Dec2000

AeroNutz News Letter Number 23

December 2001

You are invited to our fun fly on Saturday 29th Dec. 2001 at Parklands Leisure Centre Oadby, South Leicester £8 per flier/family. Fliers of machines over 10g must be insured (£1 coin weighs 9.5g) Remote control fliers can fly at anytime but their machines must weigh less than 85g and be of scale appearance - so no stick planes please, ask before travelling.
Tables and chairs provided, fishing pole too. Bring a warm jumper.
5PM UNTIL 11PM

Indoor Infrared.
Dr Chris will make you a voltage booster to power a Cloud 9 pager motor, so you can fly one cell machines. These models could be made from wall paper lining foam if you designed a bipe with the two wings braced with cotton or nichrome wire like Simon did on the electric Flitzer? One cell IR machines need to weigh about 12g flying weight. Dr Chris has some of the very good and much recommended Bob Selman battery chargers too. Contact Dr Chris for more details
Graham has a new two cells infra red controlled SE5, it has direct drive and Union 80mm prop.
Ray has a new infra red, Delta which uses “dragalons” Just about got off the ground but the steering seemed to work OK.
Non of Mark’s planes flew!
Don't forget that the Z Tron infra red can use a twin motor steering Rx. Multi’s Dr Chris is working on a B25 Mitchell and Andrew is grappling with a civilian version of the Lancaster, (York) Mark is still tinkering with a Beaufighter and there is a youngster in the UK who is interested in making a Lancaster. Nice to see more interest in multi’s these days
Andrew H has put some photos on his own web site, the little plane on the left is Dr Chris's one cell SE5 - our success at miniaturization is illustrated here by the fact the plane is the dot in the middle!!
Hello new IR flier, Dr Dennis in Austria, who when not skiing or mountain walking plays with toy aeroplanes - its a tough life on the continent! He is trying to get some of the local outdoor fliers to have-a-go at indoor flying, good luck to him. He has the Z Tron IR system now so I am sure he will come up with some super models in the future.
There is now much talk on subject of micro indoor planes (not park fliers) on the E Zone's new Micro Flight chat pages. A link to Andy's web site with video clips of various Aeronutz indoor R/C planes (particularly Dr Chris's one cell Tiger Moth) was well received. They are still behind the times but now they are considering the appropriate problems, such as making actuators instead of using servos. Light'ish servos make your wallet light not the plane. I think they are still building with traditional stick and tissue, so still a little way to go ...

Dr Chris has the Aeronutz plans/patterns for the B25 Mitchell twin, no doubt building on the success of his IR twin steer Scion
Indoor R/F control
Dr Frostick* writes ... "The capacitor radio, rubber powered, flying flea is to good for its own well being!!! ---- with an 80 ohm actuator, the radio runs for around 75 seconds, with good control; snag is that the very light 15" model is good for 90 seconds plus! After loss of signal the little chap just does it's own thing in gentle circles, so nobody notices anyway!! Moral; If it aint broke, don't fix it!!" Ahh! but Peter's a genius, we could not get our planes to fly for more than 60 seconds, so we are OK then!! This control system uses single channel 27 MHz and a 1 F capacitor. More details later ....
*Peter Frostick has an honorary Phd from South Knighton University, anyone who has seen his toy planes fly will not be arguing!!
Bernard fitted two of the new 70mA NiMH batteries to one of his Depron Free Flight machines and it flew OK. They are 1g lighter per cell and cost about the same as 50mA NiCDs. He chargers them with the usual 500mA blast and all seems well at the moment. On the test rig they produced 6g of thrust compared to 7g from 50 mA NiCds. Voltage did not drop too much either which is good for infra red users. At the end of a run they do seem to die off more quickly. I think they will be OK for 20g machines while 50mA NiCds or 110mA NiMH cells would be better for 25g machines. Still no sign of the Lithium Polymer cells which should radically change electric flight, despite Mark’s requests to Santa.
Andy's video clips are popular, I can't get them to fully down load (I see them in the flesh anyway) but lots of folks around the world can see what mini planes look like without have to come over hear, thanks to him for his efforts. Andy's web site.
New Year's honours list, a gong for Dr Chris for making things small, gong for David Boddington for publishing the Aeronutz Jigglet in 1996 - far sighted!! MSP for Andy (made small plane)
Hooray for Halls Peach and Raspberry Smoothers throat sweets, worth getting a sore throat for!!
Park Fliers
Lots of high pressure in England last couple of weeks, so still air and outdoor clod thumb flying. Barry has a super looking airliner with rocket motor, made from foam.
Lots of nice electric R/C park fliers about now, good to see. Mark's four cells Albatross flew well outdoors on the couple of occasions it was tried. Use your (olde fashioned) WES Tech indoor servos, geared Kenway motor, GWS Rx. Rudder and throttle. Watch out for voltage dropping below the servos low limit as they zoom to one end with spectacular results if your are 20' about the ground. Aviation Modular has some photos of Richard Crossley's Zero R/C park flier which was converted from a rubber power stick and tissue kit. If you are new to lightweight R/C, don't forget to check with indoor venue organizers to see if you can fly your park fliers indoors, generally nit, but there are some specifically indoor R/C events not, see event listing in the magazines (in England anyway, rest of the world seems to be short of indoor venues, maybe they have outdoors air without water in it?)
There is a coach trip going to a big model show in Germany if you are interested
New online directory of materials and hepfull stuff here
Is this any help?
Foam.
One step forward on step back. We may be able to get 2mm Depron again but Bison have stopped making our much loved Clear Adhesive. John Birstow at Deluxe Materials says they have a new glue system for foam. It Coats, protects and activates foam for instant bonding with Foam safe Ca glue (allows bonding with conventional CA )
New indoor venue on south coast @ Hastings
Don't delay fly there today, well no, not actually today ... try 26/1/02, 9/2/02 23/2/02
Summerfields sport centre, Bohemia Road, Hastings. Contact No is 01424 434587.
5pm till 7pm If enough people turn up we will stay for an extra hour. Nick.
for more details
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Chox box
Christmas is a time for Aeronutz to build themselves some new toys, alas Santa seems to be struggling to bring Mark a 1" diameter gas turbine. Santa does bring us some interesting materials though. Ferro Roche chox boxes are good for those little things you can never find because they are clear so you can see what's inside, lots of metallic Mylar about, foam meat trays, clear plastic trays for putting your coils in and best of all - nothing interesting on Tv, so no distractions! Mark and Simon don't have Gold Fish these days so no need to have a TV to put under the bowl to keep it off the floor.
I don't think Flite Hook are coming to our event on 29th Dec, exhausted from helping Santa no doubt.
Modifications to the Ikara 8” span F/F rubber WW2 profile fighters.
Mark has modified the P51d and Zero. Both are supplied with a grey motor stick, which has been painted the same colour as the model. The standard design bends the leading edge of the wing down without fixing to the fuselage. Just add a bit scrap foam/balsa to stop it moving about. Mark is using a little more dihedral and the main wing support has been replaced with wing supports that run down the side on the fuselage at an angle of 45 degrees. The P51d has been fitted with 0.5mm Depron wing tanks, which are also used to fix the airfoil shape. It’s a good idea to add your initials to your model, as they all look the same!
Carbon Fibre.
The IR fliers have been making props with CF and they look good, they are light and tough. Either Form the individual blades round a pop bottle and cut them out or make a mould based on another prop. Super light machines like Dr Chris’s 12g, IR, Tiger Moth use a single layer of cloth while bigger machines use two layers.
A sheet of Depron disappeared at our last event, it was over near Barry, any ideas where it might be?
Rudder waggle, there’s a thing. Both Mark and Andrew had IR controlled models with high frequency rudder waggling? Not all the IR planes had this problem and it did not seem to be just one Tx either. Tests will show if this is effect is caused by aerodynamics or electronic interference. Spooky.
Lasse in Sweden says he is pleased with his supply of 0.5 and 1mm Depron. He is working on a bunch of new F/F and IR models having previously used stick and tissue. He says he might come over to the home of foam in the New Year. While we are very experienced with various types of foam models there are still lots of traditionally made machines flying at Aeronutz fun fly events.
Merry Christmas
warm dry indoor new Year