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Messages - Deerslayer

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In Canada, these are sold through Marks. I picked up a couple this winter, CDN$10 each, intending to use them as hand warmers while flying. They have lots of other uses.

One possibility would be to use as a flight pack on glow or gas plane. You will have a 5.5 volt, 2000 mah lightweight power source. All that is needed it to grab a USB cable, chop off the appropriate end and install suitable servo connector to attach to your receiver, etc. As for recharging, any USB charger will work. This unit has an LED that shows if and when it is charging and will terminate the process at the proper time.
If you fly in winter, you could even put one or two of these in a LiPo pouch to keep some batteries warm and/or to prevent your field charger (such as a Cellpro) from going into "Cold Weather" charging mode instead of fully loading your LiPos.
I got caught with a low charge on my Mobius FPV camera one day out at thefield, but just plugged it into one of these and was back in business awhile later.

FPV at KRCM / Re: FPV Startup Information and Ideas
« on: March 08, 2018, 06:58:43 AM »
Regarding the miniature camera/transmitter which Wilf discussed:

This camera/transmitter uses 3.2 to 5.5 volt power, which gives lots of options for batteries.

This particular one, like other similar ones, may be intended to run from a small capacity single cell battery. However, that battery is unlikely to operate the system for more than, say, 5 minutes and is therefore a poor way to power it .

We make a cable which will plug into the camera's connector and then into the balance port of a LiPo. That way, one can be in operation on any plane by simply having a small patch of hook-side Velcro stuck wherever you want the camera to mount and having access to a battery -  we normally use the LiPo that powers the aircraft.

In the case of using your LiPo, the cable  connects to any 2 adjacent wires on the balance plug. As the cells are connected in series,  the voltage will be that of 1 cell, right in the required range. Note: you MUST get the polarity correct!

The very small current draw will not unbalance the LiPo.

So, if you want to try this out on your own aircraft, just ask one of us. We even supply the Velcro! And we have several varieties of the receiving and viewing equipment.

FPV at KRCM / FPV Bands and Channels
« on: March 07, 2018, 10:10:53 AM »
I find this to be a useful depiction of the bands which may, or may not, be available to us. Although this is an Australian file, it is probably valid for us as well.

I notice that for the couple of different 5.8 GHz video transmitters that I have, their individual documentation refers to certain frequencies that may differ from others in the available options.

More to learn ... always!

FPV at KRCM / FPV Frequencies
« on: March 07, 2018, 09:20:11 AM »
We will probably put up a frequency board in the clubhouse sometime soon and/or in this Forum. That would help someone to "claim" a free spot and have some assurance that they will not get wiped out during a flight.

Unlike the RC 2.4GHz control systems we use, these FPV system have ZERO error-checking, do not frequency hop or otherwise prevent you losing contact or being swamped by another signal. In fact, we have found that these so-called Channels are not very precise, nor are the receivers. For instance, on various receivers, you can tell it to search for "your" video transmission and you may find it to appear in varying degrees of clarity on one or more "channels" adjacent to the actual dialed-in one from your particular transmitter. Caution is always advised.

 Amongst my gear, I have a neat, cheap little receiver that plugs into the USB port of an Android phone or table. A free app called FPVdroid can search for active "channels" and you now have a great FPV viewer, including the capability of recording. One nice feature is that it displays the entire spectrum while searching for what you may want. That way, you can see what the environment is like and where your desired signal fits in.

Here is a useful write-up:

FPV at KRCM / FPV Progress
« on: March 07, 2018, 08:49:30 AM »
Wilf, Roger and Gary are still in the early stages of experimenting and learning. Harold is also involved and has become an avid spotter.

With the better weather starting to show up, we are into it full speed now.

Amongst the gear that we have accumulated:
  Mobius cameras, with 5.8 GHz transmitter adapters
  Foxeer and other standalone cameras
  Several 5.8 GHz transmitters
  Tiny camera+transmitter units
  HeadPlay video headsets
  LCD tablet-sized screens with integrated 5.8 GHz receivers
  A 5.8GHz receiver that plugs into Android phone or tablet, includes an excellent spectrum display
 Homemade Pan and Tilt platforms
 HeadTracker circuits to enable camera control via helmet movements

Just yesterday, we had several planes at the Toyground. Included were a couple of my $5 flying wings. Wilf and Roger each had camera+transmitter units that had not been tried yet, so we stuck some Velcro on the bottom of the and tried them out on both of my deltas. I flew the planes, the other guys used the HeadPlays and my LCD screen to get onboard. We did some range checks over a large flying distance (far enough that I almost lost on plane!). This gave good information.

When I left the Toyground, I went straight to Leading Edge and bought the same camer+transmitter unit that Wilf had.  These things are so small and simple that you need nothing more than a patch of Velcro in a suitable location on a plane and a wire pair that can go to one cell of your flight pack or any separate 3.2 to 5.5 volt source. Highl recommended!

We have not tried the HeadTrackers in flight yet ... coming soon!

As of this time, we have tried FPV on at least a dozen very different aircraft and can offer lots of free advice to anyone else that thinks this might be interesting stuff to try yet does not want to plunge into yet another expensive exercise.

Meanwhile, we carry all of our gear with us and are happy to introduce others to the fun. We can even stick a camera onto YOUR plane to try it out, if you wish.

You are doing a nice job, D.

She will be a very nice machine. The full scale one at Old Rhinebeck is a wicked performer and the occasional DVIII large models that have shown up here are terrific flyers.

It warms my tiny heart to see Members of our club actually building kits, it seems to be a rarity these days.

One comment: I notice that very comfy looking chair nearby. I hope your beer fridge is kept at a great distance, else we may never get to see a completed project. Come to think of it, perhaps that is why I have a pile of uncompleted projects here in the Cave.

General Discussion / Re: REAL Indoor flying!
« on: March 01, 2018, 11:04:08 AM »

OK, so here is what some folks can do in a school gym!

It's a nice later Winter (or is it Spring?) day, I have the field all to myself, a great fire in the stove, it's time to play around with a bunch of my flying machines.

Meanwhile, the (Signals Corps?) have been encamped over on the DoD property for several days now, with a large tent and some vehicles sprouting rather interesting looking antennas. So, as part of my flying activities, I did some reconnoitering (fancy term for spying!) of the area.

The Crack Beaver is a light, high performance/wild 3D machine - not the first choice for FPV, but it was begging to have a little go at it anyway. Well, here is a brief video depicting my setup from both aerial and ground viewpoints.

FPV at KRCM / Head Tracker - Part 1
« on: February 24, 2018, 07:23:17 AM »
Where's your head at, Boy!?

Haven't we all heard that? Well, some of us may have, perhaps on more than one occasion!

Wilf and I bought HeadTracker modules from SmartFPV. These units originally were designed by Dennis Frie and have a complete DIY writeup  and a very popular forum in rcgroups. This  company has prompt and efficient tech support, a real bonus for some of us.

We are learning and experimenting now. What is this and how does it work?

The module contains accelerometers and magnetometers for the three axes. These are monitored by an Arduino. Its output is a PCM pulse train that provides commands to up to 3 channels within the stream that will eventually emerge from the rc transmitter.

The unit is cabled to the Trainer port on the Tx. Whenever you select the Student mode via a switch, the HT is in control of whichever channel(s) you had selected. If you de-select, the affected  channel(s) are immediately returned to neutral and control is relinquished to the Tx.

So, the idea is to mount the HT on the FPV goggles or helmet. Then, you connect your aircraft's camera moving servos to one or more channels - normally, for Pan and possibly for Tilt, although Roll may be of use in some situations. 

When head tracking is enabled, the camera will follow your head movements. It's that simple. You get more of the feel of actually being in thr aircraft while flying, as well as being able to do ground ground obstacle checks while taxiing under the hood. Nice,

Well, there can be a lot more to it, but that gets us started!

Meanwhile, I have another HT on order, to serve as a spare as well as for another, unconventional use of thr technology, or perhaps to pass along to someone else who may become interested in trying out this stuff. I will put a little writeup in here as my "secret project" progresses, warts and all.

Buy, Sell, Trade or Give Away / Re: F-16 Ducted Fan Kits for Sale
« on: February 22, 2018, 08:47:37 PM »
One of these kits was taken to the Auction and sold. The remaining kit is still for sale.

General Discussion / REAL Indoor flying!
« on: February 21, 2018, 10:53:18 AM »
Everyone that hangs around our Toyground knows the local masterful Circle Flyer. His name starts with a "D" and has a "Wayne" in it (perhaps that is his alter ego?). Unfortunately, the poor fellow has an actual job, so he cannot come out and play as often as some of us n'er-do-wells. We have often wondered how he keeps his tenuous grip on sanity.

 Well, here is one possibility! Perhaps we can get an invite to slide on over to his house, have some beers and watch how he keeps in practice?

General Discussion / Re: HE'S ALIVE!!
« on: February 20, 2018, 12:46:59 PM »
As of now Thursday looks very good.  :D As for the Pogo I can't remember if he used any mixing.  ??? ???

I am hoping for Thursday.
Yes, he did use mixing. I may even be able to help you. If we could find out who bought his dx9, we could copy his model files onto either  your or my Tx and start from there. Regardless, it is pretty simple. What radio do you have? If it has Flight Modes, there is a lot more we could do.

General Discussion / Re: HE'S ALIVE!!
« on: February 20, 2018, 05:52:46 AM »
That's great news, D.
Now, if we can get some slightly drier weather on one of your days off, we shall see if you and Super are going to be long term BFF's!
It sure will be good to see him back on the prowl again.

Pogo is next, right?

Yes, I do. Email or call me. I am either at home or out flying at (almost) all times!

General Discussion / Real Indoor Flying!
« on: February 04, 2018, 09:18:40 AM »
This is one of the best examples of indoor flying. Note, all that is required is a standard sized basketball court and some really great ideas:

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