Krzysztof Bosak's Discussions
ALTIGPS a new altitude sensor is available
Started this discussion. Last reply by Krzysztof Bosak Jul 5, 2009. 5 Replies 0 Likes
What flight dynamics can be achieved with EasyStar using autopilots
Started this discussion. Last reply by wayne garris May 3, 2009. 11 Replies 0 Likes
Krzysztof Bosak's Page
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Krzysztof Bosak's Blog
RC range simulation at ground level.
Posted on December 27, 2011 at 7:00pm 6 Comments 2 Likes
Hi,
we have performed RC range simulations for 2 systems:
35MHz, 2.5m mean antenna height, 1m receiver height (vertical mast on the UAV)
and
2.4GHz, 2m TX antenna height, 0.5m receiver height (short antennas)
in order to simulate it over a vast terrain we know and use.
The range plot was made from 4km2 elevation model made by Pix4D and Pteryx UAV.
Treat it as a kind of reminder of what happens when landing using FPV.
We…
Continue Vickers Wellington UAV
Posted on December 20, 2011 at 5:00am 5 Comments 5 Likes
Vickers Wellington as UAV
Bi-motor airplane serving as test platform for FLEXIPILOT.
Used for testing single-engine failures and tuning.
Elevator, differential ailerons, no rudder.
Endurance 50min with one battery.
Cruise speed 50km/h.
Shown loiters at low altitude since at typical cruise altitude of 200m it…
Fournier RF-5 as UAV
Posted on November 21, 2011 at 5:51am 7 Comments 0 Likes
Fournier RF5 as UAV
A low-wing stall-prone (due to specific airfoil) motoglider, flown without Pitot Tube.
Endurance 30-45min with one 4Ah battery, but it is so efficient it would fly easily for well above 1.5h.
Yet, I don't like the fact you have to throw it overhead so it will stay limited.
Cruise speed 45km/h.
Shown…
Monton 1600V as UAV - my most beautiful UAV
Posted on November 12, 2011 at 1:12pm 14 Comments 2 Likes
A V-tail hotliner integrated with autopilot.
Endurance 30min because of small fuselage capacity,
cruise speed 50km/h. Shown loiters on small altitude since
at typical cruise altitude of 200m it is almost impossible to track a flying object on a clear…
GreatPlanes LANCAIR EP as UAV
Posted on November 11, 2011 at 6:15am 14 Comments 1 Like
Rarely a semi-scale platform is chosen for hobby use as UAV since before the tuning phase is finished, the platform is usually ugly after several damages. But not this time. No flying machines were hurt during making this movie.
Comment Wall (5 comments)
- At 12:13am on October 23, 2008,
Jani Holopainen said…
- In the picture i'm using my first setup. Motor is some cheap china outrunner (1750kv) and Varioprop adjustable three blade hub with 5.8" long D blades. Blade angle was setup to deepest settings. This setup was no good.
I'm currently running my heavy AP Easy Star with Hobbycity products. Motor is HXT 2835 (380S) 2200kv Brushless Inrunner and prop is JM 6x4. This setup takes about 20A on 3S LiPo with full throttle and it is very powerfull combination. Motor weight is 110g. It's quite heavy but packs plenty of power. I can recommend this setup. I have two setup's and they work fine.
- At 8:03am on September 24, 2009,
VIRUSS said… - You may know of this site.
You can build your own Scan Eagle / owl here Le Phan is the designer and builder back in 06 you can buy the plans for $15.
http://www.rcgroups.com/forums/showthread.php?t=549982
- At 9:45am on March 9, 2010,
Rick Steele said… - Hi Krzysztof,
I have a new one coming up in about a month or so hopefully if I can pull myself away from here and finish the board layout.
The new one will be a production level board. It will have the same and better features as this one including 2 video channels and a 3D graphics engine among other things but best of all it will cost much less to build making it cost effective to resale.
The current version is a little pricy to build because it was designed to have everything I might need onboard for initial software design ideas and testing.
Now all I need to do is find a 3D graphics programmer to help us come up with some really cool hi-tech augmented flight instrumentation features to take advantage of the new 3D engine especially for Helicopters and Quadcopters which have a tendency of leaving you not knowing what they are doing when not flying straight ahead.
Anyway we are supposed to have the new boards done in early April. Then there will be some software porting of existing software. We will release boards then while we start working on new display designs.
Thank you for your comments and interest. Stay in touch and have a great week…
Regards
Rick
- At 11:28am on June 21, 2011,
John Galczynski said… Hi,
Thanks for the web site links - impressive airplane work. I've been exploring the limitations of the MQ-9 2.5m platform and decided to learn from your criticism of its inherent limitations. A redesign rather than a scale clone is called for, particularly, one in depth suited for specific application or a multi-function role.
Is there a resource analogous to "The Art of Electronics" (where essential design math is condensed to useful quick tools and concepts) in aerodynamic design you may suggest?
Cheers,
John
- At 9:56pm on June 21, 2011,
John Galczynski said…
Just a follow up, I found some clear useful technical explanations on university aeronautical engineering course sites.
Regards,
John
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