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If undelivered please return to P.O. Box 14115 Christchurch Airport

CHRISTCHURCH MODEL AERO CLUB (INC)

CHRISTCHURCH MODEL AERO CLUB EXECUTIVE 2017 / 18

President. Grahame Hart 6B Middlepark Road. Upper Riccarton. (grahamehart@me.com )

021 726367

Secretary. Ian Harvey 55A Lockheed Rd, Upper Riccarton. (harveyi@plantwise.co.nz) 348 8206

Treasurer. Trevor Henderson 82 Rose St., Spreydon. ( bigtrev@xtra.co.nz ) 337 1091

Recording Officer Gary Burrows 42 Santa Maria Ave, Mt Pleasant. ( garyburrows@xtra.co.nz ) 384 0994

R/C Power. Graham Moffat moffatga@outlook.com 341 5455

R/C Glider. Paul Chisholm 66 Cairnbrae Drive, Prebbelton. (plchisholm@snap.net.nz) 2600928

Free Flight. Stewart Morse 19 Enticott Place, Huntsbury. ( morse@orcon.net.nz ) 980 9676 027 428 3333

Vintage Bruce Weatherall 223B Main North Road, Redwood. (bpweatherall@xtra.co.nz )

354 2220 02102688112

Indoor./ control line

Contact Bill Long for info 322 7202

Web Master Mark Venter 30 Manor Place, Bryndwr ( mventer@xtra.co.nz ) 351 6193

"Torque" Editor Gary Burrows 42 Santa Maria Ave, Mt Pleasant. ( garyburrows@xtra.co.nz ) 384 0994

January 2018

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The prez sez

Junior / Junior = under 18 Junior = 18 to 60 Senior = 60 to 80 Senior / Senior = 80+ Club perceived age / knowledge

Notice of the 2018 Annual General Meeting To be held on Tuesday 6th march 2018

Condell avenue cricket club rooms 1930hrs Please give thoughts to remits, new committee members (to be in the hands of the

secretary by 20th February) or any thing that you would like discussed

fire warning As you are aware it is to be a very dry summer so with that our fire danger goes up so please be very careful when using the field. Give thought to carrying fire fighting equipment with you just in case

WARning To all free flighters retrieving models Please make sure you are safe around the rc strip when retriev-ing your model by getting clearance from the rc officer. We have had a couple of “arrivals” which could have been damag-ing to your health if you were not being aware of what is in the air and about to hit you as it struggles with gravity due pilot error or equipment failure, so be aware.

Welcome to all of our members for 2018 and I hope that you all have a happy and fruitful year, may you all defy the law of gravity with many successful flights I am pleased to report that that electric fence realignment has been completed, thank you to Paul Chisholm, Rob Ward and Graham Moffatt for their assistance with this over the last 2 weekends It has been pleasing to see better turnouts on our Sunday club day with several new members and also a new heli pilot showing the plebs how it should be done Although there has been some rain of late, the club fields are still tinder dry so please take care, we do have sand and a fire extinguisher on hand, which we would rather not have to use. That's it from me Happy Flying Grahame Hart

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MacDonald Memorial Trophy presentation To John ensoll

Will happen (to be confirmed via email to all)

At the wigram airforce Old officers mess now called Wigram base 14 Henry wigram drive

On Thursday 15th February

between 1630hrs and 1930hrs Catering will be provided and a pay as you go bar

Everyone is welcome to this prestigious presentation

Radians as seen at the Soar champs (the Tomboys of the gliding world)

Word explanations Depression — reaching rock bottom then starting to dig Consciousness — the annoying time between naps Heck — where people go who don’t believe in Gosh Meanness — box containing two batteries and a note saying “Gift not included”

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Power patch report by “Mr. mower man” Moffat   So Christmas has passed and for some of us we are back to work. We did manage to get in 

some flying over the Christmas break. 

  The strip had dried out but with the recent rains its turned green again. Rabbits are back and 

digging holes in the strip. The sheep are also back on the strip but not in high numbers. 

  We are trying a new technique with the fence. The ground is so dry there is not a good earth. 

The earth stake has been improved but I can still work on the fence even when turned on with no ef‐

fect. On advice from a expert we have made the bottom wire the earth wire. I have tested it and it defi‐

nitely has increased the effect if you touch the top or middle wire and the bottom wire. As long as the 

sheep go through the fence and touch the bottom and middle wire they should get full effect. I don't 

now what impact the wool and small brain will have but we will give this option a try. The additional 

benefits are that any grass touching the bottom wire will now help not hinder and we have reduced the 

length of the fence by 30% . 

  We had a very large turn out last Sunday with a number of visitors coming to the field to see 

the facilities and the large area that we have to fly in. The helicopter  pad got crowded, they were queu‐

ing up to fly.  

See you at the Strip Graham Moffat 

A great gathering of the like minded intelligent people

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Team Chisholm with Dave G. ready to time

F5J soaring – Timaru – Sunday 26th November by Dave Griffin and John Shaw

Breakfast at MacDonalds in Ashburton, Great Coffee and OK food. The CMAC crew met up here Sunday 26th November to get ready for our day flying in Timaru. Scott and his boys Hayden and Ryan, along with Ian Harvey, Peter France and Dave Griffin fuelled up and got on our way to the Cartwrights Road site to join John Shaw and Paul Lagan for a day flying F5J. The day started with a bit of cloud cover and light winds which suited some of the lighter airframes especially young Hayden Chisholm with his Radian which was seen climbing higher than the rest in the first slot managing to do 9.50 flight time . Hayden flew a long side the contest with the help of Scott. He flew the first three rounds until the wind increased, well done Hayden - we look forward to you following in your Dad and Granddad’s footsteps as a competent thermal soaring pilot. It was great to see Paul Lagan down here flying; it had been a very long time since he was here last; we won't say how many years. As the day progressed and the easterly wind got up it was obvious that if one could put ballast in it would be of great help getting back to the spot from down wind A great day was had by all with 7 rounds being completed. As the results show below, John Shaw prevailed from Dave, Scott and Ian. Peter and Paul took some risks with low alti-tude motor cut offs which cost them in flight times as they scratched for height.

99% of photos and captions by Ian Harvey

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: Ian H pirouette’s his plane into the landing circle???? (Who took this photo?)

NOTES: F5J is one of the new FAI Classes for Electric Launched Thermal Gliders. Essentially any electric glider can compete and the scoring system makes it a more level playing field than some comps where launch height is king. All the models in a 10 minute slot launch together and try to fly for 10 minutes. You can launch as high as you like up to 200m BUT… there are penalty points for launch height which favour a lower launching model - provided they can make the 10 min slot. Any model from a Radian up can enter and be competitive in the right hands. All models, however, must carry an ALES (altitude limiting electric switch) device on board, but programmed to a 30 sec motor run and a screen read-out that notes the height when the motor is cut (the F5J selectable program). This height is entered along with flight time and landing score into an algorithm that calculates the final score and penalizes those pilots that commence soaring at 200m and above

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“These floaty wings just have to be the best” declared Peter F.

Lagan and Shaw contemplate tactics John S prepares to launch into the blue

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Tomboy 3 December 2017 What can you say “It was bloody hot” and maybe that was why the flying was of a very mixed bag, mostly BAD as shown by the results. Missing were some of our “Class” acts E.G. Dunstan, Ensoll, Glubb, Venter, McCurrie, maybe they could see that it wasn’t going to be pleasant (30 degrees) at least it was flyable. Here is a run down on each flyers efforts Stew Morse 48”had the biggest problem with his first flight, with it going to such a height that he lost sight of it and while some of us could still see it and tried to guide him back to the paddock for what would have been the top flight of the day but sadly it landed in the py-lon paddock (retrieved safely) Stu Grant was the 48” winner on the day with his reliable electric (the diesel boys were having motor run problems) Lynn Rodway 48”was having engine run time problems with his exhaust smoke being black not the white/grey color it should have been for signs of proper combustion John Beresford 36”was still having problems with his 36” even putting his F/F Tomboy wing on it to no avail but still good enough to beat OBGGGGG. John complained of the turbu-lent air that he was flying in. OBGGGGG 36” was also having engine troubles even though the first bench run of about 5 minutes gave him hope that he would cream it BUT NO, first flight of 4 minutes was 2 seconds less than John B, after that it all turned to custard with the motor not delivering the power that it had on the bench run plus being hit by the air turbulence that John B was talking about

TOMBOY 3 December

FLIGHT 1 FLIGHT 2 FLIGHT 3 BEST 2 OF 3 IN SECONDS IN SECONDS IN SECONDS

BERESFORD 242 193 0 435

36" D Landing 0 0

BURROWS 240 53 0 293

36" D Landing 0 0 0

GRANT 392 505 481 1016

48' E Landing 30 0 30

RODWAY 403 244 264 697

48" D Landing 30 0 0

MORSE 0 274 205 479

48" D Landing 0 0 0

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“magnificent minds” cmac club night 5 December as observed by

obggggg Five of the above attended our final club night for 2017, their minds were challenged to manufacturing and flying Maestro Venter’s published glider from his crappy polystyrene. Then to see who could fly them to the other end of the hall. The persons who flew the furthest had ignored the challenge of only using the supplied material by bringing their own balsa fuselages (it seems the bending of the rules does not only apply to the Tomboy fraternity !!!!!!! ) requiring a strong CD of

which on the night was lacking !!!!

Now the official CD’s report Despite the small turnout (only five members) we still had a good time. The same sheets of building foam were supplied but this time the design was a "Dart" style chuckie. No Balsa so performance was always going to be limited (to suit the venue). Turned out to be a lot more lim-ited than expected however since even the fuse had to be made from foam although the eventual winner ( Stu ) had managed to sneak in some Balsa for his fuse. Well done Stu, winner by probably a few feet since the eventual goal was to see how high above the ground you could hit the opposite wall.

The right place for them

From left Bruce Bonner (2nd), Stu Grant (winner), OBGGGGG (last, as used a MV foam fuselage!!!)

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FUEL TANKS AGAIN...........as seen thru the eyes of big T. Yes, better weather means generally more time to go flying, and of course with that comes the inherent problems of motor tuning.......the needle and glow plug are only two of the major issues that will help you get a good and consistent engine run. Equally as important but perhaps least understood is the location of the tank- and this may well be the reason that people ask me for head shims! I know you will say they are unre-lated however people find all sorts of reasons as to why they think their engine consumes glow plugs. Your engine will only ever consume glow plugs because it is being run lean............... and trying to establish why you had set the needle lean can be like trying to find a needle in a hay stack. Here is what I suggest you do to start eliminating the problems:

check the fuel and pressure lines and if in doubt then replace them both check that the glowplug is tight and then also the cylinder head bolts- yes, they can get loose check that the muffler is tight check the pressure nipple on the exhaust is tight and certainly then ensure that nothing is

blocking the nipple check that any fuel line filter is not blocked- even I have been caught on that! with the muffler off the engine check that there is no scoring on the piston- that will allow

for a compression leak and that will get worse when the engine is running. don't laugh but I have seen a liner put in the wrong position........ last but not least put in a new and appropriate glow plug.

Having now attended to all of the above you now 'should' know that everything except the tank should be very close to being perfect. Take your model for a fly and see if any of the above has made any difference............do a proper ground tune and then go for a fly. Be objective and note in complete detail any changes- you will be surprised that the amount of time involved in carrying out the above checks is very minor compared to the frustration level of never being able to get your engine running properly. Still not right- then remove the engine from your model and put it on your test stand and run the engine using the same fuel, prop and glow plug. The aim here is to try and replicate the problem that you were having whilst flying. If you cannot replicate the problem then you can almost guarantee that the tank as setup in your model is the culprit. Time to remove the tank from your model and in so doing check that the tank has been wrapped in at least 10mm foam to the top, sides and bottom. We need to totally isolate the tank from any of the structure. Then ensure that the centreline of the tank should be on the centreline of the needle valve- if not then unless you fix that problem then you will never get a good engine run- its criti-cal! In general terms with an upright motor then you will need to raise the tank, and con-versely if you have an inverted engine then you will need to lower the tank. I run my pylon en-gines side mounted and that tends to minimise any problems however I do also run bubble-less tanks- and that’s a separate subject for a later article.

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Obggggg’s latest build Karoro (black backed seagull) Designed by Our John Sheppard 1950 (who was 16 at the time) John was born in 1934 and was a lone member of the NZMAA as he lived on a family farm, later John and his “Gloworm” model won (1960) along with 5 oth-ers at a amazing world championships contest in which each flier completed 17 consecutive maxs and as they couldn’t separate them they were all declared joint champions. The Karoro has been confirmed as built and flown in 1950 by John himself and therefore is also eligible as a vintage model as well being able to be flown in the new approved Vintage sport class as it meets all the requirements . It was published in the January 1953 edition of the Aeromodeler Originally the design is shown as a free flight floatplane with the ability to be modified to a tail dragger (2 wheel U/C) which is what I have done. As it was needed to be modified to R/C I have chosen the electric version of the sport class (180mah lipo 2s), there have been challenges in converting with my in-tention to use it in as many vintage classes as I can, the first be-ing the ability to change power plants to a Cox .049 Bee. The wing section is a NACA6409 (under cambered and was popular at the time, possibly a bit slow these days, we shall see!!!!) The photos below are where the model is at time of writ-ing.

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7th January 2018 Free flighter’s Early bird worm catchers!!!! By Stew “stretchy” Morse

Happy New Year to all. A large turnout of two free flighter's enjoyed the rare calm conditions today. Lynn and Stew M were content to put in CLG times, have a cup of tea for new year and then try to iron out Stew's A1 glider. A difficult task with little wind to aid when launching. CLG Lynn 51 26 60 60 30 45 total 272 Stew 23 21 20 29 49 40 total 182

14 January FF report (by sneaking out of the house while the boss is sleeping) Stew Morse

A beautiful flying morning weather wise had Bruce Weatherall, Lynn Rodway and Stew Morse turn up to have a fly. Stu Grant, John Ensoll and Bruce Bonner arrived later with models to tune up. Lynn and Stew had more success launching their A1 gliders than in the previous week's still conditions. However the steady breeze and 30 degree heat combined to make recovery chases long and exhausting. Lynn 120, 81, 89, 105, 77 total 472 Stew 86, 40, 96, 102, 59 total 383 Earlier in the morning Lynn and Bruce both flew times for Vintage Free Flight Preci-sion. Bruce W 41, 44, 63 total 148 (bonus inc) 1942 Request Lynn 70, 90, 84 total 244 (bonus inc) 1948 K/K Bandit

Poopy puppy pooper scooper reports Aren’t free flighters a crafty lot, based on what one of my reporters tells me (Fake news

it is not!!) A email correspondence between “Stretchy Morse” and OBGGGGG about Sunday the 7th’s poor performance in CLG went like this (refer to the FF report for the first email) this was followed by OBGGGGG replying as follows “Thank you for the report, I considered going out but gardening tasks for the wife took precedent as they do!!!!! Will try and get out to put in some times as part of my new years resolution OBGGGGG” The following response from Stretchy“ Any task for the good lady of the house will al-ways take precedent. That is why I get up and sneak out before she wakes up!!” I understand that when he returns home after an enjoyable day at the field things can be a little frosty from the sleeping in person whose list is now some what longer!!!!!! It has been a while since Mark Venter has graced the Flying field with his presence and

undoubted skill BUT I understand that his new years resolution (of more modeling) is about to kick in, thank goodness for that!!!!

They called their second-hand car “Opportunity” because they could always hear it knocking A cat doesn’t have as many lives as a frog, which croaks every night If you want to grow thinner, diminish your dinner

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21 January f/f and vintage by ‘generous to a fault’ morse

Four free flighter' s turned up to take advantage of another good Sunday flying conditions

Times were posted for the following classes:-

Vintage Glider Lynn R Lulu 59, 66, 85 total 210

A1 Glider John B 120,62, 120, 120, 120 total 522

JOHN Beresford was flying a Jedelsky style A1 glider that originally came from John Ensoll's hangar. John E gave it to Stew Morse who in turn gave it to John Beresford. John Straightened out a warp and managed and almost perfect result. John B thought he would hang on to it!!" after the offer from Stew to take it back !!!!!

Coupe

Bruce W 42, 75,49 total 166

Lynn R 37, 49, 69 total 155

Catapult L G

John B 24, 31, 34, 27, 37, 22 total 175

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Weather Station Phone Number 021 02943562

Operating times Monday to Friday 0600—1300hrs and 1400—1700hrs Saturday and Sunday 0600—1600hrs

Editorial Manure. # 156,

Here we are again, another year older, wiser!!!, deeper in debt (on those necessary modeling goodies that you didn’t get for Xmas!!!), your bucket list of models still to be repaired and built , seems to me that nothing changes does it??? But that is why we love our hobby and all those like minded people who we associate with , long may it carry on.

I trust that even thou we have had a smidgen of rain lately we are still being careful about the potential fire danger at the field, to this end we now have a extra fire extin-guisher in the container courtesy Jono Ward who, having read the last bulletin , kept his eye out for a surplus one and lo and behold !!!! Thanks Jono, when you get set-tled into married life I OBGGGGG will reward you with models and gear and mem-bership to the club (OBGGGGG’s step grandson and keen about model aircraft)

It is with pleasure and regret that it seems that we are not now the NDC champion club for 2017 as according to the published results that position has been taken by Allan Knox’s Wellington club. We got second!!! Now if Dave Jackson was still in our club his points would have allowed us to win, but as they say that’s life. It just shows you that those CMAC trained modelers who are now flying for other clubs have lifted the NDC game and long may it be so. We still have some glory with Lynn Rod-way being Free flight champion and runner up to Allan Knox in the individual championship with 4th equal placing (with Bruce Weatherall) in the vintage champi-onship.

By the time you get this bulletin I should have installed the new anemometer head to our weather station, so hopefully it will now rotate more readily.

OBGGGGG

Club website http://cmac.synthasite.com

Indoor report ??????? Bill Long has admitted that he isn’t up with this new fandangle “Windows 10” program that he has installed on his computer and is waiting for his FREE IT guru to come back from overseas to sort him out. Results for F1D are Bill Long 1081 Kay Long 1009 Next meeting is F1L on 11th February.

More Word explanations Flatulence is not an emergency vehicle that picks you up after you have been run over by a steamroller Gossip someone with a great sense of rumour

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February 2018 8 FF P30 February 2018 9 FF Open Rubber February 2018 10 FF Open Power February 2018 11 FF FAI F1A Glider February 2018 12 FF 1/2 A Power February 2018 13 FF Open Tissue February 2018 14 FF FAI F1L Indoor Rubber February 2018 107 VINT FF Vintage Power Duration 

February 2018 108 VINT FF Nostalgia Power Duration 

February 2018 109 VINT FF Nostalgia Rubber Duration 

February 2018 110 VINT FF Classic Rubber Duration 

February 2018 111 VINT RC Vintage 1/2A Texaco 

February 2018 112 VINT RC Vintage E Rubber Texaco  

February 2018 113 VINT RC Classical IC Duration 

February 2018 69 SOAR  Thermal A (Open) February 2018 70 SOAR  Thermal H (2 Metre Glider) February 2018 71 SOAR  ALES 123 Class N February 2018 72 SOAR  X5J Unlimited Class O

FEBRUARY 2018 NDC EVENTS

3-Feb-18 Saturday Pylon 1300 -1600hrs Willows

4-Feb-18 Sunday F/F-VINT NDC Events 0900 - 1200hrs Willows

10-Feb-18 Saturday Soaring NDC Events 0900 - 1200hrs Willows

11-Feb-18 Sunday Indoor NDC Events 1300 -1500hrs Templeton

17-Feb-18 Saturday Pylon 1300 -1600hrs Willows

18-Feb-18 Sunday F/F-VINT NDC Events 0900 - 1200hrs Willows

24-Feb-18 Saturday

25-Feb-18 Sunday F/F-VINT NDC Events 0900 - 1200hrs Willows

25-Feb-18 Sunday TOMBOY 0900 - 1200hrs Willows

25-Feb-18 Sunday BBQ Day 1130 - 1230hrs Willows

25-Feb-18 Sunday Soaring NDC Events 1300 - 1600hrs Willows

Note : there is no club night for February

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MARCH NDC EVENTS 2018

March 2018 FF Indoor Hand Launch Glider 15

March 2018 FF FAI FIB Rubber 16

March 2018 FF Kiwi Power 17

March 2018 FF Kennedy Precision 18

March 2018 FF Aggregate 19

March 2018 FF Tip Launch Glider 20

March 2018 FF Hanger Rat 21

March 2018 VINT FF Classic Glider Duration   114

March 2018 VINT FF Vintage Rubber Duration  115

March 2018 VINT RC Vintage IC Duration  116

March 2018 VINT RC Vintage E Duration  117 

March 2018 VINT RC Classical E Duration  118

March 2018 SOAR  F3K Tasks B,D,G,H only (total raw scores)

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March 2018 SOAR  ALES 200 Class M (Scoring per 3.13.7)

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March 2018 SOAR  ALES Radian Class P 75

3-Mar-18 Saturday Pylon 1300 -1600hrs Willows

4-Mar-18 Sunday F/F-VINT NDC Events 0900 - 1200hrs Willows

6-Mar-18 Tuesday ANNUAL GEN-ERAL MEETING

1900 - 2100hrs Condell Ave

10-Mar-18 Saturday Soaring NDC Events 0900 - 1200hrs Willows

11-Mar-18 Sunday F/F-VINT NDC Events 0900 - 1200hrs Willows

12-Mar-18 Sunday Indoor NDC Events 1300 -1500hrs Templeton

17-Mar-18 Saturday Pylon 1300 -1600hrs Willows

18-Mar-18 Sunday F/F-VINT NDC Events 0900 - 1200hrs Willows

25-Mar-18 Sunday F/F-VINT NDC Events 0900 - 1200hrs Willows

25-Mar-18 Sunday TOMBOY 0900 - 1200hrs Willows

25-Mar-18 Sunday BBQ Day 1130- 1200hrs Willows

25-Mar-18 Sunday Soaring NDC Events 1300 - 1600hrs Willows