Tag Archives: Rob Jonkers
A wet and cold PTAR 2022
A wet and cold PTAR 2022 at New Tempe Bloemfontein – By Rob Jonkers
This year’s Presidents Trophy Air Race was held at New Tempe Bloemfontein, and traditionally held on the last weekend of May, but with the advent of the Botswana Air Show also taking place on the same weekend it was decided to move it a week earlier, which if we all had the perfect hindsight, with that event not happening, we could have held it on its traditional date, and subsequently avoiding this last few days of most unseasonal weather that befell the race weekend.
This year for sure has had many of the planned aviation events disrupted by wet, cold, windy weather systems, the most bandied about term of “cut-off low” being used to describe the weather situation. This weekend no less had a very large cold front coupled with an intense low-pressure system over the centre of the country affect the plans to race.
I arrived on Wednesday in excellent weather conditions and started setting up for the race, mostly the race control room and preparing for test flights, some of the early competitors also started to arrive at the field. Thursday saw all the aircraft arrive, some of the Cape based teams first had to wait for the front to pass before setting off, arriving just before dark. Most of the day was taken up by flight tests and registration and watching what the weather would be doing for the next day as the front was approaching.
During the first extensive Thursday afternoon briefing which also included the SA weather services team being on hand to give us the best outlook it appeared that there may be an early morning flyable gap, thus the day was planned with an early 7h30 start. As Friday dawned, it looked promising, cloud base was at a reasonable 1000 ft, and we proceeding briefing and sent the turnpoint marshals to their locations, this being particularly important to get weather condition updates from them at the furthest corners of the route.
As the morning progressed with a planned 10 am first take-off, the news from the turnpoints were not good, and then light rain started, it was then decided to scrub Day 1 with a debrief at 11 am to plan for the next day. The prediction for Saturday would be that the weather would improve from midday onwards. Everybody dispersed for some rest for the rest of the day.
Saturday dawned with flyable conditions, and in fact the window opened up from 11 onwards, thus at briefing the first take-off was planned for 11. The turnpoint marshals were sent out, who from the previous day’s rain had challenges of negotiating almost impassable roads to get to their intersections, fortunately they all sent in confirmation of being in position prior the first take-off.
This year’s field attracted 37 entries, which is very low by PTAR standards, which would normally have 60+ competitors, this year for sure the cost impact would have been affecting most would be competitors, given the fuel price virtually double that of last year at the same time. Three competitors had to withdraw mostly due to not being able to get to the event on time, thus we had 34 starters.
With the airfield being water logged, we decided not to move the aircraft from where they were parked, and carried out scrutineering in-situ and changed the papers time with a few additional minutes for the crews to collect their maps and route envelopes, which worked out well. The ground marshals were also very efficient in getting the start order taxying out at their allocated time. With the race under way, and having a cross over route, we could all watch how the order of the aircraft would be coming back over the field which was at around one third race distance.
Although the traditional race finish would be at 1PM, and given the weather window having a later than normal start, the finish was planned at 13h45, and as the time got closer to finish, the weather was threatening to deteriorate, with sudden cold and dark clouds forming just east of the field, which fortunately stayed away. The line finishers were close between Race 2 Bosbok, Race 14 Piper Commanche, Race 45 Harvard. With spacing between aircraft at the start being required to keep a safe distance, the finish order became Race 45 Harvard ZS-WSE, Race 9 RV-7 ZU-VZJ, Race 14 Piper Commanche ZS-NXG, who were the handicap winners.
Prize-giving was held at the Windmill Casino, which had laid out an excellent banquet hall for all the teams, club members and officials to enjoy. The evening started with a short debrief of the race, some of the best and “interesting” tracks being shown. Race 19 had a “long” day having lost their way at turnpoint 1 continuing northwest for 20 nm, before realising their error, they had the presence of mind to return to that first turnpoint, and continue from there to fly a good race further, only picking up one penalty, but of course adding almost 40 minutes to their time.
After the main meal, David le Roux the Race Master started the proceedings for the rest of the evening, first up Franz Smit who introduced and thanked all the sponsors supporting the race, Pilot Insure, Holborn Assets, Aircraft Finance Corporation, DJA Aviation, Century Avionics, and all the local Bloemfontein sponsors, Leon Bouttell was up next as the SAPFA Chairman, and at this point announced that Rob Jonkers would be standing down as Race Director, the baton being handed over to Iaan Myburgh.
Rob took to the stage thanking all for their support since 2018 when the Race was handed to him, at the same time an evolution of the format having been developed to today’s standard of a 10 turnpoint race limited to 300 nm, with an accuracy component added as well. There is still much discussion about this race format and its merits compared to the traditional 4 corner race, and this will be for the next Race team to work together with the racers for their input. Just as Formula 1 evolves with technology improvements, so must the PTAR evolve to take into consideration changes in technologies utilised, such as GPS based heading reference devices, different engine types that have variable power settings, these all affect the handicap speeds and course accuracy.
Rob went on to thank all those involved in the race organisation, particularly the Bloemfontein Flying Club under the key organiser Andre Grobler and experienced PTAR event coordinator, who had provided the ground marshals, turn-point marshals, and all the catering at the airfield. Nigel Musgrave as the Safety Officer with the ATNS team of Ricardo Afonso, SA Weather Services, ARCC, Bloemfontein Emergency Services team of Braam van Zyl, the CAA Special Air Events team, the local Municipality & SAPS.
After this the long awaited Prize Giving was held, with 24 trophy categories being handed out, up until the top 3 places, with third place going to Race 9 RV-7 ZU-VZJ with crew of Johan van Zyl & Eric Addison, second place going to Race 45 Harvard ZS-WSE with a crew of John Sayers & Dion Raath, and the PTAR trophy going to Race 14 Piper Commanche ZS-NXG crewed by Stefan Lombard and Martiens Marais.
After this the PTAR flag was handed over from BFC Chair Deon Loots to Jock Nel the Chairman of the Middelburg Aero Club as the 2023 PTAR event location. Thanks go to everybody who makes this event a success, especially the volunteers who take time out to assist, also the media who are key to promoting the PTAR.
Click on the photos below (By Rob Jonkers)
The Witbank Speed Navigation Rally
26 March 2022 by Rob Jonkers
This first of the 4th Season Speed Rallies for 2022 has been held at Witbank, organised by SAPFA and hosted by the Witbank Aeronautical Association. This is the 3rd event held at Witbank in the series, which also had to be postponed due to weather issues on the original date of 5th March, the weather forecasting being fickle at best, but looked eventually flyable on the 5th, and as Competition Director you are damned for making those weather related calls…. one way or the other, especially up here on the reef where weather changeability is so prevalent within hours.
With the change of date also saw some competitors having to withdraw and at least others could join. Similarly we had officials planned that also had to drop out, but the WAA stepped up with an additional ground support team to help out, with the end result we had a fun & safe event.
There were 20 entries, but with the early morning weather situation on the highveld, many attempted to get to Witbank, but had to turn back or could not take-off, reducing the field to 15. Only two competitors had arrived on Friday before significant thundershowers made their appearance.
The traditional Friday evening briefing was cancelled, so the full briefing was then planned for Saturday morning, where after the club provided a nice Friday dinner spread and for the teams, officials and club members, before retiring for the evening.
Saturday morning dawned with more promising weather, the predicted low cloud did not materialise, and by 9 am the cloud base had risen to around 6000 ft, with light and variable wind. The briefing was delayed to 9h30 am and was concluded at around 10 am, where everybody dispersed first for a group photo and then to park their aircraft and prepare for the scrutineers. The route for the day was one with a cross over to the east of the field, with the first series of legs to the north-west, and the 2nd series of legs to the north-east.
1st take-off was planned at 11h20, and arrivals at 12h45. With all the competitors off towards the northwest, the route had a mix of easy and challenging turnpoints, especially TP6 which required good navigating skills to find the dust road intersection from amongst the same colour surroundings, from the results this turn point seems to have been difficult to home onto. There were two groups coming over the line, those that were a bit early as they had got waylaid along the course and a group that were accurate with their navigating skills getting over the line close to their handicap times.
After all teams having returned and safe on the ground, the scoring team got to work to analyse the results, with the tracks for a number being quite accurate, although some had wobbles, three had got significantly lost. As everybody essentially left for home, it was left to the scoring team to complete their work off line, and hold a virtual prize giving as done at previous events, which was done at 8 PM.
For the Navigation Accuracy category, third place went to Quintin Kruger & Johan Whiteman in their Cherokee 235 ZS-FVV, in 2nd place Apie & Frederick Kotzee in their Robinson R66 ZS-HRS, and in 1st place Hendrik & Jandre Loots in their Sling ZU-IHK.
For the Handicap/Speed category, third place went to Quintin Kruger & Johan Whiteman in their Cherokee 235 ZS-FVV, in 2nd place Hendrik & Jandre Loots in their Sling ZU-IHK and in 1st place Apie & Frederick Kotzee in their Robinson R66 ZS-HRS.
Overall Winners in third place went to Quintin Kruger & Johan Whiteman in their Cherokee 235 ZS-FVV, in 2nd place Apie & Frederick Kotzee in their Robinson R66 ZS-HRS, and in 1st place Hendrik & Jandre Loots in their Sling ZU-IHK.
Many thanks to the Witbank Aeronautical Association for hosting this fantastic event, supporting with logistics and great meals available throughout the day, Nigel Musgrave as the Safety Officer, Iaan Myburgh doing the scoring, as well as taking up the Deputy Event Director role, Marc Robinson with his team from Century Avionics for Scrutineering, Martin Meyer & Hans Schwebel for doing Starting. Thanks also extended to ATNS for supporting ATC for this event..
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Also thanks to our sponsors, who sponsored our sponsored teams, Prompt Roofing, Beagle Tracking, Gem Air and Aviation Direct.
Our next Speed Rally event will be in Kroonstad on the 25th June 2022
Nice perfect Track
Oops – Turned a bit early on most of the turnpoints
Click on photo below to enlarge
The SAPFA Secunda Speed Rally
The SAPFA Secunda Speed Rally – 28 August 2021 by Rob Jonkers
This year we have returned again to the birth place of the Speed Rally, being the 4th time this event has been held here, with 2018 the start of Season 1, and from 2020 having re-aligned the Speed Rallies to calendar year seasons, with this event being the 3rd event in Season 3, with the final event for Season 3 being at Springs on 27 Nov 2021.
With lockdown still at level 3, we limited the entries to 25 teams, and 22 had entered by the time the event entries closed on Friday 27th August. Our host club with Chairman Ashvir Kallis and Vice Chairman Lourence Mathee went all out to support the event, making the club facilities available and a braai for the Friday evening. The Aviation Junction flight school made their school facilities available for the scoring and officials team.
The weather outlook was looking challenging as the weekend was approaching, many warnings of severe cold and high winds predicted from a substantial cold front, and at dawn on Friday much low cloud and rain squalls made their appearance across Gauteng, which cleared later but with increasing gusty wind conditions. Having left Kitty Hawk at 10 am, caught a 30 kt tailwind to Secunda and had to deal with a 15 kt crosswind on landing. Around half the field chose rather to arrive early on Saturday, with some test flights also delayed to Saturday morning. The test flights were ably handled by Mauritz du Plessis and Iaan Myburg, with Iaan also taking up the role of scorer for this event having developed new scoring software.
At 18h30, Jonty Esser as the MC and Race Master introduced Rob Jonkers who took to the stage and provided a briefing on what to expect for the next day in terms of the planned route, how many turnpoints, distance, departure and arrivals protocol, and also how the scoring system would world work and the expected weather conditions. This year’s route would include a cross-over, which would bring more spectator interaction as the aircraft came over the field at the half way mark.
Jonty Esser then took to the stage in his signature competing crew introductory theme song videos and race number handouts, and also including introductions to the team sponsors, which has picked up this year after a disastrous 2020, and great to see the sponsors returning to support their teams. A scrumptious braai was laid on by the club to end the evening with around the fire stories on a high note.
For Saturday the briefing started at 8h00, which was a shortened version just to cover the basics of the route, radio procedures and weather, which at least had improved wind conditions from the Friday, starting out at 10 kts with a maximum of 15 kts predicted in a westerly direction, which would at least be favourable for runway 29. Some line squalls were also in the area, with the cloud base at least more than 1000 ft, with good visibility.
With the briefing over, teams prepared their aircraft, while the organisers got the papers ready. Each team would then receive an envelope with a map, turnpoint photos, a minute marker and a GPS logger to record their track. Aircraft were then also scrutineered with all portable electronic devices sealed up in bags. For this event Mark & Shane from Century Avionics were on hand to also block off / seal Aircraft GPS and autopilot systems, and also checking the fuel tanks were full.
The Pilot Insure Scrutineer Team were on hand to seal up all portable GPS capable devices, with the papers team under guidance of Lizelle handing out papers at the allotted time, Chief Marshall Adrian Cronje and Starters Mauritz & Chareen set up at the starting line adjacent the threshold of Runway 29, who would release each aircraft at their allotted time slot. Each team then received their envelopes with their loggers at 20 minutes prior take-off time, taxi to the starting line within 10 minutes of brake release. 1st take-off was at 10h20 for the slowest aircraft which was a Magni Gyrocopter (the first time a gyro has taken part) and last take-off at 11h10, with planned arrival at 12h00.
With all the competitors off towards the south west, the route had a mix of easy and challenging turnpoints. In general the competitors found the course easy enough. At just before 12h00, the first aircraft over the line was a little early, and then followed by at least three quarters of the field within 1 minute, with tail enders after that.
After all teams having returned, the scoring team got to work to analyse the results, completing the individual scores by 14h00, with prize giving planned for at 15:00. In the meantime, most of the competitors being concerned over deteriorating weather decided to return to their home bases, thus a call was made at 14h30 to rather hold a virtual prize giving, which Race Master Jonty carried out at 5 PM on the WhatsApp platform. MC Jonty Esser thanked everybody in the Speed Rally series for their contributions.
The winners in the handicap category were Deidre Batchelor & Dave Naude in their Jabiru ZU-EBU, in second place Mike Blackburn & Steve Briggs in a Sling ZU-IBM and in third place the Evans Racing team Jonty & Jonathan Esser in their C150 ZU-BLL. The first thirteen placings were the only crews who managed a clean penalty free round.
The winners in the accuracy category were the Gem air sponsored team of Phil Wakeley & Mary de Klerk in their C210 ZS-CNY, in second place Fanie Scholtz & Herman Haasbroek in their Sling ZU-FZF, and in third place Leon Bouttell & Martin Meyer in their Evektor Harmony ZU-FWS..
Overall Standings are in first place father and son Apie & Frederik Kotzee, in second place another father and son Johan Whiteman & Quintin Kruger in their Cherokee 235 ZS-FVV, and in third place another father & son team of Hendrik & Jandre Loots flying their Sling ZU-IHK. This is the first time the first 3 overall placed teams are all father and sons.
Many thanks to the Secunda Aero Club for hosting this fantastic event, the SAPFA team of Adrian Cronje as the Chief Marshall, Nigel Musgrave as the Safety Officer, Iaan & Tarryn Myburg doing the scoring, Mauritz du Plessis doing test flights and starting, Marc & Shane from Century Avionics for Scrutineering, Chareen Shillaw as the Event Secretary, Lizelle Kruger, Clarissa Dacostaesilva, Ariana Rompel, Leonie du Plessis for handing out competition papers to the crews, the Pilot Insure team under David le Roux for Scrutineering, Jonty & Lizelle & Sandi for putting together an awesome Friday evening launch event, and Anneke Pretorius for looking after officials lunches. Santjie & Jean Marie White were also on hand to ensure all aircraft are accounted for during and post the event.
ZS-CNY – third in the accuracy results
One of the tracks having gone a little pear shaped.
The Aircraft Unlimted Witbank Speed Navigation Rally
The Aircraft Unlimted Witbank Speed Navigation Rally – 13 February 2021 by Rob Jonkers
This first of the 3rd Season Aircraft Unlimited Speed Rallies for 2021 has been held at Witbank, organised by SAPFA and hosted by the Witbank Aeronautical Association. This event was held virtually a year ago at the same venue, and the world of course has changed substantially since then, although it seems yesterday that we were last here.
It has for sure been an event fraught with challenges, from the start of having to postpone it from the original planned date of 6 February as the last throes of cyclone Eloise was still drenching the Highveld, to having to line up a new ground support team (as many of the stalwarts were not available this weekend), to having to ride through a number of mistakes on the day. Nevertheless, the end result was at least a safe and successful rally.
There were 30 entries, quite a full field given the current situation, with a number of local aircraft taking part. Three flight schools entered, Legend Sky from Rhino Park, Mach 1 from Springs and a large contingent with 5 entries from Bird Aviation based at Vereeniging. The weather outlook was predicted to be poor, and on Friday the wind was pumping at between 15 – 20kts from the north-east with 6/8 cloud, with the forecast for Saturday giving low cloud with afternoon rain – seemed the next tropical depression was on its way from the east coast.
The Friday afternoon initial briefing started at 18h00, with Rob Jonkers who took to the stage and provided a briefing on what to expect for the next day in terms of the planned route, how many turnpoints, distance, departure and arrivals protocol, and a weather outlook. After this Jonty did his signature event promotion of handing out race numbers, where after the club provided a nice dinner spread, before retiring for the evening.
Saturday morning dawned with more promising weather, the predicted low cloud did not materialise, and by 9 am the cloud base had risen to above 6500 ft, with a still strong easterly wind. The briefing was held at 08h00 am and was concluded at around 08h30, where everybody dispersed first for a group photo and then to park their aircraft and prepare for the scrutineers. The route for the day was intended to be a scenic one, mostly north of the Loskop dam in the Groblersdal area which has many rivers and hills.
Each team were supposed to get their envelops with their loggers 20 minutes prior take-off, somehow the papers hand-out team received an incorrect time list which showed an hour ahead of when the papers were supposed to be given. Although the first 5 aircraft were given their papers early, once the mistake was realised, a reset had to be brought into effect. 1st take-off was at 09h53 for the slowest aircraft and last take-off at 10h40, with planned arrival at 11h30.
With all the competitors off towards the northwest, the route had a mix of easy and challenging turnpoints, especially TP6 which required good navigating skills to find the canal and road crossing, from the results this turn point seems to have been difficult to home onto. With the windy conditions the aircraft coming over the line were more spread out than before, most competitors were over the line within 10 minutes, with one straggler that decided a visit to Nylstroom was in order….
After all teams having returned and safe on the ground, the scoring team got to work to analyse the results, with the tracks for a number being quite accurate, although some had wobbles, three had got significantly lost.
Getting the results out on time proved to be a challenge, with changes in the scoring system there were some gremlins that had to be fixed, and that required extra time, also with impending bad weather moving in, many competitors started to depart. Aiming for a 2 pm prize-giving was just not working out, and with too few left at the field, it was decided to postpone the prize-giving to later the day, however a small prize giving was held for the most creative route – which turned out to be the Cessna 310 that found its way to Nylstroom, the trophy for the host club, and the most enthusiastic crew which went to ZS-PJK.
Given the additional time for scoring, and having to check of anomalies of the results, particularly the track error accuracy, it was decided to review go-pro footage to assess any auto-pilot usage, which given the size of the files, could only be checked the next day. Once the review was done and no anomalies found, could the results be published, although some mistakes crept in when the prize giving information was compiled. Nevertheless the scores on the leader board results are correct (given on the website), and the trophies granted remain with the recipients as given.
For the Navigation Accuracy category, third place went to Jonty & Jonathan Esser in their C150 ZU-BLL, in 2nd place Phil Wakeley and Mary de Klerk in their C210 ZS-CNY and in 1st place Hendrik & Jandre Loots in the Sling ZU-IHK. For the Handicap/Speed category, third place went to Roger Bozzoli & Nadine Brooker in their Piper Arrow ZS-KFM, in 2nd place John Sayers and Jack Coetzer in their Mighty Mouse Harvard ZS-WSE and in 1st place Mad Dogs Von Hamman and Ron Stirk in their C150 ZS-NBT. Overall Winners in third place went to Leon Bouttell and Martin Meyer in their Harmony ZUFWS, in 2nd place Mike Blackburn and Steve Briggs in their Sling ZU-IBM, and in 1st place Ryan and Chris Shillaw in their Cirrus ZS-ACA.
Many thanks to the Witbank Aeronautical Association for hosting this fantastic event, supporting with logistics and great meals available throughout the day, Nigel Musgrave as the Safety Officer, Dirk and Louna de Vos doing the scoring, Chester Chandler on handicapping, Marc Robinson with his team from Century Avionics for Scrutineering, Chareen Shillaw for taking on the role of starter, Clarissa for handing out competition papers to the crews. Although there were some hiccups, eventually the participants got airborne. Thanks also extended to Santjie White of the ARCC who always watches over us..
Also thanks to our sponsors, Aircraft Unlimited being our signature Speed Rally Brand Sponsor, Flightline Weekly for sponsoring the race numbers, and our team sponsors, Prompt Roofing, Fast Flame Laser cutting, Century Avionics, Beegle Micro trackers, JB Switchgear.
Our next Speed Rally event will be in Middelburg on the 27th of April 2021
Nice perfect Track
Oops – Went to Nylstroom