Hangarqueen

The designer showed them on this German forum thread about the RBC kits Fouga: https://www.rc-network.de/threads/rbc-kits-fouga-magister.11869447/page-3 I think this guy will provide you with the STL files on simple request (I know he did for other builders of the same kit)

Well, as the Fouga has its roots as a glider, 10kg of thrust should be enough at 12kg AUW. Are you planning on implementing scale speedbrakes? I've seen some very nice examples 3D printed in other builds, even though they might not be very effective.

I just found the info on the previous page, sorry for overlooking that.... I'll be very curious to the final weight. Phaedra

Wow, great stuff. As (yet another) Belgian, I've been looking for a good Fouga RC model for a while now, and I'm amazed that I haven't found this thread earlier. I might have overlooked this info, but what will you power it with? Last time I saw the real thing, was in 2019, "Liberation Days" at Deurne Airport (EBAW). I'll be following this one!

I always do a range check with the model about 1 meter above the ground, in "all" directions (I rotate the model on a stand and do the range check again) to detect any reception blind spots. Vegetation like grass (anything containing water basically) blocks out a 2.4 GHz signal in a very effective way, so make sure there isn't anything like that between transmitter and receiver.

I have been a very big fan of OpenTX since I bought my first Taranis around 2013 or 2014. The only thing that I disliked about it was its poor hardware quality. The long switches at the back broke off just by looking at them, and the plastic switches around the screen were just as awful as it gets. In terms of capabilities and features, OpenTX wins hands down. Not to mention the Companion program, which allowed me to bypass the very awkward way of navigating through the menus on the Taranis, and not having to use the no-feedback plastic select switches around the screen. After damaging the antenna (my stupid mistake), I got errors about the antenna on the screen, so I replaced it by a Horus X10S, which is brilliant in so many ways, except its weight and the battery life. I replaced the battery with a 2P2S Lipo, getting me 7000mAh and many days at the field before a recharge (that also takes as many days, lol). When Ethos came out on the X20, I was intrigued, but I share the feeling about a closed and proprietary system. Recently, a fellow club member sold his X20S for a price that I couldn't refuse, so I decided to try it out. First of all, I'm not a fan of touchscreen. The buttons are way too small to be practical, even with my tiny little fingers. And having to really avoid touching the screen when manipulating the radio around the field is another worry that I have. I want at least to be able to disable the touch function when I'm not programming the radio. Ethos has caught up considerably with OpenTX, but I'm still missing things like real calculated telemetry fields, using simple arithmetic. I'm used to measure current, then calculate power by multiplying it with battery voltage. Not possible on Ethos at this point. A lot of things are clearly derived from OpenTX, but implemented differently and located at other places in the menus. Take for instance the "delay up" and "delay down" on a channel. In OTX, it is in the channel setup screen, next to the "slow up" and "slow down". In Ethos, you have to use a sequencer mix (I think). All settings that you can find together in the channel setup in OTX are spread over "Mixes" and "Outputs" in Ethos. It takes some getting used to. OpenTX development seems to have come to a halt somehow, and morphed into EdgeTX. I don't know what to think of EdgeTX, but it feels to me like it is being branched all over the place to implement all sorts of features and multi-protocol stuff, which scares me as a software architect. I really like the hardware, the form factor and the weight of the X20S, even as a "pincher" (I added a tray and long sticks with integrated switches). I even prefer those aspects of it over my X10S. Except the screen, which is much brighter on the X10S. The screen on the X20S is a bit harder to read in sunlight, probably due to the touch screen layer. I have kept an open mind over Ethos, I'm starting to get used of it but still find some things awkward. Maybe it's my programmers brain that prefers OTX being more logical and organized than the "fancy layer" that Ethos is and confuses me all the time? I feel like being forced into some straightjacket of pre-programmed mixes that I don't need and don't use. Which is the very reason why I never liked radios like Spektrum; I could never figure those out. You have to find in whatever they supply as mixes and try to achieve simple stuff by endlessly combining and manipulating preprogrammed stuff. In OTX, I just select a certain channel, then add and mix whatever inputs that I want to combine. Where is the steep learning curve in that? But I keep an open mind over Ethos, and try to program my existing models in it, one by one, to learn and test. And I must admit, it's good, it works well so far. I use both radios at the field, and don't have any problems going from one to the other when changing models.

Love the Lysander. I used to share the landing circuit with a restored Lysander, in the nineties. It was a very impressive airplane, both on the ground and in the air (you could quickly locate it around you by the blue smoke trail it left behind ? ) I'll be following this one with interest. Does it still have the (too) long nose cowl?

I've been flying the living daylights out of one of these for the last 3 years. With the slotted prop, it was extremely loud to my liking, so I started to modify it. I bought a couple of multicopter motors and props, as they are extremely efficient for this kind of thing, and mounted them directly on the tailerons. I did have to seriously reinforce those, because the forces acting upon them with this configuration is extreme. Now I have a hand-launch thrust-vectoring Su-35 with a power-to-weight ration over 1:1. I hold it vertically, give it full throttle, and it just accelerates out of my hand. It is extremely agile; it does backflips and a cobra maneuver effortlessly, and it rolls like a powerdrill. And with less noise (but still noisy, though) To protect these 3-bladed pusher props during landings, I added a couple of tail skids

I'm sorry Paul, but I didn't quite understand what you meant. In general, and depending on the type of amplifier, you could vary the supply voltage of the amplifier and that would have an impact on the output power, but only within a limited ranged range I think. If the supply voltage drops too much, the power transistors wouldn't be able to function within their linear range. I've never looked at an amplifier this way, as it is designed with a fixed supply voltage in mind. It would be interesting to know what happens when you lower this voltage, although I'm not going to try it on mine ?

I have no schematic of the sound unit, but a potentiometer is a voltage divider, while a brushed controller does "chopping" of the current to a motor. So I don't think you could achieve this by using a brushed controller.

In my BH Spitfire, I installed a sound unit, for that extra touch. It is a wonderful Merlin sound, it really adds to the experience, but the problem is that on the ground, it is often too loud to be comfortable if you set the volume to a level that is perfect for in flight. The volume control on the MrRcSound is manual, through a small rotating knob on the side of the bottom PCB. As the sound unit is usually well buried inside the fuselage, it isn't easy to experiment with the volume. Ideally, the volume is controlled from a spare receiver channel, so it can be adjusted in flight. I thought about different solutions to achieve this, like using a digital potentiometer instead of an analog one (but I would have to add even more electronics to control it through ppm). Mounting a small servo on the knob posed two problems: - the rotation axis of the knob is inside the edge of the PCBs, and there is no room for a servo between the PCBs. Mounting it on top of the PCBs isn't an option. - a standard servo rotates over only 90 degrees; I want to be able to vary between lowest and highest volume And so I de-soldered the potentiometer from the PCB (caution, this requires some experience and patience, ans it is soldered through the PCB) and connect it through a servo cable to the unit. I could now mount it away from the sound unit. I then modified a servo by adding series resistors to the feedback potentiometer of the servo. By experimenting, I found the required resistor values to get pretty close to a 180 degree rotation range of the servo. As there was little room inside, I had to mount them outside of the servo housing. I then hot-glued everything together for testing, and it works like a charm Next step is to mount everything inside the Spitfire and take it outside for testing.

I built my first RC model in 1985 in a model stored owned by a very old man. I was looking for a trainer model, so he helped me choosing something appropriate. We settled for the "Ginca" from Mantua models. He recommended a Super Tigre motor for me, which I ran in patiently before attempting a maiden flight. This maiden flight ended in a stall. I repaired the model, but it never flew again since there weren't any clubs nearby that allowed IC powered models. I'm still considering to convert it to electric, just to get it in the air again, for old times sake. After training on a small motor glider, I then flew a Graupner ASW22BE vario glider in 1993, which I still fly today. Around that same time, I bought a 2m span hotliner glider for which I never found the right motor-prop combo, until recently. A fellow club member crashed his Robbe Amplitude, which is roughly the same size and weight as my nameless model. I bought the motor from him, and now it goes like a rocket.

I use dual Schottky diodes to combine two power sources. These extremely cheap components have 2 inputs and 1 output. I connect the red wire of each ESC to the inputs, and the output to the receiver.

Today I was able to have my mother over for a visit. An important moment, her first trip outside since she had a very nasty fall on the 3th of January, when she broke her hip. Indestructible as she is, she has made a full recovery at her 88 years of age. I got the Mosquito out again for her She doesn't remember many details, but she clearly remembers some aerial combat above the woods where we used to play as a child. She saw Mosquitos and Spitfires fighting German fighters and even chasing V1 bombs. She heard the rattling of their machine guns, being scared to death. She remembers running to their shelters as they heard the droning of the bomber squadrons approaching. She still remembers vividly the terrifying sound of the V1 bomb, and hearing the engine stop, followed by a loud explosion nearby. What a horrible time that must have been. My father, who passed away more then 20 years ago, used to tell his story about low level aerial combat between a Spitfire and a 109 above his head, when he threw himself to the ground in a field. He grew up really close to the airport, hence they were close to a popular target. War is never beautiful.

Well, to be honest, I feel that the BH Mossie flies better and more stable then the Freewing one. I never had the Parkzone, but a fellow club member had a similar incident with one. One engine quit and he drove it into the ground like a fence post. The Freewing Mosquito had extremely long motor/propeller shafts and 3-bladed props, which meant that in case of a belly landing, chances were that you had a bent motor shaft. SO I avoided doing belly landings as much as possible, but due to all the trouble I had with the retracts binding, I had to do a few of them. When I looked for a new Mosquito model, I had a look at the Seagull version too, but then I read all the horror stories about them. Too many crashes to my liking, it can't be a coincidence anymore. It's a shame, because it's a beautiful model. I wish I had the patience and the skills to build a BT Mosquito. But I'm preparing my BH Sptifire again, can't wait to have that one in the air again. Wonderful flying model, great presence in the air, a real shame and very surprising that it isn't that easy to get by in Europe. I love Erik "Winkle" Brown's stories too, I have his autobiography, and it is just stunning to read about his experiences. He was a pilot pur sang.