My First DD Launch!

[tg08]

I just launched my Hi-Flyer(I know I misspelled it) XXL earlier today on an F-52T-5. Not perfect but this is just a test for future rockets.

 

[kjhambrick]

Nice @tg08 !

I really miss the OTL fields at Fiesta Island.

Thanks for the memories !

-- kjh

 

[cwbullet]

Congrats. Hopefully a start to a long hobby.

 

[tg08]

Nice @tg08 !

I really miss the OTL fields at Fiesta Island.

Thanks for the memories !

-- kjh

Wow you recognized it! It really is a nice location; very temperate and pretty low winds.

 

[tg08]

Congrats. Hopefully a start to a long hobby.

For sure, I've been launching low and mid-power rockets up to now, I'm starting to transition to high-power.

 

[kjhambrick]

Wow you recognized it! It really is a nice location; very temperate and pretty low winds.

Yes, I used to fly with DART whenever I could.

What flight computer did you fly, @tg08 ?

I did MOST of my early AltAcc firmware testing at FI because it was so convenient from Imperial Beach and I could fly MPR rockets more frequently at FI than I could fly HPR at Ocotillo.

-- kjh( fly more, hike less )

 

[tg08]

Yes, I used to fly with DART whenever I could.

What flight computer did you fly, @tg08 ?

I did MOST of my early AltAcc firmware testing at FI because it was so convenient from Imperial Beach and I could fly MPR rockets more frequently at FI than I could fly HPR at Ocotillo.

-- kjh( fly more, hike less )

I flew an Altus Metrum Easymini, its all I could fit in that tiny payload bay. I'm hoping I can take my rockets to Tripoli and get my L1 cert soon.

 

[COSTransplant]

Great job and you stuck the landing too!

 

[darrenf]

Fantastic flight! I experimented with mid power dual deploy this year, going to try first high power DD either next month or next year if we get weathered out.

 

[tg08]

Great job and you stuck the landing too!

Thanks! Right back to the pad.

 

[tg08]

Fantastic flight! I experimented with mid power dual deploy this year, going to try first high power DD either next month or next year if we get weathered out.

Great luck with your endeavors!

 

[bad_idea]

I flew an Altus Metrum Easymini, its all I could fit in that tiny payload bay. I'm hoping I can take my rockets to Tripoli and get my L1 cert soon.

Congratulations! IMO, first electronic deploy is a more significant and meaningful milestone than L1, and electronic dual deployment even more so. It also means you'll more likely nail L1 when you go for it.

 

[86mustang408w]

Awesome, getting into DD myself!!

 

[tg08]

Nice, have fun!

 

[86mustang408w]

Congratulations! IMO, first electronic deploy is a more significant and meaningful milestone than L1, and electronic dual deployment even more so. It also means you'll more likely nail L1 when you go for it.

I kind of agree, I think they are equally significant to me. A lot of guys don't even go to or do DD even for L2. I think doing it like this, with smaller stuff definitely gives you can edge when it comes to your L3 cert. I see where a lot of guys replace DD with the chute release, they are cool but if your going all the way its a must. Yes, congratulations!!

 

[bad_idea]

I kind of agree, I think they are equally significant to me. A lot of guys don't even go to or do DD even for L2. I think doing it like this, with smaller stuff definitely gives you can edge when it comes to your L3 cert. I see where a lot of guys replace DD with the chute release, they are cool but if your going all the way its a must. Yes, congratulations!!

I'm a big advocate for learning new things on the smallest, lowest-enegy scale that's feasible. Better IMO to learn DD on mid-power, where anything that goes wrong will be less expensive and lower energy (hence likely safer) than with chunky, powerful L2 rockets with $100-200 motors where most people seem to learn it.

 

[thzero]

Congratulations! IMO, first electronic deploy is a more significant and meaningful milestone than L1, and electronic dual deployment even more so. It also means you'll more likely nail L1 when you go for it.

I agree.

I run a lot of DD on mid power rockets.

 

[kjhambrick]

I agree.

I run a lot of DD on mid power rockets.

I agree too !

But I am also learning that Dual Deploy in a small MPR is actually more difficult than it is in a relatively roomy HPR.

Keep at it @tg08 !

Waiting for that main on a Dual Deploy flight still gets my pulse rate going every time I launch

-- kjh

 

[tg08]

I totally agree, when the chute got jammed I thought I was gonna break the brand new flight computer!

 

[thzero]

I agree too !

But I am also learning that Dual Deploy in a small MPR is actually more difficult than it is in a relatively roomy HPR.

Keep at it @tg08 !

Waiting for that main on a Dual Deploy flight still gets my pulse rate going every time I launch

-- kjh

Smallest I've done it in is a bt-70 tube. Actually it was my first DD build.

No interest in going smaller....

 

[Art Upton]

I know a few will yell at the old guy ; but today I like the JL Chute release then Dual Deploy. Even on a I-65P my LOC ISP's payload bay had the Strato Logger it it to fire the apogee charge, pulling the main out wrapped in the release. Then the release let the chute go.

I've been moving away from DD as I have been downsizing my rockets in my retired years.

 

[jmasterj]

But I am also learning that Dual Deploy in a small MPR is actually more difficult than it is in a relatively roomy HPR.

Waiting for that main on a Dual Deploy flight still gets my pulse rate going every time I launch

I agree with both of these. 4" rockets are the sweet spot for me where I can reach my arm down the tube but everything is pretty manageable. My butt clenches until both events have occurred in every DD flight I've done (I'm only 5 DD flights in, so maybe I'll get calmer at some point).

 

[NTP2]

I had a successful test at the beginning of the school year but it took all summer because I had to make my own charges and such, how did you do it?

 

[kjhambrick]

I agree with both of these. 4" rockets are the sweet spot for me where I can reach my arm down the tube but everything is pretty manageable. My butt clenches until both events have occurred in every DD flight I've done (I'm only 5 DD flights in, so maybe I'll get calmer at some point).

Before this year when I RE-BAR'd, the smallest diameter I've ever dual deployed was a 1.9 inch diameter Vulcanite Scale Model with an AltAcc.

This worked great because the AltAcc fit just nicely in a 5-inch section of Totally Tubular CPL-1.88"-34" with a pair of 4-40 threaded rods.

Now I am flying the Blue Raven with a mag switch and I am trying to work my way down to a BT-50 ...

My AV-Bay mostly works but I recently suffered a brown-out in a BT-55 rocket when the streamer was ejected and the main did not deploy and it landed on an asphalt road ... Ouch ...

I am still working on designs, but the more I I've messed with it, the more I am coming to realize that I can't do any better than @Adrian A's Blue Raven AV-Bays ...

I just need more practice with my nut-driver

-- kjh

 

[Adrian A]

Thanks, Kjh!

 

[tg08]

I had a successful test at the beginning of the school year but it took all summer because I had to make my own charges and such, how did you do it?

I used apogee components ejection canisters, but you could a pvc pipe and duct tape over the top to hold the BP in.

 

[NTP2]

I used apogee components ejection canisters, but you could a pvc pipe and duct tape over the top to hold the BP in.

What igniter/Emach?
I used a vinyl tube with a normal igniter hot glued in you add the BP on top and hold it in with dog barf.

 

[tg08]

I use the Firewire Igniter, it doesn't need an explosive permit.

 

[NTP2]

I use the Firewire Igniter, it doesn't need an explosive permit.

Cool they are a little expensive for me I used a normal igniter you use on BP motors.

 

[tg08]

Cool they are a little expensive for me I used a normal igniter you use on BP motors.

Yeah, I don’t launch dual deploy much, so it is worth the cost for me.