These sensors both have their strengths and weaknesses. While an accelerometer is great at determining apogee, it isn't very good at telling you how high that happens to be, and low-altitude determination for two-stage deployment is extremely difficult, if not practically impossible. A barometric sensor, on the other hand, is great at sensing altitude, OK for apogee detection, and lousy for things like burnout detection. Read this for more details.

Acceleration, in physics, corresponds to the force applied to something that causes it to change its position or speed. It is the force you feel when a car accelerates from a stop sign, pushing you back into the car seat (it's a horizontal force). Similarly, when an elevator starts moving, you feel more weight on your legs (it's a vertical force). When a roller coaster car makes a hairpin turn, the acceleration may push you to the side, or up or down.

You can test your flight computer by performing what we call a 'swing test'. This involves holding the computer with the 'nose' end pointing toward your shoulder, and swinging your arm around quickly. This test uses the angular acceleration caused by your arm's motion to simulate liftoff. The whole procedure is outline in our Bench Test document for the LC.

The Reva G-Wiz is a lightweight battery electric vehicle designed for low speed, congested urban conditions. Designed in California and manufactured by Indo/US joint venture Reva Electric Car Company, the G-Wiz is classified as a quadricycle (category L7e) under UK and European law. The primary criteria for a quadricycle such as the G-Wiz are a maximum weight of 400 kg (unladen weight without batteries) and a maximum power output of 15 kw.

The G-Wiz is a breakthrough product in the fight against climate change and pollution. Designed, marketed and used as a light, low speed urban commuter vehicle in London the G-Wiz has an exemplary safety record, with over 20 million customer miles driven and 4,000 years of ownership globally with no reported serious injuries. (source: RECC) The G-Wiz has received Full EU Type Approval, which means it meets all the automotive mechanical and electrical regulations for a quadricycle.

Although the G-Wiz is road legal for all roads in the UK, it is designed as a low speed urban runabout and commuter car and we do not recommend it is used on motorways and fast roads.

We offer a sale and purchase facility for ex-demo and second hand G-Wiz through the GoinGreen website. The price of these is dependent upon the age, condition and mileage of the car, although they are in short supply. But it's a great opportunity to pick up a bargain.

We can help you find a buyer quickly via our website and our private waiting list. We charge a fee of 10% of the sale price of your G-Wiz for this service. We also guarantee the G-Wiz is in good condition for the new owner via a Warranty approval Certificate. This is an examination that will give the car a clean bill of health and will enable the warranty to be passed over. The cost is just ?149 plus VAT, plus any additional work or parts required.

All G-Wiz Flight Computers use an acceleration sensor to determine apogee. Mach transition causes shock waves in the air, which can confuse some flight computers that rely on Barometric sensors for Apogee detection. Some of these have special code that tries to avoid confusion, and others provide a 'mach lockout' mechanism, usually timer based.

A customer can always cancel an order subject to the terms and conditions of the contract. Orders for dealer-specified vehicles may be cancelled prior to registration of the vehicle. Orders for customer-specified vehicles (built to order) may be cancelled at the discretion of GoinGreen. Deposits are non-refundable. Full terms and conditions of purchase available online and by request.

Yes. We perform a full drive-test and battery discharge of your existing vehicle as part of the valuation, which takes around 48 hours. This extended process is to ensure the quality of the vehicle being sold to future owners and costs ?149 plus VAT when selling via the GoinGreen website.

The Surveyor 4a can be equipped with a Barometric Pressure option that will allow you to determine the BP at your specific site. However, if you need to determine the BP without using the Surveyor or another portable BP measurement instrument, you can contact the local airport and get the current Barometric pressure in mm/Hg.

Neither the Euro NCAP test nor the Dept of Transport UNECE Regulation 94 test are required or recommended under the European regulation for quadricycles. Both tests are designed for M1 vehicles, primarily cars capable of speeds in excess of 100 mph and not low speed urban vehicles. Like all vehicle manufacturers RECC is however constantly reviewing safety features and innovation relative to usage. Many of these innovations were introduced to reduce injuries in high speed collisions.

Acceleration is defined as how quickly an object changes its velocity; that is, the change of velocity divided by the change of time (the difference in time over which the velocity changed). There are three methods of acceleration: speeding up (accelerating), slowing down (decelerating), and turning (changing direction).

WiZ or Wireless Internet Zone is a new and exciting broadband Internet service from GlobeQUEST. WiZ uses the IEEE 802.11 or Wi-Fi wireless networking standard. WiZ lets you connect to the Internet at broadband speeds using a Wi-Fi enabled laptop or PDA. Look for our WiZ logo at your favorite places and hangouts and get wirelessly connected fast!

There really isn't a "fixed" 0g position. The 0g position is continuously recalculated during the pre launch phase. If you've entered setup mode directly after powerup, the 0g position is just an arbitrary value, which may or may not correspond to any position between vertical and horizontal for your particular AFC-877. You can see how this works by allowing the AFC-877 to enter pre launch mode, and then returning to setup mode by pressing the three pushbuttons in sequence from left to right.

This is basically air pressure created by the Earth's atmosphere. Gravity pushes the layers of air down to the Earth's surface. This push is called air pressure. Like all fluids (gases and liquids), the air exerts a pressure on everything within and around it, although we are not aware of it. Pressure is a force, or weight, exerted on a surface per unit area. To find out a bit more check out this web page.