Just ordered the Phantom Flash kit AND cap kit for my boy & I. I may be more excited than he is! I didn't let he watch the video to keep the suprise factor up. Thank you for your braiding video too - can't wait to try it all out in a few of our Guillows builds.
Wow that was really cool to see how well it went on the cap! Worth a try and seems better than having to wind. Tho does turn it into quite a hotrod at launch eh! Great stuff as always! 👍👍👍
@@joshuawfinn lots of lovely dimescale plans out there! I have a folder full of printed dimescale plans waiting to be built. Would it need a geared motor and bigger prop for a typical dimescale?
Hello...really wonderful. Do you have the components and the kit in your store? I am interested in including it as a model for the boys' model airplane workshop. Greetings
It looks like 20-25 seconds motor run. Close? Way more power than I expected. Looks like it would work on scale models up to maybe 24". Dime scale would be a breeze, if you could trim it OK.
It's got 25 seconds of really good power plus a long cruise. Props on these are a little small for dimescale but definitely suitable for sport models into the 20" range and peanuts, possibly light dimers too.
Far be it for me to suggest to you guys anything about trimming, but... I really do think that some down thrust is needed here. I mean those power loops and all... However, if it didn't use all that excessive power in those loops, it could easily get so high that it just flies away. Another argument for R/C rudder. Also, don't you think that the power applied by that capacitor is a bit excessive in that model? What is that capacitor's relative weight, power and duration with that or a larger propellor vs. an equivalent battery?
The real issue is that the CG is too far forward so it's flying with too much incidence. Were we to move the wing forward and shim the trailing edge up maybe 1/32", it would assume a looser spiral on the way up. That said I'm not sure the flight times would increase that much. We did have a special motor developed later that provides a flatter power curve and that would probably help extend the flight times out toward 3 minutes...which is kinda ridiculous for one of these.
@@joshuawfinnI bow to your experience in these matters and make these suggestions with due respect. I understand your solution, but, as you know, there is usually more than one way to affect flight characteristics. I'd try downthrust first as it's the simplest fix. You can always do a CG and incidence fix as well. Is it that you think that reducing the wing's' incidence will reduce some decalage and thereby reduce some of the nose up force? The problem is that reducing the wing's incidence also increases the thrust angle, which seems to me to be antithetical to the solution of the problem. IMO, getting that model in its current pure FF setup to fly much higher and longer without some way to keep it reasonably overhead (or at least in the vicinity and out of the trees), or using a DT, is simply asking for trouble.
Nice video! How do you prevent from rolling issue? a lot free flight aircrafts don't even have adjustable rudder and ailerons, but they are not rolling.
Dihedral takes care of the problem. If you set the CG correctly and the adjust elevator trim for a stable pattern and have correct dihedral, they fly quite well with no moving surfaces.
@@joshuawfinn Thank you. My free flight plane has rolling issue caused by motor. It flies fine when motor turned off, but rolling when motor turned on. I will try dihedral wing.
@@linsfunbox4052 you absolutely need dihedral for it to remain stable. Also make sure there aren't any warps in the wing. If it's rubber powered you may need some warps, particularly for a left turning indoor model, but it depends upon the aircraft type and desired flight profile.
Is that a super cap? Also I definitely wouldn’t recommend holding the cap when you plug it in. They can explode. Not very common on small low voltage caps but too much voltage it will. So definitely don’t go higher than recommended if it’s been tested safely. Cool idea
Yeah it's a super cap. We've tested these throughout their range, they pop, complete with shrapnel, around 12v. You don't want to be anywhere in the same zip code when they go off.
Actually too much incidence. More than 5 degrees or so of downthrust just bandaids the problem and makes for an inefficient cruise, plus it becomes ineffective at high speeds.
You won't have enough energy with 5mF capacitor. I made the same mistake the first time I built capacitor free flight model - I bought a 3 uF capacitor! Also, the voltage of the charger counts.
Okay, this is the Adult Police, I’m writing you a citation for having Too Much Fun for your age group. You better shape up and dull it down, or I’m gonna slap you with some monotonous tasks in your sentencing.
