VirtualHUD: FAQ

Frequently Asked Questions

1) It uses lasers... isn't that dangerous in a plane?
No, the device contains several systems to track the propeller to prevent it from firing the laser when the propeller isn't in the field of view. It's similar to the WWI fighters that had the propeller interrupter on their guns to prevent them from shooting the propeller off, but it is all digital and works in reverse - that is, we want to hit the prop with the laser.

2) So, this must be certified by the FAA, right?
Actually, the answer is no, it doesn't have to be because it is a hand held device, not a built in flight instrument, but the FDA does have to certify it due to the laser emissions. The FDA classifies this as a Class II laser device. The safety features built into it are designed to prevent injuries to humans. In the future, if a certified plane manufacturer decides to equip their planes from the factory with a technology like this, then it will have to undergo FAA certification.

3) What happens if the propeller stops?
Well, first off, you have bigger problems to worry about. :-) However, the prototype unit is equipped with a small backup display that can be used like a mini-EFIS! In addition, because this is a hand held device and not a part of the aircraft, all your actual instruments will still be in place.

4) Is it safe?
Yes, it has several safety features built in, from redundant sensors to redundant displays. Every sensor has a back up mechanism that can get the pilot safely down... even in the event of a complete electrical or engine failure of the aircraft.

5) Has it flown?
Yes. Currently, there are three prototypes at various stages of development. The first prototype was used to demonstrate the projection system and propeller detection capabilites. It flew on several flights and was used primarly to gather data about propeller detection thresholds and speeds. The second prototype is being used to evaluate different wavelengths of laser light. The current thinking is to use a red 635nm laser for nighttime viewing and a 535nm laser for daytime viewing. The intensity of each laser will vary depending on lighting conditions, but will be automatically selected. Multiple color lasers are also being evaluated during this phase. The third prototype will be fully capable of navigation in night or daylight condition. It will be used to flush out the "look and feel" of the final production unit's display capabilities.

6) How much and when?
Well, that's still to be decided, but this instrument will be significantly less than any other Head Up Display on the market... where they typically cost in the neighborhood of a quarter of a million dollars, this will be in the mid thousands. We're currently engineering a production unit and should begin testing it soon, hopefully, we will go to market with a unit by next year.

7) Will you be at any airshows soon?
Yes. I will be attending both Sun-n-Fun and Oshkosh. Contact me for further details.
Contact Info: info@virtualhud.com