Nigel Hawes Posted March 19, 2015 Author Share Posted March 19, 2015 Hi Simon, An SC.25 is very much at the top of the power tree for this model so you would need a very small 4-stroke. I'm not familiar with i.c. engines as I've only operated electric models for the last 20 years, but back then an OS FS.20 or HP VT.25 may have done the job, but you won't be able to use anything heavier than the SC.25 (300 grams) or you'll never achieve the C of G without having to add lead weights to the rear of the fuselage, which isn't ideal. Hope this helps! Nige. Quote Link to comment Share on other sites More sharing options...
Simon Atkinson Posted March 21, 2015 Share Posted March 21, 2015 Posted by Nigel Hawes on 19/03/2015 12:11:28: Hi Simon, An SC.25 is very much at the top of the power tree for this model so you would need a very small 4-stroke. I'm not familiar with i.c. engines as I've only operated electric models for the last 20 years, but back then an OS FS.20 or HP VT.25 may have done the job, but you won't be able to use anything heavier than the SC.25 (300 grams) or you'll never achieve the C of G without having to add lead weights to the rear of the fuselage, which isn't ideal. Hope this helps! Nige. Nigel thanks for this info. I'd thought that it would need to be small 4-stroke. In fact, my reason for posting my query was because I stumbled across the ASP 0.30 FS a few weeks back when reading up about engines -- including 4-strokes -- to get a feel for what is out there. I was surprised to find that there are no 'small' 4-strokes available any more... and OS has just discontinued its FS-30 Surpass. The ASP weighs 275g, but I will need to check if this mass includes the silencer. To be honest I prefer electric myself. Chapter one will be my first plane: previously I have flown small electric helicopters -- so it will be a whole new experience, hence all the general research. Once again thanks for your help. All the best Simon Edited By Simon Atkinson on 21/03/2015 08:16:58 Edited By Simon Atkinson on 21/03/2015 08:18:07 Quote Link to comment Share on other sites More sharing options...
Stephen Carter Posted April 10, 2015 Share Posted April 10, 2015 Hi Everyone, I have started building Chapter One and have a query about dihedral. I have finished the left-hand wing, the one with the dihedral braces in it, and have started on the right-hand wing. I have got to the point where I need to join them but when I put them together as a 'dry run' I find that the dihedral comes out at 3 inches instead of 4 inches as mentioned in the articles in RCM&E. What I would like to know is does this matter? If it does, I can adjust the exposed part of the braces to achieve 4 inches of dihedral but I will only do this if it's necessary. Has anyone else come across this? Stephen Carter Quote Link to comment Share on other sites More sharing options...
Daniel Cardona Posted April 28, 2015 Share Posted April 28, 2015 Posted by Stephen Carter on 10/04/2015 23:20:41: Hi Everyone, I have started building Chapter One and have a query about dihedral. I have finished the left-hand wing, the one with the dihedral braces in it, and have started on the right-hand wing. I have got to the point where I need to join them but when I put them together as a 'dry run' I find that the dihedral comes out at 3 inches instead of 4 inches as mentioned in the articles in RCM&E. What I would like to know is does this matter? If it does, I can adjust the exposed part of the braces to achieve 4 inches of dihedral but I will only do this if it's necessary. Has anyone else come across this? Stephen Carter Can you or did you confirmed that the dihedral braces shown on the plan give you 4 inches of dihedral. I'm asking because it wont be the first time that there are Discrepancies onto the plans, the author in the article says 4 inches and then you find that the plans says or show 3 inches. it happened for me once while building alex whittaker bushwacker a similar trainer to Chapter 1. i had to confirm with Alex himself, you can take a look at my album to see what i mean i think i took pictures about that if still they are there. Check your plans just in case Regards Daniel Quote Link to comment Share on other sites More sharing options...
Daniel Cardona Posted April 28, 2015 Share Posted April 28, 2015 I found this in my album below you can see at the top the correct dihedral brace as per Alex design and at the bottom the one that was shown on the plans you can see there was quite a bit of difference luckily i always check before i fit Quote Link to comment Share on other sites More sharing options...
Daniel Cardona Posted April 28, 2015 Share Posted April 28, 2015 Posted by Simon Atkinson on 21/03/2015 08:16:05: Posted by Nigel Hawes on 19/03/2015 12:11:28: Hi Simon, An SC.25 is very much at the top of the power tree for this model so you would need a very small 4-stroke. I'm not familiar with i.c. engines as I've only operated electric models for the last 20 years, but back then an OS FS.20 or HP VT.25 may have done the job, but you won't be able to use anything heavier than the SC.25 (300 grams) or you'll never achieve the C of G without having to add lead weights to the rear of the fuselage, which isn't ideal. Hope this helps! Nige. Nigel thanks for this info. I'd thought that it would need to be small 4-stroke. In fact, my reason for posting my query was because I stumbled across the ASP 0.30 FS a few weeks back when reading up about engines -- including 4-strokes -- to get a feel for what is out there. I was surprised to find that there are no 'small' 4-strokes available any more... and OS has just discontinued its FS-30 Surpass. The ASP weighs 275g, but I will need to check if this mass includes the silencer. To be honest I prefer electric myself. Chapter one will be my first plane: previously I have flown small electric helicopters -- so it will be a whole new experience, hence all the general research. Once again thanks for your help. All the best Simon Edited By Simon Atkinson on 21/03/2015 08:16:58 Edited By Simon Atkinson on 21/03/2015 08:18:07 I used a SC30FS on my BUSHWACKER which i think is similar in size and weight of the CHAPTER ONE, it flew very well and i didn't find it too overpowered the can overwhelm you. the only problem was that it needed more downthrust. i think about 7deg or maybe more. Quote Link to comment Share on other sites More sharing options...
Chris Rayner 1 Posted June 5, 2015 Share Posted June 5, 2015 Hullo Nigel, I dismissed my foam-e Wot 4 yesterday. I have a sneaking suspicion the elevator servo failed, but it's hard to tell from the debris. Anyway, the motor and sundry bits survived the impact, and I quite fancy building one of these. However I'd like to make a naileron wing. Any idea when the plans'll be published? I could probably work something out for myself, but I'd rather not if you've done all the spadework. Quote Link to comment Share on other sites More sharing options...
Nigel Hawes Posted June 5, 2015 Author Share Posted June 5, 2015 Hi Chris, David Ashby is the best person to ask about this, I submitted the article and plan some time ago so I can only assume it's in the process of coming up for publishing. You can E-mail him at the editorial address in the front of the magazine. Hope this helps! Nige. Quote Link to comment Share on other sites More sharing options...
Tim Maton Posted September 27, 2015 Share Posted September 27, 2015 Hi there, Bobby basic question but I've just built the fuselage for this and am about to move onto the wings but am really struggling to source the 4mm spruce spars for them, does anyone have any ideas on where to get them? I've tried all the online balsa places and no-one seems to stock that size?! Any help would be greatly appreciated as it becoming quite frustrating! Thanks in advance Tim Quote Link to comment Share on other sites More sharing options...
Colin Anderson Posted October 29, 2015 Share Posted October 29, 2015 I've had the plan for this model for some time and have been waiting for the aileron wing plan to appear. I've just picked up the latest issue of RCM&E in which said plan was to appear. Well, the article is in the magazine, but the wing plan isn't! I checked every copy in Smiths and Tesco's and it isn't in any of them. This is very disappointing after waiting so long. As I've managed to destroy my Wot 4 and the power train is similar I was really looking forward to building this plane. 😕 Quote Link to comment Share on other sites More sharing options...
Alistair Scolley Posted October 29, 2015 Share Posted October 29, 2015 Colin, The aileron wing for Chapter One is printed on the back of the free plan of the Cruiser, though you've got to take the plan out of the magazine to find it. Alistair Quote Link to comment Share on other sites More sharing options...
Colin Anderson Posted October 29, 2015 Share Posted October 29, 2015 Thanks Alistair. 'Course I'm feeling pretty daft now! It is indeed on the inside of the Cruiser plan; it wasn't possible to ascertain this in the shop. It would have been pretty embarrassing if I'd rung them! 😂 Cheers, Colin. Quote Link to comment Share on other sites More sharing options...
Colin Anderson Posted November 1, 2015 Share Posted November 1, 2015 I'm a little confused here. In this thread it's stated that there is 1/2 (12.7 mm) dihedral under each wingtip of the aileron wing, which would be 1 inch (25.4 mm) total. However, in the magazine article it states 20 mm (0.8 inches) at the wingtips or 40 mm (1.57 inches) total. Which is correct? Quote Link to comment Share on other sites More sharing options...
Daniel Cardona Posted November 2, 2015 Share Posted November 2, 2015 Check the angle of the dihedral brace on the plans, and confirm that with the plan. There might be an error on the plans. Quote Link to comment Share on other sites More sharing options...
Tim C Posted November 2, 2015 Share Posted November 2, 2015 The Aileron wing was planned and I suspect the prototype had 1/2 in under each wing, Mine did, however 20mm would also be just fine as Daniel says see how it works out with the dihedral braces Quote Link to comment Share on other sites More sharing options...
Francis Routley Posted November 2, 2015 Share Posted November 2, 2015 Hi, does anyone know if the cnc parts kit contains the Aileron ribs? Quote Link to comment Share on other sites More sharing options...
Daniel Cardona Posted November 5, 2015 Share Posted November 5, 2015 how does the aileron wing looks? barn door type or just aileron stock attached to the trailing edge of the wing? the RCME November Issue is still not available here that's why I'm asking. Is the wing flat bottomed section as well? Quote Link to comment Share on other sites More sharing options...
kc Posted November 5, 2015 Share Posted November 5, 2015 The article says the aileron wing has a different rib section - not flat bottomed, so it says you need to change the wing cutout in the fuselage. Presumably the aileron wing ribs are not in the ordinary CNC kit, maybe they will produce a just a set of aileron wing ribs? I think they are strip ailerons. Quote Link to comment Share on other sites More sharing options...
Daniel Cardona Posted November 5, 2015 Share Posted November 5, 2015 any photo's of the aileron wing? just to have an idea how it looks. Thanks Quote Link to comment Share on other sites More sharing options...
Colin Anderson Posted November 5, 2015 Share Posted November 5, 2015 The wing is the same span an same cord, with less dihedral. The ribs are semi elliptical so, if you've already built the fuselage you'll need to modify the wing seating. It uses two servos to drive strip ailerons; the servos are set inboard, just outside of the fuselage. Hope this helps. Quote Link to comment Share on other sites More sharing options...
Steve Hargreaves - Moderator Posted November 5, 2015 Share Posted November 5, 2015 I intend to use "flat bottomed" ribs for the centre section so I don't need to modify the fuselage....that way I can swap between 3 & 4channel modes as the mood takes me...or rather takes my 8YO.... Quote Link to comment Share on other sites More sharing options...
kc Posted November 5, 2015 Share Posted November 5, 2015 Whilst that sounds like a neat idea Steve what about the spars and wing joiners? The spars would surely be nearer the lower surface on a symmetrical wing and wont go right across the fuselage. A bit of a weak point just where it matters and in a model that will be more aerobatic & stressed. Only for experts like Steve I suggest, others should stick to the plan.. Edited By kc on 05/11/2015 17:18:37 Quote Link to comment Share on other sites More sharing options...
jeff2wings Posted November 5, 2015 Share Posted November 5, 2015 Would it not be better to build the fuse for the symmetrical wing and then add a bit extra onto the 3ch wing under side ? just a thought . Quote Link to comment Share on other sites More sharing options...
Tone Mak Posted November 5, 2015 Share Posted November 5, 2015 Hi Nigel, Toné here!!!! Is there a complete wood and metals pack available from my hobby store outlet for the aileron version of Chapter one using electric power? Please advise. Toné Quote Link to comment Share on other sites More sharing options...
Steve Hargreaves - Moderator Posted November 7, 2015 Share Posted November 7, 2015 Posted by kc on 05/11/2015 17:17:06: Whilst that sounds like a neat idea Steve what about the spars and wing joiners? The spars would surely be nearer the lower surface on a symmetrical wing and wont go right across the fuselage. A bit of a weak point just where it matters and in a model that will be more aerobatic & stressed. Only for experts like Steve I suggest, others should stick to the plan.. Edited By kc on 05/11/2015 17:18:37 You may be right KC....I probably won't know for definite until I have all the bits on the bench but it seems to me that the deviation for the rear spar should be slight. My main issue is that my 8 YO who flies it likes the model as it is (rudder & elevator) but fancies the idea of ailerons. The ability to swap between the two wings would potentially be quite useful....... I can get another 100W out of the motor set up by changing the prop so with the new wing & the big prop there is quite an aerobat in there waiting to be discovered I think..... Quote Link to comment Share on other sites More sharing options...
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