Scary delta
- Thread starter AMMO193
- Start date
Sorry for the late response... Yeah definitely will be recorded ( once I get the trims done etc).... There's no rudders but I assume you mean the vert stabs right?
I always underhand launch at a high angle (70 degrees), give 75 percent throttle and throw up as hard as I can (usually with a good shout) by then it's usually high enough so I have plenty of time to recover the controls.
Will keep you updated!
Man I wish Flitetest can revisit this design!
Here's my final version compared to the one I showed you earlier this year 👍
Before (initial design ):
Latest modification:
My remote can be tuned for different throws for each channel and yes, sometimes I need way more pitch than roll throws.
Ah... So here's me thinking that huge cutout will help reduce drag and better airflow but may cause more harm than good
Shurik-1960
Elite member
Last edited:
Mesarc made lots of awesome models! The problem is I don't like relying too much on hot glue joints because it can peel off or deteriorate in hot weather...- This model is a real bruiser in the sky. I assemble it in 2 days. I advise you to collect and enjoy. Why do it badly, but your own...If there are excellent models?
The MX-1 is RCFoamFighters, but it's still a hot glued design. I live in Texas and high temp glue works well for me here.
FishbonesAir
Well-known member
The true test is flight. It's foam board, take it for a controlled glide test. TV 5
Fascinating, short treatise on the subject. Thank you!
telnar1236
Elite member
Because if you don't start from somewhere you'll never learn to design well. Even the best designers started with poorly thought out and assembled planes so we would never have the great designs without the steps taken leading up to them
telnar1236
Elite member
Vortex lift on this design - Quorneng was right about the slot disrupting it so the area behind the slot is stalled while the rest of the wing isn't
This probably will be less of an issue with power since the prop will blow air over the rest of the wing, but power off, watch out
This probably will be less of an issue with power since the prop will blow air over the rest of the wing, but power off, watch out
Houndpup Rc
Legendary member
What program is that you are using there?
telnar1236
Elite member
Simflow for the CFD and Paraview to generate the plots. There's a bit of barrier to entry to both these in terms of needing to understand CFD to set up the model and needing to understand aerodynamics to know what you're looking at. They're very capable though, and simflow is free so long as you're ok with some limits which I am ok with.
If you're interested in getting into analyzing your planes more scientifically before flying them, I'd recommend XFLR5. It's less capable (it couldn't analyze the slot on this design for example) but it's easier to use and has better documentation which also includes explanations of the relevant aerodynamic concepts
Piotrsko
Legendary member
Quit using crafting hot glue low temp sticks, spend the bit more money and get high temp sticks. Mine take a full 20 minutes to start melting in my ryobi gun but they laugh at being on black foamboard in the desert sun
Bad news folks; Disaster!
Way out of trim and way off balance, the way it bobbed up and down like a Chinese dragon....
Managed to land it safely, didn't bother trying again... got too disorientated after the maiden flight. I guess there's a reason they don't use props in slots in actual planes, it almost ruins the integrity and gets really bendy around that area. Oh well... Back to the drawing board, thinking about filling the slot and extending the nose to make some kind of edf jet like so:
Way out of trim and way off balance, the way it bobbed up and down like a Chinese dragon....
Managed to land it safely, didn't bother trying again... got too disorientated after the maiden flight. I guess there's a reason they don't use props in slots in actual planes, it almost ruins the integrity and gets really bendy around that area. Oh well... Back to the drawing board, thinking about filling the slot and extending the nose to make some kind of edf jet like so:
Shurik-1960
Elite member
You have no experience making models, you only have the desire to create.... And you can't create yourself either, so you're asking for help. It might be worth looking at similar models on the Internet.Why would I advise you to move the engine closer to the nose if you don't understand why.. https://www.rcgroups.com/forums/showthread.php?1333878-**-Pics-with-links-to-600-plans-** - I love this site and have repeated many models. I make models with improvements based on my extensive experience.
Mr Man
Mr SPEED!
I wouldn't say that...
FT Speedwing control throws
Good day folks, Just fancied sharing my take on a very, very old FT design originally made by Chad Kapper himself. Lo and behold the ancient FT Speedwing (100mph for under 100bucks challenge). So as you can see some modifications... Scaled down by 5% (wingspan 25.5 inch instead of...
forum.flitetest.com
Piotrsko
Legendary member
Dunno about tail heavy, but it definitely was stalling. If its bobbling, it is decently stable, typically one wingtip stalls before the other and it goes into an accelerated roll to inverted faster than an eye blink. Usually doesnt make back to flite as the ground interrupts the flight
No experience? I've made lots of planes and I've made and modified many of the plans I've found on the Internet, yes I've made lots of mistakes on the way and I've learned very well from those mistakes... Try to be more constructive and polite next time
