Over the past weekend, I transferred the RocketReviews.com website to a new server. One of the hard drives on the old server began showing signs of failing, so I decided to move RocketReviews.com and the other sites I host to the new server.
The new server is very similar to the one used before. It has an Intel Xeon Quadcore processor and 4GB of memory. It’s running RedHat Linux and is located in one of Softlayer’s data centers in Dallas, Texas, with direct connections to the largest and fastest internet backbones.
The only real difference between the new server and the old is that the new server has three 500GB hard drives in a RAID 5 configuration while the old server had just two 500GB drives configured individually. The RAID system provides protection in case a drive fails. If one of the drives fails, a new one can replace it without turning the system off. RAID 5 stores information on each drive that is used to restore another drive if the other drive is replaced. Therefore, the three 500GB drives in the new server provide the same 1TB of storage space that the two drives did in the old server.
The transfer is complete and went smoothly, so you should see no difference when you visit the web site.
Earlier this year, Carl McLawhorn passed away leaving his wife, Sheryl, and son Bruce to run Semroc. Now, the family is facing more emotional trauma as Bruce is in the hospital. Admitted suffering from an intense form of the flu and pneumonia, his kidneys stopped functioning forcing him to be placed on dialysis. Bruce’s long-term outlook is good, but he has a long road to recovery and the family is already experiencing financial hardship.
Members of the rocketry community are coming together to support Bruce, Sheryl and Semroc by sending donations by PayPal to email@example.com.
Jeffery Smith is auctioning a built and finished FlisKits Nomad with the proceeds going to support Bruce and his family.
Black Friday and Cyber Monday are fast approaching. The shopping (and, coincidentally, the holiday) season is upon us!
Below is a list of Holiday Sales offered by rocketry vendors this year. This list will be updated as new information becomes available. Please leave a comment if you wish to add or update any information. Thanks!
This weekend only, Friday, 29 November 2013 through Monday, 2 December, 2013, the first 40 TeleMega direct orders placed through the Altrus Metrum web store will receive a special $50 pre-order discount (regular $400, now $350).
During Archetype Rocketry’s Black Friday Weekend Sale you can purchase a Cable Cutter at the following discounts:
Friday (Nov 29) Single Packs – $20 Redundancy Packs – $30 Saturday and Sunday (Nov 30 – Dec 1) Single Packs – $22.50 Redundancy Packs – $35
With the purchase of any of Binder Design’s
Continue reading 2013 Holiday Rocketry Sales …
I’m aware that the RocketReviews.com web site has been performing slowly at times, but I’ve addressed the issues and the site is performing much better now.
If you found RocketReviews.com to be slow in the past, please visit the site now and let me know if you are still having problems. You can use the Contact Us link at the bottom of any page at RocketReviews.com to contact me.
For those interested in the details, a number of issues were causing the problems. These issues came together in a “perfect storm” a few days ago causing the site to be down for a few hours.
The main issue was that the database engine’s parameters were not tuned very well. It was using more memory than physically exists on the server. Combined with some inefficiencies in the way the database was being used, this caused a high load on the entire server. A monitoring program rebooted
Continue reading Performance Improvements …
A new Android app which measures diameters may be useful to rocketry hobbyists. ON Diameter is a free app which measures the diameter of an object such as a model rocket body tube.
You place the object to be measured anywhere on your Android device’s screen then move three cross points to align with the object’s boundary. The object’s diameter and area will be shown on the screen. You can toggle the units to select inches or millimeters.
The screen shots above show the app being used to measure several items as well as the screens used to calibrate your device for accurate measurements.
The ON Diameter app is available from the Google Play store.
Affected: Estes Red Rider #2484 and Helios #2487 Almost Ready To Fly Model Rockets and Their Packaging
Consumers should stop using these products immediately. Estes-Cox has notified the U.S. Consumer Product Safety Commission of this recall. It is illegal to resell or attempt to resell a recalled consumer product.
Names of Products: Red Rider and Helios Almost Ready-to-Fly Model Rockets
Units: Red Rider 6,890 Helios 4,252
Manufacturer: Estes-Cox Corp. of Penrose, Colo.
Hazard: When flown with the new booster accessories being marketed for these rockets, the rocket’s flight can become unstable causing the rocket to change direction while under thrust, posing a risk of impact injury to people nearby.
Incidents/Injuries: Estes-Cox has received no reports of incidents or injuries.
Description: This recall involves the Red Rider Almost Ready-to-Fly model rocket and the Helios Almost Ready-to-Fly model rocket. The Red Rider rocket (item #2484) is 18.6 inches (47.2 cm) long, 1.33 inches (34 mm) in diameter
Continue reading Estes-Cox Recalls Two Model Rockets Due to Risk of Impact Injury …
BP Hobbies has some Quest products, including motors and a few OOP kits, at closeout prices.
Quest is selling their Aerospace One kit at 50% off the list price on their web site.
Look for more designs to be indexed in the Rocksim Library and the OpenRocket Libray. I updated the “spider” which searches the internet for designs. It now also looks inside zip archive files. This has already added dozens of designs to the indexes.
I made the “thumbnails” displayed in Photo Albums larger. The pages will take longer to display, but the photos look much better.
I added a “Search” tab to the Rocketry Plans and Instructions index. This will make it easier for you to find plans or instructions without having to search the entire site.
RCS Information Release
July 18, 2013 RCS, Inc. and Quest Aerospace, Inc. Announce Merger
RCS Rocket Motor Components (RCS), Inc. President Gary C. Rosenfield announced today that the two companies have successfully completed a corporate merger. Quest Aerospace, Inc. will be closing its Colorado facility and moving its operations to the RCS facility in Cedar City, Utah. Rosenfield will remain as RCS President, and Bill Stine current President of Quest will become Vice President of RCS.
“The two companies have nearly identical manufacturing operations and the merging of the two operations into one is a major cost savings for us”, said Quest Aerospace President Bill Stine.
Quest is widely known as a leader in the beginner and education markets for model rockets. Its kit designs and rocket motors are geared for the entry-level rocketeer. The RCS/AeroTech line of mid to high-power products starts right where the Quest line leaves off. “We will be the
Continue reading RCS, Inc. (Aerotech) and Quest Aerospace, Inc. Announce Merger …
I just posted a blog entry at PayloadBay.com about the University High School Space Shuttle. The space shuttle model stood about five-foot tall and flew on an I motor. Unlike every other flying space shuttle model, it did not have any added fins for stability. At apogee, the Solid Rocket Boosters separated and the orbiter began gliding back to earth under radio control. The rocket flew several times including a flight at Epcot.
Could it be the coolest hobby rocket that ever flew? Maybe.
Another contender would have to be Steve Eve’s Saturn V. Steve’s 1/10 scale Saturn V stood about 40 feet tall. It flew on a cluster of motors producing more than 40,000 pounds of thrust. It’s one, and only, flight attracted a crowd numbering about 5000. Based on the number of videos posted online, it was probably to most photographed hobby rocket launch of all time.
Then there’s the CSXT
Continue reading The Coolest Hobby Rocket of All Time …