Stephen Jones Posted December 29, 2014 Share Posted December 29, 2014 Cheers Richard, Hope to cover them tomorrow now . Only 8 more hours left on call . Steve Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted December 30, 2014 Share Posted December 30, 2014 Only final setting up to do now . Steve Ho almost forgot to mention , my daughter asked if this was the B type . Edited By Stephen Jones on 30/12/2014 20:23:47 Quote Link to comment Share on other sites More sharing options...
Steve Jones 2 Posted December 30, 2014 Share Posted December 30, 2014 Good luck with the test flights Quote Link to comment Share on other sites More sharing options...
Richard Harris Posted December 30, 2014 Author Share Posted December 30, 2014 Steven, Looks the Bees Knees (sorry, I just had to) Will you be trying it with the wing fitted? Rich Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted December 30, 2014 Share Posted December 30, 2014 Thanks Guys , Yes, i will try it with the wing on 1st . I hope i have better luck with this one than i did with the Auto G . Cheers Steve. Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted December 31, 2014 Share Posted December 31, 2014 Hi , Just done some power test on my motor and i am only getting 115w max . My motor is rated at 200w and is a Dualsky XM2830CA-12 980kvm and my Prop is 10x5 Apc Electric and my ESc is a Dualsky Xc1812Ba . My Auw is 630g. I think i need to find a better set-up before i can test fly it . Steve . Quote Link to comment Share on other sites More sharing options...
Baz Lewis Posted December 31, 2014 Share Posted December 31, 2014 What is your Lipo C rating..... Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted December 31, 2014 Share Posted December 31, 2014 Hi Baz , I have tried two batteries one at 20c and one at 25c . Steve Edited By Stephen Jones on 31/12/2014 13:01:04 Quote Link to comment Share on other sites More sharing options...
Max Z Posted December 31, 2014 Share Posted December 31, 2014 Hi Steve, What battery are you using, 2s or 3s? I am running a 1020kV motor on a 3s and I am getting 14-15 A on the same prop as you, so around 150 W. Flies just fine on that. Max. Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted December 31, 2014 Share Posted December 31, 2014 Hi , My Battery is a Tipple (5c) 20c 1300mah 3s . and Rcmodelpart 25c 2200mah 3s . Cheers Steve . Quote Link to comment Share on other sites More sharing options...
Gary Manuel Posted December 31, 2014 Share Posted December 31, 2014 Have you calibrated your ESC to make sure you are getting full throttle? Quote Link to comment Share on other sites More sharing options...
Baz Lewis Posted December 31, 2014 Share Posted December 31, 2014 I have tried to fly my recent DB Auto on a 3s X 20c and only just managed to get airborn , so tried the 35c and it took off at 45°, so I know the c rating improves the output...just try it with any size 3s @ above 30c on the bench.....you will be surprised. Quote Link to comment Share on other sites More sharing options...
Steve Jones 2 Posted December 31, 2014 Share Posted December 31, 2014 Not an expert but the battery C rating for me is the 'punch' it has.. Think of a tank of water with an outlet pipe... The larger the pipe the more flow you are will get. The C rating for a given battery size therefore will change the performance. 20c compared with a 35c pack in a the same model will feel like only on half power when you are at full. I tend to only buy 35c plus packs.... Quote Link to comment Share on other sites More sharing options...
Richard Harris Posted December 31, 2014 Author Share Posted December 31, 2014 Steve, You may well be OK as is, only one way to find out. Not sure how many amps you are pulling but could you play around with props? 11 x 5.5" maybe? Rich Quote Link to comment Share on other sites More sharing options...
Phil Winks Posted December 31, 2014 Share Posted December 31, 2014 Posted by Steve Jones 2 on 31/12/2014 16:02:46: Not an expert but the battery C rating for me is the 'punch' it has.. Think of a tank of water with an outlet pipe... The larger the pipe the more flow you are will get. The C rating for a given battery size therefore will change the performance. 20c compared with a 35c pack in a the same model will feel like only on half power when you are at full. I tend to only buy 35c plus packs.... Thats not to far of the truth Steve but running a battery continuously above 10C will only give you a flight shorter than 6 minutes, hardly worth taking of. However a high C rated battery will give you 2 things at least, 1, less chance of over stretching the pack and 2 as you point out a better 'punch' for want of a better word. Truthfully if you can get a bigger Mah pack in the model then that would be the way to go. And with a C rating double what amps you expect to take out at MAX draw. ie: static test. so on a model drawing 10A from a 1000Mah 3s pack you'll need a min of a 20C pack for safety and from a 2000Mah pack 10C will be safe however the punch will be reduced somewhat possibly, but max power not, Confused.com anyone On a different note I made my Atom canopy this evening my 1st ever attempt at this shrinking a pop bottle stuff, it turned out to such a simple procedure even shrinking the bottle into a concave curve, something I thought I'd struggle to do Edited By Phil Winks on 31/12/2014 17:58:43 Quote Link to comment Share on other sites More sharing options...
BILL PETTIT Posted December 31, 2014 Share Posted December 31, 2014 After cutting fitting and sanding enough saw dust to create a white Christmas in the cellar I have my plug done for the old pop bottle squeeze! I never did this before so wish me luck.... Bill Quote Link to comment Share on other sites More sharing options...
Phil Winks Posted December 31, 2014 Share Posted December 31, 2014 Bill add scrap to the bottom of the plug till it just fits your chosen bottle and you'll have less shrinking to do, good luck fella Quote Link to comment Share on other sites More sharing options...
BILL PETTIT Posted December 31, 2014 Share Posted December 31, 2014 So after 3 bottels of water ( hold on I got to pee) ok better now. I take it you don't shrink it on the model only over the plug then cut it off the plug ??? Well that sounds better I guess. YOU MEAN I HAVE TO DRINK ANOTHER BOTTLE OF WATER !!!!! Dam hold on Ill be back. Quote Link to comment Share on other sites More sharing options...
BILL PETTIT Posted December 31, 2014 Share Posted December 31, 2014 I added 1/4" all the way around the plug and will try again but I have to run to the market for a larger bottle of ginger ale so I can have a few hi-balls and watch the ball drop. So I'm done for the night. HAPPY NEW YEAR ALL!!! Bill Quote Link to comment Share on other sites More sharing options...
Richard Harris Posted December 31, 2014 Author Share Posted December 31, 2014 Bill, Make the plug tight into the bottle, the less shrinkage the easier it is. I find beer and cider bottles to be the best ..hick! 2 litre bottles are harder to shrink because the Atom plug is relatively small considering. If you can match the tightest part of the curve at the front of the plug with the neck of the bottle which is already has a radius this aids things also. Rich Edited By Richard Harris on 31/12/2014 19:15:18 Quote Link to comment Share on other sites More sharing options...
Steve Jones 2 Posted December 31, 2014 Share Posted December 31, 2014 Yes Bill, only way I have had success is to find the smallest bottle the plug will fit or build up the plug with more wood to the bottle you will use, the less the shrink the better the result! Happy new year to you too Steve Quote Link to comment Share on other sites More sharing options...
BILL PETTIT Posted December 31, 2014 Share Posted December 31, 2014 Oh so Not cut out a large sheet from the bottle sides only open one end and put the pluge inside and shrink it around it right? Bill Quote Link to comment Share on other sites More sharing options...
Steve Jones 2 Posted December 31, 2014 Share Posted December 31, 2014 Exactly, Cut the bottom off , push balsa plug up inside, as a good fit then try and shrink bottle to it evenly Steve Quote Link to comment Share on other sites More sharing options...
Phil Winks Posted December 31, 2014 Share Posted December 31, 2014 I added about 4 layers of 3/8" to the bottom of the plug to make it a close fit in the bottle, using a 2000w hot air gun set to approx 3/4 to 7/8 max power it took quite a while to shrink down working slowly all the way round the bottle shrinking it evenly on all sides and at no point did I feel the plug was about to burn or even scorch, once shrunk I used a fresh blade in my no4 scalpel to cut allong the lines of the original plug which was/is 3mm big on all edges There are some video's of the process kicking around somewhere Edited By Phil Winks on 31/12/2014 20:00:56 Quote Link to comment Share on other sites More sharing options...
Terry Whiting 1 Posted December 31, 2014 Share Posted December 31, 2014 Rich, After seeing pictures of Little Nell and Rex and the two blade head inspired me to have a go at a spare C30 head I had. Well this is what I finished with, bit of a hybrid by using a Blue Wonder bearing. Only time will tell if it's man enough for the job.. What gap do you recommend between blade root and flex plate washer, is it still 14mm?......Terry...... .. Quote Link to comment Share on other sites More sharing options...
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