# Tower Hill - Note about HMS President
**URL:** https://greyarro.ws/t/tower-hill-note-about-hms-president/67140
**Category:** Drone Scene
**Created:** [23 August 2023 22:30 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140 "2023-08-23T22:30:15Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@bmsleight](https://greyarro.ws/u/bmsleight)
#### Post date: [23 August 2023 22:30 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/1 "2023-08-23T22:30:15Z")
Any chance of giving a warning in:-
> **[Tower Bridge](https://dronescene.co.uk/where-to-fly-drone/tower-bridge/london/1935)**
>
> This location has been recommended to fly your drone in the Bridges category in the London region.
That this is very near to HMS President in this view And may be not obvious:-
> **[View this customised share on Drone Scene!](https://dronescene.co.uk/share/8fe7538a67)**
>
> Check out this customised view and its associated layers created by @bmsleight.
relevant:- [Lost my drone in the drink!](https://greyarro.ws/t/lost-my-drone-in-the-drink/67101)
(By the way HMS President has a nice bar and gym…
---
### Author:  [@Earwig](https://greyarro.ws/u/Earwig)
#### Post date: [24 August 2023 12:02 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/2 "2023-08-24T12:02:35Z")
I was pondering this. A lot of the DJI zones are a poor match for our actual CAA zones, and are frequently decried on the forum. I imagine many DS users have that layer turned off for this very reason.
However the DJI geo fences can’t simply be ignored, as they will interfere with your flight, so you probably should have them active.
Question for @PingSpike : Can you tell the difference in the data and split them onto two layers?
Bonus challenge: Create an augmented reality app that displays geo fences superimposed on a live camera view on your phone. 🤣
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### Author:  [@OzoneVibe](https://greyarro.ws/u/OzoneVibe)
#### Post date: [24 August 2023 12:12 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/3 "2023-08-24T12:12:00Z")
> [@Earwig](#):
>
> Can you tell the difference in the data and split them onto two layers?
Spilt what onto two layers? DJI data already has its own layer.
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### Author:  [@ANDMUL](https://greyarro.ws/u/ANDMUL)
#### Post date: [24 August 2023 12:34 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/4 "2023-08-24T12:34:16Z")
I fly a DJI, when I’m at the planning stage of a flight I check Drone Scene without the DJI Geo zone layer to see if its ok to fly, then I put the Geo layer on to see if I will have a restricted height for my planned flight. I flew Tower Bridge last September with the Phantom Flight School, Alan the pilot from the company explained that that area was a no fly area but to keep to the middle of the river on the way down to the bridge and make sure to come back on the otherside and middle of the river to avoid the naval area. I had no problem flying his DJI Mini 3 Pro, in fact thats why I bought one. Maybe its because I still class myself as training that I go a bit in depth before flying.
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### Author:  [@uav\_hampshire](https://greyarro.ws/u/uav_hampshire)
#### Post date: [24 August 2023 12:40 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/5 "2023-08-24T12:40:37Z")
What about some bold wording on the dronescene Tower Bridge entry that this area is subject to strong signal interference and to fly with caution.
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### Author:  [@Sparky](https://greyarro.ws/u/Sparky)
#### Post date: [24 August 2023 12:43 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/6 "2023-08-24T12:43:18Z")
You had good advive there Lynn 👍
> [@Earwig](#):
>
> However the DJI geo fences can’t simply be ignored,
The Fly app has all the information in relation to the DJI NFZ, all DJI drone flyers should check it prior to flying…IMO
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### Author:  [@Earwig](https://greyarro.ws/u/Earwig)
#### Post date: [24 August 2023 12:50 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/7 "2023-08-24T12:50:32Z")
> [@OzoneVibe](#):
>
> Spilt what onto two layers?
Stuff that you can ignore (will not interfere with your flight) and stuff that will eff you up (as in the quoted mishap above).
> [@Sparky](#):
>
> all DJI drone flyers should check it prior to flying…IMO
Completely agree, but by that argument you could completely do away with the DJI layer in DS. 🙂
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### Author:  [@OzoneVibe](https://greyarro.ws/u/OzoneVibe)
#### Post date: [24 August 2023 12:53 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/8 "2023-08-24T12:53:26Z")
> [@Earwig](#):
>
> Stuff that you can ignore (will not interfere with your flight) and stuff that will eff you up (as in the quoted mishap above).
And who has a list of such differences? How many are you aware of? How can they predicted? How are new ones discovered?
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### Author:  [@Sparky](https://greyarro.ws/u/Sparky)
#### Post date: [24 August 2023 12:54 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/9 "2023-08-24T12:54:28Z")
> [@Earwig](#):
>
> Stuff that you can ignore (will not interfere with your flight) and stuff that will eff you up (as in the quoted mishap above).
Who has the time to go through all the DJI FRZ zones layers 🤷♂️
> [@Earwig](#):
>
> Completely agree, but by that argument you could completely do away with the DJI layer in DS. 🙂
I don’t use it on DS other than a quick check but will always check it in the fly app
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### Author:  [@Earwig](https://greyarro.ws/u/Earwig)
#### Post date: [24 August 2023 12:57 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/10 "2023-08-24T12:57:21Z")
> [@OzoneVibe](#):
>
> And who has a list of such differences? How many are you aware of? How can they predicted? How are new ones discovered?
DJI do. I’m only talking about separating the DJI NFZs, which merely give you a warning, and the DJI geo fences, which will physically affect your flight. If they are identified separately in the DJI database (which I assume they are, as they are rendered in different colours in DS) then couldn’t they be put on separate layers?
Edit:
> [@Sparky](#):
>
> Who has the time to go through all the DJI FRZ zones layers 🤷♂️
I’m only proposing two. Not sure why you think there would be loads. 🤷♂️
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### Author:  [@OzoneVibe](https://greyarro.ws/u/OzoneVibe)
#### Post date: [24 August 2023 13:00 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/11 "2023-08-24T13:00:55Z")
> [@Earwig](#):
>
> If they are identified separately in the DJI database (which I assume they are, as they are rendered in different colours in DS) then couldn’t they be put on separate layers?
Then they are already separated for you … by colour. 👍😉
The data is just direct from DJI without any interception. Safest way.
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### Author:  [@Earwig](https://greyarro.ws/u/Earwig)
#### Post date: [24 August 2023 13:04 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/12 "2023-08-24T13:04:29Z")
> [@OzoneVibe](#):
>
> Then they are already separated for you … by colour. 👍 😉
Alight, Dave, you win. I give up. 😆
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### Author:  [@OzoneVibe](https://greyarro.ws/u/OzoneVibe)
#### Post date: [24 August 2023 13:13 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/13 "2023-08-24T13:13:19Z")
It’s more that I don’t see it providing anything reliable enough to add anything.
For certain, were that done, within days someone would have a problem (at another location the other end of the country) and tell us the info was incorrect and it’s “Drone Scene’s fault that I lost my drone!”.
Also a lot of work for a very small advantage - only one location having been identified as needing such special treatment in the 4 years or so that DJI data has been on DS.
And I’ve had signal issues in other built-up areas inundated with wifi that aren’t in any zone on any map. And I’ve had full control and flawless video download at 2.5 miles out over the wifi-less sea at low level.
Conditions vary - and the pilot needs to be aware of that and take the potential risk implications into the pre-flight (/ and mid-flight) assessment. IMO.
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### Author:  [@Sparky](https://greyarro.ws/u/Sparky)
#### Post date: [24 August 2023 13:18 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/14 "2023-08-24T13:18:06Z")
> [@Earwig](#):
>
> I’m only proposing two. Not sure why you think there would be loads. 🤷♂️
In the area we are talking about they are 11 DJI zones 😱
Personally I just wouldn’t fly there 😀
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### Author:  [@Sparky](https://greyarro.ws/u/Sparky)
#### Post date: [24 August 2023 13:19 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/15 "2023-08-24T13:19:41Z")
> [@uav\_hampshire](#):
>
> What about some bold wording on the dronescene Tower Bridge entry that this area is subject to strong signal interference and to fly with caution
You can report it to DJI
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### Author:  [@uav\_hampshire](https://greyarro.ws/u/uav_hampshire)
#### Post date: [24 August 2023 13:22 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/16 "2023-08-24T13:22:26Z")
> [@Sparky](#):
>
> You can report it to DJI
I can’t find an option to submit a report from that tab?
> [@Sparky](#):
>
> Personally I just wouldn’t fly there 😀
I won’t be ever again! 😬
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### Author:  [@milkmanchris](https://greyarro.ws/u/milkmanchris)
#### Post date: [24 August 2023 13:23 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/17 "2023-08-24T13:23:33Z")
Not everyone flys DJI
And anyone who does with any sense should be using DroneHacks (or similar)
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### Author:  [@Sparky](https://greyarro.ws/u/Sparky)
#### Post date: [24 August 2023 13:27 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/18 "2023-08-24T13:27:14Z")
> [@uav\_hampshire](#):
>
> I can’t find an option to submit a report from that tab?
It says you can in the app using fly spots 🤷🏻♂️
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### Author:  [@ANDMUL](https://greyarro.ws/u/ANDMUL)
#### Post date: [24 August 2023 13:36 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/19 "2023-08-24T13:36:49Z")
I have read a lot about the DJI hacks on these forums, how does that affect your DJI replacement if you log a flyaway or drowned drone? Would it mean that if there was an event like this that DJI could say that you’re in breach of any guarantee or cover?
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### Author:  [@Earwig](https://greyarro.ws/u/Earwig)
#### Post date: [24 August 2023 13:38 UTC](https://greyarro.ws/t/tower-hill-note-about-hms-president/67140/20 "2023-08-24T13:38:36Z")
Note: The only reason I’m persisting with this is the desire to be understood. I’m not disagreeing with either of your arguments against implementing it, but you both seem to be making my original idea sound far more complicated that I perceived it to be.
> [@Sparky](#):
>
> In the area we are talking about they are 11 DJI zones 😱
As far as I know (and I’m not an expert - I stopped flying my DJI a long time ago), only one of those will actually stop your drone responding as you’d expect, as in Doginabag’s invisible wall panic returning from Tower Bridge. I was merely suggesting separating those areas onto their own layer, because the other 10 do very little other than obfuscate more important layers you might have switched on.
> [@OzoneVibe](#):
>
> And I’ve had signal issues in other built-up areas
It’s got nothing to do with signal issues. Just separating DJIs geo fences (Athorization Zones?) from their other clutter.
Happy to be told it’s not that simple. Happy to be told it’s not worth the effort/risk. Ultimately, I don’t care because I’m unlikely to be using it anyway. 😆 But I _do_ like to feel I’ve been understood.
🙂 ☮❤
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