Make sure batteries are ready to use when you need most is the job of an A / C or D / C charger. Some of the models I recommend here offer both energy source for the convenience options and the ability to recharge in the area where the action is.
The GWS MC-2002 charger is controlled by microprocessor with Delta automatic detection peak for Ni-Cd and Ni-MH batteries. Range input voltage: DC 9.0 ~ 15.0 V Current load: 0.25 ~ 6.00A continues types of batteries: 50 ~ mAh 3000 mAh Ni-Cd or Ni-MH Cells: 4 ~ 12 cells Protection: Results reverse polarity and the short time load: 90 minutes with safety cutoff Lecture: large-scale current Meter Cooling: sturdy case with the Heavy Duty Heat Sink.From high-quality, easy to use and very affordable at around $ 45, you really can not go wrong!
When you're ready to lithium in your models, you'll need to buy a battery charger RC dedicated to lithium batteries because the technology is very different from NiMH and NiCd batteries.
And please do not make the mistake of trying to load your lithiums with a standard charger because there is the very real danger of an explosion and fire!
What I think is one of the best values in the battery charger RC area is now the ProPeak Prodigy II.
Tuesday, September 2, 2008
Thursday, August 28, 2008
Electric RC helicopters
In recent years, electric rc helicopters have seriously fallen in price, become widely available and have become much easier to fly through greater stability, making them the ultimate "must have" control model radio.
As a result, they now constitute the fastest growing sector of the radio control hobbies flight, and models displayed on this page are fairly typical examples helicopters that were responsible for this huge explosion.
One type of electric rc helicopter which was so popular with newcomers is the fixed-pitch (FP) 4 channel model, as the Walkera Dragonfly 4, shown below. There are several of these helicopters available from different manufacturers, all based on the same basic design (the Venom Night Ranger and EF Sabre, for example).
Sold ready to fly (RTF), the PC 4 channels electric rc helicopters are ideal for beginners. They are still a challenge to begin with, but are a good, affordable introduction to multi-channel model helicopter flight.
Also, spare parts for this type of helicopter are widely available and cheap. Indeed, much of the helicopter learning curve is the purchase of spare parts, after those who are not less good landings!
The Walkera Dragonfly 4 has been and continues to be a very popular seller. I myself one, and you can read about this in more detail if these pages.
Wednesday, August 27, 2008
RC Crawler
RC crawlers, they can be scale vehicles with incredible details, semi-scale trucks with competition performance in a scale-appearance package, and all out competition rigs that may look gnarly, but seem able to crawl nearly upside down.
If youre a slash and burn kind of driver, you may have trouble with a remote control rock crawler, where driving finesse ranks high and speed is measured in fractions. To get a good start in this addictive RC action, you can purchase a RTR 4x4 RC truck from any hobby store, retailer or internet source advertising them.
If you wonder what the difference is between the monster-truck-4x4 youve brought home, and an RC crawler, the answer is fairly straightforward. RC rock crawlers:
Have full-time 4 wheel drive
Have locked differentials
Have a stretched wheelbase, usually 12-12.5 inches
Have large tires with foam inserts, often trimmed to rock-gripping shapes
Have a very low center of gravity (CG)
If you want to dive straight into building your own remote control rock crawler, there are excellent kits available, such as the Axial AX10 Scorpion rock crawler kit. These kits give a newcomer a head start and lets you get out and crawling after just a few hours of building. Kits normally include:
Care Your Health problem
The authors of this new study did not specifically look at the health consequences of their lack of insurance or the lack of access to proper medical care, but it is reasonable to assume that these two factors could lead to many medical complications. Dr. Andrew Wilput, an instructor in medicine at the University of Washington in Seattle and a fellow at Harvard Medical School while the study was being conducted, said,This is something that is very true in my clinical experience. The uninsured can't get in to see the doctor, they miss medications, their blood pressure is out of control and, really, you see devastating consequences."
Another expert agreed that the lack of insurance along with someone who has a chronic illness could be a combination that is potentially lethal. Dr. Oliver Fein, the president-elect of Physicians for a National Health Program and a professor of clinical medicine and public health at Weill Cornell Medical College of Cornell University in New York City, said, "These people are going to end up with complications of their illnesses prematurely. They will be disabled early. They will probably die younger. It is a major public health disaster....Longer-term, there will be expensive admissions to hospitals, usually through the emergency department, due to diabetes out of control and congestive heart failure because of hypertension."
The number of Americans that do not have insurance is approximately 47 million in 2006, which is up from 31 million in the year 1987 is plentiful information. However, what has been less clear in the study is how many individuals suffer from a chronic illness, although some, including the policymakers, have suggest that many of the people are healthy.
The data came from interviews with almost 12,500 people that were between the ages of 18 and 64 who had participated in the National Health and Nutritional Survey. From this information, the authors concluded that approximately 11.4 million of the working-age Americans with at least one out of seven chronic medical conditions did not have any health insurance.
These people included 15.5 percent out of the 38.2 million with hypertension, 7.8 million with cardiovascular disease, 16.6 million out of the 8.5 million with diabetes. Some other conditions that were examined include high cholesterol, previous diagnosis of cancer, asthma, or chronic obstructive pulmonary disease.
Wilper said that they found some pretty big differences when they compared uninsured people with on of these seven conditions with people who were insured with one of the conditions. Approximately 26 percent of the people who did not have insurance reported no standard site of care, versus the 6.2 percent of the people who did have insurance. More than 22 percent of the people who were uninsured reported that they had not been to see a physician within the last year and 7.1 of those uninsured with a chronic illness report that the emergency room was their main site for medical care. The 6.2 percent of the people with insurance did report that they had seen a physician within the last year and only 1.1 percent of those went to the emergency room for medical care.
Wilper stated that the conditions listed are ones that they can take care of in a clinic. Physicians know that they can prevent complications that are disabling or catastrophic if they are able to manage the conditions. Greg Scandlen, the founder and the director of Consumers for Health Care Choices, an advocacy group for health-care consumers that is non-profit, said that none of the findings are surprising. It is interesting that we are finding that chronic conditions are shown to be more common among the people with insurance than ones without, although, that is not surprising either. The people that suffer from a chronic condition are more likely to place a higher value on their insurance coverage and they will work harder to get it and keep it. Scandlen added, "But having insurance is not likely to prove to be a panacea for these folks....People with chronic conditions who are insured are not doing so well, either. We do not do a very good job of delivering chronic care in this country for anyone."
Tuesday, August 26, 2008
micro electric remote controlled helicopter
A micro electric remote controlled helicopter is a fully 3D-capable machine in all respects and although they are not easy to fly due to being susceptible to winds with their light weight, they can achieve flying characteristics of the larger scale rc model helicopters. Some of the more expensive micros share the same flight characteristics as the larger units such as cyclic, pitch, rudder and motor speed and thus can fly inverted, do loops, stall turns, auto-rotations, etc.
Perfect for both beginners and for owners of the larger scale helis, a micro remote controlled helicopter can certainly fill the bill. If you've ever owned a larger scale RC helicopter, you will definitly enjoy the fact that you can finally fly your model regardless of weather conditions, day or night in the comfort of your own home.
Just go to the backyard or to your two car garage, slide in a fresh battery pack and go at it. Your guests will be very impressed. Micro helis can be made to fit in a small case with the transmitter, charger and all the necessary gear which makes them ideal for carrying around to a friend's house or to a local park.
To sum it all up, a micro electric remote controlled helicopter is great for beginners for the following reasons:
* It's lightweight so the damage in a crash is minimal compared to larger RC Helis
* You will be able to practice all the time in your backyard or garage
* The cost of replacement parts are fairly cheap compared to larger scale RC model helicopters
* They are less dangerous since the rotor blades are light (Still need to keep a good distance)
* Installation and configuration is less complex with the Fixed Pitch helicopter remote setups
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