buster prop

Posted by Nigel R on 10/01/2020 20:02:23: Is your tx set up to use that channel? I understand some glider setups may not be. Thanks, that might be the problem. When I created a new model on the tx I selected ‘Glider’. I’ll try binding it as an ‘Acro’.

I have one of these receivers which I want to use in a glider. First, the servo plug orientation is moulded into the plastic next to where the servos plug into. You might need a magnifying glass to read them, I did. They are as Denis has said. Next, I was hoping to use the throttle port for spoilers (no motor) but a servo plugged into there doesn’t work from the throttle stick. Does that output only work with an ESC? If so it’s a 3 channel receiver for gliders. As this is a RES glider I’m putting the rudder servo in the aileron output to fly onthe rh stick in mode 2. Btw, don’t worry about range, I have an AR410 in an electric model, range is as far away as I can see the plane.

That’s great Phil, I hope my RES Eagle flies as well as yours, which looks good too. I’ve built the other wingtip and about to start covering it all. I’m hoping the RES Eagle is as good as the lightweight 2M gliders from Hyperflight. It’s heavier but has about the same wing loading thanks to a broader chord wing. Possibly better in typical UK windy weather. There’s another RES Eagle thread on here and I’ve put up a couple of build pictures.

This wing centre view shows that I fitted small blocks of balsa to support the covering where the wing fixing bolts go through. The spoiler will be hinged by the covering. I've planed and sanded the trailing edge to match the rib profile. The two balsa pieces attached to the W01 ribs weren't in my kit, they came from my balsa offcuts box.The outer wing tip trailing edge looks too short against the plan that comes with the kit although it does match the magazine free plan from March 2018. Luckily I have a copy which I am using to build from. Everything else seems to be ok so I think it must be a drawing error.

Hi Andy I'm building an RES Eagle as well, from the S M C kit. I'm hoping to get on with it now Xmas is over. Yes the wire rods are too short for the tow line version. I soldered lengths of piano wire onto them and covered the join with heat shrink tube. We shouldn't have to do this, I assume that a standard 36" wire was all that S M C stock. The fin fits into two angled balsa blocks on the upper side of the tail plane which is then glued onto the fuselage. It's a straightforward build but there are one or two things to think about. If you have any more questions please ask.

I’ve had mixed (no pun) results with epoxy. I have some Z-Poxy 15 minute which is quite old. Contents of the epoxy bottle had gone almost solid, I warmed it on a radiator which helped but when I mixed it with hardener and applied it to a job it never set properly. Even after 24 hours it was almost but not quite set, rubbery even. I was easily able to pull the joint apart so fixed it again with some ‘151’ 2 part epoxy from a discount shop. That worked but what a pong! I’m back to proper Araldite from Wickes which doesn’t smell and sets properly. The Z-Poxy is probably useless now although it cost me £13..

First of all, your model looks great! I am going to use transparent purple Profilm and solid white. I don’t have any transparent yellow but plenty of white left over from another build. The fin and tail plane are now covered, I understand now that you intended to angle up the wing tips, and your earlier picture showed them in the pre-bent state. I’ll put up a picture after Xmas if I can remember how to put pics onto this forum. I notice you put holes in the elevator to save tail weight, bit late for me now as it’s been covered. I did use a carbon rod joiner instead of piano wire so I hope that helps. Next job is to make another wing outer and then covering and fitting out including finding a small servo for the spoiler.

Hi again Phil. My RES-Eagle build is coming on nicely, got the fuselage, tail, one wing tip and the centre done but not covered yet. Looking again at your part built model I notice that you didn’t add the wing tip dihedral. I did because Ton altered the design after flight testing and the plan includes the polyhedral wing. The outer spars have to be angled up at R14, Ton said that the outer wings should be built flat and the spar and l.e. cut and angled up afterwards. I didn’t think that would be easy to do accurately so I made the spars first and built the panels on. Now I have to make sure the other tip has exactly the same dihedral! Btw, SMC supplied plenty of 6mm tube and 4mm rod, which fits nicely into the tube for the wing joiners.

Great! I’m a fan of Stan Yeo’s Phoenix kits. I had a Sierra 2 built from the early kit with foam cored wings. It flew very well and I eventually sold it on to make hangar space. Sometimes wish I’d kept it. Your Stage 2A looks similar, all the Phoenix slope soarers have the same look. Good luck with it and I’m sure it will fly well.

Thanks for replying Ton. I’ll make positions for the tow hook to be fitted at either location then. Front 63mm for windy conditions and rear at 73mm if it’s calm. I was surprised that the present plan includes details to fit a motor, if I wanted another 2M E-Glider I’d have bought the Red Eagle kit instead.

I have compared the two plans and the only change seems to be the tow hook position. Originally (March 2018) it was 73mm behind F03, on the kit plan it is 63mm. CG on both plans is the same, at 90mm behind the wing leading edge above F03. What difference would that make?

I went for it - and ordered a kit from SMC which was delivered yesterday. It contains an enormous rolled plan and a lot of wood with C/F spars. Apparently the diameter of spars in the outer panels has been increased because of reported flutter when launching. Can’t do any harm for a tiny weight increase. Our club is proposing to hold a comp next summer for 2M F3-RES gliders using a standard bungee. Some others have ordered gliders from Hyperflight but I thought they seemed a bit light for UK conditions. The RES Eagle is a bit heavier than those but with about the same wing loading and a viable wing section, AG36. I also have the March 2018 article and plan which I’ve studied.

Yes I do use a throttle safety switch. On my DX7 (G2) it's the H switch on the top right side of the transmitter just above the aileron /elevator stick if you fly mode2. I've set it up as a mix with the THRO CUT function and is on when the switch is towards me and off when away. That's so that I can hook it with my right index finger when about to launch or take off then push it back when the model lands. Easy to do on Spektrum, Taranis companion would be completely beyond me I'm afraid.

Steve, I tried bungee launching a few years ago and although I got the glider unhooked it lost quite a lot of height. Thanks for the tip about having slight up elevator for launch. With electric I have a bit of down to stop the climb being too steep as the model can power stall or even loop. I have seen skilled pilots hover the plane at the top of the towline, pointing into wind, then stretch the bungee vertically and ping the glider off gaining more height. Something to learn after a few successful launches I think.

Phil, I’ve ordered a kit from SMC. They rang to say there will be a delay while they get 6mm carbon spars. I think the outer panels have had the spar size increased from 4mm on the original plan to 6 because of flutter problems on launch. Our club has run electric glider comp’s for the last few years and are now proposing an F3 bungee launched 2M class so I’m having a go. I’ve been a regular E competitor so I’m used to flying gliders but not experienced at bungee launching. Other people manage and It doesn’t look too difficult as long as the glider is set up properly with no warps. Your model looks good, has it flown yet?

Hi John, you are a blast from the past. I knew you years ago and have sent a "friend" request. Don't want to hijack this thread.

Phil, Please let us know how it flies and if you can, post some pictures. I have the plan for the RES-Eagle and it’s next on my build list. Btw there is a build thread on here started by Ton, the designer. Looking at the plan there isn’t a lot of room for moving the spoiler servo it’s between the carbon spar and the front wing bolt. Our club intends to run F3 comps next year for 2M towline gliders and the RES Eagle looks like a good candidate.

Hi Alan. I have an E-Hawk 1500 and had to strengthen the pod to boom joint with glass cloth and epoxy. That was because I slope soared it and had a heavy-ish landing. Not a crash, just a typical slope arrival which one of my proper slope gliders would have survived. I know the E-Hawk isn’t intended for sloping but it actually went very well for a few flights before the breakage. I think the tail whipped sideways and snapped off the stub at the back of the pod, I haven’t used an internal alloy tube. Remember that the pushrods would have to go through the tube and there isn’t a lot of room. Good luck with yours. Edited By buster prop on 10/09/2019 10:44:01

Yes, I used to read his column in the mag even though I don’t use I/c engines. Brian was one of those people with huge experience and know-how who could explain it to anyone. A real engineer who could communicate as well, he will be missed by all of us.

Returning to my point about there being five different connectors for electric car charging, I was quoting what was in the magazine article. According to it there are: Type 1 for AC charging - now adopted in North America, Type 2 adopted by the EU for 22kW or less, Combo 2 which is an enhanced version of type 2 (the big heavy one), Type 4 for DC fast charging and finally the Tesla supercharger with a CCS connector. So CCS and CHADEMO are competing standards, like VHS and Betamax? Presumably my friend has a CHADEMO connector to charge his Nissan Leaf. I read somewhere that most car journeys in the UK are 5 miles or less which would be a big benefit in reducing emissions if we used pure electric cars as runabouts but as yet they are not so good for long journeys. That’s what the article implies. I have a petrol Focus and when I eventually replace it I will probably buy a Hybrid, if electric cars’ range and recharging facilities aren’t much improved. BTW, Don, I’m sorry I overreacted to your remark about me being of a certain age, I hadn’t picked up on the competing standards angle and thought you were implying that I’m an old Luddite. I just won’t rush out yet and buy a purely electric car but will watch developments, and this thread, with interest.

Don. According to the article OLEV was set up (in 2011) with a budget of £900M which has since ballooned to £1.5Bn so I presume that is per year. You seem to object to electric car drivers driving without paying fuel duty and that the government is subsidising them. Well, the government has committed itself to reducing CO2 emissions by phasing out petrol and diesel power by 2030. Until then it wants to reduce emissions from the millions of vehicles on our roads to improve air quality. It’s a matter of national policy, not subsidising a particular group of people. Whether the technology sorts itself out or not remains to be seen. BTW, I don’t like the insulting reference to me ‘being of a certain age’ and remembering VHS/Betamax. What does that have to do with it? I believe we have crossed swords before under a different topic.

There was a very relevant article (Britain unplugged) in today’s Sunday Times magazine. I never knew that there are five different charging plugs for EV’s. There is a so-called Euro standard plug which is apparently very big and heavy with its cable. The main point of the article was that there are simply not enough charging points in the UK to make electric cars practical for distance driving. They quote examples of people who have set off on long journeys and have had difficulty finding a suitable and working charge facility. I know someone who has a Nissan Leaf and had a charge point for it installed in his garage, but it’s a second car just used for local journeys. The UK planning for EV’s comes in for criticism. Apparently in 2011, Holland set up a consortium of companies that sell electricity and now have facilities to fast charge up to 20 vehicles at the same time. The UK? A budget to set up an office in 2009 called the Office for Low Emission Vehicles (OLEV) which is supposed to organise the motor and power industry to come up with a method of providing charge points around the country. It has a large staff, a central London office and a budget of £1.5Bn and has achieved very little. If we have a problem to solve, the answer seems to be to create a big bureaucracy in an expensive office, produce paper and not actually do much. Sounds familiar?