Neil67 Posted July 25, 2020 Share Posted July 25, 2020 I have a 50" Tiger Moth which I was given a while back but with no instructions. Assumed wrongly, it appears, that standard servos would fit wings for ailerons, but they don't. Help please on what servos I should fit to match covers which appear to suggest servos fitted on side. Thanks Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted July 25, 2020 Share Posted July 25, 2020 Hi Neil, I'm far from an expert, but it appears indeed that your servos should be mounted on their side against the ply cover plate. Standard servos are way OTT these days for ailerons for that size of model.. A 'mini' or even a 'micro' should be sufficient. Preferably a metal geared 13gram with bearing should be nice. But, you'll get 'expert' advice soon, I guess... Cheers & keep safe Chris Quote Link to comment Share on other sites More sharing options...
Robert Parker Posted July 25, 2020 Share Posted July 25, 2020 Hi Neil, I agree with Chris, and I have done this method on many of my models including my own 66" Tiger Moth. Here is a photo of one such installation using a ply plate and hardwood strip A slight variation clamping the servo in place. these are for the flaps on a Beaufighter The servos shown are still a little OTT and I now use metal geared Turnigy or Corona 13g servos from hobbyking, good servos for little money and so far I have not had one let me down other than one which was faulty on opening the box. Hope this helps Regards Robert Quote Link to comment Share on other sites More sharing options...
kc Posted July 25, 2020 Share Posted July 25, 2020 A way to fix the aileron servos on their sides was explained by Sid King in one of his articles - -he wraps the servo body tightly in 3 layers of 19mm masking tape and then epoxies the tape to the servo hatch. If necessary to change the servo then the masking tape is cut away and peeled back. He noted that the hatch needs to be firmly screwed in place. I have not tried the method myself but it sounds good and comes from a most experienced aeromodeller. Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted July 25, 2020 Share Posted July 25, 2020 Quote Link to comment Share on other sites More sharing options...
PeterF Posted July 25, 2020 Share Posted July 25, 2020 You could use one of the slim wing servos such as the Hitec HS125, this type was recommended on a 1/4 scale moth I built. Hitec HS125 Quote Link to comment Share on other sites More sharing options...
Geoff S Posted July 25, 2020 Share Posted July 25, 2020 I'm using Corona CS238MG analogue servos in my Sopwith Pup. They come supplied with brackets for sideways mounting and have more than adequate torque. They're not very small (mini rather than micro at 22 gms and 29x13x30mm). Geoff Quote Link to comment Share on other sites More sharing options...
Neil67 Posted July 25, 2020 Author Share Posted July 25, 2020 Many thanks guys, much appreciated. Neil Quote Link to comment Share on other sites More sharing options...
Martin McIntosh Posted July 25, 2020 Share Posted July 25, 2020 I use a lot of Corona 239MG ones which are side mounted, 10mm thick, cheap, 4kg and reliable. So easy to fit in almost any wing. A plate over the top on the average model is a complete waste of time in my humble opinion. I do use standard servos sometimes when the wing thickness will allow a vertical mount but never again on their side, it is just too much trouble. Quote Link to comment Share on other sites More sharing options...
Jeffrey Cottrell 2 Posted July 25, 2020 Share Posted July 25, 2020 Hi Guys I can vouch for Sid King's method, worked for me many times. I use heatshrink rather than masking tape, purely because it looks neater. I give the plate a coat of sanding sealer, then glue the servo on with EvoStik, or Shoo Goo, which dries a little rubbery for vibration protection. Leads me on to this. I used to buy the plates from a company long defunct. Did post on here a while back, but no-one knew of a source. Talking to Neil of iGull a while back, suggested these might make a good addition to his product line. He asked for dimensions of a plate, which I supplied. Just got an e-mail back from him, linking to this. Looks a nice job. Before anybody says 'it's only a square piece of ply, agreed, but I have neither the tools or the ability to cut the slot so it looks professional. Happy to pay for someone to do that. Here's what one looks like in use Cheers Jeff Quote Link to comment Share on other sites More sharing options...
cymaz Posted July 26, 2020 Share Posted July 26, 2020 I use THESE. Never had one fail. Though you’ve got to have the correct size of hole for it Edited By cymaz on 26/07/2020 05:44:59 Edited By cymaz on 26/07/2020 05:46:31 Quote Link to comment Share on other sites More sharing options...
Chris Walby Posted July 26, 2020 Share Posted July 26, 2020 Inwoods do various sizes in ply with the lugs (should you wish to use them) and might be easier to paint/cover than plastic. Give Dave or Nick a call to source the correct size. PS they don't have the aerodynamic blister like the SLEC ones Quote Link to comment Share on other sites More sharing options...
Jeffrey Cottrell 2 Posted July 26, 2020 Share Posted July 26, 2020 Chris Can't find any servo mounts on Inwoods site. Could you post a link? Jeff Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted July 26, 2020 Share Posted July 26, 2020 Inwoods **LINK** Quote Link to comment Share on other sites More sharing options...
Richard Clark 2 Posted July 26, 2020 Share Posted July 26, 2020 Posted by Robert Parker on 25/07/2020 18:22:53: Hi Neil, I agree with Chris, and I have done this method on many of my models including my own 66" Tiger Moth. Here is a photo of one such installation using a ply plate and hardwood strip A slight variation clamping the servo in place. these are for the flaps on a Beaufighter The servos shown are still a little OTT and I now use metal geared Turnigy or Corona 13g servos from hobbyking, good servos for little money and so far I have not had one let me down other than one which was faulty on opening the box. Hope this helps Regards Robert I do this on almost everything. Usually using Hitec HS85mg servos. Then he can just screw the hatch lids to the rails, which is probably what the builder intended. Quote Link to comment Share on other sites More sharing options...
Geoff S Posted July 26, 2020 Share Posted July 26, 2020 Those are the plastic SLEC servo mounts not the plywood ones Jeff is seeking. Geoff Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted July 26, 2020 Share Posted July 26, 2020 Posted by Geoff S on 26/07/2020 15:57:26: Those are the plastic SLEC servo mounts not the plywood ones Jeff is seeking. Geoff I was just trying to liven things up Geoff, I can't see the ply ones but it is simple to glue two blocks into ply Quote Link to comment Share on other sites More sharing options...
Martin McIntosh Posted July 26, 2020 Share Posted July 26, 2020 Some of you guys seem to do it the heavy/hard way. All you need for a vertically mounted servo is a 1/8th balsa box to iron the covering to, and a couple of pieces of 3mm lite ply glued to 1/4 balsa and faced with 16th birch as above. Edited By Martin McIntosh on 26/07/2020 17:34:07 Quote Link to comment Share on other sites More sharing options...
Jeffrey Cottrell 2 Posted July 26, 2020 Share Posted July 26, 2020 Hi all Geoff Quite right, they are not the ones I wanted. They are (were) made by Radio-Active, but now distributed by Ripmax or Perkins, so available at multiple sources. Denis It is a simple matter to glue two blocks to a piece of ply, but as I mentioned in my post, I do not have either the skill or the equipment to machine the slots to a professional standard. Bearing in mind these are a very visible part of the install, quite happy to pay someone to make them for me. Nice to find a manufacturer prepared to listen to customers suggestions, and act on them. Try that with a Chinese company. Anyway, there we are. If anyone wants to try these, now you know where to get them. Jeff Quote Link to comment Share on other sites More sharing options...
kc Posted July 26, 2020 Share Posted July 26, 2020 All you need to cut neat slots in thin ply is a drill and a Stanley knife with new blade. Drill a hole at either end ( using a guide hole in a piece of ply and a backing scrap block if you want to avoid the surface splitting ) and cut between them with a Stanley knife and straight edge. Cut thro as far as possible and then cut from the other side if necessary. Quote Link to comment Share on other sites More sharing options...
Chris Walby Posted July 26, 2020 Share Posted July 26, 2020 Jeff, They are not on the web site, hence why I said to give Dave or Nick a call + they have a range of sizes to fit different servo cases. Hope that helps, Quote Link to comment Share on other sites More sharing options...
Richard Clark 2 Posted July 27, 2020 Share Posted July 27, 2020 Deleted Edited By Richard Clark 2 on 27/07/2020 12:02:58 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.