Stuart Eggerton
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Posts posted by Stuart Eggerton
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Hi, I am going to be building the Sagitta XC glider this winter, it uses 11/32 brass tubes, joined with a metal wing joiner rod for the main wing joining method. Can anyone suggest a good manufacturer that can supply this diameter of wire. The brass tube is 8.73mm outer diameter. Can anyone recommend a diameter of wire which will fit, not too tight or loose?!!!
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Thank you both for your replies, I have put on order an ammo box immediately! I think the black smoke in the video with seal in place would be the rubber seal burning, that would create toxic gasses. I have a concrete floor so will keep the batteries on it maybe chocked up on two house bricks!
Edited By Stuart Eggerton on 26/01/2021 15:14:56
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Hi all, I keep all of my lipo batteries in a safe which is fire proof and lockable, it has a lid which closes down tightly to seal the safe and it's quite heavy. My question is, if one of the liops malfunctioned and ignited and set the others off would the build up of pressure inside the safe cause it to explode? would I be better to drill a couple of holes in the safe to let any gasses out should they be become present?
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As Chris say's the Condor was updated to version 2 in 2018, what can I say it's brilliant. I have every glider for version 2 released to date. The flight dynamics are extremely realistic as is the thermal model. You can race gliders competitively or just pootle around your local site, or soar in the Alps, whatever you want
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Thanks both for info, I have ordered the mag from Ebay. Hopefully there will be some info there. I will be putting up a build log of the Algebra 1000 in due course. I had the Algebra 100 in the 1990's which flew brilliantly. Thanks again both and Happy Christmas
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Top surgeon criticised for using wrong parts for head transplants!
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I have started to make the Algebra 1000 glider from Dick Edmonds plan. I have already made the wings and wonder if anyone has a set of building instructions for the fuselage. It's a rolled ply version and has built up wings also. The model dates back to the 1990,s so it was a while ago!
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Tom was a good friend of mine, always a gentleman, welcoming, very helpful and kind. Tom always had 10 or so engineering solutions for every problem! they don't make em how they used to. Tom will be missed by many many people. RIP my friend.
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Very nice
I am hoping to catch a summer thermal with my SG-38! don't laugh I will! and will document it with a Gopro! -
Hi Nigel, wow that looks like a really professional job
. I am glad she flew well. -
Hi Nigel, can you tell me the approximate flying weight of the model please. This will determine the motor selection. Will you be using a 3 cell lipo battery? I am not an expert on motor selection so might have to ask Tom Wright2 for advice based on the weight.
Edited By Stuart Eggerton on 01/03/2015 13:32:36
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Can't wait to see the finished article flying
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Hi Nigel, I have taken a photograph of the SG-38 in side elevation. I have measured the thrust line in relation to the top beam that runs from the tail to rear wing joiner and the angle difference is 11 degrees. Hope this helps?
Edited By Stuart Eggerton on 25/02/2015 17:40:56
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Hi Nigel, well done! Well what I did with my SG-38 is simply ran two sets of piano wire through the fuselage, making sure the joints were good and strong.
The wings have brass tubes built into them to accept the piano wire, please see photo below. This way they wings are removable. The piano wire is quite stiff within the brass tubes and I have had no problem (to date!) with the wings coming undone.
Not flown the 38 in a long time and am looking forward to dusting her off and getting her back into the air soon.
Edited By Stuart Eggerton on 24/02/2015 22:05:25
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Hello, I have a set of plans for the Cambrian Models Navion ultralight, which was a 60"wingspan pusher model. I built one in 1989 but never got around to flying it as had just left school and then was sudying my A levels and so gave the model to a modelling friend.
Has anyone built a Navion or flown one?Edited By Stuart Eggerton on 02/11/2014 10:31:43
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Hi Paul, please send me an email to [email protected] and I will send you a link to the full size drawings.
Regards
Stuart
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Very nice Tom
Edited By Stuart Eggerton on 21/06/2014 08:05:29
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Hi Phil, I have recently acquired a plan for the Algebra 1000 glider, which has a 3 metre span and is the larger brother of the Algebra 100 2.5 metre span). There is a post for the algebra 1000 glider here which shows the cg in mm. My plan has the same information.
Chord of wing section measured directly from my plan (for the 3m span Algebra) is 232mm. So the cg will be between 81mm to 87mm from the leading edge or 35% to 37.5% wing chord from the leading edge of the wing. I don't know if this could be translated to the smaller algebra 100, but don't see why not?
Edited By Stuart Eggerton on 25/05/2014 15:17:55
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Hi Phil, I found a great Facebook page for the Algebra Model glider, you may find some useful information click here
I am going to be building the 3 metre Algebra 1000
, that's if I ever get my bungalow and workshop finished hehe!Edited By Stuart Eggerton on 19/05/2014 22:13:24
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Hi Erflog, thanks for the pictures of the Algebra, yes I built (I used that term loosely) a 2.5metre (100" Algebra from EMP Edmonds Model Products, it had a rolled ply fuselage, one had to soak a sheet of plywood in the bath overnight! The wings were foam core and obeechi skinned. The tail feathers were solid balsa.
There seem to be quite a few different variations of the Algebra design about, I think the first Algebra's were designed by Sean Bannister and later ones by EMP.
Yes the modern, slippery glass ships are very tempting due to their crisp and amazing performance in the glide. As you say some of the old timers were well thought out designs and gave stood the test of time in that aero-modellers are still building and flying them today.
I found a Facebook page which is dedicated to the Algebra model gliders, please click the link here **LINK**
Edited By Stuart Eggerton on 01/05/2014 18:59:38
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Hi Pete, thanks for the link to the Caliber, it looks sleek and slippery and interestingly used the Selig 3021 wing section, the same one that my old algebra used to use. I remember diving the 100" Algebra from great height and it used to howl. Flutter would be induced in the Gentle Lady at half the speed!
Hi Erflog, well the Sagitta look a fine model, i like the position of the tailplane, quite high up. If it performs as well as you say which I am sure it does, then this would be a great contender for a build.
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Thanks for the replies, the hotliners you suggest Mowerman look very fast and worth investigating a bit more, thanks for the link to those sites. Tom, I did once put a bolster chisel in a Gentle Lady back in the late 90's and it did penetrate into the wind better! I will check out the Skybench model series as well. Of course full size gliders benefit from water ballast carried in wing tanks.
Nick, my latest Gentle Lady is EP and will get back to the field from downwind with application of adequate power....but....I like to do it by gliding. Now that may seem a bit hypocritical as why have a motor up front in the first place. Well I believe a motor gives more options, options to get higher, options for a go-around and for getting back to site under power if one has to.
I am ideally aiming for a gilder that I can propel electrically to soaring altitude and then fly in soaring mode, taking thermals downwind, then getting back upwind for the next thermal without losing all the altitude gained in the thermal!
Frank, I tend to fly from flat field but do enjoy the slope too
.Edited By Stuart Eggerton on 29/04/2014 20:59:06
Edited By Stuart Eggerton on 29/04/2014 21:00:05
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Hi all, I am looking to build a glider or two during the winter months and I am after an RC glider which is of traditional 'built up' construction, but yet has good penetration qualities against a head wind.
I currently fly the Carl Goldberg Gentle Lady, which is a 78" wingspan floater, it's a great glider and climbs on the merest sniff of a thermal and the duration is amazing for a 2m ship, but...... if there is any wind above say 8 -10 mph then it's a case of converting all that height gained in the thermal to get back upwind again!
I also have a Bubble Dancer that I have scaled up from 3 metres to 3.7metres but in a blow it does hover quite a bit.
I used to have a 100" Algebra from the Dick Edmonds series, that has a Selig 3021 wing section and was able to get back upwind from a thermal.
So my question is, what experience with this kind of thing have you glider folks had and what would be an ideal glider for getting back upwind. The span I am after would be from 2m - 3m.
Stuart
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Hi Grasshopper, please PM me and I will send you some full size plan pics of the SG-38 which will help you with your design?
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Piano / wing joining wire
in R/C Retailers / Distributors / Manufacturers
Posted · Edited by Stuart Eggerton
Hi Nick, thanks I checked and the 8mm drill bit fitted the brass tube perfectly:-). I hadn't thought about such a simple solution. I have found a good supplier. This will allow me to start making the spar for the Sagitta XC. I had used carbon before but had it shear in a hard landing. Thanks for everyone's comments and help, it's been much appreciated.