Houndpup Rc
Legendary member
They will have to be VERY careful when landing.....They probably have a pretty heavy wing loading so they will have to make a pretty fast approach..
2025 High speed Challenge
Zoom Master
Elite member
Careful at landing at 500 not 300 but those landing gears should make things easier and they are using FPV which might make it a lot more easier to land.
Zoom Master
Elite member
I also dont seem to understand why they choose to make the airplane smaller......they already had built a large airframe and had a really large engine to work with.......yet they still choose to make it smaller ?
Houndpup Rc
Legendary member
Smaller air frames have less drag....And are less expensive to make them go faster.
Zoom Master
Elite member
True but they already had a 40 kg thrust turbine that they were planning on using and im sure anyone who is trying to go those speeds isn't too worried about money but hey they are apparently students..so maybe money is a factor but from my experience I have found that it is easier to go faster with a bigger airframe....
Houndpup Rc
Legendary member
But how fast have you gone? When you get past 200mph things start getting harder pretty quick...
Zoom Master
Elite member
I have gone 200 mph but only once and it was with a friends airplane but from that I can say that yes 200 is fast and going faster then that is hard and requires very good piloting skills which a lot of people do not posses....but generally speaking it is easier to go faster with a larger airframe because with a large airframe u can fit a bigger engine or motor with more fuel or a bigger battery. Making the airplane bigger will also make the airplane more stable if thats something you're interested in. My favorite high speed rc jet is actually this one right here
the person who built this has apparently has gone 800 kmh with this jet !
Houndpup Rc
Legendary member
You are correct but the bigger the air frame the more drag it has....But bigger airframes are easier to fly so there is something there.
Basically using a bigger airframe is the same as a small one in terms of ease to get to speed but the bigger one is easier to fly 👍
Zoom Master
Elite member
And thats why if I do build a speedwing of this style I will make it big like in the 2m wingspan range like the one above (IF I do cause right now I dont really fly rc airplanes to much or atleast as much as I used to)
Last edited:
Hit 395 on this bird yesterday.... headed for the hills with my sister and bro-in-law
Houndpup Rc
Legendary member
Wow! 👍
Mr Man
Mr SPEED!
Mr Man
Mr SPEED!
To answer your post in the other thread Zoom master, I chose pusher jet because they’re stronger, easier to make, look awesome, and they can be very aerodynamic. I ran a 3536 1750kv motor, 1000mah 100c 6s lipo, and 80a esc, and definitely got it over 160 in a steep dive. A dive that the plane never was able to pull out of….. I’ve been working on a fully optimized pusher jet design that should hit 200mph. We’ve ran airfoil testing, and it’s the best one so far. I’ve also been trying to keep laminar flow over the entire airframe, but we’ll see on that one.
Zoom Master
Elite member
That’s good to hear and airfoil testing ? And I was just curious why u haven’t made a normal speedwing like mine but that makes sense.
Mr Man
Mr SPEED!
I’m also designing around electronics, not vice versa…
Zoom Master
Elite member
Nice
Zoom Master
Elite member
Makes sense but I designed my airplane first and then choose the electronics…..and I also was gonna use a very big motor for the plane but I never actually built it.
Mr Man
Mr SPEED!
Exact opposite of what I did 😂
Zoom Master
Elite member
Yeah
Similar threads
