All posts by David

Short Course R/C Racing – My Novice season just about over.

The journey started in mid October. I was in Port Orchard, having a beer and pizza with some friends, when one of them suggested we drop by the R/C track in Bremerton afterward. I’d never heard of an indoor R/C track in the area. I used to have a couple of the early electric R/C cars back in the 70’s and 80’s. It was some pretty crude stuff, with speed controllers made of a large ceramic brick wound with resistant wire, and a big sweeping ‘arm’ that adjusted motor speed by moving across the big resistance block. Closer to the end, shorter the wire and faster it ran. You had to sand the arm often to remove the carbon burns, and the resistor brick didn’t last that long either.

Having been into electric R/C helicopters for over a year, I’m quite familiar with the advances in electronic speed controllers. Long gone are the days of that stupid rheostat ‘brick’. What would these modern R/C vehicles looks like and how would the perform? Curious I was. And fascinating it was.

That weekend, I took the kids to the track. We were there until they closed at nearly midnight. The next day I bought my daughter a Team Associated RTR (Ready-to-Run) 1/10th scale Short Course racing truck. And down the slope I slid.

Here is a video from Team Associated. You get an idea of how capable these little vehicles are, and it also includes video of the REAL Short Course racing trucks.

By mid November I’d bought a used truck for myself. Also a Team Associated SC10, but it was far from ready to run, but it was pretty close, all I needed was a radio system and batteries. Soon I was at the track a couple of days a week, practicing, watching and learning the ropes. Come December, I’d started racing in the Novice class.

I had a lot to learn, and a lot of stuff to repair on the truck. The best part about it was the upgraded NOVAK 13.5 power system (still qualifies for stock class), the ball differential and a big set of extra tires and wheels. In the first week I replaced the trashed Lexan shell with one I ‘custom’ painted for myself.

SC10 Racing Bodies, New and Old.

Within a day, I had this little gem:

My first SC10.

By the end of December, there were three, one for each of us.

Team Associated R/C trucks

When January started, I was pretty consistently racing 2 nights a week at the track. I was addicted. I’d bought a set of high-C (high burst capacity) batteries, transitioning the original 20c batteries I’d purchased (about $60 each) to the kids. Soon I had a pretty good setup of 2 35C 3800mAh qualifier batteries and one 50C 5000mAh battery for the longer Main. I used to laugh a little inside at the massive kits these guys would show up at the track with. Rollers, piles of chargers, tools, tires, gear sets. But soon, my pit was starting to look more and more like the others.

SC10 truck in the pits during Monday Races at Bremerton RC Raceway.

R/C racing is challenging. It’s one thing to race well while sitting in the driver seat, feeling the vehicle move around, literally using your gut feelings about how the vehicle is handling. It’s entirely another thing to understand those dynamics, from 50′ away, using only your eyes. However like with most things, you start to train your brain to perceive and understand the subtle messages the little vehicle is sending. And when you understand that, and you start to hone your skills, it starts to be come amazingly fun. Then, the competitive streak kicks in. And you just don’t want to get around the track once without crashing, you want to WIN!

But to win, you need to at least be playing on a level field with your competitors. As I wandered around the pits, checking out my competitor’s vehicles one thing became quite clear. There was one model of truck the really fast guys were running. The Team Associated Factory Team SC10. The writing was on the wall. I had to upgrade.

Now, when we first started this adventure, the attractive, glossy Factory Team kits on the shelf in the store got my immediate attention. And so did the price. The Ready-to-Run Trucks (pre-built, just add battery) were $290. The Factory Team kit was only $250. So I of course inquired. The Factory Team kit was full of up-line parts, like Titanium suspension components, updated performance threaded shocks, and a heavy dose of Aluminum fasteners (instead of carbon steel) and carbon fiber. But, it had not motor, not ESC, no radio, no servo. To totally kit out the Factory Team would require another $110 for a basic radio, $50 for a good metal-gear servo, $250 for a motor and ESC. Add that to the price of the kit (which you have to build mind you), and you’re talking $660. That’s a lot more than the $290 for the same basic chassis, a pre-pained shell ($50), r2.4GHz radio ($100) and motor and ESC system ($140 – don’t ask how I know that). So, the RTR was what I bought (the RTR SC10 belongs to my daughter and the RTR truck to The Boy), and for a while, it was plenty awesome.

But racing is most fun when you think you can win. Because of this, mid-January I stopped thinking about it, and pulled the trigger on a brand new truck kit, the SC10 Factory Team.

SC10 Factory Team.

Thankfully, I’d taken the old truck apart and put it back together again many times repairing things, so I knew what I needed to do, to put it all together. But, wow.. I didn’t expect it would take me about 2 days to get it done! From assembling the titanium turn buckles, to installing all those little fasteners, radio, motor, servo, BUILDING the 4 shocks (and all that includes such as working the air out of the shocks, time consuming), setting up the transmission, selecting gearing, gluing up the tires. It’s a lot of little work!

If I’d bought a kit for my daughter, stead of the Ready-To-Run, I think we’d been far too paranoid to break it, and would not have had nearly as much fun.

First time on the track, I ran the WORST race so far. I was horrible. It was horrible. I could not get the truck to jump, I could not get it to turn, I was really, REALLY thinking I’d made a $300 mistake (bought a pair of Panther front tires at the same time, stock fronts are worthless). It was frustrating. But, the great group of people that work and volunteer at Bremerton Radio Control Raceway were amazingly helpful. Eventually, I was running consistently enough to get a #1 position in qualifying.

Running the #1 plate for qualifing.

On Wednesday night, 26-JAN-2011, I finally won my first A Main race! Still running in Novice class, it was not a track roasting run, but I did dominate the race, leading almost all of the 13 laps. And my average lap times would have put me in the middle of the pack for Stock Short Course, racing with the regulars (and my regulars, I mean the guys I see there every night).

So, it looks like my lazy, hazy dayz in the Novice class are starting to come to an end. One more Novice Main win and they will bump me to the ‘Big Boys’. I’m going to need to keep stepping up my game if I plan to compete there! If all goes well, I should have only 2 more Novice races in the next week (Monday and Wednesday night).

Wish me luck?

Monday night R/C Racing at BRCR

Monday night was another great time down at Bremerton Radio Control Raceway.

On the heels of the 4 hour Enduro race just 2 days before, turnout was pretty light for a Monday night. In fact, there really wasn’t enough depth in each field to run the normal Novice, Stock and Open class for each vehicle type. So, instead of being able to race in Novice class, I was pitted with the Stock and Open truck racers that have been doing this for a long time. It was going to be a learning experience!

This week I was prepared with plenty of battery power, a dialed in rear differential, upgraded toolbox and new carrier box too. My pit space was a lot more organized than last time.

SC10 being prepped for the first race.

We ran 2 heats and a main event for “Truck” and “Buggy”. I held my own in the first two heats, finishing near mid-field, and certainly not last. I’d learned quite a bit in my first race the week prior, and it was paying off.

At the end of the first two heats, I have qualified 6th in a field of 10. Not amazing, but better than I had expected, considering I was not racing all Novice racers, and not all stock trucks (some of them were a lot faster on the long straight than my 13.5 powered sled).

We ran a 10 minute main event. It was chaos. Lots of vehicle contact, more a lot of rollovers. We kept the track marshals very busy. About 15 laps or so into the race I was starting to find my pace, and able to get all the way around the track without a running across the edges, without crashing out (without being crashed out by others) and hitting a pretty good rhythm on the double-double and double-triple jump sections.

To my pleasant surprise, I managed to cut a couple of very fast laps, that got the attention of the race caller and timer. What I noticed on the runs I did really well on, despite a sea of surging Lexan, if I put all the other vehicles out of my mind, not looking at relative speed to the other races, or where they were lining up their trucks, basically running like I was the only person on the track, I was much smoother and much faster. Sure, a couple of times I got pitted around by another truck, and I did t-bone another racer on who was much slower on the long straight, but, nobody got broken, and neither of us had to be recovered. It’s not going to be a strategy that will work 100% of the time, but I found that greater concentration on the line that is best for MY truck, my tires, my drivetrain and skill, I do much better.

In the end, the 6 1/2 hours I spent at the track testing, tuning and finally racing was so much fun, I was smiling for hours and hours afterward. And one of the test parts of all this, the 6 1/2 hours of entertainment, and friendship, cost me a grand total of $9.37. That’s a pretty good value, don’t you think?

SC10 ready for action. But not so pretty any longer.

Day the world came crashing down

Yes, a day I will never forget.

Partially, because it as so absurd. And partially because the sound of my Real Estate agents voice, when I told him what I saw, while looking out my front door:

A wall of green. Oh, this CAN'T be good.

While cooking breakfast for my kids, one blustery morning, I was startled by what sounded like a lunatic kicking in my front door. As I rounded the corner, I saw that the door was in fact, now, wide open, and.. there was this very powerful sent of… of… evergreen. A few milliseconds later, steeled for confrontation with whatever insane manic was now in my house, I realized, I was not facing a mortal man, but a 120′ giant, lying, outside my front door.

What *is* that smell?

Now, I’d had a few odd things happen while I was trying to sell this (wonderful, honestly wonderful) house. This provided me with much entertainment as I casually mentioned these things to my astounded, horrified and otherwise good sport of a Real Estate agent. Like the time the Coroner was at the house, big black city Medical Examiners van parked right in front of the house. Hey, it looked like the dog has dug up human knee, very cleanly butchered, so I called in an expert. They removed, the remains and that was that. So when I called to ask what the next step was, if say, a 100′ tree fell across the property, he proceeded to chuckle, and tell me about the next planned Open House. It took a few minutes to convince him that I did, in fact, have said tree, on said front lawn, and he might want to come out and see if this could be possible issue in the sale of the house.

Fortunately, the damage was relatively minor, a section of the fence was modified

Hemlock, nature's little fence guillotine

My little cargo trailer took a little bit of a beating as well:

All is not lost. The tree is also nature’s way of meeting neighbors:

Neighbor Sara drops by to 'help'.

At least potential buyers could see a little bit of the house, even if they couldn’t get to it (and yes, a number of people came to see the house that morning).

This is the estate's security barrier.

Humans, so full of hubris. Here’s a little reminder from Mother Nature that she doesn’t give a flying sack of crap about us, she’s gonna do whatever she damn well pleases. Fences? Nature does not recognize fences.

R/C racing on Monday Night.

This past Monday, I took the plunge and ran my first full race with the re-bodied SC10 truck.

SC10 truck in the pits during Monday Races at Bremerton RC Raceway.

It was a real blast, but I have A LOT to learn about truck setup before I’m going to be competitive. The most challenging issue I’m facing right now, is the speed of the steering servo. It’s too fast! It makes the truck feel really loose. When hitting full throttle down the main straight, it’s very difficult to put in a little steering correction. Instead, I’m finding myself loosing control, needing to slow down, and often getting passed while trying to regain control of the truck.

The RC controller I have is made by Futaba. A well known, and respected name in Radio Control for decades. Checking through the manual, I was disheartened to find the radio I’m using does not have any ‘Expo’ (a configurable low-action or dead-zone) settings. It does, however have a Dual-Rate capability on the steering channel (#1), which might allow me to tone down the very fast steering servo. My concern, having not tested it, is that it might make the steering too slow, making the better servo a moot improvement. :/ Things you learn, right?

Even more daunting that the steering issue for me last Monday, was the fact that 45 minutes before the first heat race, I completely destroyed the stock rear differential I’d put after breaking the output shaft on the race differential that came with the truck. Ugh! With not much time, I had to rip apart the entire back end of the truck, remove the transmission, split it’s case and try to slam in a brand new Team Associated ball differential. With the cost of a rebuild kit of the stock costing $30, and a complete new competition ball differential being $40, the decisions was pretty easy. Go for the adjustable diff and learn to set IT up as well. Having been a racer for a long time (full-sized vehicles, that is), I’m well versed in the climbing of the learning curve. You just have to do it. Good racers have a lot of wheel time.

Upside for me, was that Brian (owner of BRCR) was kind enough to build the differential for me, while getting everything else ready for the race, so I could concentrate get the truck apart and back together in time for the race. Final 5 minute call to line up for the race came as I was putting in the last two screws. I selected one of my qualifier battery packs, ran from the pits down to the track and got in line, JUST in time for first heat.

I finished last, several laps down from the leaders, but it was great experience, a lot of fun, and I plan to race again this coming Monday, assume I’ve not broken the truck in the mean time. 🙂

Re-Bodied the SC10 R/C truck.

The old Mod-class SC10's body shell.
With a few days off, I finally got around to working on a new body for my SC-10 R/C truck. I bought the truck used back in November, and the body on it was trashed. Tires had worn through the paint in the tops of the fenders, every corner was ripped and flapping around, and it was about as visually exciting as a Keanue Reeves movie.

There were a number of options available for the truck from both the OEM (Team Associated) and aftermarket supplies. Prices ranged from $30-$50. There are likely differences I’ll never be aware of, but for me, I decided the $30 OEM body (a Ford) was just fine for me.

Now, the tricky part of working on these things, is the bodies are made of Lexan. Lexan, is a flexible, tough but a rather ‘oily’ feeling plastic, so you need a good paint. One that will adhere to the material, and is formulated with a lot of flex agent in it. These bodies take a beating!

$12 for two cans of spray paint and a couple of hours in the garage, and I was underway. The kit comes with masks for the windows, which were easy apply. This makes the production of a decent looking shell (body) a lot easier. It’s also supplied with a few of the standard Team Associated body decals. There are no sponsor decals in the kit I purchased.

One thing some readers might not be aware of, is that they shells (bodies) are painted on the insider, not the outside. This has a variety of benefits:

  • Durability – these things crash, A LOT and paint on the outside of the bodywork would not last long. The decals are very thick vinyl, and they still show the wear of normal abuse
  • Aesthetics – which is akin to the durability already mentioned, however, when one paints these shells, one can be, well, I’ll just say that one can be less than meticulous in your painting, and yet the appearance is always bright, shiny and smooth (at least until you send the thing sliding down the track on it’s roof, which you will do).
  • Others – there may be others, but at this late hour, I’m unable to consider them

Now, not only do you paint these on the inside, which requires some planning. You can’t simply paint over a mistake, it’s there, on ‘top’ of the paint, for all to see. You can’t just ‘re-paint’ over a mistake. So, plan wisely, paint the darkest colors first, then go to the lightest. Often it’s best to finish up with a white ‘backing’ color.

After the pain is applied, next you’ll need to get out another special tool, Lexan compatible scissors, to cut the vacuum formed shell to it’s final shape. Cutting out the wheel openings, wings (if it’s equipped with such), number boards, etc. It take a little time to get one of these things from this:

Standard unpainted SC10 body.

To this:

SC10 body painted and trimmed.

And finally this:

Final result. Custom painted SC10 Championship body, ready for action.

From start to finish, it took about 36 hours (wall clock) to complete. Effort required, about 3 hours for masking, painting and trimming. And, a lot of waiting while it cured.

I’m pretty happy with the final result, and the old used SC10 looks right at home with it’s brand new stable mates, an Associated T4.1 Truck and an Associated SC10 Short Course (Makita RockStar):

Unfortunately, in the first lap running full-power with the Mod SC10, I blew up the roller-ball limited slip differential. But, that’s an article for another day:

One broke truck.

Amazing VW ‘Glass Factory’

Thanks to the mail list I’m on, this video appeared in my mailbox today. It’s a 6 1/2 minute (you won’t believe it how quickly you find it’s over) tour of a new VW factory in Dresden Germany.

Give it a watch. Although I’ve only had one VW, this same ‘passion’ (can that be used for Germans?) for construction of cars is why I never buy anything else.

Enjoy.

EARTHQUAKE!! OK.. it was only a 3.9

Just before 8:00AM, while reading, I got that sinking feeling. “Hm.. crap.. that’s an earth quake!”. It was mild, sort of like the little warning you’d get when a big-un is about to unleash some havoc. Then.. quiescence. But, you know a quake when you feel one. It’s nothing like a bus or truck driving by.

At any rate… about an hour later a friend of mine shot me a link from the Seattle Times, so I went and checked the USGS site again (my first check was only for my local area.. it was so small I figured it was local). Turns out it was far away, far south of Olympia.

M3.9 – Washington

Magnitude 3.9 - Tuesday, November 16, 2010 at 15:51:08 UTC

At least my PTSD did not kick in this time, although, I did start to get a little anxious. Geez. PTSD sucks… really.. I can’t image how bad it can get for our troops..