winchweight Posted April 24, 2009 Share Posted April 24, 2009 Looks and sounds great, but I can't get over how quickly it stops. Does it have brakes fitted as the stopping distance is very short given the landing speed? Also what power train does it use? Quote Link to comment Share on other sites More sharing options...
David Ashby - Moderator Posted April 24, 2009 Share Posted April 24, 2009 Just nicked the details from Tony's site - span almost 19 feet (5.5m) and weighing in at over 80lbs (40kg). Motor power is provided courtesy of four 4-Max PPPO-6367-230 out runner motors, each capable of developing 3kW of power and total motive power of 12kW. Battery power is provide by Nimh cells (96 in total) be could be increased to 144..(36 cells per motor) if required. Edited By David Ashby - RCME moderator on 24/04/2009 08:39:38 Quote Link to comment Share on other sites More sharing options...
winchweight Posted April 24, 2009 Author Share Posted April 24, 2009 Just found that link. Why Nimh batteries and not one of the more modern types? And the brakes...... any idea? Quote Link to comment Share on other sites More sharing options...
David Ashby - Moderator Posted April 24, 2009 Share Posted April 24, 2009 Tony said Li-Po's would be too expensive, not sure about brakes, I'll ask him to pop by...... Quote Link to comment Share on other sites More sharing options...
Phil Winks Posted April 24, 2009 Share Posted April 24, 2009 That is something else a proper big boys toy wonder how long it'll be the worlds largest Quote Link to comment Share on other sites More sharing options...
Slopetrashuk Posted April 24, 2009 Share Posted April 24, 2009 Largest electric powered RC model in the world eh? At only 5m span? Don't think so. Heaviest maybe - have no other information to suggest otherwise but there are loads of 7 and 8m span 1/2 scale electric powered gliders out there. It is the preferred method of assisted height gain for many large scale model sailplanes. Andy Edited By Slopetrashuk on 24/04/2009 12:40:37 Quote Link to comment Share on other sites More sharing options...
Slopetrashuk Posted April 24, 2009 Share Posted April 24, 2009 Ah! Tony's website lists it as 'ONE' of the largest electric models in the world. I concur. Perhaps you'd better dumb your heading down a bit Dave. Andy Quote Link to comment Share on other sites More sharing options...
Gemma Jane Posted April 24, 2009 Share Posted April 24, 2009 Are we getting a free plan LOL. Very impressive model in it's own right, but electric, amazing. Quote Link to comment Share on other sites More sharing options...
BalsaBasher Posted April 24, 2009 Share Posted April 24, 2009 A very impressive model. The camera lens could have done with a wipe Quote Link to comment Share on other sites More sharing options...
Dave Towell Posted April 24, 2009 Share Posted April 24, 2009 yes please !!!! oh sorry thought it was up for grabs as this months prize draw!! LOL Really impresive can't wait to see it at one of this years shows. Well done Tony Quote Link to comment Share on other sites More sharing options...
Tony Nijhuis Posted April 24, 2009 Share Posted April 24, 2009 A title like the largest anything will alway raise a few eyebrows....Yes Andy is right there a plenty of big sailplanes powered by electric but all I believe come under the 20kg limit (25kg in Europe). The B50 is currently to Heaviest flying electric model at 42kg (84 lbs) but I do know of two B36 being built (one the States and one in the UK) that will beat it....so it will be short lived...but hey..its a lovely aircraft to fly and I do like pushing aeromodelling 'bounderies' To answer Shaun's question, I needed the Nimh to ballast the model. If I used Lipo (which have to be fitted into the nacelles) I would requied a couple of pound of lead in the nose. Also all the ESC and chargers (which I have had for a few years now) are for Nimh....the cost of converting to Lipo would include the ESC and chargers.......looking at £1200.......maybe next year I go over to 10s lipo. No brakes or flap (to save weight) were fitted but I think you'll agree she's happy without them... Tony Quote Link to comment Share on other sites More sharing options...
winchweight Posted April 24, 2009 Author Share Posted April 24, 2009 She is inded Tony. The main reason I asked is she seems to land quite fast, but stops in an incredibly short distance. There for I wondered if it had brakes fitted or (in my head) a variable pitch prop or reversing props. Quote Link to comment Share on other sites More sharing options...
nasa_steve Posted April 25, 2009 Share Posted April 25, 2009 very very impressive Tony i do love the short field capability which i am very surprised by i don't think the original stopped that quick!! how do you stop it that quick?? i look forwards to crewing on this at some point this year. incidentally just won an AXI 5330-18 with a 90amp esc any ideas as to what to put it in?? maybe even a fighter escort for the B50 eh?? regards steve Quote Link to comment Share on other sites More sharing options...
ken anderson. Posted April 25, 2009 Share Posted April 25, 2009 hello tony--bring it up north asap---you'll get a warm wellcome............ ken anderson........... Quote Link to comment Share on other sites More sharing options...
Former Member Posted April 25, 2009 Share Posted April 25, 2009 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Malcolm Street Posted May 5, 2009 Share Posted May 5, 2009 Tony, how do you go about charging such a monster? Quote Link to comment Share on other sites More sharing options...
ken anderson. Posted May 5, 2009 Share Posted May 5, 2009 tony as above-how long and how do you charge all the bat's? ken anderson......... Quote Link to comment Share on other sites More sharing options...
Tony Nijhuis Posted May 8, 2009 Share Posted May 8, 2009 Have had a few more flight with the monster and she real is a cracker...hopfully she be signed off quite soon. Not sure if I'll get to finish her this year.....just too many other RCM&E projects to fit in! At the moment, she's flying on 24 x 3500mah nimh cells per motor. To charge the cells I use 4 car batteries, and 4 chargers each capable of charging 24cell....that being the case i can normally re-charge the model in 45mins. I generaly only get 3 to 4 charges before the car batteries give out but that a good weekends flying. I was hoping to go lipo but this will cost £1000 plus to change. I plan is to try the Overlander new 5000mah nimh.....should give me a 10-12 min flight Tony Quote Link to comment Share on other sites More sharing options...
Jonathan Lewzey Posted October 26, 2009 Share Posted October 26, 2009 Very impressive surface finish on a brilliant subject for a large model . Hope to see it on next years show circuit? Quote Link to comment Share on other sites More sharing options...
Trex700e Posted January 10, 2010 Share Posted January 10, 2010 Tony, That is one nice model and I cannot wait to see it at a few shows if you choose to public display it.. Do you have any plans for another large build? Do you have anymore information on the B-36 being built in the UK like photos or anything? Thanks Will Quote Link to comment Share on other sites More sharing options...
Chris Bott - Moderator Posted April 21, 2010 Share Posted April 21, 2010 Hi Tony, Very impressive aeroplane - Awesome. Not sure where you buy your lipos though, but I'm pretty sure these would save you money and weight over the 5000NiMh's This 4S 5000 and a similar 3S 5000 would give you similar volts. They perform very well indeed and can be charged faster than you can supply current (probably), well up to 5S anyway. I reckon about £360 for the whole set. With a saving of about 3Kg too. I'd normally advocate A123 batteries. Especially for the safety aspect over LiPo's. But if you pay top dollar, 8S2P (24V on load, 4600mAh) could be £800. I have recently bought them at half that price but have to take opportunities to buy as they come up. A123's would also be lighter than NiMh's too, but not as light as LiPo's Keep up the fantastic work though, totally inspiring. Cheers Chris Quote Link to comment Share on other sites More sharing options...
David Ashby - Moderator Posted April 21, 2010 Share Posted April 21, 2010 Will, I've just spoken to Tony, no particular plans/large projects at the moment. There are two B-36 being built, one here in the UK and one in the USA, no pics though. Quote Link to comment Share on other sites More sharing options...
Former Member Posted April 21, 2010 Share Posted April 21, 2010 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Chris Bott - Moderator Posted April 21, 2010 Share Posted April 21, 2010 Ah OK, thanks Eric, wonder how I missed that? Sorry. Quote Link to comment Share on other sites More sharing options...
Josip Vrandecic -Mes Posted April 21, 2010 Share Posted April 21, 2010 Mr. Tony Nijhaus is the King of all modelers-builders in the world. Quote Link to comment Share on other sites More sharing options...
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