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Sep 24, 2013

What is a LPV Approach?

LPV

LPV Approach or Localizer Performance with Vertical Guidance Approach is a modern instrument approach procedure that uses SBAS with GPS to attain the most precise position available today. A LPV approach can get a pilot down to a 200-250 feet decision altitude, making it possible for an aircraft to land at runways in very low visibility. Without SBAS and GPS capabilities, pilots flying in extremely poor visibility conditions might otherwise have to fly to an alternate airport.

Using LPV you can go automated down to 200-300 ft or about ½ nm from the touch down point.


SBAS

A satellite-based augmentation system (SBAS) is a system that supports wide-area or regional augmentation through the use of additional satellite-broadcast messages. Such systems are commonly composed of multiple ground stations, located at accurately-surveyed points. The ground stations take measurements of one or more of the GNSS satellites, the satellite signals, or other environmental factors which may impact the signal received by the users. Using these measurements, information messages are created and sent to one or more satellites for broadcast to the end users.

SBAS is usually automatic in modern GPS receivers and is automatically used if available (also outside aeronautical applications)!

The following Honeywell and Rockwell Collins videos are very informative about LPV.

Pilot Training Video: LPV

Cutter Aviation, Beechjet and Rockwell Collins LPV video.

See also:

Wikipedia - Performance-based navigation

GPS Approach Types and Needle Sensitivity

WAAS LPV Approach Reveals Expanding Helicopter Airway System

YouTube Video: Precision Instrument Approaches

YouTube Video: Instrument approach at Sion (Switzerland) explained

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Sep 3, 2013

Small Intel Desktop Boards without Fan (2013)

Here is a list of the latest small low cost desktop boards from Intel without fans:

Intel D410PT

(with integrated Atom 1x 1.66Ghz CPU) [FANLESS]


The D410PT as well as the D510MO offer passive cooling and hide on the one hand a -single Core Atom processor (D410) and on the other hand a Dual Core Atom processor (D510 – also used in numerous new netbooks) of the newest generation.

In the area of power consumption (~30 watts) the new mainboards range within the low, classic Intel Atom level. The major advantage of the new mainboard ist he possibility to utilize the 24 pin ATX jack, which makes the use of an additional P4 connector unnecessary.

As with the other mainboard generations, Intel again, focuses on the extension possibilities. Therefore, both mainboards offer a willingly utilized PCI slot, and the D510MO additionally offers a Mini PCIexpress socket and a LPT extension slot. With these possibilities up their sleeve, with minimum effort they offer variable fields of application.

Intel D425KT

(with integrated Atom 1x 1.8Ghz CPU) [FANLESS]

Intel® Desktop Board D425KT with integrated Intel® Atom™ processor D425 and the Intel® NM10 Express Chipset enables low-power consumption and reduces the package footprint by 70 percent. The board also features 10/100 integrated LAN and USB Solid State Drive (SSD) keep-out-zone design – an ideal combination for a diskless usage model.

With breakthrough low-power silicon, the Intel Desktop Board D425KT can also be used with a passive thermal solution based on the recommended boundary conditions.

While this desktop board is small in size, it delivers a powerful Internet experience for all audiences.

Intel D2500HN

(Intel Atom 2x 1.86Ghz CPU) [FANLESS]


- Dual-core Atom
- Passive thermal solution; 35mm z-height
- Legacy features for basic computing needs

Intel D2500CC-E

(Intel Atom 2x 1.86Ghz CPU, 2x LAN, 4x RS232) [FANLESS]


- Dual-core Atom
- DVI-I for full dual-independent display support
- 4 serial ports & headers for multiple peripherals
- Boards are suitable for other devices; ATM, Kiosk, POS, etc.

Intel D2550MUD2

(Intel Atom 2x 1.86Ghz CPU, TPM, DVI) [FANLESS] *new*


- Dual-core Atom with Hyper Threading
- DVI-I for full dual-independent display support
- 3 serial ports & headers for multiple peripherals
- Boards are suitable for other devices; ATM, Kiosk, POS, etc.

Intel D2700MUD

(Intel Atom 2x 2.13Ghz CPU, TPM, DVI) [FANLESS]


- Dual-core Atom with Hyper Threading
- DVI-I for full dual-independent display support
- 3 serial ports & headers for multiple peripherals
- Boards are suitable for other devices; ATM, Kiosk, POS, etc.

Intel D2700DC

(Intel Atom 2x 2.13Ghz CPU, HDMI) [FANLESS]


- Dual-core Atom with Hyper Threading
- 1080 High-Definition playback
- Cost competitive entry-level HTPC

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