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Old 12-24-2013, 05:08 PM   #1
Yakfishingfool
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Default Cold, Cold weather flying

I have a calypso I'd like to get out this winter and fly. Not expecting a lot fo lift but worried more about he cold and the lipo. Been thinking of putting a hand warmer, one of the small chem packs under or over or around it. It;s essentially in a foam cooler so some heat should keep it warm. Anybody doing this and aside from the weight and CG any down side?
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Old 12-24-2013, 05:14 PM   #2
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Cold will reduce the battery's ability to delver current. Thats about it.

Don't overheat the LiPo. And a chem hand warmer can do that.
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Old 12-24-2013, 06:01 PM   #3
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leave the batteries in the car while you fly.

I have flown a few times at -12f and have not experienced any issues so far. I did fry a spectrum receiver though. it was mounted so the serve pins were facing forwards and crashed into a snow bank pretty hard. when I dug the plane out the receiver appeared dead

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Old 12-24-2013, 06:46 PM   #4
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On my micros I just made a small foam pouch to keep the wind off the externally-carried 1S lipo, as long as I kept the lipo warm-ish before the flight I got almost full flights out of it, coldest flight -18F.

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Old 12-24-2013, 11:27 PM   #5
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I put the batteries in a cooler with a couple bottles of hot water. That keeps them warm while waiting to fly. Once they are in the plane and operating they make their own heat .

The only problem I've had in the cold is with my hands . To help with that I've recently fabricated a sterno fueled hand warming gizmo. Haven't had a chance to try it in real-world conditions yet. If it works well I'll post pictures!

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Old 12-24-2013, 11:51 PM   #6
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For about $5 I bought a cool-bag. It's about 10" square and high ... with good insulation and zip top.

Keep it indoors open in warm place. LiPo's charged and brought inside house as well ....

Place in bag and close up.

Put in car .. make sure car heater is on nice and warm.

Open bag only when you need to take LiPo out, close immediately.

Once LiPo used and is warm ... put to BOTTOM of bag UNDER the charged ones .. have a marker or bit of tape to indicate used if necessary. The warm used pack will help keep bag warm.

Every so often run up car ... get heater working and blowing into the bag .. it also helps to warm YOU up.

Me ? I love flying in winter ... crisp clean air, blue skies, love it !

Nigel

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Old 12-25-2013, 01:36 AM   #7
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Hey guys,It's -15 f in central Wisconsin, USA. Kinda new to foamies.No problems with the batteries,but I learned one thing today. I set one down on some hardpack today, ya,maybe alittle bit hard,he he. The plane was put together with hot glue and gg. The gg held alright but, every hot glue joint let go. Didn't break anything, it just came all apart. Hot glue is turned to glass at these temps,just like your fingers.As for my preference, I'll take the not so pretty 75 degree days. Merry Christmas everyone.
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Old 12-26-2013, 05:13 AM   #8
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I have a problem with hot glue in the heat. It goes soft and the pilots fall out. Also the foam starts to bubble if left in the sun. Whoever invented our climate has a lot to answer for.
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Old 12-26-2013, 05:36 AM   #9
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Originally Posted by c.sitas View Post
Hey guys,It's -15 f in central Wisconsin, USA. Kinda new to foamies.No problems with the batteries,but I learned one thing today. I set one down on some hardpack today, ya,maybe alittle bit hard,he he. The plane was put together with hot glue and gg. The gg held alright but, every hot glue joint let go. Didn't break anything, it just came all apart. Hot glue is turned to glass at these temps,just like your fingers.As for my preference, I'll take the not so pretty 75 degree days. Merry Christmas everyone.

Yup
Here in SE Wisconsin, we've got near a foot of snow on our flying field. Lots of foamies flying on it, but my wheeled models are grounded til spring.

Will have to check out some skis for one of the smaller electrics sometime.
Except for the two little bitty models, all of my motors are powered by A123 cells. By actual test several years ago, those A123's didn't loose much power after being stored in the fridge overnight at 32F.

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Old 12-26-2013, 05:51 AM   #10
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Originally Posted by dgjessing View Post
I put the batteries in a cooler with a couple bottles of hot water. That keeps them warm while waiting to fly. Once they are in the plane and operating they make their own heat .

The only problem I've had in the cold is with my hands . To help with that I've recently fabricated a sterno fueled hand warming gizmo. Haven't had a chance to try it in real-world conditions yet. If it works well I'll post pictures!
Better is to fabricate some form of "transmitter glove" and use either hot water bottle(s) or chem heat packs. The fire based heating can get to be dangerous.

Just a clear plastic garbage bag and some packing tape can result in something that will keep the wind off your hands, without limiting your ability to operate the radio while you fly. That can make a HUGE difference in your comfort.
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Old 12-26-2013, 10:00 AM   #11
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Tx 'gloves' .... I have a pal who uses one, but I noted last winter he didn't - changed to similar gloves as I use - thin working gloves designed for 'feel'. They are not true winter warmers, but they reduce the chilling effects enough that a 10 minute flight is fine.



Nigel

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Old 12-26-2013, 11:51 AM   #12
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I fly a lot in the cold and I needed a solution to cold hands. I built a styrofoam LIPO powered heated transmitter box. This extends my flying season by 4 months at least. It's the best thing I've ever built for RC.

http://www.rcgroups.com/forums/showthread.php?t=1340114
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Old 01-04-2014, 02:13 PM   #13
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Here are some updated links to some of my favoriate winter flying aids.

COLD WEATHER FLYING AIDS – for the pilot that likes to fly all year round.

Winter Golf Gloves – Great for DLG pilots. Good throwing grip and good transmitter feel.
I use these all winter. If it is really cold I put a heat pack in my palm and my hands stay nice and warm.
http://www.dickssportinggoods.com/pr...ductId=4354397

Hand Warmer Packs – put them in your gloves, in your pockets, in your boots or in your transmitter glove. Great for cold days slope soaring. Also good for keeping your batteries warm. Put one in a small cooler with your motor batteries to keep them warm. I keep a bunch of these in my car winter emergency pack in case I am caught on the road. Good for 4 to 8 hours.
http://www.dickssportinggoods.com/pr...uctId=16809896



Neck Warmer – like a scarf but better
http://www.windwardboardshop.com/bul...black/dp/23297


Mongo Mitt – Transmitter Glove - Great for slope soaring
This is the one I have – love it! - has pockets for hand warmer packs.
http://rcmitt.com/

TurnegyTransmitter glove
http://www.hobbyking.com/hobbyking/s...ap_Ready_.html

Fleece Hood – for when a hat is not enough. I keep one in my car winter emergency kit

http://www.amazon.com/dp/B00128465Y/...SIN=B00128465Y

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Old 01-04-2014, 03:39 PM   #14
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I like using the Gorilla gloves from Home Depot nice and thin. Instead of the rubber grip to the palm I reverse them by wearing them on the opposite hand, and they do fit comfortable doing this. This puts the rubber on the back of the hand to kill any wind. Nice thing is they are black and do absorb some heat.

http://www.homedepot.com/p/Grease-Mo...-030/202709681
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Old 01-04-2014, 03:45 PM   #15
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Originally Posted by gramps2161 View Post
I like using the Gorilla gloves from Home Depot nice and thin. Instead of the rubber grip to the palm I reverse them by wearing them on the opposite hand, and they do fit comfortable doing this. This puts the rubber on the back of the hand to kill any wind. Nice thing is they are black and do absorb some heat.

http://www.homedepot.com/p/Grease-Mo...-030/202709681
Never thought of that ... on ships - we often reverse gloves, but that's because of getting dirty ..

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Old 01-04-2014, 04:12 PM   #16
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Just to be clear I don't turn them inside out just wear em on the opposite hands.
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Old 01-04-2014, 04:27 PM   #17
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Originally Posted by gramps2161 View Post
Just to be clear I don't turn them inside out just wear em on the opposite hands.
Yeh - understood that - that's also what I do when on the ships ... gives me a clean palm again.

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Old 01-04-2014, 05:00 PM   #18
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Originally Posted by solentlife View Post
Yeh - understood that - that's also what I do when on the ships ... gives me a clean palm again.

Nigel
Been there, and done that with the gloves.
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Old 01-04-2014, 08:28 PM   #19
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Originally Posted by gramps2161 View Post
Been there, and done that with the gloves.
I'm a Scrooge ... what's your excuse !! ??


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Old 01-04-2014, 09:07 PM   #20
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Originally Posted by solentlife View Post
I'm a Scrooge ... what's your excuse !! ??


Nigel
I refuse to be part of the throw away society, but that's better left to another thread.

If I go out flying on a pond for awhile I dress just like I would to go hunting, or ice fishing. Toe warmers in the boots and I will take hand warmers with me too. Thermos of hot coffee, food and I am happy to stay out flying for a couple of hours. I normally do this when it's sunny and in the 30's.
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Old 01-05-2014, 08:40 AM   #21
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Living next to the river as I do - every winter we see hundreds on the ice fishing ... I just cannot understand why anyone would sit on the ice all day fishing !

OK - the Russian way is with a bottle of Vodka on the coat pocket as well .. but !

The river where I am is full of fish and bus loads arrive and camp on the ice. It's become such a business ... $10 a kg for the fish they catch .. which are usually then dried for Beer Snacks. Most come from Lithuania - about 3 hours drive to border. The Latvian authorities have clamped down on this last couple of years by requiring licences etc.

The next photo shows how stupid these guys can be ... winter is drawing to close, snow is nearly gone, ice is thawing out ... and they STILL go out there .. (water is about 8m deep there) :



Friend of mine Pavel - after ice had thawed - went fishing in a dinghy .. fell out of the dinghy ... by time they had him back in the dinghy - thermal shock had killed him.

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