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"So You Can Fly Another Day ™ "
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Rite-Angle CompanionTM
Frequently Asked Questions

Why do I use a vane?: The next time you are getting on an airliner, look in the general area below the Captain's and First Officer's windows, about in the middle of the fuselage. Notice a vane? I had a vane in my nearly 19 years flying for a major airline, and in business jets several years before that. If it was reliable enough for me when I was carrying over 150 passengers plus my crew it is reliable enough for our homebuilts and our valued customers. All of our systems use the same type of vane and it also allows you to wax your aircraft without disabling your Angle of Attack by clogging your pressure port!

Wide Angle LEDs: Wide angle LEDs are standard equipment. These wide angle LEDs are also beneficial as a single display in side-by-side aircraft. Both pilots will be able to readily see the display. Auto dimming is also a standard feature and adjusts the brightness to the level required from total darkness to full direct sun. For your individual preference we have manual dimming so you can set the intensity you desire.
The RiteAngle™ Companion LEDs display the angle you select, not a computer derived theoretical angle or an angle determined by the system manufacturer. Each LED is independently set to the exact angle you wish it to illuminate. This eliminates the need for an excessively large display. When correctly installed and calibrated, higher angle of attacks are indicated with more illuminated LEDs than lower angle of attacks.

If you don’t expect to fly at night and have an open cockpit aircraft, Ultra-Bright LED’s are still available on special order. These LEDs are easily visible. in full direct sunlight! While they do cost ten times as much as standard bright LEDs, usage insures that where the display is in full sunlight, such as in open cockpit aircraft with no glare-shield, they will not "wash out". These LED’s do not dim consistently so are now available on special request only.

EM aviation has been using LED displays since our first production system, designed in 1993. The advantages are reliability, low weight and low power consumption. LED's are now used in nearly all products where formerly an incandescent lamp was used.

Display: The display is mounted in the instrument panel or on glare shield. These LEDs also are excellent for a "poor mans heads up" display if mounted in the glareshield to reflect in the windscreen. See SeaRey photos. The space required is .625" wide and 2.125" high. The system will support two displays, if required for a tandem aircraft. Each display independently dims as necessary.

Calibration: The RiteAngle™ Companion employs the same proven easy-to-use "push button" calibration system as the former Rite Angle III system. No maneuvers that you didn’t do before solo are required for system calibration!

Flap correction: Flap correction is now standard. This enhancement automatically corrects for up to six different positions of flaps. This option includes the enhanced circuitry, software programming, and an easy-to-install potentiometer type sensor which is positioned by a mechanical connection (provided) to a flap torque tube or actuating arm. Weight under 4oz. less wiring.

Flap Position Indicator (optional): The optional flap position indicator is the same size as the AOA display. The space required is .625" wide and 2.125" high. Anytime you have a flap position LED illuminated your system has power to it. This display also contains the low aux. battery warning LED.

Back-up System: For a entirely separate back-up AOA system, add a small 12V Gel Cell battery or 8 AA batteries. The Companion has an automatic switch that switches to the back up battery in case of aircraft electrical system failures if wired according to instructions.

Safety and Redundancy: The RiteAngle™ Companion is completely separate from the pitot static system. If a break in the pitot or static system line occurs, it will not affect our system, nor will a failure in the RiteAngle™ affect the pitot/static system as in one competitor's system costing nearly three times as much!

Lower Cost Than Our Competitors!
Highest Quality!
FAA Approved Version Available Soon!

The RiteAngle™ III used electronics not available during design of the initial Basic, I, Ia, II, and IIa systems. Integration of even newer technology and the enhanced design of the RiteAngle™ Companion & the FAA Certified RiteAngle™ Elite improves the III and is significant enough to make it a separate version. Conforming to the FAA failure analysis criteria has also largely eliminated the possibility of component failure. Therefore we have extended our warranty way beyond what our competition offers. For complete details see Warranty section.

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Comments

  • "Actually it is so darn easy to use that I had to laugh out loud, thinking to myself that somebody really did their homework here."
  • "With this installation you will not have to consult the airspeed indicator on final for any land or water landing. It has been used and abused by me till I am very sure of it's performance and enhancement of my own safety."
  • "We all know how busy the cockpit can be at times, but with the AOA I can instantly see my stall magin (with very little brain energy necessary) regardless of aircraft attitude."

Our adress

EM aviation, LLC
13411 NE Prairie Rd.
Brush Prairie, WA 98606 USA

Phone: 360-260-0772
Fax: 360-260-0772
E-Mail: RiteAngleAOA@aol.com