Rocketjunkie
Addicted to APCP
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- Jan 19, 2009
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That is a really cool idea. I may have to try that with mine
The motors were CTI J210 Classic propellant. There aren't any other commercial motors with a cleaner burnI'd like to see a video with a cleaner burning motor for an unobstructed view.:eyepop:
Pretty much every thread about motors I expect an Aerotech related response from you.
Why can't I be the Northwest Aerotech representative?
The motors were CTI J210 Classic propellant. There aren't any other commercial motors with a cleaner burn
Wow, that's such a great place to put a camera! I love the view you get with it. No interference at all, except for the flames, unlike you would have with a body mounted cam. I'd like to see a video with a cleaner burning motor for an unobstructed view.:eyepop:
After seeing Burl's CHAD camera mount on his Test Mule #9 rocket at the July Orangeburg launch, I decided to make an addition to my Deuce.
Kodak Zi6 solid state camcorder -
I fly more Aerotech than anything else. Blue Thunder has as much smoke as CTI Classic. Warp 9 might be cleaner but the burn time and thrust level isn't compatible with the Deuce. I did hear something about a J99 though, sounds very interesting and I would like to try a pair. I like the J180 and would love to see C-slot Blue Thunder reloads for the 54/1280 and 54/1706 cases. One of my favorite motors was the old SU J285.
The Zi8 is the same size, 2.5 x 4.5 x 0.9 inches. It appears to be about $50 more and uses Li-Ion batteries instead of the NiMH batteries of the Zi6. I picked up the Zi6 at my local Wal-Mart.Here's a question - do you know if the Zi8 (1080p) is the same size? If so, I'll definitely get one to mount on my deuce - the video would be awesome.
With CTI motors, I wouldn't want to tamper with it. With Aerotech motors, no problem or just use an inert slug to fill the space.Assuming that was electronic based ejection, could the delay element have been greased to prevent the tracking smoke from appearing in the video?
I fly more Aerotech than anything else. Blue Thunder has as much smoke as CTI Classic. Warp 9 might be cleaner but the burn time and thrust level isn't compatible with the Deuce. I did hear something about a J99 though, sounds very interesting and I would like to try a pair. I like the J180 and would love to see C-slot Blue Thunder reloads for the 54/1280 and 54/1706 cases. One of my favorite motors was the old SU J285.
could the delay element have been greased to prevent the tracking smoke from appearing in the video?
No. If you grease the bottom face of the delay grain, it will still burn once the motor comes up to pressure. You would not be able to inhibit the delay from burning. If you want absolute clarity, you would have remove the delay element.
Justin
Not true. I've done it intentionally, and it will prevent the delay from burning if you grease it rather liberally.
My L2 rocket which I flew back in 2002 was flown with at K-700W for my L2. I LIBERALLY greased the entire plugged forward closure with SuperLube. I purposefully caked the face of the delay as well. Upon recovery of the rocket and requisite inspection of the motor, the entire delay was consumed.
Based on your statement of "not true", I must be a liar then? WTF? :confused2:
Please note I did NOT say EVERY time you grease the face of the delay, it will still burn. I learned many moons ago that blanket statements are generally not the best practice.
I just realized, I have an M-1315 loaded that is planned to fly next week Friday. I'm sure that 75mm delay WON'T burn right???
Justin
Put some money on it. I bet you win.
Now you're talking!
If I were a betting man, I would imagine that Cjl was able to inhibit a 38mm delay, not a 54mm or 75mm... That's speculation on my part. I have empirical data from my experiences from roughly (12) K-700's and (8) M-1315's ALL with heavily caked delay faces. I'm 20 for 20.
Justin
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