I started building a Parkzone Stryker last night. So far I’ve spent $25 on the fuselage and elevons, and this is what it looks like:
This airplane has been very easy to put together. The elevons clip on with no glue and are pre-hinged. The battery compartment is very spacious, and the servo holes are pre-cut. This took me less than an hour to do.
Here’s what I have left:
Install the vertical fins.
Mount a motor (considering the Tower Pro 2408-21, reverse mounted on the stock motor mount).
I have been struggling with this problem for a number of months. Here are the symptoms:
Email sent to Hotmail via my SMTP server and Thunderbird never arrives, but I get no bounce message.
Strangely, email sent to Hotmail via my SMTP server and the “mail” command arrives perfectly.
Email sent as a reply to a Hotmail message using Thunderbird arrives perfectly.
I played with SPF and lots of other Postfix and DNS settings hoping to fix things, but the problem persisted. I gained some hope when I read that this site was having the same problem.
I’m stuck scratching my head since it’s obviously not a server problem. I just can’t imagine what header Thunderbird is adding that Hotmail doesn’t like. I started this thread (continued here) on the Provo Linux Users Group hoping to get some answers. No luck yet.
This gentleman proposes a thought-provoking argument in favor of spending resources to stop global warming.
I believe I may have found the hole in his argument. The hole is this:
It starts with one assumption: Resources are limited. Now consider dozens of problems with 2×2 grids like the one in this video, and apply the same logic to each problem. You get one grid for global warming, one for the war on drugs, one for terrorism, one for world hunger, etc. Using this gentleman’s logic, we would choose to spend resources on every single problem, and we are left unable to solve any of them fully.
Global warming, whether real or not, is one of many problems facing modern humanity, many of which could arguably lead to equally disastrous outcomes. Can we solve all of them? No. Therefore, we have to choose which problems to solve not based on the magnitude of their worst-case scenario, but rather based on a combination of both their magnitude and their likelihood of actually occurring.
The fallacy is this: one should not spend resources on a problem based on the magnitude of its outcome without considering the likelihood of the outcome actually occurring. This logic would lead me to believe in moving the entire human race to a different solar system because our sun is going to die.
I thought there was such a thing as etiquette among experienced R/C pilots. Today I was provided with a poignant counter-example.
I was flying my newly rebuilt GWS Formosa, and was having a great time. After two successful landings and several great maneuvers, I was in the air for the third time. I was still in the process of trimming and working out a problem with thrust angle when a man showed up at the field ready to fly. He braggingly announced himself as an experienced pilot and told me (with my plane still in the air) that he was about to go stand on my runway to launch his plane. I asked him to please wait while I land my plane. He proceeded toward my runway anyway.
At this point panic started to set in as I setup for a landing, hoping he wouldn’t arrive at my runway before my plane did. He was lucky, because as I pulled my plane around for its final approach, I forgot about my thrust angle problem and nosed in to the ground hard, about 100 feet short of my anticipated landing spot. This of course crushed the plane’s nose and broke the prop. This time I’m not sure if I can rebuild without buying a new airframe.
So here’s today’s R/C pilot etiquette rule: When someone is flying, don’t walk in front of them. Seems like a no-brainer to me, but apparently that’s news to some, even “experienced pilots”.
I was able to finally get my GWS Formosa back in the air today. This time I was smart and setup dual rates on my ailerons. I have them set to only move 40% of full when I put the “Ail D/R” switch at 0 on my radio. That saved my bacon! The plane is a lot easier to fly like that. This flight, I noticed that the plane wanted to roll left hard. This is probably because I didn’t dial any thrust offset into my motor when I re-mounted it. I tried trimming in the air, but decided to land and do the trimming on the ground because I could see that it was going to be more than a few clicks. On the landing I came in a bit too bumpy and broke my prop. That’s when I realized I had forgotten to bring any spares. Oh well, the next flight will have to wait a day! I’ll hopefully have some good flight video next time.
