Re: KRnet> random thoughts / questions
Ok But how fast are you crossing the ground? so you can sort out your ETA with TAS 510 Phil Sent from my iPhone > On 8 Apr 2025, at 13:48, Evan Burgess via KRnet wrote: > > “ At FL450 our > indicated speed is only about 270kts but our TAS is about 510.” > > > I can only dream of these speeds as I usually fly around at 85-100 kts in an > old Bell 205. Oh well, it’s fun. Surely my eventual KR will be fast. > -- > KRnet mailing list > KRnet@list.krnet.org > https://list.krnet.org/mailman/listinfo/krnet -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet
Re: KRnet> random thoughts / questions
“ At FL450 our indicated speed is only about 270kts but our TAS is about 510.” I can only dream of these speeds as I usually fly around at 85-100 kts in an old Bell 205. Oh well, it’s fun. Surely my eventual KR will be fast.-- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet
Re: KRnet> random thoughts / questions
Phil, Our ground speed would be the true airspeed +/- any tailwind/headwind component. In this case, with an 81 knot tailwind we were doing about 591kts ground speed. I think it illustrates the concept well. It’s the same in the KR or any other aircraft, just the speed differences are more exacerbated in the jet due to the higher altitudes and wind speeds. Cruising in the KR2 at 9500ft my TAS is 130kts, IAS is about 115, and ground speed with a 20kt tailwind would be 150kts. Adam On Tue, Apr 8, 2025 at 3:43 AM Phillip Matheson via KRnet < krnet@list.krnet.org> wrote: > Ok > But how fast are you crossing the ground? so you can sort out your ETA > with TAS 510 > Phil > > Sent from my iPhone > > On 8 Apr 2025, at 13:48, Evan Burgess via KRnet > wrote: > > “ At FL450 our > > indicated speed is only about 270kts but our TAS is about 510.” > > > > I can only dream of these speeds as I usually fly around at 85-100 kts in an > old Bell 205. Oh well, it’s fun. Surely my eventual KR will be fast. > > -- > KRnet mailing list > KRnet@list.krnet.org > https://list.krnet.org/mailman/listinfo/krnet > > -- > KRnet mailing list > KRnet@list.krnet.org > https://list.krnet.org/mailman/listinfo/krnet > -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet
Re: KRnet> random thoughts / questions
On 4/7/2025 9:05 PM, Adam Deem via KRnet wrote: I took this today enroute from LAX to JFK at FL450 + You obviously weren't flying a KR !! What were you flying, a Lear 45 or similar? Larry Flesner -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet
Re: KRnet> random thoughts / questions
Larry: I am not letting it kick my butt. Getting it done Sent from Yahoo Mail for iPhone On Sunday, April 6, 2025, 2:33 PM, Adam Deem via KRnet wrote: We go much faster at altitude, up to where the engine power drops off and limits airspeed because the air is thinner and pushes back less. At FL450 our indicated speed is only about 270kts but our TAS is about 510. We also use a great circle route when going far as it reduces the distance travelled by using the earth’s curvature to our advantage. On Sun, Apr 6, 2025 at 12:23 PM G R Pickett via KRnet wrote: See your post and since I ran the battery on the mower down, I have an excuse to be inside. My only comment on your daughter's flight, is that she actually is travelling further than the ground distance, because the jet is describing an arc above the earth. She's probably 5 miles up, and going around a circle (earth). Considering the diameter of the earth, I'm guessing that someone else can justify that the groundspeed is only infinitesimally decreased. The dAlt , does have something to do with Mach #, but maybe not enough to make the flight early. You would think that a 150 mph tailwind would though. Remember seeing those Flight Arrivals boards update? That's the sound of the result of the navigator's recalc of arrival time (probably just some Garmin device, though). Griff -Original Message- From: KRnet On Behalf Of Larry Flesner via KRnet Sent: Sunday, April 6, 2025 2:07 PM To: krnet@list.krnet.org Cc: Larry Flesner Subject: KRnet> random thoughts / questions As there are zero posts on the net I'll send this out as a test message. While spending 6 hours monitoring my daughters flight from Los Angles to New York, non stop, on ADS-B exchange.com and Flight aware, I'm wondering what the odds are that she flew within one mile of directly overhead of her only sibling (sister) house at the halfway point. I alerted my second daughter and she went outside and heard her sister pass overhead above the solid cloud deck. Second, while watching the flight experiencing a 150 mph tailwind over the Midwest I'm wondering, does an airplane benefit 100 % of the tailwind as increased ground speed or is there some percentage of loss due to the thinner density of the air as compared to a boat floating downstream in a river? See what happens when you have too much recliner time. 😕 And to Luis, you aren't going to let that tailwheel win, are you? Larry Flesner -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet
Re: KRnet> random thoughts / questions
We go much faster at altitude, up to where the engine power drops off and limits airspeed because the air is thinner and pushes back less. At FL450 our indicated speed is only about 270kts but our TAS is about 510. We also use a great circle route when going far as it reduces the distance travelled by using the earth’s curvature to our advantage. On Sun, Apr 6, 2025 at 12:23 PM G R Pickett via KRnet wrote: > See your post and since I ran the battery on the mower down, I have an > excuse to be inside. > > My only comment on your daughter's flight, is that she actually is > travelling further than the ground distance, because the jet is describing > an arc above the earth. She's probably 5 miles up, and going around a > circle (earth). Considering the diameter of the earth, I'm guessing that > someone else can justify that the groundspeed is only infinitesimally > decreased. The dAlt , does have something to do with Mach #, but maybe not > enough to make the flight early. You would think that a 150 mph tailwind > would though. Remember seeing those Flight Arrivals boards update? That's > the sound of the result of the navigator's recalc of arrival time (probably > just some Garmin device, though). > Griff > > -Original Message- > From: KRnet On Behalf Of Larry Flesner via > KRnet > Sent: Sunday, April 6, 2025 2:07 PM > To: krnet@list.krnet.org > Cc: Larry Flesner > Subject: KRnet> random thoughts / questions > > > As there are zero posts on the net I'll send this out as a test message. > > While spending 6 hours monitoring my daughters flight from Los Angles to > New York, non stop, on ADS-B exchange.com and Flight aware, I'm wondering > what the odds are that she flew within one mile of directly overhead of her > only sibling (sister) house at the halfway point. I alerted my second > daughter and she went outside and heard her sister pass overhead above the > solid cloud deck. > > Second, while watching the flight experiencing a 150 mph tailwind over > the Midwest I'm wondering, does an airplane benefit 100 % of the tailwind > as increased ground speed or is there some percentage of loss due to the > thinner density of the air as compared to a boat floating downstream in a > river? See what happens when you have too much recliner time. 😕 > > And to Luis, you aren't going to let that tailwheel win, are you? > > Larry Flesner > > -- > KRnet mailing list > KRnet@list.krnet.org > https://list.krnet.org/mailman/listinfo/krnet > -- > KRnet mailing list > KRnet@list.krnet.org > https://list.krnet.org/mailman/listinfo/krnet > -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet
Re: KRnet> random thoughts / questions
Larry, If it’s a direct tailwind we get all of it in our favor, even up in the thin air of the stratosphere. Adam On Sun, Apr 6, 2025 at 12:07 PM Larry Flesner via KRnet < krnet@list.krnet.org> wrote: > > As there are zero posts on the net I'll send this out as a test message. > > While spending 6 hours monitoring my daughters flight from Los Angles to > New York, non stop, on ADS-B exchange.com and Flight aware, I'm > wondering what the odds are that she flew within one mile of directly > overhead of her only sibling (sister) house at the halfway point. I > alerted my second daughter and she went outside and heard her sister > pass overhead above the solid cloud deck. > > Second, while watching the flight experiencing a 150 mph tailwind over > the Midwest I'm wondering, does an airplane benefit 100 % of the > tailwind as increased ground speed or is there some percentage of loss > due to the thinner density of the air as compared to a boat floating > downstream in a river? See what happens when you have too much > recliner time. 😕 > > And to Luis, you aren't going to let that tailwheel win, are you? > > Larry Flesner > > -- > KRnet mailing list > KRnet@list.krnet.org > https://list.krnet.org/mailman/listinfo/krnet > -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet
Re: KRnet> random thoughts / questions
See your post and since I ran the battery on the mower down, I have an excuse to be inside. My only comment on your daughter's flight, is that she actually is travelling further than the ground distance, because the jet is describing an arc above the earth. She's probably 5 miles up, and going around a circle (earth). Considering the diameter of the earth, I'm guessing that someone else can justify that the groundspeed is only infinitesimally decreased. The dAlt , does have something to do with Mach #, but maybe not enough to make the flight early. You would think that a 150 mph tailwind would though. Remember seeing those Flight Arrivals boards update? That's the sound of the result of the navigator's recalc of arrival time (probably just some Garmin device, though). Griff -Original Message- From: KRnet On Behalf Of Larry Flesner via KRnet Sent: Sunday, April 6, 2025 2:07 PM To: krnet@list.krnet.org Cc: Larry Flesner Subject: KRnet> random thoughts / questions As there are zero posts on the net I'll send this out as a test message. While spending 6 hours monitoring my daughters flight from Los Angles to New York, non stop, on ADS-B exchange.com and Flight aware, I'm wondering what the odds are that she flew within one mile of directly overhead of her only sibling (sister) house at the halfway point. I alerted my second daughter and she went outside and heard her sister pass overhead above the solid cloud deck. Second, while watching the flight experiencing a 150 mph tailwind over the Midwest I'm wondering, does an airplane benefit 100 % of the tailwind as increased ground speed or is there some percentage of loss due to the thinner density of the air as compared to a boat floating downstream in a river? See what happens when you have too much recliner time. 😕 And to Luis, you aren't going to let that tailwheel win, are you? Larry Flesner -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet
