• AeroNutz News Letter               Number 138
• January 2001

You are invited to our fun fly on Saturday 19th Jan. 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.
Is there anyone living in the Preston area?
Will you go round to Dr Chris's place and tell him to SLOW DOWN!
There is a rumour going round that he is making an electric, two channels, 8" span SE5! When I was a kid, a small free flight plane was a KK SE5 "Flying Scale Model" and they are 16" span - isn't that TWICE  the size of Chris's two channel version!
I am sure Chris's will fly for twice as long too ....

On the subject of going back in time, is anyone interested in retro fitting the Z Tron infra red system into one of those NoCal stick and tissue rubber power planes? Just use rudder and power the electronics with a capacitor, so wind up rubber, charge cap. from the cells for 20 seconds, hand launch, fly over there, come back, fly over the other corner, go round all the F/F planes in the middle of the hall, nice power glide back to your table, catch it and start again. There a hundreds of plans for these things so once you have one sorted - you have done the lot. Mike found this super site full on NoCal designs

Still lots to do! Mark will be teaching his new infra red 10" span, two cells Vulcan and rubber power infra red Corsair to fly. Andrew H will no doubt be testing motors on his York airliner, Jeff has a Combo infra red Rx so hopefully we will see that in a plane, Ray will have at least 10 new planes ...

New Developemnts for the Spring.
Now we are regulary making two cells, two channels, low wing WW2 fighters  it would be nice to go back to the olde days when we used the correct number of blades, does anyone remember Mark's five blade prop on his 6" span, rubber power Sea Fury? (No neither do I, too much incidence me thinks) These long thin prop blades will be either carbon fibre or yogurt pot material. It would be a good idea to have pop down undies to protect the prop. on landing. Maybe use a bit of Muscle Wire to pull out a relase pin and have a spring to drop 'em ? Future infra red, two cells, KP00 geared planes will use the new 70mA NiMH cells and the wings will be made of 2mm Depron, they might be a little smaller too. This layout will save weight and reduce drag. The 70mA cells cost about the same as 50mA Nicd's but weigh one gram less per cell which is very useful.
Both Graham and Dr Chris are developing the next generation of higher power voltage boosters, mainly intended for use with geared, coreless pager motors.
This summer we expect to see a new generation of model - the garden flier. It will be radio frequency, proportional actuators, three or four cells, maybe 30 to 35g? Maybe have a little look round here?

Flitehook have a new supplier of genuine white Depron, which is good news. Dave Ridgway is making some kits and he also has a supplier of Depron some of which is is coloured.

Andy's video clips are still very popular, he has re-designed the site and it looks very professional. I think there are several planes the rest of the world need to see! Like Simon's infra red twin motor pure flying wing, free flight glider towing, Peter Smart's rubber powered Lancaster, Peter Frostick's free flight rubber power helicopters, Mark's 4" span aerobatic Mig15 ...   Andy's  web site.
 

Free flight.
Barry’s big whites. Barry had a couple of big, Depron, free flight, rubber power machines using standard plastic props. Flew nice and slow - make good park fliers in the summer, but are likely to be lost as they flew very well.


Bernard is making fuselages out of balsa with tissue covering because they accept head on crashes better. Thin Depron tends to crumple. A good reason for not flying into roofs, walls and ground - steering it is another answer of course!
The Ikara WW2 fighters mass launch was not too spectacular, but Mark sorted out his P51d later in the evening and which then turned in some high altitude roof skimming sorties. No kills to report but looks like being a world-beater when the rubber gets a bit stretchier. Modifications included adding wing extensions to fill in the gap between fuselage and leading edge, streamlined dihedral supports, painting the motor stick the same colour as the plane (invasion stripes) and adding 0.5mm Depron wing tanks which also act as ribs to keep the wing shape. It a good idea to make a simple little gizmo to hold the plane while you wind it up. The P51d requires lots of up elevator so maybe a little long rubber could be used? On the way down the rubber tends to bunch up at the back of the plane.

Hello to the new folks, nice to see a new indoor event in Northern Ireland where they do quiet a lot of aeromodelling.

It was a bit cold at our last event because the wall louver’s shutters have stuck open again,
Mark has written to the Parkland’s managers asking them to get the shutters serviced again, which sorted the problem out last time.

Mark’s infrared, Mig 3 was retro fitted with a new carbon fibre prop. and flew very well. It climbs really well and turns both ways Ok. Gordon made the prop, its similar to the Union 80mm but a bit bigger diameters and has much thinner tips so it cuts through the air easier. The bigger diameter makes the prop more efficient too. Its carbon construction makes it flexible but tough so it does not break or twist in use. The Mig has 2.5mm Depron wing, two 50mA NiCD cells, Z Tron infra red control system while the KP00 has the standard orange gears. The fin is quiet tall and simply butt jointed onto the top of the fuselage which caused it to wobble from side to side, so it has now been stiffened up a bit.

Andrew had his new electric York (Lancaster) four engine machine, test flew it with just two motors and the (2g) infra red twin motor steering system. Andrew took a picture while Mark launched and piloted, instead of power gliding slowly to the floor it started a gently climb which surprised both and Mark was so busy spectating he nearly flew into the wall!! The thrust and current of the two Kenway geared motors will be tested to give an indication of how much power four pagers motors would need to produce to get a steady climb. Looks good, we could use some thin style carbon props and use huge gearing rations too.

Simon had his new video camera with him and noticed that the infra red Tx emitters showed up on when viewed through it, this then showed that Ray’s IR Tx was only using 1/3 of it’s emitters! Ray then borrowed Mark’s Tx and was very pleased to see his two cells, Hurricane fly perfectly thereafter! Mark has since fixed the broken wires and all it well again.

Mark has a little circuit with a flasher which detects IR, so we know if someone has left their Tx on, details and a kits of parts are available for halls where lots of IR systems are in use (of which we seem to be the only one!)

Ray had a new infra red controlled delta , powered by two direct drive “B2” motors and Union 80mm props with carbon fibre shafts. Made from wall foam with three NiCd cells. The plane flew well and was steered by pop up dragalons which are powered by proportional coil actuators.

Danish Aeronut, Michael Henriksen  (Epilot) has made three, infra red controlled, two cells planes, with geared KP00 motors. A nice safe Jigglet, a Hellcat and a Spitfire, the latter two being carved from pink foam and all three weighing 25g at about 15” span. He has just got a video camera so hopefully we will get some vid clips of his airforce in action, if they can keep them in the frame. See revised R/C indoor page

Mark has written a little ditty about the use of voltage boosters in small electric powered models.

Dr Chris is posting his One cell remote control planes to Sergio in the USA for a big show in a couple of months (WRAM)  Dr Chris has some of the very good and much recommended Bob Selman battery chargers too. Contact Dr Chris for more details