3D Mapping of Colorado's High Peaks

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Hi, I’m in the planning stage of an ambitious project to create a website of high-resolution 3D maps of some of Colorado’s highest peaks: the 14ers. The 14ers are the 53 peaks, scattered around the state, with an elevation over 14,000’. The best maps currently available are the standard USGS topographic maps. These maps only give a general idea of the terrain and hikers, climbers, skiers, search and rescue teams and many others would benefit from having better maps of these peaks.

Here’s a good example of why this important. The USGS 1:24,000 map of Longs Peak (14,259') provides very little useful information to a hiker or climber who must navigate the same terrain shown in the photo. The contour interval is 40’, the height of a 4 story building, and there is no photographic information. A higher-resolution 3D map, of course, would provide much more detail.  

The recent mapping of the Matterhorn (using drones by SenseFly) shows that high-quality (20cm resolution) maps can be produced with a small team and at relatively low cost. The devil, of course, is in the details and that’s why I’m here. I’d like to learn as much as possible and solicit advice from the group about how to generate similar maps of the Colorado 14ers. It certainly seems possible since the Matterhorn is roughly the same size as a 14er.

 

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I’d like to produce and share a plan that compares both the SenseFly and DIY options. The 14ers present many challenges like high altitude, rough terrain, wind, lightning, storms, and cold, but if the project is feasible, I would like to launch a Kickstarter project with the goal of raising funds to begin mapping some of these beautiful peaks.

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  • Some info:

    http://diydrones.com/forum/topics/tbs-caipirinha-setup?id=705844%3A...

    Wings have a lot of procession though (dutch roll), which isn't helpful. That's really difficult to suppress.

    I think it's possible to get good results with larger and smaller platforms. Although smaller platforms typically dance around more, because larger platforms are usually more difficult to throw around, it also has an effect on how easy the platform is controlled.

    In the end it comes down to how well "weighted" the aircraft is (I suppose upper limit is better for stability), how fast the actuators are, how PID loops are tuned and of course flight planning. Flying perpendicular to wind is asking for trouble.

    If the mountain has very strong irregular crosswinds then there's not a lot you can do in flight planning though.

  • I think a larger plane would probably be best both for carrying the mapping gear and handling the rough winds in the Rockies. Also, if you've never flown RC before, you'd really be better off getting the basics down before even thinking about doing this...

  • Looks light, but could be too small... I'd be interested in hearing more...

  • what about the TBS caipirinha for aerial mapping?  has anyone ever tried that?

  • I just read the description (at FPVModel) of the SkyWalker X-6: ~59", large payload, and the wings are easily removable with DB9 connectors for quick cable attach/detach. That would be great for hauling these things up a mountain in a backpack (SenseFly eBee also has removable wings), so if it has the same or better performance as the X-5, then I think I'll select it. 

    Does anyone have any experience with the X-6 or its use for mapping?

    For the X-6, FPVModel recommends:

    - Motor: 2814KV-980 / 3815KV-1000
    - ESC: 60A 
    - Servos: GWS 17g
    - Prop: 9x5" folding
    - Battery: 2x3s 2200mAh / 4s 4000mAh

    I don't have much experience with RC, so any help regarding the plane or the components would be greatly appreciated. Here are my assumptions so far:

     

    DIY Package

    - Plane: 1 x SkyWalker X-6 (~59" wingspan, 770g empty) [~$139]

    - Motor: 1 x ? 2814KV-980 [~$]

    - ESC: 1 x ? 60A

    - Servos: 2 x ? 17g

    - Prop: 1 x ? 9x5" folding

    - Battery: 1 x ? 4s 5000mAh

  • The SenseFly eBee wing has a wingspan of ~38", the SkyWalker X-5 (also used by Aeromao) is ~47", the Deep Reaper is 61", and the SkyHunter is ~71". Given the payload limitation of the Deep Reaper and the large size of the SkyHunter, I'll assume the X-5 for now. I'm assuming a crash or two, so the price is attractive as well. It's also easier to make an apples-to-apples comparison with the eBee.

    Are there any recommended mods to the SkyWalker X-5 that I should consider for this application?

  • I don't know really. I know at least my wing would not easily accommodate a downward facing camera, which you would need for imagery. Something like a Sky Hunter might be a better platform.

  • At the moment, it looks like a flying wing is the airframe of choice. SenseFly uses an X-5 style flying wing and it looks like it worked well on the Matterhorn, but it's what they use for all applications. Any opinions on whether or not this is the best choice for this application? If a flying wing is the best choice, is the X-5 the best size? Or would something larger, like an X-8, be better?

  • It was a Deep Reaper flying wing, 2x 5000mah 4S batteries, 1250kv motor, 10x6 prop. 800mw 1.3ghz VTX and CP antennas (crosshair on the ground).

    I also did another video last summer flying over Loveland Pass and Arapahoe Basin, which you can see on my channel.

  • Patrick McKay: I just watched the YouTube video of your FPV flight to the summit of Mount Bierstadt. Very cool! It's the only video I've ever seen of an RC flight on a 14er. What sort of setup did you use?

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