Aeronutz News Letter No 51b. November 2002You are invited to the next Aeronutz Fun Fly on Saturday 23rd November 2002. 5pm until 11pm. Parklands Centre, Wigston Rd. Oadby. £8 per flier, Bring a warm jumper as the heating will be off, tables are provided. All fliers with models over 10g must be insured. Remote control machines must have semi scale appearance - on sticky looking things please! If your are unsure please check before travelling. Max. Weight for any model will be 80g. This would have been lower but we are pleased to see the super scale Falcon kit's balsa machines from Chris at RCS Technik.Here are some nice planes seen at the SAM's models fun fly at Watford ... more later onPeter, Richard and Chinese rocket powered fighter eh ? type unknown ...... 3 of Peter Blackmore pics taken at SAMS's Watford fun fly.
The Constellation is carved from white foam similar to the Blue FloorMate 2000 foam (but white Ed) It uses four rubber motors and yoghurts pot props, excellent art wok and super flights from hand launch. The Cambera and Chinese jet are designed as for outdoor use and are stick and tissue, rocket powered, perfect covering and artwork! If these guys come over to Oadby we will try and give plenty of advanced notice - you have to be there!Now read this !
There are lots of pictures in this months news letter so read this part while they are loading up down below ...War Effort
The war on weight continues with the use of smaller lighter motors.
These are the new pager motors, which we hope will reduce the weight of remote control planes to about 15 grams (the weight of all the red Smarties in a 25g tube Ed). Hopefully we can also start using wall foam wings instead of 2mm Depron, the flying weight should then come down to 10 to 12 grams. This means a mono plane with a span of about 11" which should have a naturally small turning circle so it can be easily flown in school gyms (four badminton courts).
Our super high tech. design consultant Mark, has added a blob of blue tak to an Ikara Zero rubber power Depron flier to see what speed it would fly at when it has a flying weight of 8g. Not too bad at all as it turned out, but it does have a bit more wing area than the P51d. As the Ikara's are sheet Depron it would be easy to make a similar machine but a little bigger me thinks?
Picture shows 40mA polymer cell, geared pager motor, Z Tron infra red control system (Rx chip, one sensor and transistor for the throttle) and Ikara Zero rubber power F/F Depron flier .... an interesting thought ! Testing continues, 40 x 5 = 200 hint, hint.Peter Frostick has made a mini (12" span?) wall foam, T tail glider with 12thou rubber power and mini prop. He says the little motor glider took to the air last night to 'rave reviews' --- 50 seconds flights and right up in the steelwork. Hint: don't put the motor peg too far down the fus: it causes rubber bunching! other than that,12 thou motor works well with 2 1/2" prop; at a total weight of 0.75 grams. Mark has some patterns for his version (called "Mistral"), Peter added a music wire stiffener to his wings which did not seem to add any weight is the 0.75g total is anything to go by!!
Peter is also making a mini Pitts Special like Simon's blue and white free flight rubber machine. It uses the patterns developed by Chris is the US.Speaking of American's, good to see Gordon and Chris making some interesting mico RC planes. Gordon's Fokker D-VII is covered with tissue that has the camouflage printed onto it using a colour ink jet computer printer. It was designed for Ni Cd cells but greatly benefits for the new lighter Polymer cells.
WINGSPAN: 13.5 in. WING AREA: 46 sq. in WEIGHT: 22.4 grams
WINGLOADING: 2.42 oz./sq. ft. RADIO: Dynamics Unlimited RFFS-100
POWER SYSTEM: BitCharger 2.6 motor, Didel 5:1 gears, and Kokam 145mAh
lithium polymer battery SCALE DETAILS: Printed tissue
Janne Corsair vids
Click here for the link to Tyson's video page where you will see a few vid clips of Janne's 18g. Aeronutz design. 14" span, Corsair (same as mark's but 4g lighter and more powerful !) Take a look at the hall too, big up the Janne for renting a place like that! Whoopee.It seems the latest Ikara profile rubber power machines are being supplied with black coloured props not like the original white ones. These look better on the ground but the white ones did look great in the air when they "strobe effect" with the high frequency lights. Also the Spitfire's artwork seems to look a bit better. Maybe these are a new production run?
Hello to rocket scientist John, who came for a look at our last fun fly. He is working on the new generation of high altitude jet engines. They will fly at about Mach 7. He said they have a flew teething problems - If only they had asked Bernard - he invented an air breathing rocket engine similar to the HOTOL's when he was 12 years old (1895? Ed)
Bernard explains "Its not at all difficult, you just get the plane flying really fast, squash the air into the engine, then set fire to it, I can't see what all the fuss is about, mine did 8746387 miles an hour in 1936 - but I ran out of squeeze bottles ... (said in one breath, Ed) Tut tut, young people these days ...Top indoor designer Janne from Finland will be in England during the week after our next fun fly (Sat 23rd) so he may come over earlier and fly at the "home of foam"? He has just rented a hall about the size of Belgium for his first fun fly - way to go Janne!
Mind your head - Bernard's two cell planes are now much smaller and don't hit the roof causing them to zoom about all over the place like they once did. He is using two 70mA NiMH cells and sometimes one 50mA NiCD. The props are either orange GWS 70mm ones or similar but grey ones from Flitehook. These props are fine pitch which helps reduce the current load on the cells, particularly helpful with the 70mA NiMH cells. These planes are still Depron but now weight 10 to 14g flying weight and are about 12” span.
Mark has some new 5 Farad, 2.3v Super Capacitors from nuinTEK on order. They will be available at £3.50 each the same as the olde Gold Cap capacitors we had been using. The Super Caps are about one third the weight of the Gold Caps but seem to produce the same performance. As with Gold Caps we charge them above their intended voltage. Capacitors are good for free flight power as you get a big burst at the start followed by a steady power glide. The old Condenser Planes used capacitors instead of cells. The Condenser planes also had a special motor with more resistance so they did not run the cap, down quickly like the KP00 does.
Bernard's simple testbed for the new Super Capacitor and 5.8 Ohm M2 motor. Cap and motor are ok ....
Mark has bought some surplus motors from the US which are the same size and weight as the KP00 but have about twice the resistance (5.8 Ohms) so they use about half the current. These are ideal for the super caps and would also be good for 20 gram micro remote control planes. They will be sold for the same price as the KP00 so we don't undercut anyone (£4.50), profits to Aeronutz hall hire fees funds.
In the event it stops raining AND its not windy, you could get some local fun flying outdoors by using a Super Cap and 5.8 Ohm motor in a scaled down competition plane? They take about 30 seconds to charge from three large rechargeable cells. Maybe a little 2mm Depron machine? Could be able to use geared pager motors like Simon did with his twin motor twin Pioneer? So many possibilities these days
Looking for 2mm Depron? Yes we still have some of the soft and bendy 2mm Depron. Graham has some super fine ultra flexible wire too ….If you have a Mk 3, Z Tron infra red transmitter and you are not using it them we have folks looking to buy them or we could buy them off you ?
New for our next Fun Fly on 23rd Nov
Ray has a new ducted fan infra red control plane. The fuselage is carved pink foam with one DIY ducted fan which runs from two 140mA lithium cells. Looks really nice too
Sit where you like, except between Mark and the corner where Flitehook go as Mark wants the new fliers near him (and away from Bernard Ed)Graham has some new voltage boosters that weigh just 0.3g !! The maximum output current is 300mA when boosting 3v to 5v (for Lithium cells) Efficiency is about 70 to 80 percent depending on how hard you make it work. Should be good for powering one or two pager motors - don't go mad though, remember that they work on Watts (current x volts) in less the inefficiency = Watts out. So for example if you want 300mA out at 5v (greedy !! Ed) that makes and output of 1.5 Watts. So the input at 100 percent efficiency would be 1.5 Watts divided by 3v = 500mA plus say, 20 percent ineffeciny = 600mA on the cell. Most Lithium cells operate at a maximum current of five times thier capacity, so 600mA divided by 5 = 120mA Hr cell minimum. And they get HOT ! See is web site including the Didel gears and Kokam 140mA hr lithium Polymer cells. See his web page for more details here
The next Aeronutz fun fly after 23rd Nov is 4th Jan 03
Herding Cats
Last month we had 9 infra red fliers in the hall so Mark tried to get them in one area to avoid clashes - we did not have any problems. If fliers have any problems with the hall or tables etc. please tell Mark or Simon as our relationship with the hall management requires careful consideration by someone who knows our 8 year history! Where else can you fly for 6 hours in a big hall?At our last fun fly ...
John had a nice new Japanese ornithopter which uses birds quills for the spares, a tough but light and bendy material ideal for flapping about! Melton John had some interesting wall foam flying discs (Tadpole) and a super biplane flying wing !(Mystery Pusher) It flew very well and had a simple stick of balsa out the back for the rubber motor fixing. It looked really great in the air
On the left - Tadpole, right Mystery Pusher
If you are thinking travelling a long way to come to one of fun flying events it might be a good idea to let us know and or call Parklands to check all is well? If you get back at 3am tell the wife you have been out with your girl friend, otherwise she might think you are a bit wired?
Maybe we should start a web page just for Peter planes ? Or maybe a shrine?!?
Another rubber power white foam carving .... clear for take off
Excellent digital picture of Mark's latest Corsair (free flight Ed) by Peter Blackmore, he can come again!I think this was Richard's Spit, note the slight imperfection on the LE where a table bit it
Peter's Co2 put, put, put, plane and what a great plane to put a Co2 motor in
My favourite of Peter blue foam planes, this one just looks so natural, it just feels like an Me 109Peter says this Comet was a fast little flier - much like the original, I haven't seen either fly although there is a newly refurbished full size one at Old Warden flying museum.
Don had a super black, wall foam, rubber power, Stealth Fighter flying down at SAMs Watford fun fly. He has a nice drawing of it which he swapped for Mark's Corsair plans so hopefully we will see a Stealth over Oadby soon - or not seeing ti as the case may be. It flew very slow and uses Ikara prop.
Vic Bowden's table of free flight, rubber power, foamies ... nice. He said the little orange racer flies, I would think it wants to turn left big time!
Peter's Lanc resting .... its quiet olde now but still looks great in the air
Peter's white foam and Co2 motor marvel. A little spray sir? Put, put, put motor again. I have seen him fly this in a hall full of kids !
Peter's photo of a super little F/F, stick and tissue bipe, looks like an Ikara plastic prop?
IMPORTANT NOTICE !!A Few pictures for our October 02 fun fly ...
We are about half way through this news letter so I suggest you stop for a coffee and stretch your legs so you don't get blood clots down in you pinkies ....
What's happening ?
Aeronutz Fun Fly - Saturday Nov 23rd
Ray with new ducted fan jet and twin motor steering Mosquito
Both Z Tron infra red controlled .... well as controlled as they ever get!
The new jet was zooming about the floor at Nottingham so we hope to see the little chap off the ground at Parklands on Saturday, although looking at the size of those wings - it its coming your way, run ! It uses two 140mA polymer cells, Ray's DIY mini ducted fan, low current motor, Depron wings, coil actuator rudder, dihedral (allways a good idea and cheap too Ed)There is always a temptation to peep up the ducts of a jet .... The control system is only on the top while Ray teaches it to fly.
Ray's ducted fan used in last
years machines. His latest
ones are one inch diameter
Action from our last fun fly at Parklands Oadby ...
Good to see Melton John's most excellent Mig flying again, rubber power (at the moment Ed) Jets can be tricky to trim, they like to fly at just one speed ?
This one is super when you see it up in the steelwork, there is no mistaking what it is !
Ray's Z Tron infra red controlled Mosquito with two direct drive "B2" style motors
flew very well with nice banked turns. Uses a lithium cell. No gears means it flies silently
super machine. Uses just one infra red sensor on the nose facing upwards
Little stick and tissue beauty here, could do with a thinner prop?
Andy's Co2 powered remote control plane .... developments continue
put, put, put, put, put
Graham could not get his new micro R/C bipe to lift off ROG despite it going quiet fast ...
Mark suggested bending up the elevator - but it is three channel!
Anyway he fiddled with the motor thrust line and it flew very well using a lithium cell and quiet direct drive motor. Peter Frostick/Eric Hook elevator design. This bipe looks really small in our big hall.
Ooh! nice glider towing mister ...
Dr Chris's Beaufighter. Two geared pagers, lithium cell. Flew very well. Flew pretty slow too. Radio control me thinks?
Dr Chris and Paul Channon came all the way from Preston. Paul had a nice range of free flight rubber machines and an IR version of the Push E stick and tissue one cell plane.
Dr Chris had some new R/C planes: very nice twin pager motor 20” Beaufighter and a direct drive (quiet) Spitfire with B2 style motor at about 15” span. Both machines flew well being powered by 140mA polymer cells.
Beaufighter uses a coil actuator for the rudder. Two channels and I think 27 Mhz R/C from Eric Hook? Flew very slow and did super landings
DIY carbon fibre props, looks a nice job.
Excellent little rubber flier hiding in the corner of Paul Channon's fligthbox. Flies really slow and stable too.
Graham negotiates flight with last year's two x 50 mA NiCD delta
Infra red controlled. Did not fly due to damaged ESC transistor, new one fitted and all is well again.
Barry's little foam gliders, just some of them ....
John with super discs, no not designed by Armatageshanks!
John and Bernard's table. Bernard's new lifting body Burnelli is on the opposite
end corner. These are mostly Depron machines. No sign of John? that's Wigston John of course not Melton John.
John with new Japanese designed ornithopter, uses bird feather quills for spars, as good a material as you will find for the job. He got it from this web site click here
See DRAGONFLY 1 Kit, (quills), BIRDY 3 Kit,
Brian with Wright flier. Covering is "Rays" ultra thin foam sheet, power is one rubber motor with two belt drives, very nice and seemed stable enough
NEW indoor flier Steve from Oxford with his first micro plane. It is Z Tron infra red controlled, Lithium cell, "B2" motor, all blue foam construction 15" span Spitfire.
22g flying weight.
Yeah, it flew and very well too, as you can see! No gears so it flew silently. It did very nice tight turns and had a good duration. Thanks to Graham and Simon for test flying it.Mark has been trying his new digital camera. See our new web page with the first of many photos of olde Aeronutz planes - before digital cameras, let alone video clips! Lots more pics to come yet ...
Merry Christmas warm dry new Year
