AeroNutz News Letter
                              Number 23
                                           Feb. 2001
 

You are invited to our fun fly on Saturday 24th Feb 2001 at Parklands Leisure Centre Oadby, South Leicester  £7 per flier/family. Fliers of machine 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,

. FliteHook will not be coming along this month as it's too warm,
 
Back to the USUAL 5PM UNTIL 11 PM,
tables and chairs provided, fishing pole too.
 

Rubber Power remote control
Mark has made a smaller version of his Super Tango rubber powered infra red controlled machine. The ideas is to use less powerful rubber so the Ikara prop is not overloaded. This one will be really easy to use too as it runs from a capacitor instead of the watch cells. Just solder all the wires direct, no switch. Uses a bang bang Rx, super light coil and 3 x 2mm magnet. No need for a voltage booster, if all goes well Mark hopes to make a series of interesting rubber powered mini jets using the same formula.

Free Flight
Doug's little green flying machine was going really well. Stick and tissue made from a kit, high wing cabin design with rubber power. When the AeroNutz started such machines where common but did not fly, which is why we encouraged new indoor fliers to start with a foam Jigglet.
Capacitor power for flight motors has taken a step back as we can't buy the CMS motors now, but we can buy the new super capacitors and some of the R/C designers are testing pager motors/props/gears so there could be a replacement there?

Model Flyer magazine has lots of free flight jets for outdoor use. Super Super Sabre F86E by Britain's finest aeromodellers - Steven Glass, a huge stick and tissue beauty. All three of Norfolk's blue foam carvers are in there too with a terrific range of 1960's jets powered by Rapier rocket motors. The photos are excellent, the one of Peter Smart's Vulcan in flight with a train of smoke on page 43 is worth the cost of the magazine on it's own ! Rare photo of Richard Crossley, with his X15 design  -  setting a fine example of stylish Aeromodeller. There is also a review of the new Penny plane from Flitehook, nice photo of John at our hall, the Bull Dog kit is £12 and the prop is worth half that !

The Hampshire indoor Nutz are still doing well, latest news letter mentions some micro flappers at about 2" span - this is what we like to see !

Ace indoor aircraft designer, Dr Chris is coming down from Lancs with his infra red controlled one and two cell flying machines which will be very interesting to see.
 
Who said aeromodelling is boring ? Mark advised Graham he should use ultra thin plastic bag for making his rudder hinges but Graham says he finds it wrinkles so he uses Mylar.

Our F/F rubber power GrooveJet sports design will be in the next issue of Model Flyer, it was not in this issue as they have too much stuff to squash in.
 
We fly slow and light but now we should be able to fly quiet too. Mark has taken up Andrew's belt drive idea for electric power and has done some tests. The cells used are not the same as for previous tests which is the most likely reason power was down slightly. Three gear ratios have been tested and only the highest gearing caused the belt to come off. Only a little belt tension is required, makes about the same noise as a direct drive. It weighs about the same as a DIY gear drive  but is easier to make as you don’t have to mesh the gears accurately. A big advantage would be achieving huge gear ratios. All the test are done using a KP00 and two cells with two and three blade KP00 props - so there is not much power being handled, which is OK for our little sub 25g machines.  Should be great for multi engine models which would otherwise sound like a combined harvester.

Infra red
Mark has made our first WW2, low wing 2C2C plane following the success of Bernard's high wing Depron thing.  The 16" span Me 109 (built in two days!)  will try the belt drive system. Weighs 24g uses a simplified square shaped fuselage most of which is folded from one sheet of either 2mm wall insulation foam or very think Depron. The wing is a single plate of Deron  which the tail feathers are also 2mm wall foam. Control is infra red proportional,  two channel, motor is KP00 on two 50 mA Ni Cd cell. Three blade (almost scale) KP00 prop, driven with belt drive at about 4:1. The undies are steel wire and are the positive and negative connection terminals for charging the cells (Bernard), wheels are plastic (almost scale) ones from FliteHook. The proportional rudder uses a 200 Ohm coil (by Dr Chris) and 2 x 3mm Maplin's Neodium magnet. The control system uses the new voltage booster (Mark now has 20  chips) although new fliers could soon be able to buy a combined infra red Rx and voltage booster on a single mini circuit board - just solder the wires on and away you go, constant rudder power down to a  battery voltage of about 1v

R/C fliers that are banned from our events made their way to the first indoor R/C event at Coventry which seems to have had a good turn out.

There have been lots of enquires about our semi scale, mini remote control planes this month which will hopefully blossom into a range of interesting machines.

Following a change of motor side thrust, and Mark/Bernard's 2 channel, two cell 25g model now turns left and right very well - as seen a Nottingham recently. This particular machine is now with it's new owner in France.

Graham successful flew his new two cell, two channel machine based on Bernard's Depron style F/F models. Very powerful rudder control despite a small rudder which is good new for future scale machines.

Our web site provider have FINALLY wound the spring up in their computer ! Mark could not use email or access our web site for about 10 days, but now all is OK? So what happened there then? Wrong kind of snow? Leaves on the telephone lines?

We have been trying to get hold of some CMS motors so we can test them as it is thought they might be better for one cell flying machines. Our agents in the states say CMS don’t have any more motors, so if you have a few and are interested in selling them let us know - make sure they are CMS and not KP00 as they do look the same.

Simon and Mark have been warming Depron and curving it - more details later.
Simon has almost finished our first Nutz park flier, there is some talk about a local foam producer kiting an AeroNutz design in the future.

Falcon models are about to launch their latest design - a Tiger Moth, no doubt as successful as their SE5 and DH2.

 Don’t move the tables and chairs at Parklands without Mark or Simon's permission.

Andy has built an infrared detector so we can avoid using  two Tx's at one time. There is also some talk of having three separate channels for infra red control. The detector could be built into the Tx as its not very big.

Bernard has made a stick and tissue, one cell,  F/F machine. I did not climb but was stable and looked nice. It had lots of ribs which could be reduced to save weight.

Rays foam infra red controlled 2C2C machine will ROG and turns very well in both directions.

Our new infra red man - Andy is doing well, made a plane in 5 minutes (good) identified things wrong with it (good) worked his way through corrections (good) and will launch it on Saturday …. And he's not taking it too seriously (very good!)

Has anyone lost a motor/gear combo ? Someone gave it to Mark to test. It is a pager motor of some kind with std. KP00 gears and two blade prop. The test showed it was a little motor which did not use or produce much power.