TRA record club 🙂

How did the boost compare to your simulations? I saw the pics from the launch (posted on another forum) and it looks like you guys had a great day.

JW

Congratulations Adrian, I stand corrected. Get me the info and I'll update the records page.

Warren

Adrian, congratulations on an awesome boost, and welcome to the TRA record club Smile

How did the boost compare to your simulations? I saw the pics from the launch (posted on another forum) and it looks like you guys had a great day.

Thanks, John. The conditions were the best I have ever seen. No surface wind at all until about 1:00.

Once I corrected the noseone surface finish to matt (it was a 300-grit sanded Apogee noseone) the sim was right on the money. One thing that's different in the sim is that it landed quite a bit further than what the sim would suggest is reasonable. I suppose the upper-level winds were quite a bit faster. It took off with maybe a 5 degree angle coming out of the tower toward the East, and then the wind blew it southeast.

Here's where we went to find the rocket:
http://maps.google.com/maps/ms?ie=UTF8&hl=en&t=p&msa=0&msid=114868309855736157763.0004504d5aea2fba936ef&ll=39.00778,-105.708132&spn=0.036082,0.077333&z=14

Here's a picture from shortly before the launch:

The avionics sled fits into the nosecone up to the red line you see on the cardboard.

Congratulations Adrian, I stand corrected. Get me the info and I'll update the records page.

Thanks, Warren. Will do. Are you sure you want to accept a record from Hartsel? 😉

Historically we've always accepted NCR member flights regardless of where they are set so long as the witnesses are NCR members as well.

Warren

Adrian, I see you went to a much, much more robust shock cord. I'll take credit for that part 🙂 When weighting nosecones, etc. you need to have it all stay together. It is well worth the extra weight and length. That lightweight material you have been using has probably cost you more than a couple of records.

Adrian, I see you went to a much, much more robust shock cord. I'll take credit for that part 🙂 When weighting nosecones, etc. you need to have it all stay together. In my opinion, it is well worth the extra weight and airframe length required to go to heavier a shock cord. That lightweight material you have been using has probably cost you more than a couple of records.

John,

You're right, I had been pushing too close to the edge, and over the edge in a lot of cases. But this one was built with G80s and H motors in mind

Here's the picture I sent in with the record form:

In the picture you see Apogee's 1500 lb shock cord, but it's only about a foot long, just long enough to hang out the end of the tube in back for zipper protection, and to absorb the brunt of the deployment charge up front. Not shown in the tube is a little nomex patch for more protection for the rest of the shock cord. But for most of it, I used 300 lb Kevlar cord. What you saw on the 24mm G record attempt I had in May was the 100 lb Kevlar cord.

I still haven't gotten my F10 motor out yet; the masking tape has heat-fused it in pretty well.

I found the only way to deal with the tape sticking too well due to heat is to remove the motor while it is still warm. I actually destroyed a CF fin can and fins trying to remove a motor stuck to it.

W

Yikes. Maybe if I heat it up that will help soften it. The fins are quite stiff and strong but I wouldn't know that I'm pushing too hard until it's too late.

I'd like to re-fly this with G80s (or maybe the H238) with both the Apogee curved nosecone I used yesterday and a conical one I have ready to go. It should be interesting to see the Cd vs. velocity plot for the two cones, to answer once and for all (at least for me) which type of cone is really lower drag at the different velocities.