KristofferR's blog View Details
Archive for July, 2016
Posted by KristofferR | Jul 17, 2016 @ 02:24 PM | 5,733 Views
My brushed Traxxas mini e-Revo (1/16th scale, MERV for short) tends to cook its supplied NiMH battery unless lots of care is taken to drive slow or make frequent pauses. The amp draw is simply too high.

I searched around and decided to buy a pair of LiPO batteries from HobbyKing and connect them in parallel; thus dividing the power load, increasing drive time by 3-4 times and getting the left-right weight difference balanced. The original NIMH is in the 1200-1500 territory and the choice I made was two Zippy Flightmax 2s 2200mAh. I think they will handle the brushed 12T motor with ease. Getting 4400mAh, less internal resistance and less heat should increase both speed and runtime.

As usual, all connectors are different depending on manufacturer. The Zippys have XT60, the MERV has Traxxas. The Tetons have Tamiya and my planes have Multiplex MPX M6; mainly because I have had a number of RR and RTF Multiplex planes.

I did not want to start supporting Traxxas connectors too so I spent some hours changing connectors and making a few adapters and a parallel Y-cable for the MERV LiPo set using M6 connectors. The NiMH from the MERV got a Tamiya connector to fit the kids Tetons and the HK crimping tool worked great to clamp the Tamiya pins.

The last thing I did was to bring out the multimeter and checking resistance of a few different adapter combos and all seems well. Looking forward to the test drive!
Posted by KristofferR | Jul 14, 2016 @ 06:14 AM | 5,062 Views
Yesterday at the slope I shot a clip of Dan slope soaring his LS-1. It whistles nicely when the speed goes up.

I brought my Phoenix 1600 and my Funglider. Upon arrival, the Phoenix turned out to be a Phoenix 0. The wings were in the shed and I never looked in my glider bag when I slung it over the shoulder

The Funglider did perfect. I did the "tape treatment" on it to smoothen out the surface around the wing spar and servo cutouts and it does really increase top speed and penetration. It's still my favourite plane ever.

This time I made a bluesy soundtrack for the clip.

LS1 large RC glider slope soaring at Vallda Sandö (2 min 19 sec)

Posted by KristofferR | Jul 01, 2016 @ 05:04 AM | 5,630 Views
I went to visit my brother in LA and we took out kids to the closest track, OCRC to check it out. We rented an RC10 buggy on the spot for an hour and took turns on the big track and then let the kids have a go at the small track.

Awesome place with nice friendly staff in the shop and likewise on the drivers stand. The rental car was perfectly sorted and ran flawlessly the whole session despite some mind-bending saltos and missed gap jumps. We ended up driving, marshalling for everyone and watching the ace drivers clearing the big jumps and doing whip-like corrections in the air.

Carl, ever the racer, was soon upping the pace and excitedly talking about throttle and steering settings and ways to control the vertical part. I truly enjoyed the drive, the first RC10 was a dream car of mine and to drive the latest iteration on a proper track in California was beyond awesome!