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#21
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IFR with a VFR GPS
"Steven P. McNicoll" wrote:
"Peter R." wrote in message ... Primary navigation (the VFR GPS) is no longer reliable, the aircraft is IMC, and the pilot is unaware that the unit is no longer reliable. Those are not properties of a problem? I don't think so. If the aircraft drifts off course the controller will nudge it back and the pilot will then be aware that the unit is no longer reliable. No problem. Assuming the aircraft is in controlled airspace. What if it isn't? -- Peter ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#22
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IFR with a VFR GPS
"Peter R." wrote:
"Steven P. McNicoll" wrote: "Peter R." wrote in message ... Primary navigation (the VFR GPS) is no longer reliable, the aircraft is IMC, and the pilot is unaware that the unit is no longer reliable. Those are not properties of a problem? I don't think so. If the aircraft drifts off course the controller will nudge it back and the pilot will then be aware that the unit is no longer reliable. No problem. Assuming the aircraft is in controlled airspace. What if it isn't? Sorry, I mean assuming the aircraft is in radar contact. -- Peter ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#23
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IFR with a VFR GPS
"Peter R." wrote in message ... Assuming the aircraft is in controlled airspace. What if it isn't? We're not assuming the aircraft is in controlled airspace, we know it is. That was established in the original message. |
#24
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IFR with a VFR GPS
"Peter R." wrote in message ... Sorry, I mean assuming the aircraft is in radar contact. Radar monitoring is required for off-airways routes beyond navaid altitude/distance limits. So if not in radar contact your route will be via airways or between navaids within the established limits. You'll know the VFR GPS is unreliable when it no longer agrees with your more traditional navigation radios. |
#25
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IFR with a VFR GPS
"Steven P. McNicoll" wrote:
You'll know the VFR GPS is unreliable when it no longer agrees with your more traditional navigation radios. Assuming the pilot is continually tuning his traditional navigation radios, then including those in his instrument scan. And what if he does not? You asked what the risks of flying IFR with a VFR GPS are. There's one. -- Peter ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#26
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IFR with a VFR GPS
"Peter R." wrote in message ... Assuming the pilot is continually tuning his traditional navigation radios, then including those in his instrument scan. And what if he does not? Why would he do that? You asked what the risks of flying IFR with a VFR GPS are. There's one. But I didn't ask what are the risks of flying IFR using a VFR GPS exclusively. |
#27
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IFR with a VFR GPS
"Steven P. McNicoll" wrote:
But I didn't ask what are the risks of flying IFR using a VFR GPS exclusively. You didn't ask what are the risks of flying IFR using a VFR GPS in concert with other navigation instruments, either. -- Peter ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#28
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IFR with a VFR GPS
"Peter R." wrote in message ... You didn't ask what are the risks of flying IFR using a VFR GPS in concert with other navigation instruments, either. No, I didn't. I didn't have to, as the the other navigation instruments are required to be there. The bottom line is you haven't identified any risk from flying IFR with a VFR GPS. |
#29
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IFR with a VFR GPS
"Steven P. McNicoll" wrote:
No, I didn't. I didn't have to, as the the other navigation instruments are required to be there. Are they required to be used? The bottom line is you haven't identified any risk from flying IFR with a VFR GPS. Yes I did. Just because your newsgroup pride won't let you recognize it doesn't mean it didn't happen. -- Peter ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#30
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IFR with a VFR GPS
"Peter R." wrote:
"Steven P. McNicoll" wrote: "Peter R." wrote in message ... What happens when these VFR GPS's drop reception of all but one or two satellites? Do they instantly provide a RAIM message? I don't know? Is it a problem if they don't? If the pilot were using the unit for primary navigation in IMC and the unit did not warn the pilot of too few satellites to be able to calculate position, would that be a problem? You should note that if you lose lock (too few satellites) then your display will start flashing (or portions of it). That is not RAIM which determines if you have a signal error. Ron Lee |
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