Thanks, the GRT looks much better than G3X then, but has it got the possibility to program ANY descent angle (not just 3 degrees)? And can it use ANY waypoint rather than just official airports?
One example I can think of as to why some manufacturers don't allow it:
Pilot creates synthetic approach to his back yard strip intending to use it in VMC conditions only.
One day pilot returns home to find his field is IMC due to fog or other low layer.
Pilot decides to use his synthetic approach since he has used it 100 times in VMC conditions and all was well.
Pilot hits something hard on his approach and dies.
Family/Insurance sues the pants off of anyone associated with the event out to about the 10th degree.
Looks like a simple risk vs reward problem to me.....
Well, we've been doing this for some 9 years on our EFIS systems (Enigma, Voyager, Odyssey and all of the latest iEFIS flavours).
Are you seriously suggesting that if somebody wipes himself out using his own (or any supplied) approach guidance (regardless of IMC or VMC) he or his estate has grounds to sue ?
What possible argument would the estate use in court ?
How is this any different from following track and altitude down to a runway using a hand-held GPS ?
Sorry for chiming in here but I am intrigued.
Rainier
CEO MGL Avionics
Well, we've been doing this for some 9 years on our EFIS systems (Enigma, Voyager, Odyssey and all of the latest iEFIS flavours).
Are you seriously suggesting that if somebody wipes himself out using his own (or any supplied) approach guidance (regardless of IMC or VMC) he or his estate has grounds to sue ?
What possible argument would the estate use in court ?
How is this any different from following track and altitude down to a runway using a hand-held GPS ?
Sorry for chiming in here but I am intrigued.
Rainier
CEO MGL Avionics
Also, that's the a reason that on the Garmin non-precision LNAV+V approach that the GPS derived glide path is advisory only and the pilot is admonished to not descend below the published MDA until the runway environment is in sight as with any non-precision approach regardless of the glide path indication. The fact that the Garmin is generating a glide path will not give you obstacle clearance below the MDA unlike say an LPV approach where you can safely follow the glide path down to the decision altitude..
Hmm.
So if I make a hammer and somebody smashes his index finger with it then I am liable as I made the hammer.
Same thing ? No ?
You guys sure have a funny sense of right and wrong.
Yes, having been on the receiving end of some U.S. based patent infringement claims I understand your system somewhat. No sorry - "understand" is perhaps the wrong term.
Rainier
CEO MGL Avionics
Gun manufacturers here in the US get sued all the time for that reason. Bottom line is the US is a litigious society where the #1 rule is everyone else is to blame and # 2 is anyone with deep pockets will get sued.
That's not really true. Almost every state has passed laws that prohibit suing gun manufacturers, except for defects in manufacturing.
you'll have noticed that we continue to roll out new features and improvements in our free software updates, and that we do go out of our way to incorporate customer feedback as resources permit.
This kind of logic has won both aviation and non-aviation cases in the US. Just ask McDonald's about the lady who spilled hot coffee on her.
Happy Friday everyone,
Without commenting on the several topics of discussion going on in this thread, we just wanted to clarify that adding the capability for a G3X user to set up our VNAV feature to use a flight path angle instead of a vertical speed is in fact something we would like to investigate. If you've been following our products, you'll have noticed that we continue to roll out new features and improvements in our free software updates, and that we do go out of our way to incorporate customer feedback as resources permit.
Everybody have a great weekend, and fly safely...
- Matt
There's actually more to the infamous McDonald's coffee case. http://www.lectlaw.com/files/cur78.htm?PageSpeed=noscript
The plaintiff originally asked only for medical costs (to treat third-degree burns over 6% of her body) and lost wages; after going to trial she was awarded much more in punitive damages because McDonald's repeatedly shot itself in the foot on the stand and ticked off the jury. Effectively, they said "we knew the coffee was really hot and could cause severe burns, we didn't really tell the customers about it, we know we've had hundreds of people get serious burns from the coffee, but that's nothing, really." The eventual punitive damages came to something like a few hours' worth of coffee profits.
Happy Friday everyone,
Without commenting on the several topics of discussion going on in this thread, we just wanted to clarify that adding the capability for a G3X user to set up our VNAV feature to use a flight path angle instead of a vertical speed is in fact something we would like to investigate. If you've been following our products, you'll have noticed that we continue to roll out new features and improvements in our free software updates, and that we do go out of our way to incorporate customer feedback as resources permit.
Everybody have a great weekend, and fly safely...
- Matt
5) Dynon, MGL, GTN650/750 (not available AFAIK)
I don't think you have done your research quite accurately.
MGL has has this kind of function for 9 years now. The required data comes from the various sources (for example FAA database or Jeppesen). You can set any glide slope angle you like (normally 3 degrees but personally I prefer 4 degrees).
Using our MGL Central application you can define as many other strips as you like, either by using known coordinates and threshold elevations or - if you happen to be able to see your strip on Google Earth - just click on the two ends of the usable runway. Can't really be done any easier...
Perfect, post amended. How about the autopilot recommended by MGL? Is it AHRS-based or Rate-based?
Autopilot recommended by MGL ?
The internal AP is both AHRS and rate based (any AHRS based AP will use rates from the AHRS in addition to knowledge of attitude).
Thanks Rainier. Just to make things clear on the MGL system, can your internal AP, as of TODAY, fly the synthetic VFR Vertical approach generated by your MGL EFIS (I mean both laterally and vertically)? Can it fly an IFR vertical approach (ILS or LPV) coming from an external source of IFR navigation (like a GTN650)?
Happy Friday everyone,
Without commenting on the several topics of discussion going on in this thread, we just wanted to clarify that adding the capability for a G3X user to set up our VNAV feature to use a flight path angle instead of a vertical speed is in fact something we would like to investigate. If you've been following our products, you'll have noticed that we continue to roll out new features and improvements in our free software updates, and that we do go out of our way to incorporate customer feedback as resources permit.
Everybody have a great weekend, and fly safely...
- Matt
Happy Friday everyone,
Without commenting on the several topics of discussion going on in this thread, we just wanted to clarify that adding the capability for a G3X user to set up our VNAV feature to use a flight path angle instead of a vertical speed is in fact something we would like to investigate. If you've been following our products, you'll have noticed that we continue to roll out new features and improvements in our free software updates, and that we do go out of our way to incorporate customer feedback as resources permit.
Everybody have a great weekend, and fly safely...
- Matt
Happy Friday everyone,
Without commenting on the several topics of discussion going on in this thread, we just wanted to clarify that adding the capability for a G3X user to set up our VNAV feature to use a flight path angle instead of a vertical speed is in fact something we would like to investigate. If you've been following our products, you'll have noticed that we continue to roll out new features and improvements in our free software updates, and that we do go out of our way to incorporate customer feedback as resources permit.
Everybody have a great weekend, and fly safely...
- Matt
Matt, any progress on the "investigation" of providing this ability with the g3x?
Kevin
From time to time customers ask about the synthetic approach capability in the GRT Avionics Sport and Horizon EFIS (all models). How does it work, are public and/or private airports supported, etc. The one question that we have not been able to answer positively til now was, "Can I fly a synthetic approach to my backyard strip?" The answer now, is, yes, you can.
Below are file details to make a synthetic approach in the GRT Avionics EFIS to any landing site you want, anywhere in the world.
<GRTUserDB>
<Airport ident="UDBEX3" lat="42.900000" lon="-85.900000" elevation="604" name="USER DATABASE EXAMPLE 3">
<Runway surface="ASP" length="3000" width="50" >
<RunwayEnd ident="09" lat="42.900000" lon="-85.904000" elevation="606.0" />
<RunwayEnd ident="27" lat="42.900000" lon="-85.896000" elevation="602.0" tdze="602.67" dispthr="200" dispthrelev="602.27" lights="Yes" />
</Runway>
</Airport>
</GRTUserDB>
For more details about Synthetic Approach to Your Backyard Strip go to
http://grtavionics.com/Default.aspx?id=37
To learn more about GRT Avionics, it's products and capabilities visit http://grtavionics.com
Have fun, fly safe!
Regards,
Carlos Fernandez
GRT Avionics
...above, beyond.
Although I have no intention of creating my own approach, (not to mention no idea how even given the info from GRT,) I must say I would do a lot of day clear VAF testing of the approach before I ever tried it at night or in the soup.
As has been mentioned already, Darwin will get involved if folks are not doing things correctly.