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03-16-2012, 07:30 AM
Replies: 0
Views: 508
Posted By billmi

LiPo for DFIII

I'm looking to dust off my Draganflyer III. All four of my NiCD packs have aged to the point that they can't get it off the ground. I'd like to power it with LiPo, but I suspect there are less...
11-23-2008, 05:44 PM
Replies: 1
Views: 1,301
Posted By billmi

Rotor and battery upgrades for DF III

My DF-III has been in storage for a few years, and I got it out flying today - a whopping 30 seconds of flight time on the NiCAD battery...
Haven't charged up the other three packs yet to see what...
02-15-2005, 07:26 AM
Replies: 4
Views: 668
Posted By billmi

RE: Draganfly keeps turning after crash

It sounds like one or more of your rotors may be slightly damaged.

All four rotors are for lift. The Draganflyer moves by adjusting power to the four rotors (watch the video that came with it....
07-18-2004, 10:52 AM
Replies: 1
Views: 436
Posted By billmi

RE: Draganflyer yaw problem

When flying in a direction, the downwash interacts with the rotors differently, because you're moving off the column of downwash.

I've found it not uncommon to have to make yaw corrections...
Forum: The Clubhouse
07-02-2004, 10:44 AM
Replies: 97
Views: 5,541
Posted By billmi

RE: do you still qaxu?

In 2003, Qaxu Technologies of MN, was trying to raise venture capital. There's always a possibility that they've simply lacked the financial "umph" the get things rolling, and were a bit too...
04-11-2004, 01:23 PM
Replies: 3
Views: 736
Posted By billmi

RE: Which software for analog video

What do you mean by "work with analog video?"

I assume you have video from an analog source - camera or tape.

You can mix it with other analog video sources - like multiple cameras - that...
03-21-2004, 07:01 PM
Replies: 8
Views: 1,063
Posted By billmi


I've had similar effects on CMOS cameras that were light leaks from where the lense assembly mounted to the circuit board.
Try the hood around it first - from black construction paper or something...
03-13-2004, 09:07 AM
Replies: 27
Views: 3,755
Posted By billmi

RE: Anyone seen this CCD board camera

Yep, a neutral density filter.

The problem comes in finding one built to slip onto a microcameral lens mount - I've never seen one.

You can get neutral density filters at camera stores,...
03-12-2004, 01:51 PM
Replies: 5
Views: 858
Posted By billmi

RE: Would this work?

From the product description:

Perhaps 1 pound was the shipping weight - considering packaging, and that their shipping system probably has a 1 pound minimum in the pricing structure.
03-12-2004, 01:48 PM
Replies: 7
Views: 1,407
Posted By billmi

RE: Using a helmet cam for in flight video?

I always thought the big advantage was that you weren't dragging that long cable behind the plane.

Plus if you try to d 3d pattern flying you end up tying the cable in knots.

03-12-2004, 01:44 PM
Replies: 27
Views: 3,755
Posted By billmi

RE: Anyone seen this CCD board camera

Pretty decent price for a color camera like that.

For comparison, lines of horizontal resolution is the way the horizontal resolution in video is measured - it's as close as there is to an...
03-12-2004, 01:34 PM
Replies: 18
Views: 2,027
Posted By billmi

RE: DEEP WATER: Transmission?

Radio waves propagate very poorly through water.

That's why ROVs and underwater communication equipment are set up to communicate through cables our acoustic signals.

If you're going to...
02-19-2004, 12:47 PM
Replies: 9
Views: 1,386
Posted By billmi

RE: 2.4GHZ or 900Mhz Which is best?

What do you need for that license?
Does that license allow for commercial applications (i.e. it's illegal to operate for financial gain under the HAM license, so arial photography for...
01-28-2004, 06:26 PM
Replies: 7
Views: 1,369
Posted By billmi

RE: Best indoor blimp cam?

It's used to displace air in some types of arc-welding. Arc welding with many metals will cause the metal to boil and pop if it's exposed to air during the weld, due to rapid oxidation of the metal....
09-11-2003, 10:53 AM
Replies: 6
Views: 713
Posted By billmi

RE: Your thoughts on a field cam?

Nope, static IP would only be needed if the webcam computer were to be the web host, which is not necessary.

If it were to be streaming video (more than is needed for security and flight...
09-10-2003, 09:46 AM
Replies: 6
Views: 713
Posted By billmi

RE: Your thoughts on a field cam?

What you'll need:

A PC: - pretty much whatever you can get your hands on the cheapest. An old 160 MHz notebook for a couple hundred dollars would do the job fine, and not need much power.

08-22-2003, 11:27 PM
Replies: 13
Views: 1,286
Posted By billmi

Need advice on wirelessvideo system.

I do not have the Technical license, but when I looked into it for the purposes of wireless video, some of the stipulations (i.e. the license identification requirements that have to be done at...
08-22-2003, 11:24 PM
Replies: 6
Views: 569
Posted By billmi


PAL does better color encoding - hence the video engineering joke that NTSC stands for Never Twice the Same Color (it's actually National Television Standards Committee.)

Elevator_Up has covered...
06-07-2003, 11:23 AM
Replies: 15
Views: 1,634
Posted By billmi

Re: Cheap Cameras at Wal-Mart...good or bad

300,000 megapixels would be 547,722 x 547,722 (assuming it was square, the aspect ratio could be different. At 24 bit color that would be some 858 Megabytes of memory per picture (too big to fit on...
05-26-2003, 01:53 PM
Replies: 1
Views: 468
Posted By billmi

Looking for Wright Flyer planes

Both Arizona Models and Dare Engineering make kits. Sky Hooks & Rigging sells the dare kit in a bundle with RX, motors and batteries.

Looks like a fun project - anyone have feedback as to which...
05-26-2003, 01:31 PM
Replies: 12
Views: 1,191
Posted By billmi


The orange discoleration may be light leakage somewhere in the lens mount assembly getting light to the chip (assuming it's a CMOS). The waviness of the image is most likely an artifact of vibration...
01-28-2003, 01:53 AM
Replies: 7
Views: 2,159
Posted By billmi

Cox Engine ID

Fortunately it's still good :-)
9vs can't deliver much amperage.

01-27-2003, 10:59 PM
Replies: 7
Views: 2,159
Posted By billmi

Cox Engine ID

Thanks much for the replies.

Good to hear it should work on the 15%. It's still fresh, picked it up locally.

I'll give it a cleaning with alcohol and another go.

How much voltage/amperage...
01-26-2003, 01:09 AM
Replies: 7
Views: 2,159
Posted By billmi

Cox Engine ID

Hi. I'm a total newbie to this forum (and RC flight in general.)

I built a .40 Cub from a kit that was a gift, but decided not to smash it up learning to fly, so I scratch built an electric L19...
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