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Messages - Deerslayer

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Reg likes this quote great quote from a great man:

"Success consists of going from failure to failure without loss of enthusiasm." - Winston Churchill

Some of us are getting pretty good at that! Very, very enthusiastic ... Or, as I like to say:

 "Old enough to know better, young to resist." - not Churchill

Just a suggestion, this could be in the KRCM event and activities thread, would get more visibility

Actually, it's not supposed to have any visibility, it's sort of a "virtual" contest, you see. Just two of Flypaper's old flying buddies goading each other on in the spirit of the Master. Terry sort of seems to have gotten caught up in it somehow, as well - go figure!

These days in our Club, most guys buy ARFs, a few still build from kits and the occasional hard core types design and build their own balsa machines. There are only a couple of us who enjoy wasting our time creating cheap crap that may, or may not, fly very well but provide great amusement for ourselves and our many admiring onlookers. (Well, perhaps not all that many, but who doesn't like to witness the failures of others?)

General Discussion / Re: Leading Edge
« on: February 11, 2019, 11:43:15 AM »
This post, from awhile back, may be of some interest in view of this turn of events:

A few more pics from 2011 Auction

How quickly Time passes! And, how we forget some of the great times. I stumbled across some pictures that I took at out 2011 Auction and thought that y'all might find them to be interesting. Granted, some of the folks in here looked a tad younger at that time, but most of them still come out to the KRCM Toyground to play with "us"  :D younger kids.

There are a couple of famous people shown in here - 2 former MAAC Presidents, 3 former Zone Directors (some overlap between the former and latter, of course).

This Auction took place, as it had for many years, on a Monday evening at the RCAFA Club, combined with our monthly business meeting. For the past several years, we have held the Auction during the day on the Saturday (no meeting!) to allow for the greatly expanded amount of activity and to make it easier for folks from "away" to attend. Of recent years, this event has processed from $3000 to over $10,000 each time. One Auction, held during the summer at a deceased Member's family residence, passed the $30,000 mark.

I hope that these pictures may help you get the sense of the thing and a hint of the fun time it is for all of us. The 2019 Auction Team is once again all geared up and ready to Make It Happen!

Plans, Projects, Building and Flying Tips / Prop Stopper
« on: January 29, 2019, 08:49:50 AM »
No! Not your fingers!

This can be useful on flying wings with pusher prop arrangement or on any plan where you want the prop to stop at a specific orientation, e.g.,  when you mount a camera up front and do not want a dead or windmilling prop to be blocking the view.

Take a piece of nylon monofilament (weedeater wire) and punch a hole through the foam such that it can project out just past the prop or be fully retracted away from the prop. Use a cheap servo, as there is no force involved here. Now, when the motor is powered off, your prop stopper can be advanced and the windmilling prop should come to rest aligned in an approximately horizontal position.

But, we don't want to simulate the old "playing card in the bicycle spokes" deal, do we? (Really, really old guys may still remember when that was part of our youthful entertainment as street urchins). So, what I do is to have my Lockout switch activate the prop stopper. On the DX9, I set the servo speed for that channel such that it retracts the stopper at normal speed but the activation is done at slower speed. That probably does not matter, but seems like a good idea to give the prop a short time to freewheel and wind down after chopping the throttle, plus it is a trivial thing to set up, so why not do it. You could also set this up to activate via your Throttle stick (use Digital Switch Setup on Spektrums), triggered when it is pulled fully back/off.

Note that I mention the Lockout switch. Of course, we all employ the normal Throttle Cut (if you don't you should not be flying!). All of my planes have an additional switch set up to accomplish the same thing, as has been recommended and posted elsewhere in our Forum, at least for Spektrum and Graupner systems. That way, an unintentional bump or such of the normal Throttle Cut switch will not allow power to the motor unless this Lockout switch also allows it. I set both switches every time I pick up a model which has a battery in it, or I am about to plug in a battery or when I work on it on the bench - unless I forget, in which case perhaps at least one of the 2 switches may be in the Safe position.

I have, or have had, a lot of flying wing and delta style planes. Whether they be pusher or tractor prop setups, it would be nice to count on landing with the prop horizontal. Honestly, I have never broken a prop on landing one of these planes, regardless of prop orientation. I do not use a rubber band "prop saver", The only time I ever lost a prop was on the one plane where I had use this so-called "prop saver" - the prop is still out in the wilderness somewhere, being "saved" for the mouseys to nibble on, I suppose. :'(

On most landings with a pusher flying wing, the prop will tend to spool down and line up with the wing if the plane is slowed at the right rate. Sometimes, you can help it by doing an abrupt pull up or even jogging the the throttle later on as you approach the landing. Even if the prop is not horizontal but is still moving, it will nudge into position as first contact with ground is made - unless you manage to really slam it down, tail low, I suppose. Just watch out for those really high alpha landings where it falls out of the sky at zero groundspeed, prop first!  :o

VIDEOS and PICTURES from KRCM Events and Activities / Wing Launcher
« on: January 27, 2019, 09:23:32 AM »
I just finished cobbling up a short video showing this contraption in action and being used by one of my $Tree flying wings. The launch shown here is a tad on the weak side, due to the battery being not fully charged. Subsequent launches were more dramatic.

It took about 15 minutes to create the launcher. It partially disassembles and I am a happy camper. This is an improvement on my armchair launches or hand launches and will allow sitting down for FPV launch or for someone who has a disability and may no be able to manage otherwise. Or, for folks who are just plain laid back and lazy.

I used 3/4" plastic pipe, some T's and a couple of 45 degree couplings. No glue - I just drilled holes for a small screw at each joint, except for the ones where the verticals go into the bottom support. That way, I can pop those out and shove the three sections into the car. Elsewhere, someone did much the same but instead of using the 45 degree couplings, he bent the verticals to make a 70 degree angle. I figured my way was simpler and more suitable in windy conditions, to try to prevent blowback of the wing. Regardless, everything can be easily changed, if necessary.

Announcement regarding Training Nights will be posted by our Chief Flight Instructor, Jay Kingston,  in early Spring. Stay tuned!

To fly at the KRCM field, you must either have your Wings (refer to our manual, posted in here) or be flying under the supervision of an experienced pilot.

Meanwhile, 2019 MAAC and KRCM Memberships are due.

General Discussion / Re: MAKING CHILI THE KRCM WAY
« on: January 17, 2019, 10:15:07 AM »
Warning! Clickbait alert!

I got suckered into looking at this, believing that Mr. Chili was really going to live up to his promise of delivering the recipe. Narf! The closest you get is to view the picture of him with that smug look as he pours some mysterious concoction from a plastic bag into a witches' cauldron.

          "Fillet of a fenny snake, In the cauldron boil and bake; 
           Eye of newt and toe of frog, Wool of bat and tongue of dog,
           Adder's fork and blind-worm's sting, Lizard's leg and owlet's wing,
           For a charm of powerful trouble,
           Like a hell-broth boil and bubble." .

Methinks that he doth read from Willy Shaky Speare and findeth the recipe! He moved recently, so who knows what potential ingredients he may have found in his new lair? Has anyone seen his kat Sam recently?

 We don't even know if this whole thing was staged, do we? Who is taking the pictures? Could she be the REAL architect of the chili?

Well, ya gotta admit, whatever it was made from and whoever made it, it was pretty good and they deserve credit.

P.S. We demand "proof of life" for poor Sam the kat! A picture alongside today's newspaper or newscast from a reputable organization may suffice. Or else ...

Plans, Projects, Building and Flying Tips / Foamy Hinges
« on: January 12, 2019, 09:30:06 AM »
As I prepare my latest store-bought foamy for flight, I would like to pass along something which I only learned perhaps 4 or 5 years ago and which may be news to some others.

Many foam planes come with foam hinging for the control surfaces. This kind of thing is very strong, sometimes extremely stiff to bend.

 It can become reasonably flexible - if you prepare it properly. Do not think that you have to haul out the knife and start slicing at the hinge, or chop the control surface out in order to re-hinge with (dog forbid!) CA hinges or even Robarts-style pin hinges. I have many hours of hard flying on a number of planes with the original hingeing and no breaks.

The trick is to "season" the hinge.

1. If the controls are already hooked up, unhook the control rod from the surface to be worked on.

2. Work the control surface slowly and gently, back and forth, perhaps half way to their extreme positions. You do not want to tear things apart. Do this a few times.

 3. Then, gradually increase the movement to reach the extreme positions, cycling it slowly a dozen or more times.

4. The hinge is now through its initial break-in. You can continue this deflection more rapidly, Don't go overboard on this and rip things apart!
Do this dozens of times. Some say a hundred - it can't hurt.

You now should have a very strong, yet flexible, hinge that will not unduly load your servo and still resist any tendency to flutter.
In some cases, such as a couple of sailplanes that I own, you will find that the hinge line is at the top (probably)  or bottom (not likely) of the interface between the structure and the control surface. In that case, at perhaps Step 3, you may wish to bend it all the way up and prop it or tape it in place overnight. The hinge will relax into that position and you will find that it becomes even easier to achieve full deflection up and down.

Good luck!

General Discussion / Re: Modelling in Aerodynamic Research
« on: January 10, 2019, 05:50:48 AM »
There were a couple of "Facet"-like models in there!
Surprise, surprise! Barnaby Wainfan and his wife Lynn are both aeronautical engineers and he is presumably still an Adjunct Professor at He co-authored an excellent NASA report in 2004 regarding low aspect ratio aircraft ( think Facermobile!). It was good reading, the PDF is the last (No.6) in this Wikipedia entry:

While you are at it, Google him and check out his resume (PDF). Majorly impressive,  continuing into current times!

General Discussion / Modelling in Aerodynamic Research
« on: January 09, 2019, 09:29:15 AM »
Here is an excellent NASA document which I found in another forum. If you find it too lengthy or difficult to understand, just enjoy the pretty pictures!

Upcoming Events at KRCM and elsewhere / 2019 KRCM Auction - February 16
« on: January 06, 2019, 11:06:58 AM »
The Annual KRCM Auction is Saturday, Feb.16, at the RCAFA Club at Kingston Airport, where the Harvard is mounted.
The doors will be open at 0900 hours, to allow for set-ups and registration.

Clear out those Hangar Queens. If you haven't flown them for months or years, you don't need them. Dig out and dust off that old kit that you're never "gonna get around to" building. Tools, engines, radio gear - it's all welcome. Turn this into cash, then buy someone else's stuff.

Plan to get there in good time, register (FREE, of course!), set up your stuff on a table (no charge)and relax. The Club receives a 10% commission on all sales.

Make use of the RCAFA bar for soft drinks and other libations, popcorn, tater chips, etc. Bring your own sandwich, the action is non-stop!

Throw a buck or two into the 50/50 draw - you may become a very RICH person. We give the other half to the RCAFA, as they waive the usual rental fee for this day.

Browse around, check out the wares, meet others, and get ready for the main event.

Then, the fun really begins We have a highly experienced Auction Team eager to spring into action. Keep them busy, make them happy:

* The Auction itself will get underway as soon as Registration is completed, planning for 1030 hours.

* The 50/50 draw will take place around noon.

* Our Auction System allows Participants to settle up at any time, in case you have to leave early.

* We expect to wrap things up by mid-afternoon.

General Discussion / It goes One Hundred Miles Per Hour
« on: January 01, 2019, 11:53:38 AM »
Fortunately, we haven't had one of these arrive at the Toyground in a long, long time!

Here is a new, very important discovery in the world of penny tech!

An altenative to the usual foamboard has occasionally shown up in the various  Dollarama stores in Kingston. Note: not Dollartree

Aside: Who knew that we have so many Dollaramas around here?

It is called UCreative, with a big, colorful label stuck on it. All sheets are white base but one side has been very lightly coated with a color, typically Yellow or some sort of Red.

Important features:

1. No paper covering.

2. Construction. It is obviously 2 layers of material bonded to form a very stiff sheet that is slightly thicker than either of the paper-covered foamboard products we have been using.

I think that this material is the same as Depron, which is just one company' s name for its polystyrene sheet products.

If you want some, you may have to shop around. I discovered it at the new Cat Center Dollarama several months ago. When I went back a few months later, there was  none. I checked at the downtown store; a shelf stocker guy thought he knew what it was, even checked out back for me, but no luck. Then one day, I found some at the RioCan store. Yippee!

What a great find is this product, for those who hack out foamy flying objects  - a fraction of the price of "official" hobby shop Depron, very disposable!

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