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Posted by Slider2732 | Feb 12, 2016 @ 05:20 PM | 1,657 Views
Another catch up post, for an aircraft built last October that has gone onward to be a complete and total joy to fly.
It's the Avro Arrow, a fantastic Canadian jet from the 1950's, that was canceled after several had been built. Nearly everything, including the aircraft were immediately ordered to be destroyed. This bird was production ready !
The story itself of this beauty makes for great reading or viewing:
On YouTube /watch?v=7sFRiacvNYo for a documentary.
Also /watch?v=9PMnlnqRex4 for a film made about the planes story,


My own story
While out at the local field flying another plane, I saw something sticking up out of the ground. On walking closer to it, it was found to be an archery arrow !
It seems someone had been practicing and, perhaps because one of the vanes had snapped off the end, this arrow had been disregarded. I plucked it out of the ground and had the immediate idea that it could form a strengthening piece, like a CF rod, for an Avro Arrow. An arrow in an Arrow.

Specs:
Dollar Tree foam, paper removed
Wingspan: 18"
Length: 24"
Eflite 250 motor
5x3 toygrade Sky II prop
10A ESC
AR500 receiver
2x 3.7g servo's (odd implementation detailed later)
2S 450mAh Admiral lipo
Elevons as elevator, Rudder, Throttle
AUW 5.6oz

Initial tests were bad, there was no power from an old (2009) homemade CD-Rom motor. So that was changed to the Eflite 250. The prop had also been a GWS 5x3 and yet the toygrade one far excelled it for...Continue Reading
Posted by Slider2732 | Feb 10, 2016 @ 01:03 AM | 758 Views
A few older builds from the past few months, that haven't been documented.

Firstly, the Polikarpov I-16.
It was a mid 1930's Soviet fighter, more info here:
https://en.wikipedia.org/wiki/Polikarpov_I-16

This one was built in October of last year, but only maidened in November. I'd actually been scared of it on its first outing, which amounted to a fast left hand lap of the small flying field and a quick landing !
It was at that point, that I realised that WOT flying wasn't needed, there was bags of power and she would actually fly at about 1/4 throttle.
On returning out for a real go, I ended up doing my first barrel roll ever - as seen at about 50 seconds into the video (video is silent, due to being taken with a Hubsan quadcopter 2MP camera, mounted on a hat).

Specs:
Dollar Tree foamboard (no paper)
24" wingspan, with KFm2
Wingspar made from a kitchen cooking rack metal bar !
AR500
10A ESC
Eflite 250 motor
5x3 type prop from a Sky II toygrade plane
2S 400mAh lipo
5.6oz
AET

Video, with barrel roll at about 50 seconds in:
Polikarpov i-16 Remaiden (2 min 46 sec)

Posted by Slider2732 | Jan 19, 2016 @ 12:13 AM | 2,392 Views
Finally, finally, finally !
Scubby is a Mini Super Cub type, Super Cubby, Scubby.
Featuring - FliteTest type power pod, magnet held KFm2 wings, quadcopter motor, single servo for ailerons, wings that were built originally for my actual MSC about 6 years ago as spare.

Dollar Tree foamboard
WS 30", ailerons, elevator, throttle
ZMR 1804 motor, 2400kV (intended for quadcopters)
Carbon 5x3 prop
Spektrum AR6110E RX
2x 9g servo
20A ESC
Admiral 450mAh 2S
AUW 6.6oz

Couple of mph wind, glorious clear sky, 35F...not so good about the last part, but anyway.
The idea, was to get this scratchbuild on video. Nothing fancy, just a leisurely fly around.
The magnetic wing works well, less than stellar landings see it pop clean off and pop clean back on. Also makes it an easy thing to transport to the field in a kitchen bin liner (lol)
The last part of the vid is fun. I'd intended to land her right next to my feet, but, overshot because she floats like a Zeppelin. Had to duck
(no audio, due to being a Hubsan H107C quadcopter 2MP camera...on a hat)

Scubby (2 min 19 sec)

Posted by Slider2732 | Jan 13, 2016 @ 11:37 PM | 1,841 Views
Following the idea to scan in, enlarge and build a wooden desk ornament type of kit plane from foam, this is my R/C version of a similar model.
The build plans for mine, were in a Harbor freight $1.99 model. How neat if such a thing could actually fly R/C and, other folks wishing to build would have the plans right there in the box. Plus, the plywood version of course, to practice the build.

Specs:
Wingspan is 11"/270mm
ItCanFly 900MHz transmitter and receiver
Homemade rudder actuator of 360 turns, 40AWG, piece of HDD for magnet.
Motor and gearbox from a Silverlit SingleWing.
150mAh 3.7V lipo
Weight is 22g


See video description for a link to GrandadIsAnOldman's original foam build.

The GrandadIsAnOldMan inspired biplane (3 min 9 sec)

Posted by Slider2732 | Jan 10, 2016 @ 10:06 PM | 1,484 Views
My build of the Micro F-22 by 'localfiend' from this thread:
http://www.rcgroups.com/forums/showthread.php?t=2487051

10" WS
AR6110E receiver
10A ESC
2x 3.7g servo's
250mAh Venom 2S
Unknown silvered 180 type brushless
Firebird Phantom prop
AUW 73g

Noting the heavy bare airframe weights of approx 30g for Dollar Tree foam with the paper left on, I decided to take it off and use packing tape for strengthening. That route, allowed the use of 'heavy' 3.7g servo's and the 17g motor.
Also added, was a piece of foam for launching, sitting behind the prop. Couldn't work out how to throw it otherwise !
The build has the front and rear surfaces connected by single linkages on each side...very novel and why i decided to try the build.

It goes great ! very precise control, plenty of power and is one aircraft to turn to if there is a bit of wind at the field.
I doinked the nose on the maiden, rebuilt that and have added a piece of BBQ skewer from nose to motor.

Here's some footage of the maiden, quite gentle but showing the maneuverability.

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Posted by Slider2732 | Dec 30, 2015 @ 12:09 AM | 5,034 Views
This is a mod to extend flight times, reduce weight and clean up the look of a Hubsan H107C quadcopter.
Devised by good friend Aeronaught, it takes about 30 minutes.
The way I did it, needs a sharp hobby knife, small cross head screwdriver, a little piece of foamboard and some foam safe glue.

The cameras in these quads are 2 megapixel and i've found far more use for them on a hatcam or attached to other aircraft. So, we can save 4g that way straight away.
After removing the 2 screws, 1 on each side of the lower part of the quad, the plastic body pulls away.
4 screws to the sides of the battery area then allow access to the camera. It can be removed by either desoldering the 2 wires, or by using the knife to gently cut the wires at the solder join.
Now, we remove the red LED's and 1 blue.
The LED's come out easily enough, using the knife to carefully cut the wires at the circuitboard end with a little downward pressure. Then each motor pair of wires lift up and a push of each LED up and out each time releases them.
The 4th LED just has to have the motor wires lifted and then it can be passed down under the body. This is the one that will now poke out through the old camera lens area.
The hole where the camera lens went, is now replaced with a piece of foamboard (i used black, but white can be Sharpie'd to any colour you want)
A hole in the foam can be made using the same little screwdriver and then the foam can be glued in place with Aleene's or another foam safe glue. Put the LED through the hole.
Replace the screws and test.
Now, your quad will have 3 blue lights to show the quad direction, 2 on the top and 1 in the middle/front.

As reported by Aeronaught, his flight times have gone up from a meager 3 1/2 minutes and thereabouts to at least 5 mins. A great improvement !
The camera is now able to be used for other purposes, battery amperage draw is lower and the quad is just as readily flown with correct orientation.
Posted by Slider2732 | Dec 16, 2015 @ 10:16 AM | 1,904 Views
With reference to the FAA ruling.

Build models that just fall short of the legal limit*
No rules, no red tape, no fees, no registering, heck you don't even have to say it's for The 249 Club !
The idea being to simply fly and enjoy.
Practically, models should weigh between 230g and 240g, because we all know that the scales used by authorities will be perfectly calibrated in one way or another.










*
SEC. 336. SPECIAL RULE FOR MODEL AIRCRAFT.


(a) In General.–Notwithstanding any other provision of law relating to the incorporation of unmanned aircraft systems into Federal Aviation Administration plans and policies, including this subtitle, the Administrator of the Federal Aviation Administration may not promulgate any rule or regulation regarding a model aircraft, or an aircraft being developed as a model aircraft, if-(1) the aircraft is flown strictly for hobby or recreational use; (2) the aircraft is operated in accordance with a community-based set of safety guidelines and within the programming of a nationwide community-based organization; (3) the aircraft is limited to not more than 55 pounds unless otherwise certified through a design, construction, inspection, flight test, and operational safety program administered by a community-based organization;
(4) the aircraft is operated in a manner that does not interfere with and gives way to any manned aircraft; and (5) when flown within 5 miles of an airport, the operator of the aircraft...Continue Reading
Posted by Slider2732 | Nov 19, 2015 @ 11:44 PM | 1,785 Views
A few years ago, I built a plane with no conventional wings.
It was a variation of Willard Custer's Channel Wing concepts.
I wanted to build one slightly bigger, using the same sort of motors. It would be 2 channel, but featuring an actuator rudder mod to the ITC receiver.

Total weight: 1oz, 27 grams
Length: 13", 33cm
Wingspan: erm, 0"
Receiver: 2 channel Interactive Toy Concepts (replacing an Estes due to low range)
Motors: Cut down ducted fans from a Radio Shack Twin Turbine, with 6mm motors
Rudder modification: 450 turns of 40AWG, neo magnet, wires connected to +Left and +Right of the motors
Lipo: 1S 150mAh

More info about Willard Custer and his amazing lift principles:
http://www.pilotfriend.com/photo_albums/potty/17.htm

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Posted by Slider2732 | Nov 02, 2015 @ 12:27 PM | 1,893 Views
Those of us with now aging 2 channel birds from the mid 2000's are likely finding that the lipo's have busted. Nearly all toygrade models house the lipo's within the foam shapings. In other words...the planes are toast.

I decided to resurrect an ITC F-22 2 channel aircraft and by a probably unconventional method - to Bahoma the battery connections !

The aircraft had been gutted, back in the golden oldie days of modding, by cutting the thing apart and re-using the components. So the circuitboard was put back in, the motors hooked back up and then the mod was done for the lipo.
As it happens, a fave route back then for these was to slice off the nose. That enabled easy access of the parts. As bad luck would have it, the nose was missing, so I used one from another similarly fated F-22. The battery area was now exposed outside the canopy area...hmmmmm
By attaching small round neodymium magnets to the relatively thick power wires, they could be bent to approximate the connections of a small 90mAh Bahoma fitted lipo.
It worked great...a fresh battery being able to be plopped right in there and the connections simply 'snap' on to the lipo for flight.
CG was a bit off, so a piece of Blu-Tak sits in front of the lipo.

Altogether, it looks so wrong, but flys so right and there need never be an issue with a dead internal lipo ever again.


Flight video - no sound due to being on a homemade hatcam that doesn't have a microphone (Hubsan X4 2MP camera). Shows the flight traits well though, especially fullscreen in HD.

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Posted by Slider2732 | Oct 26, 2015 @ 12:50 PM | 2,188 Views
I've been building supercapacitors from common kitchen ingredients and, now with the weight down to 1 gram, they are ready for some simple freeflight trials. Grpahene is on the way, for the next stage of these caps...looking to emulate the cells made by Robert Murray-Smith, TinMan and Lasersaber - but for R/C use
Details of construction, run time tests and a step by step build video can be found on my YouTube channel, username Slider2732.


The following was written for an very good friend of many years, who is following along with the developments. But, it makes sense to keep you guys in the loop too:

Carbonacci Flight Trials

Carbonacci - carbon because of the wing structure and there being carbon in the flight cell, bonacci from Fibonacci because i'm hoping it will be the first of a series.

Yesterday evening saw the first ever flight trials of a personally homemade supercap.
But, let's not be grandiose here, the final result was borderline for the 5g build, or at least the aircraft itself was pitchy as hell and glides were hit and miss even when not powered.
I have to strengthen the wing somehow due to flexing, which, at only 5g for the whole thing is disturbingly rubbish.
The Carbonacci is a rebuild of the one I made a couple of weeks back. it just seemed to be the right platform, with its floaty nature and slow performance. But, by the end of those original flights, the wings had proven to be a bit too flexible and i'd shelved it.

The ITC gear came off and the 2x...Continue Reading
Posted by Slider2732 | Oct 14, 2015 @ 10:17 AM | 3,227 Views
In talks with a good friend, we were looking at uses of the famous Rolls-Royce Merlin engine. He discovered that a testbed for the engine was found in what many may consider an odd choice...a Hawker Hart biplane !
The Hart itself apparently proved itself so nimble and effective in testing, in flight trials with a Rolls-Royce Kestrel V12 up front, that the design was developed into a fighter and renamed the Demon.
https://en.wikipedia.org/wiki/Hawker_Hart

Well I just had to have a go at this lol. The pointy nose was a good reason for one thing, nearly all else from the 1920's/1930's having radials.
Scale bipes are not something i've any experience with whatsoever, which was another good reason for trying it.


Wingspan: 14 1/2", 370mm
Length: 12 1/2", 320mm
Weight (with 250mAh lipo): 1oz exactly, or 27g
Receiver: ItCanFly 900MHz

Controls and throttle, elevator and rudder.
The prop and gearbox are from a Silverlit SingleWing, with a replaced motor now, which made all the difference !
450 turns of 40AWG from an old relay for the rudder actuator.
Similar for the remote actuator for the elevator, but with finishings similar to ItCanFly or Planraco remote actuators.

A fellow called Bill Bailey saw the bipe in the background, of a recent actuator building vid that i did. He expressed interest in seeing it fly, so the vid was done of this in the air.

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Posted by Slider2732 | Oct 07, 2015 @ 10:55 PM | 2,308 Views
Fun project !
I couldn't afford one of the Air Hogs new X-Wings, so built one to a similar size.

Take out tray foam for the wings, Dollar Tree foam for the fuselage (2 pieces wide)
ItCanFly gear
7mm motor with Hubsan X4 quadcopter prop
2x homemade Plantraco type remote actuators for the elevons
AUW 23 grams

The concept for the build, was that the wings can be thought of as 2x flying wings, 1 with dihedral, 1 with anhedral. They were sanded with that in mind, with opposite washouts etc.
The canards are similar to the Air Hogs variant and are the first i've ever put on anything, so that was a good experience also.

A trick it can do, is to spin madly and then recover, as shown in the vid. What happens, is that from some backyard freeflight testing, it was found that the CG being too far back with make the X-Wing spin around. In R/C flight, holding the elevons up for too long causes a stall, so the X-Wing spins around.
That was used to good effect (fortunately captured on the camera) when it did it, spun madly to the ground and landed on it's tail like some kind of gymnastic maneuver lol !

Some pics and the flight video


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Posted by Slider2732 | Oct 02, 2015 @ 05:49 PM | 3,158 Views
I've always enjoyed building micro models...mainly because whatever mischief they get into and whatever sort of crash they find themselves having, they can be picked up and flown again immediately.

This one, the White Spitfire has been great fun.
Some build pics, in flight pics and a flying video are below.

A 3 view was found of a MKV Spitfire online, not sure where from to be honest now. It was then scaled around to fit on an A4 sheet for printing out. That reworking is included below.
Dollar Tree foam for the profile fuselage, take out tray type foam for the wings.
Receiver: ItCanFly, only motor and rudder.
Motor: 7mm, though 6mm and 8mm were tried. 8mm saw it go vertical ! with a great 40ft or so loop...and the thing has no elevator !
Prop: Hubsan X4
Actuator for rudder: 500 turns of 40AWG + neo magnet in the rudder itself.
Lipo: 90mAh Bahoma
AUW: 12 grams
Wingspan: 12"

Initially, there were rudder problems, but the change to blenderm from floppy disk material sorted that out. I also slightly oversized the rudder.
With all the motor swaps, the nose ended up less than ideal, but it goes like a dream, for a 2 channel.
The Hubsan X4 'spare' 2MP camera was fitted to it, for a fun photo recon mission..which was successful. Simply to get a pic of me flying her around (Snapshot still from the video).

This Spitfire featured in a recent video, where I put the camera on an old baseball cap, to get footage when at the flying field. It shows the traits well
Skip to 4:00 for the flying.

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Posted by Slider2732 | Sep 30, 2015 @ 09:39 PM | 2,181 Views
Back by no demand in particular, i've decided to start up my Blog again.
A lot has happened over the past couple of months and a record of it would be good to look back on. Hopefully interesting to you folks too.

Beginning with - flying on 1 aileron.
I've got near zilch history with ailerons. The first thing ever flown with them, was about 2 months ago, the ItCanFly Canard aircraft. However, after experiencing rolls and other traits, the bug bit and I just had to try it out with a scratchbuild.
2 larger planes had been built, but it's far easier to carry a 16" foamie in a plastic bag to the local field and that's what seems to have happened. As such, this one became my daily flyer of the past week and first homemade aileron aircraft to fly.
(Click photo's for larger versions)

A bit of pencil doodling:


Then the plan was mostly ignored and the scratchbuild was on its way.
Material used was Dollar Tree foamboard.
Wingspan 16", length 14", high'ish wing and no dihedral.


The fuselage went well, especially the turtle deck. The fuse is a V shape, which would allow for a receiver to go inside, the linkages to protrude from the sides and elevator actuator wiring to run inside. Also motor mounting would be easier and cleaner than say a profile build.
...Continue Reading
Posted by Slider2732 | Aug 19, 2013 @ 12:42 AM | 6,649 Views
The Hubble space telescope has taken a seemingly surreal picture of the comet ISON, incoming and apparently something that will be visible with binoculars in November.
The image has caused quite a stir on a conspiracies messageboard that I looked at this evening (won't mention it, but it has 3 letters and i'm not a member there). The link to something was what I immediately thought of, for the 'what if'.

The idea, is that you go here: http://hla.stsci.edu/cgi-bin/display...430+WFC3+F606W
It's the .edu site where such Hubble pics can be viewed and inspected.
Zoom out a bit (using their controls) and find the comet, mid top to the right a bit, with tail pointing left, quite easy to find it.
Now, zoom in a bit to the comet.
All normal right ?
Now, use the 'Darker' function 3 times.
What do you see ????

Here's what I see !




Which reminds me of one of these !



And here's a 3-View:
...Continue Reading
Posted by Slider2732 | Aug 02, 2013 @ 08:30 PM | 5,567 Views
After 2 years of sitting on a shelf, it was time to take the 20" StormRunner out for a flight.
The motors needed a drop of oil on the shafts, due to the Oklahoma humidity rust damage. An upper wing fence needed to be replaced (at the field) and the foam body is a yellowy brown from being stuck up a tree for a week in summer 2011 !
The lipo was also changed for another 300mAh 1S cell.

But it still goes
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It's built from parts of an Air-Hogs mini Storm Launcher.
27MHz
2 channels
Differential thrust steering
Front edge flaps were added in late 2009, to test slow speed stall capabilities and it's sat with them in place ever since.
Posted by Slider2732 | Jul 20, 2013 @ 12:26 AM | 5,997 Views
This is a flight of Eteel, the 18" wingspan version of a smaller model I designed back in 2011.
It's a design that noone else seems to have done...Richard Keller worked for the Horten brothers in WWII and was employed to calculate wing loadings etc. He was an excellent artist and came up with a tailed version of the now famous Horten IX.
See July 2011 Blog posts for construction details.

Using a self wound CD-Rom motor salvaged from an old drive, dollar store foam and elevons as control surfaces, it always did fly pretty well.
It has sat since early August of 2011 and even uses the same Hobbyzone 2S 300mAh Li-po battery as back then.
Neither it or I have flown since (been doing electronics projects), so today was going to be a ginger fingered time of it !

Other notable spec perhaps is the Spektrum AR500 receiver - no casing and lightened to 3 grams.

I was delighted with the flight
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Equipment:
AR500 receiver
2X JR-SM8 servo's for the elevons
CD-Rom motor - all is stock except I rewound it as 20T Wye
GWS 5x3 prop
2S 300mAh lipo
Posted by Slider2732 | May 14, 2013 @ 11:11 PM | 10,234 Views
The builds over the last couple of weeks have given rise to a competition idea.
To race along a 10ft (3Mtr) flat straight track in the fastest time.
International competition is the idea.

With the Blue Dragster (in a post below) having won the first race of 4 self made cars, it was time to build something faster !
A new build of lighter and hopefully even faster Dragster.
People may think that a 100W solar panel would be the way forward..but...would such a panel have too much weight and crawl the vehicle off the starting line ?
'Smallest Car in the World' panels have been used throughout builds so far. Only 0.5V for voltage but 150mAh of current !

How did it do ?
Answer is here:
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The Single Panel Racing competition is open to anyone and everyone.
The basic rules are:
Single solar panel
No battery
10ft (3Mtr) straight and level racing track
A clock to be shown (to avoid claims of editing)

YouTube videos should be uploaded and the link messaged to me in a YouTube PM.
Updates of the leaderboard and highlights of the submissions will be summarised in videos on my channel at regular intervals. Plus, updates will be given here on my RCGroups blog. That way, everyone knows what to beat !

A solar panel manufacturer would be an ideal sponsor and/or prize giver for the winner at the end of this years competition - End of September 2013.
Know anyone ?


Posted by Slider2732 | May 12, 2013 @ 02:14 AM | 8,943 Views
The first Single Panel Solar toy Racing of 2013

4 little cars that i've converted or built from scratch, powered by solar and a green end 6mm motor.
All use the same solar panel, from those little Smallest Car in the World's that you may have seen. The solar panel puts out 0.5V and 150mA.

The idea, is to perhaps encourage folks to build and race such cars, using just 1 solar panel of any size.
100 Watts could be the size, or one of these dinky ones. Any single panel.
International racing would be to compare run times, by showing YouTube videos of the cars themselves from around the world.

A fun video, to hopefully start other peoples builds rolling:

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Posted by Slider2732 | Apr 27, 2013 @ 10:36 PM | 7,032 Views
Made from spare car parts, a finger nail file and white glue, this is my Solar powered Dragster.
The idea, was to make as light a vehicle as possible, with some size about it and to look like a Top Fuel style 1/4mile Dragster.

The motor and gearbox are from a 'Smallest Car in the World', also the solar panel and the front wheels. The blue spoiler and cockpit canopy are from a Micro Terrain Titan shell, cut down with a Dremmel and then sanded. The main frame is a fingernail file.
The faux suspension on the blue shell was removed while cutting and forms the front bumper.
The rear axle was made from a sewing needle, where the ends were snipped off and wire outer insulation was used to give the correct spacings.
Depending on how it goes in the sun, it may be fitted with a Turbo Boost nitrous oxide canister...or, in other words, a capacitor across the motor.

Happy with the 10g final weight


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