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Showing results 1 to 25 of 500
Search took 0.28 seconds. Search: Posts Made By: Mark II |
Forum: Vendors
01-11-2013, 12:48 AM
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Replies: 11
Views: 706
Posted By
Mark II
United Federation of Planets
Klingon...United Federation of Planets Klingon Empire Romulan Star Empire Galactic Empire (Palpatine's New Order) Alliance To Restore The Republic (aka the Rebel Alliance) Twelve Colonies of Kobol Cylon... |
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Forum: Model Rocket History
01-10-2013, 11:41 PM
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Replies: 63
Views: 3,004
Posted By
Mark II
Acquiring the required permits for black powder...Acquiring the required permits for black powder motor manufacture is a long, tedious and very expensive process from what I understand. You can't just open a business and expect to start production... |
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Forum: Vendors
12-24-2012, 07:06 AM
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Replies: 37
Views: 2,586
Posted By
Mark II
Kopter? Kopter is coming back? Someone please...Kopter? Kopter is coming back? Someone please pinch me so that I'll know that this isn't a dream. Kopter is one of the companies that I really, really regretted never seeing due to my long sabbatical... |
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Forum: Ask the Doctor
10-18-2012, 01:28 AM
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Replies: 12
Views: 726
Posted By
Mark II
The Maxi Streak used BT-60. Any other upscale...The Maxi Streak used BT-60. Any other upscale ought to be bigger than that. I used to be so impressed at the claim in the catalog that the Streak could potentially have "2,000 ft. flights." I didn't... |
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Forum: Projects
10-15-2012, 09:28 PM
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Replies: 32
Views: 1,394
Posted By
Mark II
Swoopy fins are a classic design element in space...Swoopy fins are a classic design element in space travel art from the pre-Sputnik era. This looks interesting, Don! |
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Forum: Ask the Doctor
10-15-2012, 09:18 PM
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Replies: 12
Views: 726
Posted By
Mark II
Or less, especially if you hollowed out the nose...Or less, especially if you hollowed out the nose cone, which was a common technique back then. Once a Streak that had been prepped that way had ejected its motor it truly was featherlight, or at... |
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Forum: Ask the Doctor
10-15-2012, 03:09 AM
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Replies: 12
Views: 726
Posted By
Mark II
...:D:D:D https://lh5.googleusercontent.com/-DMqy7RlQi1g/UHvEV8IbFFI/AAAAAAAABtg/duDuhPL1cUs/s634/Estes+Astron+Streak.JPG |
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Forum: Projects
10-15-2012, 03:02 AM
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Replies: 10
Views: 570
Posted By
Mark II
The Astron Sprite tumble recovers nicely, just...The Astron Sprite tumble recovers nicely, just the way it is supposed to. At least mine did. It may help to bend the little piece at the end of the hook up a little so that it is at less than 90... |
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Forum: Mission Control
10-10-2012, 01:10 AM
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Replies: 45
Views: 1,596
Posted By
Mark II
In Naples, NY, which is in the middle of the...In Naples, NY, which is in the middle of the Finger Lakes region of upstate New York, the fire hydrants are all painted grape purple... |
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Forum: Mission Control
10-10-2012, 12:52 AM
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Replies: 45
Views: 1,596
Posted By
Mark II
Manhole or ... escape hatch? :confused:...Manhole or ... escape hatch? :confused: Passageway into another world? :eek: . http://upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Lost_main_title.svg/250px-Lost_main_title.svg.png |
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Forum: Scale & Sport Scale Rocketry
10-10-2012, 12:23 AM
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Replies: 9
Views: 436
Posted By
Mark II
Well those all add up to about 0.14 oz. or 4...Well those all add up to about 0.14 oz. or 4 grams, which isn't much mass. Parachutes aren't very practical for micro rockets because for most of them, the term "featherlight" (as in featherlight... |
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Forum: Mission Control
10-09-2012, 09:42 PM
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Replies: 45
Views: 1,596
Posted By
Mark II
A-ha! You only think that the object is a fire...A-ha! You only think that the object is a fire hydrant. That's not a coincidence. ;) :D |
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Forum: Scale & Sport Scale Rocketry
10-09-2012, 09:33 PM
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Replies: 9
Views: 436
Posted By
Mark II
Parachutes are rarely used in Micromaxx-powered...Parachutes are rarely used in Micromaxx-powered rockets. It is difficult to come up with a canopy material that is thin enough to pack up and then fill properly when deployed, yet durable enough to... |
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Forum: Scale & Sport Scale Rocketry
10-09-2012, 09:18 PM
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Replies: 9
Views: 436
Posted By
Mark II
Only you could muster up something like this by...Only you could muster up something like this by "simply playing with pieces of wood on my lathe." Only you, Gordie. :chuckle: (For mere mortals like the rest of us this would have been a major,... |
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Forum: Projects
10-09-2012, 09:00 PM
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Replies: 39
Views: 1,038
Posted By
Mark II
It was a single wrap. I meticulously followed the...It was a single wrap. I meticulously followed the instructions given by Estes because I wanted to insure that the flight was a success. I was more than a little worried that I might lose my... |
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Forum: Projects
10-09-2012, 08:26 PM
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Replies: 39
Views: 1,038
Posted By
Mark II
I doubt that, because at ignition the Midget shot...I doubt that, because at ignition the Midget shot off the pad like any other small model rocket and climbed up to right about where one would expect it to stage. It was at that point (the staging... |
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Forum: Projects
10-08-2012, 11:48 PM
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Replies: 39
Views: 1,038
Posted By
Mark II
Yes, this occurred back in 1970. The motors were...Yes, this occurred back in 1970. The motors were purchased in 1969, so they were definitely old-style. |
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Forum: Mission Control
10-08-2012, 11:45 PM
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Replies: 45
Views: 1,596
Posted By
Mark II
Yeah, that's probably what I'll have to do. I'll...Yeah, that's probably what I'll have to do. I'll have to practice synchronizing the shutter click with the button push. (Or actually, a split second after the button push.) I imagine that one has to... |
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Forum: Projects
10-08-2012, 11:19 PM
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Replies: 39
Views: 1,038
Posted By
Mark II
No, it was definitely a booster motor. I thought...No, it was definitely a booster motor. I thought it was cool that I could look down and see the actual propellant grain instead of a paper cap. Remember that this was my first multi-stage launch and... |
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Forum: Projects
10-08-2012, 10:46 PM
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Replies: 39
Views: 1,038
Posted By
Mark II
My parents firmly believed that model rocketry...My parents firmly believed that model rocketry was borderline illegal and that it only appealed to people that were "disturbed." I tried to show then literature that Estes Industries had sent me but... |
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Forum: Projects
10-08-2012, 10:17 PM
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Replies: 39
Views: 1,038
Posted By
Mark II
What helped was that Semroc just happened to have...What helped was that Semroc just happened to have an upscaled BNC-50J in that size. :D The scale factor worked out so that LT-115 (a k a 29mm motor tube) was just the right size to replace the... |
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Forum: Projects
10-08-2012, 10:14 PM
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Replies: 39
Views: 1,038
Posted By
Mark II
No. In fact, I think that it confirmed some of...No. In fact, I think that it confirmed some of his fears. |
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Forum: Projects
10-08-2012, 10:12 PM
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Replies: 39
Views: 1,038
Posted By
Mark II
Eh, it was just something that I dealt with. I...Eh, it was just something that I dealt with. I thought that all or at least most parents had that attitude toward model rocketry. |
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Forum: Projects
10-08-2012, 10:10 PM
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Replies: 39
Views: 1,038
Posted By
Mark II
So what happened? What caused that strange...So what happened? What caused that strange flight? I have pondered this question over the past 42 years. For the longest time I thought that the booster motor must have just been underpowered. That... |
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Forum: Projects
10-08-2012, 09:50 PM
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Replies: 39
Views: 1,038
Posted By
Mark II
Interesting that you mentioned a low staging...Interesting that you mentioned a low staging altitude, Tim. My old Astron Midget, had the strangest flight profile in its only launch in 1970. Of course I don't remember the motors that I used in it... |
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