It is interesting because they say it is 2398 flight miles between SFO and Honolulu airports. That probably assumes you go 100 percent straight between those two airports. I think I got something close to that when I compared the two points on my GPS.
However, the flights are seldom direct between two points. There are air corridors much like highways on the ground. By the time we arrived in Honolulu, we had actually flown closer to 2500 miles.
So, the question of the mid point assumes a direct line, not exactly what happens in reality.
I marked a point around 1200 miles from San Francisco. It is as follows. Lat: 28, 25, 35.1300 N. Lon: 140, 16, 5.1720 W.I'd be curious next time someone flies to Hawaii how close you come to this point.
So, to play our own game, how far is it between Honolulu and Chicago O'Hare airports and where is the mid point?
What technique did you use for both of these questions?Don't email the list until I ask for your answers. I'll share my techniques and then ask what you did. Go ahead and cue up your answer before you hear mine and then send it once I ask for your email.
Mike At 06:42 PM 4/16/2008, you wrote:
Providence, Nice. Makes me hungry for a Diangelos #9 steak sub! :)The Pizza and Sub sandwiches AKA grinders they make out here in the wild west need a lot of work! I'm taking a flight for work in the next few weeks, I'll give the receiver in the window shade thing a try.Thanks mike. ----- Original Message ----- From: "Michael May" <MikeMay@xxxxxxxxxxxxxxxx> To: <gps-talkusers@xxxxxxxxxxxxx> Sent: Wednesday, April 16, 2008 6:31 PM Subject: [gps-talkusers] Re: half way to HawaiiI take the receiver out of its case and slide it between the shade and the window. This seems to work on most aircraft but not all. Sometimes the fit is too tight.I am now headed from Honolulu to Providence Rhode Island via Chicago. Way too long to sit on airplanes.Mike At 02:21 PM 4/16/2008, you wrote:Hi, that's interesting.So the plane I flew in and tried this most recently had smaller windows than your average boing 7xx or airbus 3xx so that may have been part of my problem. I recorded speeds, when I could get a fix, around 700 (high 690's) but I think the average comercial speeds are in the 5 - 6 range, figuring in wind and so on your speed over ground very well might have been right in that range. I'll take smaller windows and no GPS though, 3 hours ten minutes from San Jose to Rhode Island was pretty hot!:) Got there before the drugs stopped working and I needed a maintenance dose.:) I have to say though I think that's a pretty cool use for the Sendero product. I don't know how many flights I've been on where the pilot just didn't care about giving updates and about 3 hours in you get a bad case of "are we there yet". Knowing exactly where you are would be nice. Another example of where our tools give us an edge.----- Original Message ----- From: "Chris Grabowski" <chris@xxxxxxxxxxxxxxxx>To: <gps-talkusers@xxxxxxxxxxxxx> Sent: Wednesday, April 16, 2008 11:59 AM Subject: [gps-talkusers] Re: half way to HawaiiHi, I've used the m-1000 cross the country twice with no issues. both times I had it on my shoulder. If I remember correctly the top speed was somewhere around 650 mph. I actually have a replay of the entire four hour flight. Chris On Wed, 16 Apr 2008 11:53:21 -0700, "Scott Granados" <gsgranados@xxxxxxxxxxx> wrote:Mike and others, do the consumer portable GPS receivers (like the Holux) work well at altitude and speed in a comercial flight? I know that Cell phones can work but you have to position them just right in the window and even there it's sketchy because it's not so easy to get a signal in or out of a big metal tube. Texting was the best reliable method at speed, voice was flakey so I'd expect GPS (being in the same frequency neighborhood)would be tricky? Also, do they work at the higher rates of speed? I triedsome of this with a US-Globalsat receiver and it was problematic.Cool use of the tool though. Wonder if United will figure it out when a bunch of blind air travelers consistently start winning the prise with yourPOI.:)----- Original Message ----- From: "Michael May" <MikeMay@xxxxxxxxxxxxxxxx>To: "GPS-talkusers-freelists.org" <GPS-talkusers@xxxxxxxxxxxxx> Sent: Wednesday, April 16, 2008 11:22 AM Subject: [gps-talkusers] half way to HawaiiUnited Airlines plays a game when flying from San Francisco to Hawaii. Thepilot gives passengers a variety of information so we can guess the time the flight crosses the midway point between the two airports. Should you have obtained permission to use your GPS on the flight, you might be able to have a little extra tool working in your favor. It is a bit tricky because the head winds change and the speed is slower during the first 20 minutes of flight as you reach the cruising altitude. I came within 4 minutes but someone else won the prize. I did drop a user POI close the the mid point to help future GPS travelers. Mike Michael G. May CEO Sendero Group "The GPS company:" Sendero Featuring GPS on the mPower, PK and Voice Sense. Also distributing Trekker, Victor Stream, KNFB Mobile Reader, Talks,, Tiger embossers, Miniguide and ID Mate Crashing Through by Robert Kurson available at http://www.CrashingThrough.com MikeMay@xxxxxxxxxxxxxxxx http://www.SenderoGroup.com 1-888-757-6810, Fax (530) 757-6830, Mobile (530) 304-0007 Sendero Group, LLC 1118 Maple Lane, Davis, CA 95616-1723, USA__________ Information from ESET Smart Security, version of virus signature database 3031 (20080416) __________The message was checked by ESET Smart Security. http://www.eset.comChris Grabowski - Customer Support and Product testing Sendero Group "The GPS company." Also, distributors of the mPower, PK, Victor Stream, Voice Sense, KNFB Mobile Reader, Talks, Miniguide and ID Mate Phone: 888-757-6810 EXT. 113 Email: chris@xxxxxxxxxxxxxxxxMichael G. May CEO Sendero Group"The GPS company:" Sendero Featuring GPS on the mPower, PK and Voice Sense. Also distributing Trekker, Victor Stream, KNFB Mobile Reader, Talks,, Tiger embossers, Miniguide and ID MateCrashing Through by Robert Kurson available at http://www.CrashingThrough.com MikeMay@xxxxxxxxxxxxxxxx http://www.SenderoGroup.com 1-888-757-6810, Fax (530) 757-6830, Mobile (530) 304-0007 Sendero Group, LLC 1118 Maple Lane, Davis, CA 95616-1723, USA
Michael G. May CEO Sendero Group"The GPS company:" Sendero Featuring GPS on the mPower, PK and Voice Sense. Also distributing Trekker, Victor Stream, KNFB Mobile Reader, Talks,, Tiger embossers, Miniguide and ID Mate
Crashing Through by Robert Kurson available at http://www.CrashingThrough.com MikeMay@xxxxxxxxxxxxxxxx http://www.SenderoGroup.com 1-888-757-6810, Fax (530) 757-6830, Mobile (530) 304-0007 Sendero Group, LLC 1118 Maple Lane, Davis, CA 95616-1723, USA