From the Editor Welcome readers to the second quarter of Airflow. Since the last edition there has been great feedback regarding the article on the building of the “Red Zephyrs” with some readers making contact with various groups and progressing further with the art of scratch building from plans. It is great to see a resurgence in Old Timer Electric happening across the state. There are quite a few sources to obtain plans from: starcadplans.net, outerzone.co.uk, SAM (So- ciety of Antique Modellers), Boundy39.com and for those into foamies try parkjets.com or www. shkhighhobby.com. These are only a few that I had been told about. I am sure that there are plenty more if you wanted to search for them. The down side is that building from plans is very time consuming and more expensive as opposed to almost ready to fly (ARF) but the list of benefits of scratch building will take up all of this page, but some are : pride in construction of a scratch built model, individual type models, not one is the same, gaining an understanding on structure,balsa hardness & selection to make a model that is light yet strong and gain experience in repairing broken models when a crash happens. I have known modellers who have retrieved smashed models from the bin and have faithfully re- built them, and others would buy an arf and completely strip the covering and start again. I would like to thank Malcolm Campbell for the Freeflight report at Narrandera this year, Mike Colston for the update on the National Electric Flight Rally held recently at Cootamundra in NSW. Bob Wigmore for his comprehensive history of modelling in the North, Bruce deChastel for the pylon racing from Japan, and John Bray for his contribution in the restoration of the Avro Avian- great work. Front cover: Sunrise over the flying field- photo by Mal Campbell, Bob Wigmore and his Stearman and John Bray wiith his faithfully restored Avro Avian. Cover provided by Jim Henry. TAA JET & WARBIRD EVENT MAY 18-19TH SUCCESS Hi to all involved with the event, the weather was against us and Sundays conditions were atrocious. Even with all the difficulties I am very pleased with the results. We will be donating $5000 to the charity which is excellent given the circumstances. I could not have achieved this without you all and I have special thanks to the following people- Veronika sold nearly 700 tickets which is no surprise. Mark Williamson for his constant assistance especially doing the jobs that were not expected. Steve Jones for the catering and the crew of volunteers. Ben Whitby for the fences and assistance over the 4 days and before the event Bart, Chilli, Peter Love, Peter Lambert and Steve Thomas for the preparation of the grounds and setting up. Robbo for the amazing donation of all the kits as well as his constant assistance and support for this event. Tammy Wilson from the hospital foundation made my life much easier with promotion and organising the event. And to you all for participating and making the event a specular show. A special mention should be made to Sean Chilcott(Chilli) for his sacrificing his model on Saturday for the safety of the crowd. Amazing stuff really and you all did an awesome job over the weekend. My sincerest thanks go out to you all and I hope I haven’t forgotten anyone. As a group we have raised over $9000 for 2013 and $29000 over the last 8 years. We look towards the future now and I hope to catch up with you all soon. Thanks. Luke Cullen AIRFLOW 3 Next MAAQ Meeting date : 24th August 2013 AT Chermside Library 375 Hamilton Road Chermside at 2.00 PM. THIS WILL BE THE ANNUAL GENERAL MEETING . Afternoon tea provided after meeting. Don’t forget to bring something for show and tell during the afternoon tea . Hope to see you at the next meeting. PLEASE NOTE THE CUT OFF DATE FOR MATE- RIAL FOR THE JULY-SEPTEMBER EDITION WILL BE THE 30TH AUGUST 2013. Please consult the calendar of events or the web site event calendar for the meeting dates for 2013. email: AIRFLOW 4 [email protected] FOR SALE Tiger 60 with a O.S 110 four stroke. The plane has never been flown. It has just had 1 tank run on the ground. the plane is complete with all servos and reciever and battery. Very clean and very nice. $650 with 2.4 receiver in it but throw me offers. Call Chris on 0466930620 or 07 53332135 AIRFLOW 5 ROBERT (Bob) WIGMORE TRACS AUS9832 1934 - In his own words: I am an old time modeller having started flying models at the age of 9. Since I was small, aero planes took my attention. When post WW2 balsa became available, I built some kits learning what works and what doesn’t. At that stage all flying was free flight with control line if one had enough cash for engines. During the next 10 years in England I flew with the Southern CrossAero Club. It was an excellent place to learn about planes and I built everything from indoor models to free flight power duration types. I spent two years in the RAF for my national service and then migrated to Australia in 1958. During a subsequent holiday in the United Kingdom, I purchased a Keil-Kraft single channel “Grasshopper set” and when returning to Australia I joined TRACS. This was in 1972, just two years after the club’s formation. I have been a member ever since – these 41 years have been full of designing, building, flying, teaching, competing, administrating and enjoyment. It has been a significant part of my life. The single channel Kiel-Kraft unit brought back from England was always inadequate for what I wanted to do but money was also inadequate. Eventually in 1973, I bought a second hand Kraft “5 Channel set” and built an RCM trainer powered by an OS 30 motor with teaching from Henry Johnson AUS7668 {“Henry Eagle” as we all know him} and Peter Foxton. By this time I had gained some skills and established my particular liking for scale, but I would have a go at anything. The building part of scale was particularly challenging as I decided to do it from the full size drawings and make my own plans. My first efforts to build for RC were not very successful - Number 1 being a Travelair 5000 which did not fly. I learned a great deal from this. The biggest lesson was – “Don’t change wing incidences” without knowing why it was like that in the first place! Here are three of my scratch built scale planes - Stearman, Fokker and Mew Gull. My Stearman PT17: I won a PT 17 Sterling kit at a competition in the early 70’s. It was very nice to fly but had a number of weaknesses. My yellow Stearman in the picture is based on the Sterling outline which is very accurate but with my structure. This model was scratch built from the three view drawings supplied with the plans which came with the Sterling kit that I had won. It is finished to represent the PT17 hanging up at Duxford UK in the US Air Force hanger. There are many color schemes but that one was readily available to photograph. Mine is 1845mm (5ft 11.5inch) span and 1420mm (4ft 8inch) long and the structure mainly balsa. There are a few variations on this particular aircraft which include the mag wheels and the instructions on the fuselage. AIRFLOW 6 The covering is bem silk doped and painted with auto acrylic and markings which are hand painted. The dummy motor is built of individual cylinders and heads and the exhaust collector ring was selected from Woolies plastic bowls – a place which I often use for cowls and the like. Power is an OS 120 which at about 5000RPM sounds about right and gives it a very credible airspeed. A few more RPM and all the justifiable aerobatics are available. This is a model that has very few bad habits and as long as landing skills are reasonable it will last a long time. There are a couple of things to remember when setting up this sort of model. Firstly, put some differential into the ailerons (more up than down) and secondly a little down thrust will help to overcome the tendency to climb under power and dive on low power. Learn to use the rudder on turns or put in a mix. This size PT17 is available as an ARF but it ain’t like mine! My Fokker E III series of planes: This was a long time scale project which consisted of three models, once again built from full size drawings and photos. The two smaller models were 7 ft span (4.13 to 1) and the final one was ¼ scale. They were built for competition and therefore control was warp and full flying stab and fin. I have seen models with ailerons and elevators. Establishing wing sections and incidences was a matter of research. I learned a number of things with these models. The radial cowling is open at the bottom but an upright motor will over heat and the wire bracing I used destroys 36 MHz signals. The first model was powered by an OS 60 FSR but prop diameter was a problem so an upgrade to 120 four stroke was the answer. I had some success with the Fokkers first at the Queensland Championships with a first in mammoth scale and then a third at the Nationals at Bundaberg.