Chris Bott - Moderator Posted December 12, 2009 Share Posted December 12, 2009 My first experience of flying was in a Vickers Viscount as a cub scout. We were taken on an hours charter from Birmingham Airport, out around Anglesey and back. I recon I was about 8 years old. That hour of my life has a lot to answer for. I bet my haircut that day would be quite funny today too.. Chris Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted December 12, 2009 Author Share Posted December 12, 2009 Here is the wiring for the Chipmunk, thanks Chris for the drawing Sorry about the missing picture but despite it being a JPG it will not upload visbly Cheers DannyEdited By Danny Fenton on 12/12/2009 19:50:46 Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted December 12, 2009 Share Posted December 12, 2009 Nowt appeared Danny - is it all done by blutooth Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted December 12, 2009 Author Share Posted December 12, 2009 You will just have to mentally picture the BEC and MUI configuration off dual 5s LiPo's or 6s A123 - sorry Quote Link to comment Share on other sites More sharing options...
Ross Clarkson Posted December 12, 2009 Share Posted December 12, 2009 Danny, This is looking awesome, i am very jealous and can not wait to see it completed. Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted December 12, 2009 Author Share Posted December 12, 2009 Hi Ross, thanks for the kind comments, much appreciated. Hopefully not much more to do now. Just debating making the landing light work with the flaps......... What do you reckon? Cheers Danny Quote Link to comment Share on other sites More sharing options...
Chris Bott - Moderator Posted December 12, 2009 Share Posted December 12, 2009 Danny is this the pic? (Fingers crossed now, 'cos it may not appear for me either Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted December 12, 2009 Author Share Posted December 12, 2009 Thanks Chris, yes thats the boy. Go on tell me what did I do wrong? Cheers Danny Quote Link to comment Share on other sites More sharing options...
Chris Bott - Moderator Posted December 12, 2009 Share Posted December 12, 2009 You weren't, I was lucky and did it in a very convoluted way. I reconed visio must save the drawing as a .jpg that is no good here. So I saved it as a .bmp Then I found out a .bmp is no good for this site, so used PSP8 to convert it to a .jpg The PSP8 .jpg is obviously OK... Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted December 12, 2009 Author Share Posted December 12, 2009 I will try and remember that for next time........... Thx Chris owe you a beer. For anybody remotely interested the key for the above drawing is: Batt = cells (obvious one really) ESC = Controller (again fairly obvious, I dare say you wouldn't be following this post if you hadn't figured that out UBEC = Battery eliminator, replces the Rx battery pack by reducing and smooting main battery supply to a high current, 6v supply (but you knew that too didn't you lol) MUI = This is the Jeti sensor that detects the current, voltage and therefor by using time can calculate capacity used etc. Cheers Danny Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted December 15, 2009 Author Share Posted December 15, 2009 well getting closer. I have booked a days holiday on friday to hopefully get over and test fly Chippy so better get a move on. The front end is all finished now, and much more rigid than it was. Not the tidiest joints in the world but they will do fine. I will check everything is still in place after the maiden (assuming it survives it ) Got to sort all the channels out next and add some small moulded covers for pushrod exits, Wheel leg covers and cut some identification decals. If I say it quick it isn't much...... Quote Link to comment Share on other sites More sharing options...
Ross Clarkson Posted December 15, 2009 Share Posted December 15, 2009 Danny, i personally would not link the landing light to the flaps in case sometimes you do not use flaps to land. Is it linked in the real aircraft? Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted December 15, 2009 Author Share Posted December 15, 2009 Hi Ross, not sure on the full size i wouls suspect a seperate switch. I am using a 8 channel Rx so am not sure if i will have a spare channel to operate the light in any other way. I always tend to land with flap on windy days I only select half the amount available, just habit I guess. If I have a channel left over I will make it seperate - if I do actually make it operate at all......... Cheers Danny Quote Link to comment Share on other sites More sharing options...
Ross Clarkson Posted December 15, 2009 Share Posted December 15, 2009 Makes sense Danny if you have a channel left. Definitely make it work though, it would look the nuts. Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted December 16, 2009 Author Share Posted December 16, 2009 Am I the only one that has days when they feel they should just have stayed in bed? Should have been an easy little bit of work on the wings. Just needed to add the undercarriage leg fairings.......... First of all the fairings are supposed to slide over the leg with the axles in place......they will not, they are fat fairings (too fat in fact) but they will not pass. You cannot remove the leg because the fairing would stop you putting it back on again So you have to remove the axle which is held in place by a small grub screw. You can then position the leg fairing and remove the wing film to give a good surface to bond the leg to. (The first prang and this is all going to look very second hand.) Okay second reason for not getting up, this time my fault, I centralised the leg in the fairing and cut the film accordingly. WRONG the fairing is close to the front. I have some grey film scraps so will patch it up Okay reason No three for not getting up today. Mounted the fairings, refitted the axles and tried to slide a wheel on That wheel isn't even halfway onto the axle and it hits the fairing, so the fairing either needs shortening, the axle lengthening, or the wheel reducing....... Wheres my duvet....... Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted December 16, 2009 Author Share Posted December 16, 2009 Oh and while I am here, sorry about this Ross but I could not find an easy route to feed power to the leg fairing for the light to function. I have all the bits to do it, but I am not going to remove film to channel the wires through....... Sorry Ross Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted December 16, 2009 Author Share Posted December 16, 2009 I am afrid you will have to wait for a full shot outdoors until the test flight as its too flaming big to move around. This is only 1/5 I am starting to imagine what a 1/4 scale would be like Anyway all the controls are set central by adjusting pushrods etc, no subtrims used. And then threadlocked. The decals are all added and apart from some 2 core jst leads to make up from the UBEC and MUI (which arrived today (thanks Chris) and a final check that the c of g hasn't wandered off the wing we are good to go Just the flaming weather to contend with now....... Contact!!!! Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted December 16, 2009 Share Posted December 16, 2009 Looks great ( as usual for you ) - I think we all echo the sentiments for good weather....its not even slope weather at present Quote Link to comment Share on other sites More sharing options...
Ross Clarkson Posted December 16, 2009 Share Posted December 16, 2009 Looking awesome Danny. How did you sort the leg fairing out? I was going to suggest cutting the fairing around the shape of the wheel (on the wheel side only). Also, Pilot looks great and i personally would get that prop painted black with yellow tips! That is one big bird Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted December 16, 2009 Author Share Posted December 16, 2009 Thx Timbo, yes it is quite attractive though I still prefer silver Chippys. I hope this flys well, I have deliberately gone for the big pack to give me the duration needed for a little comp flying. About time us electric flyers mixed it with the IC'ers Have you forgiven me Ross for the lack of functioning landing light ? I just shortened the fairing all around. i did think about notching it but thought that would look more obvious than it just being shorter. I will hold off painting the prop until I confirm the pitch and diameter is right By the way this is the Chippy I have based mine on Cheers Danny Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted December 16, 2009 Author Share Posted December 16, 2009 Slightly alarming problem spotted today. With no cells fitted, the Rx pack armed the esc and if the throttle was advanced actually drove the motor!!! this is kind of worrying any thoughts????? Cheers Danny Quote Link to comment Share on other sites More sharing options...
Bruce Richards Posted December 16, 2009 Share Posted December 16, 2009 Have you disconnected the red wire between the ESC and the Rx? Sounds very odd and may be more complicated than my suggestion makes out.Edited By Bruce Richards - Moderator on 16/12/2009 18:57:26 Quote Link to comment Share on other sites More sharing options...
nasa_steve Posted December 16, 2009 Share Posted December 16, 2009 hi danny rx pack is not enough to drive a motor of that size it may arm but i'm pretty sure even a 6v pack would struggle to run it.......that said i think the set-up you have may be a little optimistic to fly that model on what surmounts to 2hp i reserve judgement till you've flown it but i would say be careful and treat it with kid gloves at first. i may and hope for your sake i'm wrong but it all seems a little too under what i would call a safe figure i would be looking personally for 2kw+ steve Edited By nasa_steve on 16/12/2009 19:14:35 Quote Link to comment Share on other sites More sharing options...
Danny Fenton Posted December 16, 2009 Author Share Posted December 16, 2009 Hi bruce, this is a non BEC esc so I am pretty sure I don't need to disconnect the red, I certainly haven't whenever I have used these ESC's before but I will double check to be on the safe side. Hi Steve, I can assure you it spins with only the Rx battery (6v) plugged in. The A123/LiPo packs are in the other room LOL. I did photograph it spinning, but the light is insufficient without the flash, and of course the flash freezes the prop lol. As for the amount of power required, Andy Glover has just recently won the Deeside Traplett flying only event with one of these on not the strongest 120 four strokes, developing 2hp at best, I have 1500 watts which is 2hp. It weighs 12lbs (now that those dodgey pilots are removed) so well in excess of 100w / lb it should be fine. It is after all a 1946 145Hp trainer, and I intend to fly it as such. Though as they say the proof of the pudding is in the eating of course I could be wrong, and that won't be the first or last time I am sure Cheers Danny Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted December 16, 2009 Share Posted December 16, 2009 Hmmmm - I dont think it should do that Disconnecting the red would surely not affect this scenario anyway - the red wire merely powers the receiver not the ESC output to motor.So you have power connected to the ESC input leads at all? have you tried a MM across the inpout leads when the rcvr battery is powering the rx.... is there a voltage present? Quote Link to comment Share on other sites More sharing options...
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