John Laverick Posted December 8, 2012 Share Posted December 8, 2012 Well, here she is finished at last. This is an old Mick Reeves 80" Hurricane which I've converted to electric. I bought it as my first ever kit in 1992, way beyond my skill level so she was built and then stuck in the attic. Over the past 10 years I've built about 30 planes from plans so I decided my skill level had progressed enough for me to do a conversion on it. The colour scheme is based on a Sea Hurricane with invasion stripes, totally made up and proberly never exsisted, but I like it. Set up is 11.2 pounds fully loaded, 63/54 sized motor, 20x10 wooden prop, 70amp HV ESC, running on 10s, @ 1270 watts, 37 amps with Top Flite leccy retracts and flaps Hope you like it Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted December 8, 2012 Share Posted December 8, 2012 nice i have a soft spot for the hurricane and will be building another one day. Quote Link to comment Share on other sites More sharing options...
Greybeard Posted December 8, 2012 Share Posted December 8, 2012 Look good John, don't forget to post a flight report in due course. Quote Link to comment Share on other sites More sharing options...
John Hickson Posted December 8, 2012 Share Posted December 8, 2012 Beautiful John. What motor did you go with? Quote Link to comment Share on other sites More sharing options...
John Laverick Posted December 8, 2012 Author Share Posted December 8, 2012 This one John del: XYH63-54 Input Voltage : max. 37V (10S Li-po) Kv : 250 rpm/V No. of turn :14 Delta Max. efficiency current : 50A Current capacity : 65A/60s Internal Resistance : 59 mohm No Load current @ 7V: 2.16A Dimensions : 82mm X 53mm Shaft diameter : 10mm / 0.39in Weight with cables : 4800g / Number of poles/magnets : 14 Recommended model weight : 5000~10000g / 176~352oz Power equivalent : .90-150 Glow Scary the amount of power it has!!! Can't test it on your own, you need someone to hold the model. Love the advancement in electric power we have, not gone this big before, 4s has been my maximum so far, but a motor this size going at full belt on 10s!!! Would hate to think I got in the way of it! I know you can hurt yourself with a motor running on a 4s but this is a different league, wow!!! Quote Link to comment Share on other sites More sharing options...
Paul Travis Posted December 8, 2012 Share Posted December 8, 2012 Very nice and 10 s ! Wow Quote Link to comment Share on other sites More sharing options...
John Hickson Posted December 9, 2012 Share Posted December 9, 2012 Looking forward to a flight vid! good luck with the maiden Quote Link to comment Share on other sites More sharing options...
brfc7 Posted December 9, 2012 Share Posted December 9, 2012 1270 watts divided by 11.2lb = 113 watts per lb or 11.2 lb = say 180 oz, 1270 watts divided by 180 oz = 7.05 watts per oz (depending which way you do it) Will this be enough for some nice scale flying Baz Edited By brfc7 on 09/12/2012 13:51:22 Edited By brfc7 on 09/12/2012 13:53:55 Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted December 9, 2012 Share Posted December 9, 2012 looks fantastic John, whats the capacity of the pack, you have done a great job on keeping the weight down, is it using the foam cored wing? Cheers Danny Quote Link to comment Share on other sites More sharing options...
Simon B Posted December 9, 2012 Share Posted December 9, 2012 Baz, there's a common mistake amongst radio controlled flyers that a surfeit of power is always necessary. Scale flying should only require 100w/lb, as you're looking for slow graceful manouvres, not unlimited vertical performance and the ability to prop hang. 113w/lb is absolutely fine and should still give room for getting out of sticky spots. Quote Link to comment Share on other sites More sharing options...
John Laverick Posted December 9, 2012 Author Share Posted December 9, 2012 Two 25c 3000's Danny, yea it is the old one with the foam wings, the new Mick Reeves Hurricane is larger and has built up wings. Unfortunately I have to stick some lead in it's nose, or mess about with larger batteries to get it to balance Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted December 9, 2012 Share Posted December 9, 2012 Hi John yes Micks newer Hurricane is 1/4 scale, but is very nice. if I were you i would go for bigger cells, your 3000 will give about the same duration as my 12S A123 2300mAh set up in my YT 72" Hurricane, i can run my cells to zero (2300) you- cant go below 25% of the lipos safely, (2250) thats only good for 6 minutes spirited flying, if you have to add weight you may as well make it useful weight as for too much power for scale flying i am afraid with a warbird i disagree, for normal flight you dont need much, i have video of my Hurricane flying with eagle tree data superimposed, the clever M r Bott did it for me, wll find the link if you are interested? but for a big loop you need 1:1 thrust because our models do not carry the momentum of the fullsize, so we have to cheat a bit and use raw thrust. this is what Mick does with his 1/4 scale leccy spit to great effect. Cheers Danny Quote Link to comment Share on other sites More sharing options...
Chris Bott - Moderator Posted December 9, 2012 Share Posted December 9, 2012 You mean this video Danny? Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted December 9, 2012 Share Posted December 9, 2012 Well done, Thanks Chris, was that really May 2008. Back then this was a big electric model LOL Cheers Danny Quote Link to comment Share on other sites More sharing options...
Stephen Grigg Posted December 9, 2012 Share Posted December 9, 2012 Brilliant story of determination to finish the project at the right time.Beautiful model. Quote Link to comment Share on other sites More sharing options...
John Laverick Posted December 10, 2012 Author Share Posted December 10, 2012 Great video Danny/Chris, You're right about using larger batteries for added weight of course, I'll not be flying her until the spring so I've time to spirit some pennies away to buy even more batteries. Interesting watching the data read out showing that she was quite happy for normal flying on around 600watts. Gives me great confindence. thanks John Quote Link to comment Share on other sites More sharing options...
Martin Harris - Moderator Posted December 10, 2012 Share Posted December 10, 2012 I half built the MR Hurricane before drifting out of model flying in the late 70s (can't believe how long ago that was!) I've often regretted the knee-jerk reaction of disposing of the kit when my airborne radio gear was accidentally sent to the local tip - in those days a receiver, Nicads and servos were transferred to whatever model you were flying as they cost an arm and a leg... As I recall, the model was designed for a 2 stroke 60 - in those days a 60 was a BIG engine and electric motors were (virtually) used only for servos...an electric starter was in the realms of the fabulously wealthy! I bought a second hand "as new" OPS 60 for mine and remember marvelling at the sheer size and incipient power of the beast and regarded starting it with some trepidation. As it was to run with a MR supplied "custom" in cowl silencer I did have one or two doubts whether it might reach anywhere close to its rated power on a prop suitable for the Hurricane as they were more usually twinned with a power pipe to run at twenty something thousand RPM, so it's good to know that it should have flown with less than 1/3 of what the glossy adverts claimed it would output (2.4 bhp as I seem to recall!) Anyway, a few years back I did finally dig it out of storage and fly the engine in my old Pegasus 63" Hurricane (quite a heavily built beasty) when its SC91 FS was out of commission, using the old MR silencer as a collector with an additional expansion chamber where, restricted by a 14 x 6 prop and 82 dB, it performed reasonably well, if not ballistically. At least the engine took to the skies in a Hurricane eventually! Anyway, despite my (illogical) prejudice against electric powered warbirds, its nice to know there are still some of the MR Hurricanes about and I hope you have hours of fun with yours. If it's a typical model Hurricane, at least you won't have to restart the engine every time it noses over while taxying! Edited By Martin Harris on 10/12/2012 13:47:29 Quote Link to comment Share on other sites More sharing options...
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