|Jan 20, 2009, 07:44 AM|
RC Night-Kites night fliers
I wondered if youve seen these RC kites from singapore.. http://www.goflykite.com/
From the look of them they derived from the IFO carbon fibre method of construction and control... now they come in a variety of shapes and are equiped for night flying..
some of them fly very well and look even better all lit up at night..check out their website for some nice videos...the best video being the new product test video on the gallery page
Isnt that just too smooth....wow
you can guess my next project...the LEDs are on order and I am checking designs..and layouts for a home built clone
from reading.. their prices are high.. but are not quoted on their site.
Their simplest design is similar to the IFO but stretched... more like a flat drenalyn but with rounded elevons
|Jan 21, 2009, 08:37 AM|
There are quite a few videos of them on youtube... it looks well setup for their flying..what could be nicer on a warm and quiet night?, that and a cold beer.
Definition of a NightKite Like the Kites of old, an open structure fabric or film covered, with lights
I had some luck and found my old IFO whilst looking for some covering... this is now being revamped and modded.. extended in length.. and with extra CF rods fitted to give more sectioned pannels so that I can have a nicer color scheme.
Ive used a heavier main fuz stick and fitted a tube mount for the motor.
the LEDs have come..extra fast delivery from Maplins, but they are pricey..
I am trying to decide whether to fit a rudder or not at the moment..
Edit not fitted
If you use google sketchup download the zip file , then using sketchup you can resize the designs in a matter of seconds
If you want to build the NK1 I would sugest you modify the design slightly by moving the front cross piece back by about 1 1/2" to give a bigger and better space for fitting the motor and prop.. as it was on the IFO it only just fitted
Ive just made this modification myself, now theres room for the motor to be fitted to the front part of the 2 part tube mount, and the big aluminium prop addaptor and prop.
EDIT2 Remade the NK1 plan 28 feb 09
new pic added showing areas of NK1 kite 6sqft 2.5oz sqft
Plans.. I will keep posting here as they are done..or updated
EDIT http://www.rcgroups.com/forums/showthread.php?t=1033223 is the nutball nightkite build...highly recommended
depron builds will work well if they are like the nutball
|Jan 21, 2009, 08:55 AM|
here are the gofly kite pics.. none are too complicated ..the only problem is where and how many lights to fit..
The simplest design is very similar to the IFO of old, but slightly extended I think..
edited off by request
|Jan 21, 2009, 11:07 AM|
North Kent, England UK
Joined Jan 2005
Looks good Dave, shold be crashproof too. I have just dismantled an old umbrella, mainly because I thought the struts might come in handy, now the covering might be useful too.
I will be following your progress.
|Jan 21, 2009, 11:08 AM|
Will these glide power off? Or do they need some power on and a little AOA to maintain flight?
I wouldn't expect to find them to have a great glide ratio but am sort of wondering if they are of the variety that falls out of the air when the motor stops.
|Jan 21, 2009, 11:33 AM|
|Jan 22, 2009, 04:13 AM|
Yes I ordered from maplins ..then found better info in the thread on lighting..oh well it was too late to cancell, but they got here the next morning.. very fast delivery..and they are all high intensity....
Thanks for the info I just ordered some more from that ebay shop ...that will give me loads to play with...
looking at the videos they use quite a lot on their planes
Heres where ive got to..
Pic 1 ..... The original IFO plans
Pic 2 ..... 12" extended on the outside rods of my old IFO...the rear spar/hinge line moved back. ..A new fuz rod with a tube mount. A couple more Cf rods and bits tied in to make a nice patern.
I used an original IFO mk3, removed the rear cross peice. then extended the sides. I refixed the cross peice at the sides then replaced the fuz with a new thicker tube. I then added a couple of curved 2mm rods to make a fancier pattern ( not neccessary, for decor only)
Pic 3 ..... Two panels covered with a semi transparent white nylon.
Pic 4 .....main covered
I went for the semi transparent covering so that any lighting will shine through as well as illuminating the surfaces..its only problem is that it needs sealing..
Edit 28 feb 09... best cheap fabric.. a dressmaking polyester liner material.. comes in loads of shiny colors and will hestshrink with hot air.. it shrinks well then relaxes a bit leaving the surface free of wrinkles but not overtight
umbrella fabric especially off the big sports brollies should be good..and free if you can find old discarded brollies
to do for airframe.... remaining panels willl be covered with a semi transparent yellow
From what I remember flying the IFO they glide about as well as any flat plate would do, and prefer to have power on.. That said the IFO was my first succesfull electric flier and with its old brushed motor didnt go too bad.
dimensions span .... 34" ....860mm
length .... 35" ....885mm
weight at pic 3 ....3.5oz
COG 170mm from front cross bar/engine location
|Jan 22, 2009, 05:15 AM|
Some more info ...this page gives good basic wiring info for the LEDs
The Mugi site also has some info.. only using a few lights theyve got good results
Here are some good places for lights with fast delivery
|Jan 22, 2009, 08:44 AM|
I've got one of these, it's a different brand but basically the same, less leds by the look of it though.
I got mine from ebay as a rtf package. Out of the box it flew terrible, due to the electronics. It came with a brushed motor and gearbox with an all in one rx and esc, 900mah 2s lipo. The control was horrible. no epa, so it was full throws all the time and the servos had about two steps between centre and full throw.
I got about 2 flights and the esc/rx caught on fire!
So I replaced all the electronics and using my own TX.
Running a towerpro 21t (heavy but I used it because it is a similar weight to the stock motor and gearbox) 2s lipo with 9g servos and now it flies really good, I like it a lot.
It will fly high alpha in hardly any space at all, I fly it in my small backyard no worries.
I run the leds through an old 5A brushed speed control plugged into the RX so I can control them with a 3 position switch on my TX. Off, low brightness and full brightness.
I've got some pics and video here somewhere Ill try and find them. Looking forward to seeing how your version turns out.
|Jan 22, 2009, 02:35 PM|
Hi Dave & Tas
R2 Hobbies have just started to stock a "3 Channel RC Carbon Fiber Airframe Zlowest Indoor Flyer" for US$42.69 including brushless motor
as it only weighs 487 grams ready to ship it shouldn't cost too much to get it.
|Jan 23, 2009, 05:38 AM|
Thats the one that started me looking. Looks like a butterfly...The email advert for it has links to the goflykite videos. and its own video shows its nice performance.
I do prefer to make my own planes however, already having all the bits and peices I need..the CF framed kites really couldnt be simpler and the rods can be reused again and again. I just bind joints with some dacron type fishing thread and glue with cyano.. each joint only takes minutes and is very strong..
I must admit to copying designs or using them as a basis for my own builds. But even when building from plans I always end up changing the design in some ways.
With these flat CF kites you can use your imagination and try any fancy idea shapes that come into your head. you can easily test glide the framework to get your COG correct with no fear of damage.
Then just add your radio and engine
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