Re: [MBZ] FS just up the road
Yes he flew it yesterday morning early before the winds picked up. It's not waterproof, so that aspect is a bit concerning, esp if launching from a boat or it crashes in the water. I told him to zip tie some plastic bottles to it to give some flotation. $1500 is not cheap, but it is worth the risk I guess. --FT On 4/29/19 9:09 AM, Meade Dillon via Mercedes wrote: The limiting factor will be wind, especially at sea, so hopefully he knows the limits of the machine and keeps "a weather-eye aloft". Probably would be a good idea to develop plans for recovery of the drone in high winds, like (1) recognize when winds exceed ability of the drone, and (2) ID a down-wind recovery point, or (3) change altitude to get winds more favorable to recovery. Is it water proof and does it float? - Max Charleston SC On Mon, Apr 29, 2019 at 8:56 AM Buggered Benzmail via Mercedes < mercedes@okiebenz.com> wrote: My buddy who does coral research just bought a $1500 quadcopter for research purposes. Yesterday he had it out testing it using a takeoff, programmed flight path, and return to takeoff position. All on autopilot using the phone “remote controller” and copter gps locations. He said it would land consistently within a foot of its launch point after flying around for about 30min. This performance using a probably $5 GPS chip the size of a small cracker... He programmed it (using an app on his phone that talks to the machine) to fly a grid at a certain altitude and snap images every few meters that can then be combined into a large high-res photogrammetry image that will have sub-centimeter resolution and can be used to make 3D images too. This takes a huge amount of time to process on a computer using some special software that is readily available. His colleague has some camera filters they can use to get multispectral images too, compile them into layers. He’s taking it to Indonesia in a coupla weeks to do offshore coral surveys. I’m going to go visit some evening this week and check it out. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] FS just up the road
My buddy who does coral research just bought a $1500 quadcopter for research purposes. Yesterday he had it out testing it using a takeoff, programmed flight path, and return to takeoff position. All on autopilot using the phone “remote controller” and copter gps locations. He said it would land consistently within a foot of its launch point after flying around for about 30min. This performance using a probably $5 GPS chip the size of a small cracker... He programmed it (using an app on his phone that talks to the machine) to fly a grid at a certain altitude and snap images every few meters that can then be combined into a large high-res photogrammetry image that will have sub-centimeter resolution and can be used to make 3D images too. This takes a huge amount of time to process on a computer using some special software that is readily available. His colleague has some camera filters they can use to get multispectral images too, compile them into layers. He’s taking it to Indonesia in a coupla weeks to do offshore coral surveys. I’m going to go visit some evening this week and check it out. --FT Sent from iPhone > On Apr 29, 2019, at 12:26 AM, Scott Ritchey via Mercedes > wrote: > > For best Lat/Lon accuracy most civilian GPS units select the satellites > closest to the horizon. This is poor geometry for computing altitude. > >> -Original Message- >> From: Mercedes [mailto:mercedes-boun...@okiebenz.com] On Behalf Of G >> Mann via Mercedes >> Sent: Saturday, April 27, 2019 9:17 PM >> To: Mercedes Discussion List >> Cc: G Mann >> Subject: Re: [MBZ] FS just up the road >> >> Military GPS signals are accurate to 3 ft. The signal released to civilian >> use is >> "supposed " to be downgraded to "about 3 meters" give or take, so your target >> accuracy will be off, I suppose. >> >> On Sat, Apr 27, 2019 at 6:08 PM fmiser via Mercedes >> >> wrote: >> >>>> G wrote: >>> >>>> GPS [civilian version] should give you altitude to within 3 meters >>>> anywhere you are. >>>> Do smart phones have GPS function? >>> >>> Mine does. And it reports altitude - but it seems to be a lot more >>> less than 3 meter accuracy. 30? yes. >>> >>> ___ >>> http://www.okiebenz.com >>> >>> To search list archives http://www.okiebenz.com/archive/ >>> >>> To Unsubscribe or change delivery options go to: >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>> >>> >> ___ >> http://www.okiebenz.com >> >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] FS just up the road
The limiting factor will be wind, especially at sea, so hopefully he knows the limits of the machine and keeps "a weather-eye aloft". Probably would be a good idea to develop plans for recovery of the drone in high winds, like (1) recognize when winds exceed ability of the drone, and (2) ID a down-wind recovery point, or (3) change altitude to get winds more favorable to recovery. Is it water proof and does it float? - Max Charleston SC On Mon, Apr 29, 2019 at 8:56 AM Buggered Benzmail via Mercedes < mercedes@okiebenz.com> wrote: > My buddy who does coral research just bought a $1500 quadcopter for > research purposes. Yesterday he had it out testing it using a takeoff, > programmed flight path, and return to takeoff position. All on autopilot > using the phone “remote controller” and copter gps locations. He said it > would land consistently within a foot of its launch point after flying > around for about 30min. This performance using a probably $5 GPS chip the > size of a small cracker... > > He programmed it (using an app on his phone that talks to the machine) to > fly a grid at a certain altitude and snap images every few meters that can > then be combined into a large high-res photogrammetry image that will have > sub-centimeter resolution and can be used to make 3D images too. This takes > a huge amount of time to process on a computer using some special software > that is readily available. His colleague has some camera filters they can > use to get multispectral images too, compile them into layers. > > He’s taking it to Indonesia in a coupla weeks to do offshore coral > surveys. I’m going to go visit some evening this week and check it out. > > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] FS just up the road
For best Lat/Lon accuracy most civilian GPS units select the satellites closest to the horizon. This is poor geometry for computing altitude. > -Original Message- > From: Mercedes [mailto:mercedes-boun...@okiebenz.com] On Behalf Of G > Mann via Mercedes > Sent: Saturday, April 27, 2019 9:17 PM > To: Mercedes Discussion List > Cc: G Mann > Subject: Re: [MBZ] FS just up the road > > Military GPS signals are accurate to 3 ft. The signal released to civilian > use is > "supposed " to be downgraded to "about 3 meters" give or take, so your target > accuracy will be off, I suppose. > > On Sat, Apr 27, 2019 at 6:08 PM fmiser via Mercedes > > wrote: > > > > G wrote: > > > > > GPS [civilian version] should give you altitude to within 3 meters > > > anywhere you are. > > > Do smart phones have GPS function? > > > > Mine does. And it reports altitude - but it seems to be a lot more > > less than 3 meter accuracy. 30? yes. > > > > ___ > > http://www.okiebenz.com > > > > To search list archives http://www.okiebenz.com/archive/ > > > > To Unsubscribe or change delivery options go to: > > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] FS just up the road
> On April 27, 2019 at 10:24 PM Craig via Mercedes > wrote: > > > The Feds turned off "selective availability" (the adding of "noise" to > the GPS signal) several years ago, so the civilian signal is now as > accurate as the military signal. I would imagine that even today, some receivers are better than others. And those put into phones 'because we have to' would likely be the worst. And as Don mentioned, horizontal is still a lot better than vertical. Mitch. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] FS just up the road
On Sat, 27 Apr 2019 18:16:39 -0700 G Mann via Mercedes wrote: > Military GPS signals are accurate to 3 ft. The signal released to > civilian use is "supposed " to be downgraded to "about 3 meters" give > or take, so your target accuracy will be off, I suppose. The Feds turned off "selective availability" (the adding of "noise" to the GPS signal) several years ago, so the civilian signal is now as accurate as the military signal. Craig ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] FS just up the road
The civilian GPS is accurate horizontally to 3 meters, but GPS was not designed for vertical measurement and is off quite a bit in altitude sometimes, closer at other times. On Sat, Apr 27, 2019 at 8:17 PM G Mann via Mercedes wrote: > Military GPS signals are accurate to 3 ft. The signal released to civilian > use is "supposed " to be downgraded to "about 3 meters" give or take, so > your target accuracy will be off, I suppose. > > On Sat, Apr 27, 2019 at 6:08 PM fmiser via Mercedes > > wrote: > > > > G wrote: > > > > > GPS [civilian version] should give you altitude to within 3 > > > meters anywhere you are. > > > Do smart phones have GPS function? > > > > Mine does. And it reports altitude - but it seems to be a lot > > more less than 3 meter accuracy. 30? yes. > > > > ___ > > http://www.okiebenz.com > > > > To search list archives http://www.okiebenz.com/archive/ > > > > To Unsubscribe or change delivery options go to: > > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > -- OK Don *“Travel is fatal to prejudice, bigotry and narrow-mindedness, and many of our people need it sorely on these accounts.”* – Mark Twain "There are three kinds of men: The ones that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves." WILL ROGERS, *The Manly Wisdom of Will Rogers* 2013 F150, 18 mpg 2017 Subaru Legacy, 30 mpg 1957 C182A, 12 mpg - but at 150 mph! ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] FS just up the road
Military GPS signals are accurate to 3 ft. The signal released to civilian use is "supposed " to be downgraded to "about 3 meters" give or take, so your target accuracy will be off, I suppose. On Sat, Apr 27, 2019 at 6:08 PM fmiser via Mercedes wrote: > > G wrote: > > > GPS [civilian version] should give you altitude to within 3 > > meters anywhere you are. > > Do smart phones have GPS function? > > Mine does. And it reports altitude - but it seems to be a lot > more less than 3 meter accuracy. 30? yes. > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] FS just up the road
> G wrote: > GPS [civilian version] should give you altitude to within 3 > meters anywhere you are. > Do smart phones have GPS function? Mine does. And it reports altitude - but it seems to be a lot more less than 3 meter accuracy. 30? yes. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] FS just up the road
GPS [civilian version] should give you altitude to within 3 meters anywhere you are. Do smart phones have GPS function? [Refuse to use one, so I don't know]. On Sat, Apr 27, 2019 at 12:23 PM fmiser via Mercedes wrote: > > OK wrote: > > > From the ad - "the steering wheel, which is equipped with an > > altimeter." I did once install an altimeter and a turn & bank > > indicator in the VW bug (1951 model). The altimeter didn't move > > much unless I was in the mountains, and even then it was slow. > > My 'phone has a barometric pressure sensor. It is amazingly > sensitive and will report _changes_ in altitude of a meter or two > pretty consistent and dependable. > > Absolute altitude is harder to get, since I don't have ATIS > reports for most of the places I drive. > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] FS just up the road
Most ATIS and AWOS stations have phone numbers you can call to hear the reports - I find them at https://www.airnav.com/ in the Airport Communications section like this: CTAF/UNICOM: 122.8 WX ASOS: 133.975 (405-282-0478)It can be tricky to find the airport name nearest you without a chart though if you don't already know. On Sat, Apr 27, 2019 at 2:23 PM fmiser via Mercedes wrote: > > OK wrote: > > > From the ad - "the steering wheel, which is equipped with an > > altimeter." I did once install an altimeter and a turn & bank > > indicator in the VW bug (1951 model). The altimeter didn't move > > much unless I was in the mountains, and even then it was slow. > > My 'phone has a barometric pressure sensor. It is amazingly > sensitive and will report _changes_ in altitude of a meter or two > pretty consistent and dependable. > > Absolute altitude is harder to get, since I don't have ATIS > reports for most of the places I drive. > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > -- OK Don *“Travel is fatal to prejudice, bigotry and narrow-mindedness, and many of our people need it sorely on these accounts.”* – Mark Twain "There are three kinds of men: The ones that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves." WILL ROGERS, *The Manly Wisdom of Will Rogers* 2013 F150, 18 mpg 2017 Subaru Legacy, 30 mpg 1957 C182A, 12 mpg - but at 150 mph! ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] FS just up the road
> OK wrote: > From the ad - "the steering wheel, which is equipped with an > altimeter." I did once install an altimeter and a turn & bank > indicator in the VW bug (1951 model). The altimeter didn't move > much unless I was in the mountains, and even then it was slow. My 'phone has a barometric pressure sensor. It is amazingly sensitive and will report _changes_ in altitude of a meter or two pretty consistent and dependable. Absolute altitude is harder to get, since I don't have ATIS reports for most of the places I drive. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] FS just up the road
From the ad - "the steering wheel, which is equipped with an altimeter." I did once install an altimeter and a turn & bank indicator in the VW bug (1951 model). The altimeter didn't move much unless I was in the mountains, and even then it was slow. The turn & bank bounced from peg to peg all the time - worthless, but then, who'd want to make a 2 minute per 360 degree turn in the car? On Sat, Apr 27, 2019 at 12:29 PM Craig via Mercedes wrote: > On Sat, 27 Apr 2019 11:18:03 -0400 Floyd Thursby via Mercedes > wrote: > > > Looks like seller might the local Benz dealer owner Baker? > > > > https://bringatrailer.com/listing/1970-mercedes-benz-600/ > > What is the strange gauge on the center of the steering wheel in > > https://cdn.bringatrailer.com/wp-content/uploads/2019/03/1970_mercedes-benz_600_1553617833f66e7dff9f98764daIMG_3589.jpeg > ? > It goes from zero to 10,000 of whatever units it is displaying. > > It certainly would not be something I would want to run into > in a wreck ... > > The car has an (aftermarket, I presume) Mallory ignition system, > which is shown in > > https://cdn.bringatrailer.com/wp-content/uploads/2019/03/12343095d565ef66e7dengine-2.jpeg > > > Craig > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > -- OK Don *“Travel is fatal to prejudice, bigotry and narrow-mindedness, and many of our people need it sorely on these accounts.”* – Mark Twain "There are three kinds of men: The ones that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves." WILL ROGERS, *The Manly Wisdom of Will Rogers* 2013 F150, 18 mpg 2017 Subaru Legacy, 30 mpg 1957 C182A, 12 mpg - but at 150 mph! ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] FS just up the road
On Sat, 27 Apr 2019 11:18:03 -0400 Floyd Thursby via Mercedes wrote: > Looks like seller might the local Benz dealer owner Baker? > > https://bringatrailer.com/listing/1970-mercedes-benz-600/ What is the strange gauge on the center of the steering wheel in https://cdn.bringatrailer.com/wp-content/uploads/2019/03/1970_mercedes-benz_600_1553617833f66e7dff9f98764daIMG_3589.jpeg ? It goes from zero to 10,000 of whatever units it is displaying. It certainly would not be something I would want to run into in a wreck ... The car has an (aftermarket, I presume) Mallory ignition system, which is shown in https://cdn.bringatrailer.com/wp-content/uploads/2019/03/12343095d565ef66e7dengine-2.jpeg Craig ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
[MBZ] FS just up the road
Looks like seller might the local Benz dealer owner Baker? https://bringatrailer.com/listing/1970-mercedes-benz-600/ -- --FT ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
