You are invited to the next Aeronutz Fun Fly on Saturday 24th January 2004 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. News Letter Dec 03
- Mark takes first place in the first Reno/Schneider challenge
- Northern indoor Nuts came down to Oadby.
- Hello to the guys to came along.
- Hope everyone got home Ok, a long day for some ......
Ultimo ......... Rumpler Flies Real Floaty
Mark's Rumpler 6B Scouting Ray's position
for a torpedo run
The strange handling problem with the Rumpler was finialy resolved when Mark cut off the aerodynamic rudder balance. It was obviusoly causing the rudder to flip, flop about. The latter flights where nice, slow, roof cruising sorties. Flies really smooth now, just one notch of the throttle is required to miss the roof . The rudder uses a 200 Ohm coil and a large size neodium magnet, BIRD style, just a blip of rudder at the corners of the hall keeps her on patrol. Very relaxing, just like a hobby really. Although the Rumpler was used a scout I think a nice BIG proper torpedo between the floats would look good (not a tichy little torpedo like Rays). Anyone know how they held torpedos on in the German navy circa 1917? The British sometimes fixed the torpedo between the float. I wonder how they would launch it?
The flight motor's gears are on the back of the motor, pointing at the tail. I think Burty gets the credit for this idea. If you hit something the gears disengauge saving the front of the plane from much stress. This also allows motor tests in "neutral". The front of the floats are designed to break off easy, so they are easy to glue back on again. The Rumpler has wheels under the floats but it has never taken off from the ground due to dirt snaging one of the wheels and causing it to spin. It's supprising how dirty sports hallsss floorsss are. The German's painted thier planes much nicer than the allies, if you fancy swinging a paint brush you might like to check out the Hansa Brandenburge's who also did some nice float planes.
Thanks to Graham Stanley (Jaguar Graham) for the Rumpler photos.
John's new DH Chipmonk looked really nice, about 8" span, Depon and rubber power. Very tough but it will want to fly fast. Note the rubber is tethered at the back of the fusealge, so he will have to have a big dolop of weight on the nose to balance things out. His usual high standard of building skill.
Nice to see new indoor fliers Ivan and Gareth. As we see from the pics below thet are successfully swinging the paintbrush. Just three of many foamies brought up from Northhamptonshire. The yellow Jigglet was about 10" span. A full size blue and white Jigglet flew very well all night. Sorry did not catch your names, email your name and we will update the news letter The orange and black one is an ABC Robin
Ikara plastic props put to good use here
Very well regarded R/C Hawker Fury by Big Norman. Flew very smooth and slow. Quiet too. The paint work is very good, looked like a stick and tissue in the air. Uses just two 145mA poly cells and std. cheapo radio gear. Mainly 2mm wall foam
Regulars will instantly recognise the style here .... Depron and lots of bold colours
it's gotta be one of Barry's twins
Prolific Barry. He used a plastic bottle top for the nose on this one.
He turned the inside down to reduce the weight
Dave has a new foamie ........ It is a 12 inch span model of Eric Clutton`s FRED and it weighs 11.2 grams ready to fly. Built from hot-wire cut packing foam, about 1/32 inch thick, for the fuselage and tail surfaces. The wings are of built up construction with a flat bottomed section using the same type of foam (but thinner) for the skins and depron spars tapering from about 6mm deep at the root t about 2mm at the tip.
Motor is a Micro 3 with a GWS 2510 prop, Z Tron IR control and one 90mAh cell
12" span 11.2 grams flying weight
Below . This nicely built foamie Citabria is about 15" span from freebie plan, and is John's first small indoor RC job: finished at 1.00 AM on day of meeting!!! Mostly Depron, with RFFS 35 meg Rx and two Bob Selman actuators. Power is a Kenway direct runnng on one 140 mah Lipoly ----- Trim was spot on as built, and it flew immediately: he's very chuffed with it!!!!
Big Norman in Santa Clause mode! with yet another "West Wings" scale model rendered in wallfoam: this time the Westland Widgeon. RFFS and Bob Selman actuators again, but a geared KP 00 is used --- rather good Peter Smart style sprayed on rib effect we thought.
At half time Melton John spun Pauline a line about how he was a chef in a Sicilian pasta house
.... never, never believe anything anyone
tells you at an Aeronuts fun fly.
Barry's ......... eh, Japanses like free flight twin, looks nice
Another new plane by Dave, SE5 flew very slow, direct drive makes is really quiet.
Peter Frostick's 9" Fike flew well. Direct drive 5.8 Ohm motor for silent flight, mini car 27Mhz R/C, lithium cell, modified U80. Very nice pointing on the bricks too
Busy Bill's central fuselage section for his pioneer "Valkyrie" canard aircraft --- four spoked wheels!!!, and guess where the Co2 tank is hidden!!! The pilot's leather coat is made from brown paper: clever!!
Peter Frostick flew Bill's most excellent mini helicopter. It was excellent, even Bernard was impressed. Bill's helicopter is a half size version of Peter Frostick's 13" Chopstick design from Aeromodeller, and flies exactly like its big brother!! ---- a pity fixed wing planes don't do this too!
Here's Bill with magnificent rubber power chopper, the trick is
to get it to come down as slow as
it goes up
Peter Frostick's tiny rubber powered glider majestically circled up to the roof steels
Peter's competition winning Pistachio P51 and legdendary Spit. Both carved from foam
Not too sure what this was? You would think a Bleriot,
flew very slow and stable
Had lots of scale wiring all over it
Very impressive
Every cloud has a silver lining ........ pics via Wolfie. If you are not havign much luck with your indoor planes, well at least you don't have to explain your indiscretions to the boss
There is much more Flexinol development these days. Bob Bailey set the world on fire with his double actuator design that accuratley centres.
Bob Baily's Flexinol actuator has been addeded to the MW web page along with Jag. Graham's rotating tube rubber springs V tail unit. Mark's APPA actuator will be along soon following it's publication in January's Model Flyer International (7th Jan) Bob kindley sent one to Mark who has mounted it in a plastic box for now so folks can have a look at it and hopefully see it working via infra red.
If you are thinking of tinkering with actuators and or motor gears try and avoid using metals are they are relativly heavy matrials. Plastic tubes are available from the same outlets as the brass / aluminium tubes.
Mark in SA sends us his design sketch of a Flexinol torpedo release mechanism.
Mark's sketch of a rudder / elevator design with centralising......... maybe use orthobands rather than metal springs?
Peters, 35Mhz Spit, flew very well at our last fun fly. He uses a little up elevator, certainly makes the plane turn much tighter. Spit flew slow and quiet. Very smooth and reliable too.
Good to see Jeff's Tiger Moth returned to the sky over Oadby following some wiring hassles.
Really slow and smooth. Two channels Z Tron IR control. Noticably smaller than Mark's Rumpler. Silent in fligth due to it's diretc drive motor. Very slow, reminicant of a Bumble Bee
Blurry in flight pic. of Paul's Albatross
Ray's latest wall foam flying carpet. Very nice, very slow, silent Z Tron twin motor steering
David Deadman's article inspired Bernard to make a little Depron one
Uses two 5 Farad super caps
Bernard has lots of Super Cap powered planes flying now.
Big John Mack's Avenger flies very well
really slow,
we like slow
Melton John and Dave ponder anti gravitation issues.
Henry Pasquet sends details of his latest super light flier ........
" I am sending two pictures of my newest " Little Bit Slow". It has a 20 inch wing with 115 sq inches. It uses a 4 mm motor with a new 20 mah Kokam battery. The total weight is 4.8 grams, with a wing loading of 6 grams/ sq foot or .2 oz/ sq foot. This should be the lowest wing loading of any R/C airplane ever built. I flew it at Carthage on December 15 with Bob Selman. It shot up almost vertically on launch. It flew 13 1/2 minutes on the first flight with the 760 mg Kokam battery. That should be the longest flight per weight of battery excluding solar power. It flies at a slow walk, about 1 1/2 mph, and will fly in a 3 foot circle without having to add power or losing altitude. None of us could believe how well it flew. This is a true living room flier. This is the most fun I have ever had with a model airplane" Henry
Ex Ante! If Henry has a 20mA Hr polymer cell that weighs 0.75g, we should be able to get them soon .... so the latest generation of micro planes are already obsolete! Doh.
Mark won the first Aeronutz International S R Challenge Series with his 7", 6g Corsair. Knowone else entred. The little Corsair was nose heavy and bust the motor on the first launch. Second launch was better but swung round to the left and crashed into Simon's leg. This seems to have caused a complete electricl failure thereafter? So, total fligth distance about 5 feet. Should be able to better that next time. Artwork was terrible. Pilot looked like Darth Vadar with a hang over. Tail and fin are much over scale to increase stablity. But, it did weigh 6g and it is 7" span, The wings are solid and it does have a scale radio mast. Test flight used half throttle and there seemed to be plenty of power so However, the Corsair's wings seem to be strong enough using double skin for the inner wing, which saves a lot of weight and makes painting easier as all the parts are made from the same material. The wings are butt joined onto the fuselage. In this case the fuselage is stiffened by the 90mA cell which is near the CG. Also the joint line between inner and outer wings seems to make it stronger. So, if you made a P51 or Sea Fury you might need to use stiffer material for the wings - like Peter's hot wire cut ones. The small diameter prop is much more ridgid than the big Ikara rubber power prop. used on the 10" Jigglet. This means the motor is more likely to be ripped out of its fixings during an unscheduled landing. To counter this it might be a good idea to fix the motor to the plane with double sided tape. We only have a few grams of thrust so it's not likely to pull out of the plane in flight. Make sure the wires are fixed securely so they do not damage the cell by short circuiting if the plane crashes.
Dave's new foam twin rubber F/F on a testing sortie prior to painting. Looks very promising from here. Uses Ikara plastic props, what a good idea. He told me what is it but needless to say I have completly forgotten other than it's WW2 and German. Flew nice and smooth. I wonder if it was VW?
Dave's trainer with JMP
Rx.
Ray's F/F Hunter
Maplins are selling multi meters for £2.50. That's silly money. You can't buy the leads or the box for that. Might be as well to buy a couple to use the LCD and current / voltage meter for charging NiCd cells or making variable voltage cicruits?
Maplins multimeter
madness
Peter Frostick continued the fine Aeronutz tradition of Aero towing. He had some super high altitude flights, I seem to remember seeing a nice high altitude launch too.
Presisdential No show. President Bush came over but got the wrong weekend, bugger! You would have thought his aids could have sorted that out. So he had fish and chips up the pub with Tony instead. Blow me down if the The Duke of York did not do the same thing. He came up to Leicester and ended up looking at some town centre regeneration stuff.
Looking back, 2003 was another good year for indoor development. The most important advance is the number of new folks fiddling about with small planes, circuits and actuators. There seems to be so many possibilities these days that we dont have enought time to optimise eveything. Our materials are now readily available. Our thanks to Matt and the MW men at Dynalloy for getting the 025LT back into production. Flitehook has found a bundle of U80 props, Depron and gooey glues are readily available. Bob and Jag Graham have had some success with different Flexinol actuator designs. Micro radio is here, thanks to JMP, Nick and Serio. Falcon / Dr Chris have produced a super little servo. Rumours are that there will be a new 2g,35MHz narrow band recivers available next year, new lithium cells. Hopefully we will get some of the new 7g micro planes trimmed out and flying.
Indoor flying can be very educational ......... Art, Electronics, Digital photopgraphy, Accounts,Web design, magazine articles, speling, CAD drawing, Sums, Building skills, materials sceience, Chemestry, Research
Cutting a dash
Cut a rug
Leicstershire is the birth place of manned flight, extreme Ironing, the Aeronutz, zubs!
Friday Jan 9th
Corsair structure. The 7" Corsair seems to be strong enough (although it has not actualy flown yet) using 2mm wall foam. However Peter Frostick was kind enough to send some hot wire cut foam wing panels to try. These foam wings are cut from a yellow version of the blue DOW building insulation foam. They are heavier than the 2mm wall foam wings but that might not be too much of a problem if we are trying to fly faster and use ailerons and elevator control instead of floaty rudder and throttle. They might be good for a super small twin motor model like a B25 too .........
Hot wire cut foam can be very accurate
at small sizes
Peter's are 4" x 2"
Nick Leichty has very kindly sent Mark one of his 27 Mhz. Rx It is a single channel, bang-bang system for rudder control. In addition to the rudder it also has a with a timer for the electric flight motor. The motor of the motor can also be set.
