Tomtom39 Posted July 1, 2012 Share Posted July 1, 2012 Hello Peter Church roof. more like the whole church!!! It is however well built so quite happy with it . Just need decent weather now to get some flying in. Quote Link to comment Share on other sites More sharing options...
Broken Prop Posted July 1, 2012 Share Posted July 1, 2012 Just had a rummage in the spares box and came up with a 3700 mAh NIMH battery, which weighs in at 254grams. Looks like the church roof is safe for a little while yet.............. Edited By Peter Ward on 01/07/2012 11:02:57 Quote Link to comment Share on other sites More sharing options...
Alan Cantwell Posted July 1, 2012 Share Posted July 1, 2012 I cant, and never could understand the complaints about having to add ballast to the front of a model, specially a warbird, i see the mention of its bad enough having to add enough having to add 8oz of lead to a scale warbird, believe me, if its a scale warbird, getting away with 8oz is luxury!! I am going to buy an acrowot at cosford, it will be having my laser 80, if it has to have weight up front, then it will get it, its going to be my heavy weather winter hack, i have even been known to ballast models up to make them fly solid, this is an aerobatic machine, not some flimsy 3D model, that needs to fly like a paper bag, the accy wot has a nice thick wing, ballast away, and enjoy it OH, and sticking ballast weights to flimsy cowls may not be a good idea, they are held in place by tidgy screws, into wooden blocks, the vibration from the engine will shake those weights around, and this will get to the mounting points, dya not think?? Quote Link to comment Share on other sites More sharing options...
Glenn Philbrick Posted July 1, 2012 Share Posted July 1, 2012 When putting larger engines on the front of this model be aware that there is only a couple of mm of cowl movement available, engines with longer crankshafts will not fit without considerable modification. Quote Link to comment Share on other sites More sharing options...
Tomtom39 Posted July 1, 2012 Share Posted July 1, 2012 Hello Alan Take your point re weights on cowl - quite agree. I should have elaborated. . I normally beef up the the fixings on my cowl (I wouldn't describe the Acro wots cowl as flimsy !) in this case captives X 4 into fuselage using 3mm bolts and back of cowls reinforced with Carbon cloth. Max amount of weight epoxied into fuselage 60g. Rest is lead cast into 1.5cm steel tube and screwed into firewall - works pretty well. Laser 80 sounds pretty good Quote Link to comment Share on other sites More sharing options...
IanR Posted July 1, 2012 Share Posted July 1, 2012 Tomtom Don't forget about the piccies of your electric conversion. Powertrain details, also, please. Thanks, Ian. Quote Link to comment Share on other sites More sharing options...
John Allen Posted July 1, 2012 Share Posted July 1, 2012 Glad I've been reading this thread, as my original plan to put my Irvine .53 up front would have been a disaster. At the guts of 220g lighter than the ASP .91FS, I'd have needed practically the weight of the ASP up front in lead to get it to balance. I can't believe that its been designed to need this much ballast up front, especially as the 2 stroke requirements are for a .40 to .55. Quote Link to comment Share on other sites More sharing options...
Former Member Posted July 1, 2012 Share Posted July 1, 2012 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Alan Cantwell Posted July 1, 2012 Share Posted July 1, 2012 is the tail, and for that matter, the taliplane, elevator, fin and rudder of sheet, or built up construction? Quote Link to comment Share on other sites More sharing options...
Former Member Posted July 1, 2012 Share Posted July 1, 2012 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Paul Marsh Posted July 1, 2012 Share Posted July 1, 2012 Mine flew spot on. Even though it was very windy, didn't need any trim adjustments. Also have a 4300mah 6v battery under the fuel tank - so no lead needed. Quote Link to comment Share on other sites More sharing options...
Alan Cantwell Posted July 1, 2012 Share Posted July 1, 2012 this on the artf version? not like the chinese, i would have expected them to have done a built up set of tail feathers Quote Link to comment Share on other sites More sharing options...
Paul Marsh Posted July 1, 2012 Share Posted July 1, 2012 It is solid sheet. Also when taking the film off, there is a spruce spar let into the balsa (as per Chris Foss's recommendation in doing so on the kit). Photo here from a very windy Wrexham MAC open-day. Edited By Paul Marsh on 01/07/2012 20:44:42 Quote Link to comment Share on other sites More sharing options...
Alan Cantwell Posted July 1, 2012 Share Posted July 1, 2012 anyone assembling this model, can you weigh all the bits that glue into the back end? sort of comparison poll Quote Link to comment Share on other sites More sharing options...
Reno Racer Posted July 1, 2012 Share Posted July 1, 2012 I have a spare Saito FA65 waiting for a new home, but i'm really undecided as to whether it will have enough uuumph for the acrowot. Its comparatively heavy, so should help with the nose weight. what do you all reckon,Saito FA65??? Quote Link to comment Share on other sites More sharing options...
DG3 Posted July 1, 2012 Share Posted July 1, 2012 Has anybody actually tried fitting an ASP 91? Was there much hassle fitting it? Also,when fitting lead - is it ok to to mount it to bolts on the engine mount in front of the engine? Quote Link to comment Share on other sites More sharing options...
John Allen Posted July 1, 2012 Share Posted July 1, 2012 If the ASP 70 was a squeeze then I suspect the 91 will be even more so, as it 2mm wider. I noticed the mount is identical to the latest Wot4 ARTF mount, and I had to drill the holes to move the mount closer together for my Irvine .53, so the same may be necessary to open slightly for the ASP 91. Quote Link to comment Share on other sites More sharing options...
Robert Welford Posted July 2, 2012 Share Posted July 2, 2012 I've offered up my Laser 80 to the fuselage and mount for a horizontal installation. It's all a bit tight and getting the engine/mount distance down to 120mm with the carb. and muffler missing the firewall is impossible. Making cut-outs in the edge of the firewall may be the way ahead. If anyone else has installed a Laser 80 then I would be interested to know how you've done it ... Quote Link to comment Share on other sites More sharing options...
Delta Whiskey Posted July 2, 2012 Share Posted July 2, 2012 My original Acro Wot had a Irvine 53 and flew very well with lots of power - so this new one must be a lot heavier ! Edited By Delta Whiskey on 02/07/2012 20:57:53 Quote Link to comment Share on other sites More sharing options...
John Allen Posted July 2, 2012 Share Posted July 2, 2012 I think its more a case of balance that overall weight. It looks like either the tail end is heavier than the kit version, or the front end has been made lighter. Hopefully with my 3300mah battery under the tank I won't have to add too much lead. Quote Link to comment Share on other sites More sharing options...
Jon Laughton Posted July 3, 2012 Share Posted July 3, 2012 just a thought - has the fuselage been lengthened compared to the build kit? Could the fact that the rear fuse is 'less cut down' be adding weight as well? Anyone compared the dimensions to the build kit? (I just sold my built up Acrowot airframe - flew it for four years with an OS 55AX - it balanced & flew fine as built with that engine although I did reinforce the fuels tank area and inner firewall with glasscloth/epoxy....) Jon Quote Link to comment Share on other sites More sharing options...
John Allen Posted July 3, 2012 Share Posted July 3, 2012 Might just do that on the ARTF, especially with an ASP .91FS up front. Quote Link to comment Share on other sites More sharing options...
Mike F Posted July 3, 2012 Share Posted July 3, 2012 Have just completed mine and fitted OS60fx... but much better than the 46/55 recomended. but I still need 120gm nose weight to broing c of g.. Good luck everyone see you at the Chris foss fly in at Old Warden Sept. .I think there are plenty avaulable.. Geoff Stubbs Oundle I know has one. . The last of the old style model shops Quote Link to comment Share on other sites More sharing options...
John Allen Posted July 3, 2012 Share Posted July 3, 2012 This looks hopeful for only 50g with my ASP .91FS up front. What battery & placement did you use Mike? Quote Link to comment Share on other sites More sharing options...
DG3 Posted July 3, 2012 Share Posted July 3, 2012 Posted by Delta Whiskey on 02/07/2012 20:45:58: My original Acro Wot had a Irvine 53 and flew very well with lots of power - so this new one must be a lot heavier ! Edited By Delta Whiskey on 02/07/2012 20:57:53 The ARTF fuselage looks like it has been widened compared to your kit pic. Quote Link to comment Share on other sites More sharing options...
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