Purdy and congrats!
L3 Certification Build: 8" Upscale Frenzy
- Thread starter Nathan
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Congrats, Nathan!
Congratulations Nathan! Welcome to L3. Enjoy the privilege of burning more APCP 
Glad your paintwork wasn't damaged, although you might be asked "Did it actually fly?"
Glad your paintwork wasn't damaged, although you might be asked "Did it actually fly?"
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Well done Nathan!
snrkl
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Successful L3 certification at MDRA today!!!!! It was a perfect flight to 3,926 ft on a rare calm day at Higgs Farm. And the best part is that the rocket didn't get a scratch on it.
I would like to thank Glenn, Dennis, Tom, Jess, Dave, and MDRA for all their help today. And also the following vendors who helped make this project a success:
AMWPro-X
Performance Hobbies
Upscale CNC
OneBadHawk
Missileworks
FruityChutes
Video coming soon . . .
Damn. I knew it was big, I hadnt mentally computed that it was THAT big... [emoji12]
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Heyyyy,,
Good for you Nathan,,
That's fantastic man...
I sure wish I was there to see the flight...
Good for you Nathan,,
I'm glad the flight went off without a hitch...
Teddy
Good for you Nathan,,
That's fantastic man...
I sure wish I was there to see the flight...
Good for you Nathan,,
I'm glad the flight went off without a hitch...
Teddy
ChrisAttebery
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Congratulations Nathan! That pad picture really gives some perspective to how big your project is.
rfjustin
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Congrats! Looking forward to seeing the video!
Congrats Nathan!
Will it be flying at BattlePark pretty soon?
Will it be flying at BattlePark pretty soon?
Congratulations on your success, Nathan.
Nathan
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YES! My problem now is that there are still no big 75mm CTI reloads available. That rocket needs a 5 or 6 grain 75mm motor. The M1810 that I used for certification I bought months ago and was one that was made before the CTI fire. AMWPro-X says that they expect to get some 75mm reloads in their January shipment. Once I get a motor I plan to fly it at Battlepark. Then I'll fly it one more time this season at Red Glare.
If Kenny is going to be onsite when you're at BattlePark, his site says he has a M1200 Spit Fire Loki load for the 76/6000. I can loan you the case if you want to fly that.
Nathan
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Thanks for the offer Jeff but this rocket needs about 1700 N avg thrust to get a 5:1 thrust to weight ratio. I'm hoping to get a M1770 Skidmark for Battlepark, which would take it to about 3600 ft.
Remember the 5:1 is only a rule-of-thumb and viable launch velocity off the rail should be simulated for the available rail length (and add a safety margin :wink. Motor profiles can differ wildly regarding progressive or regressive burn profiles. I consider it a normal part of a HPR flight, especially if trying to set a good example for people coming up the ranks. Save 5:1 for LPR/MPR IMHO.
You could find the M1200 might just work.
. Motor profiles can differ wildly regarding progressive or regressive burn profiles. I consider it a normal part of a HPR flight, especially if trying to set a good example for people coming up the ranks. Save 5:1 for LPR/MPR IMHO.You could find the M1200 might just work.
GrouchoDuke
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Congrats Nathan!!
Man that is stunning.FINISHED!!!!!!!!!!!
It's been 7 months since I started building this rocket and it is now done. The paint job alone took me 10 weeks.
I did all the polishing by machine using a Porter Cable 7424 polisher. First I polished with Meguiar's Ultimate Compound using a Lake Country white CCS pad. Then I polished again with Blackfire SRC Finishing Polish using a black (softer) CCS pad. The last step was a wax job using Chemical Guys 5050 paste wax.
And now some final glamour shots . . .
Congrats and very well done.
Nate
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Congrats again on a beautiful flight and an even more beautiful build. When I'm done building my next large rocket, I think I'll just ship it off to you for all the painting.
GrouchoDuke
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Gorgeous flight.
Simply Awesome and thank you for sharing your painting techniques.
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Nathan
Great flight and build.
How long was your booster tube shock cord? Maybe it was just the video but it looked like it may need to be a little longer. Looked like main chute tube was coming a little close to the booster.
Nathan
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Both recovery harnesses are 35 ft. Booster recovery harness is actually 38 ft because it attaches to a 3 foot long three point harness at the booster end. Should be plenty long.
Main chute deployment got a little scary. Main deployment charge fired at 600 ft but it took a few seconds for the big 10 ft chute to open up. Looks like it was down to about 200 ft by the time the main was open.
Main chute deployment got a little scary. Main deployment charge fired at 600 ft but it took a few seconds for the big 10 ft chute to open up. Looks like it was down to about 200 ft by the time the main was open.
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35' should be plenty. watching video I was thinking I hope they don't bang together. 50' might not be a bad idea for the booster.
Tony46Scaleman
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Great flight with front and center landing!
I have followed build from beginning and was waiting for video and such a text book package. Congrats!
We all enjoyed your first rate paint process. I cherish a few similar jaw dropping rockets painted by very high end "freind of family" custom paint shops and you showed us all the magic behind the scene details which is priceless!
Thanks for such a wonderful start thru finish build thread!
I have followed build from beginning and was waiting for video and such a text book package. Congrats!
We all enjoyed your first rate paint process. I cherish a few similar jaw dropping rockets painted by very high end "freind of family" custom paint shops and you showed us all the magic behind the scene details which is priceless!
Thanks for such a wonderful start thru finish build thread!
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