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Search: Posts Made By: CPMcGraw
Forum: Designer's Studio 10-24-2017, 05:48 PM
Replies: 4
Views: 5,547
Posted By CPMcGraw
First post I've made in quite a long time! Yes,...

First post I've made in quite a long time! Yes, I'm still alive...

And good to see Mr. TZ still kicking, too. And still doodling with rockets and RockSim. At least one of us is, anyway. I've just...
Forum: Scale & Sport Scale Rocketry 03-03-2017, 07:14 PM
Replies: 20
Views: 1,493
Posted By CPMcGraw
3D printing would have been a big help back when...

3D printing would have been a big help back when I was doing one of the A7 40th builds. I made "an attempt" to scratch a good set of pieces in plastic for one hold-down, using photos of the rocket...
Forum: FreeForAll 09-05-2016, 05:46 PM
Replies: 28
Views: 1,768
Posted By CPMcGraw
Here's a decent explanation of the event...

Here's a decent explanation of the event sequence, narrated by Scott Manley: LINKY (https://www.youtube.com/watch?v=Ye0EOENUw0c)
Forum: FreeForAll 09-04-2016, 08:56 AM
Replies: 28
Views: 1,768
Posted By CPMcGraw
Elon mentioned this in one of his later tweets....

Elon mentioned this in one of his later tweets. He said it was more like a burn than an explosion. I think I understand what he's saying. When you look at the video, the initiator of the event...
Forum: FreeForAll 09-01-2016, 02:30 PM
Replies: 28
Views: 1,768
Posted By CPMcGraw
UPDATE: VIDEO OF EXPLOSION...

UPDATE:



VIDEO OF EXPLOSION (http://www.theverge.com/2016/9/1/12754614/spacex-falcon-9-rocket-explosion-video-watch)

Based on this video, SLC-40 will be out of commission for some time. The...
Forum: FreeForAll 09-01-2016, 12:25 PM
Replies: 28
Views: 1,768
Posted By CPMcGraw
The story up on Space.com, written by Tariq...

The story up on Space.com, written by Tariq Malik, was updated with some comments by SpaceX officials that do suggest the issue may have been with the pad and not the rocket. All of this is early...
Forum: FreeForAll 09-01-2016, 11:57 AM
Replies: 28
Views: 1,768
Posted By CPMcGraw
OK, I've just watched several (aftermath) videos...

OK, I've just watched several (aftermath) videos from various NASA cameras. What AP thought was the rocket is just the strongback. The rocket was gone. I wonder if anyone caught the incident on video...
Forum: FreeForAll 09-01-2016, 11:46 AM
Replies: 28
Views: 1,768
Posted By CPMcGraw
This is an interesting quote from AP: If this...

This is an interesting quote from AP:



If this is true, and not just a bad view of a damaged strongback, then it might suggest ground equipment failed. The rocket may have simply folded from the...
Forum: FreeForAll 03-15-2016, 05:23 PM
Replies: 5
Views: 422
Posted By CPMcGraw
Pi r round, cornbread r square! (Cornbread r...

Pi r round, cornbread r square!

(Cornbread r round, too...)
Forum: RockSim Asylum 03-11-2016, 05:27 PM
Replies: 2
Views: 3,191
Posted By CPMcGraw
The last few versions of RS changed the way it...

The last few versions of RS changed the way it recognizes a 'legal copy'. It just takes an email (that's how I did mine) to have them confirm your ownership, and they'll send you an updated license...
Forum: FreeForAll 12-22-2015, 01:35 AM
Replies: 5
Views: 351
Posted By CPMcGraw
And what a complete success it was. too! I must...

And what a complete success it was. too! I must admit I was shouting right along with the SpaceX folks. Wish their camera views of the booster's return and touchdown had been better...
Forum: FreeForAll 12-22-2015, 01:12 AM
Replies: 9
Views: 336
Posted By CPMcGraw
Check out these sequences, especially the...

Check out these sequences, especially the post-landing video after the crew got out to it.

LINKY-DO (http://gizmodo.com/these-are-the-most-bad-ass-photos-from-the-spacex-rocke-1749223550)
Forum: FreeForAll 11-04-2015, 12:12 AM
Replies: 12
Views: 814
Posted By CPMcGraw
NASASpaceFlight had this paragraph in their...

NASASpaceFlight had this paragraph in their comments on the failure:



The rocket was supposed to spin during the first booster burn, but I think it exceeded the rotation limit. The spin seemed to...
Forum: FreeForAll 11-04-2015, 12:03 AM
Replies: 12
Views: 814
Posted By CPMcGraw
I had another thought on it. There didn't appear...

I had another thought on it. There didn't appear to be a large corkscrewing behavior in the early part of the powered flight, but it became more pronounced as the flight progressed. This might mean...
Forum: FreeForAll 11-03-2015, 11:50 PM
Replies: 12
Views: 814
Posted By CPMcGraw
Yeah, that's the other video I posted...

Yeah, that's the other video I posted about.

Here it is a full hour after the fact, and the AF is just now confirming the loss of the vehicle. You'd almost think this was the old USSR the way they...
Forum: FreeForAll 11-03-2015, 11:36 PM
Replies: 12
Views: 814
Posted By CPMcGraw
A bit more of what was in the videos... The...

A bit more of what was in the videos...

The ground tracking cameras showed only the exhaust plume, which steadily rose without any immediate indication of trouble. However, the video feed from the...
Forum: FreeForAll 11-03-2015, 10:54 PM
Replies: 12
Views: 814
Posted By CPMcGraw
Looks like SS did a "Kerbal" right off...

Looks like SS did a "Kerbal" right off the rail. It started a high-speed rotation that never recovered. The vehicle appeared to begin tumbling just before burnout of the booster (or right at burnout)...
Forum: FreeForAll 09-25-2015, 09:59 PM
Replies: 2
Views: 622
Posted By CPMcGraw
I like those holding jigs, they look nicely done...

I like those holding jigs, they look nicely done in the photos. Wish they had been around 30-40 years ago when I was heavily in my "plastics" period. Still got a few in the closet waiting for "some...
Forum: Scale & Sport Scale Rocketry 09-06-2015, 11:20 AM
Replies: 122
Views: 7,758
Posted By CPMcGraw
Take a look in the Model Railroad section of the...

Take a look in the Model Railroad section of the LHS, and locate some brass wire. That would be about the right scale for that shaped charge on the tanks. These wires come in packs like the plastic...
Forum: In the Wild 09-05-2015, 11:12 AM
Replies: 11
Views: 9,212
Posted By CPMcGraw
Or, "Loosing one is a good excuse to build...

Or, "Loosing one is a good excuse to build another!"

You did a good job in the build. Aside from the motor issues, it looks like it would have flown well. If you decide to try it again, please post...
Forum: Building Techniques 09-02-2015, 11:01 AM
Replies: 5
Views: 1,309
Posted By CPMcGraw
Be sure to read the chapter on Staging in the...

Be sure to read the chapter on Staging in the Handbook. G. Harry describes the mechanism of engine-to-engine staging rather well, and explains what needs to occur in some detail. The simple answer is...
Forum: In the Wild 08-31-2015, 05:29 PM
Replies: 11
Views: 9,212
Posted By CPMcGraw
Yeah, turning into a land shark would rip fins...

Yeah, turning into a land shark would rip fins off. Just hoping for the best...
Forum: In the Wild 08-31-2015, 10:55 AM
Replies: 11
Views: 9,212
Posted By CPMcGraw
Ouch! I won't ask how bad the booster looks now,...

Ouch!

I won't ask how bad the booster looks now, with that obvious burn hole in the side...

What about the upper stage? It staged just off the rod it seems, so did it receive much damage on impact?...
Forum: Projects 08-27-2015, 08:42 PM
Replies: 7
Views: 728
Posted By CPMcGraw
Ahh, understood. So, set that one aside and build...

Ahh, understood. So, set that one aside and build a second one. :D

Also understand the arthritis part. Painfully so...
Forum: Scale & Sport Scale Rocketry 08-27-2015, 10:45 AM
Replies: 122
Views: 7,758
Posted By CPMcGraw
I've had several of these over the years, as I do...

I've had several of these over the years, as I do a lot of model airplanes. It's from Master Airscrew, and should be a staple of any well-stocked LHS that still carries scratch-building supplies....
Showing results 1 to 25 of 500

 
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