Help! Need help in designs

Piotrsko

Master member
Or you can ignore all of us, AND do your own thing, BUT you wont know why something works or doesn't. Some of my best early planes flew magically*, but back then it wasn't repeatable or predictable.or even repairable.

* sorry it's a dyslexic day
 

JasonK

Participation Award Recipient
I will. here is a video https://drive.google.com/file/d/1Zv10nNTQRtpc15RPEzVT6ifo0KlNtypA/view?usp=sharing but I will later get a picture. btw, I tried screwing in dowels, and gluing into the foam. i do not know how it works yet. will try.
that looks like it should hold on, you have packing tape over the firewall on to that foam 'tube'? (if not, probably want to add that)
also, being on the ground like this, your going to get more jerk, so it will need to be stronger then just a plane.
 

quorneng

Master member
FlyerinStyle
If you have ambitions to design your own plane, or anything else come to that, you are going to have to understand the forces that can be generated and how to contain them.
There are three way to do this.
1. Learn all about stress analysis and the strength of materials and work from first principles. It will take many years to learn.
2. Engage in 'trial and error' experimentation to find out what works and what doesn't. Ok for tackling a specific problem but it can take a long time to prove everything by experimentation.
3. The simplest is to copy what had been done before. It is in fact what most designers do most of the time, however you do need to do research to find out what has been done and how successful it was.

This does rather explain the recommendation to "build something first and then see if you can improve it" as a way to begin the process to acquire experience. Do remember that what is 'better' to you may not be so to others.

As an example.
My first modern RC plane was a foam ready to fly trainer. Once I had flown it quite a bit I judged I could make it fly better & longer so I first altered little things then built a new lighter wing. After 2+ years of this process very little of the original remains but both its performance and duration are greatly improved atleast to my way of thinking.
I had not designed anything from scratch but I had gained sufficient understanding of what worked and what didn't to enable me to build and successfully fly a similar style plane that was bigger, heavier and significantly more powerful.
I now have over 20 planes all very different but each is a 'progression' from either the knowledge gained or has features identified from other designs.
I hope this helps.
 

FlyerInStyle

Elite member
FlyerinStyle
If you have ambitions to design your own plane, or anything else come to that, you are going to have to understand the forces that can be generated and how to contain them.
There are three way to do this.
1. Learn all about stress analysis and the strength of materials and work from first principles. It will take many years to learn.
2. Engage in 'trial and error' experimentation to find out what works and what doesn't. Ok for tackling a specific problem but it can take a long time to prove everything by experimentation.
3. The simplest is to copy what had been done before. It is in fact what most designers do most of the time, however you do need to do research to find out what has been done and how successful it was.

This does rather explain the recommendation to "build something first and then see if you can improve it" as a way to begin the process to acquire experience. Do remember that what is 'better' to you may not be so to others.

As an example.
My first modern RC plane was a foam ready to fly trainer. Once I had flown it quite a bit I judged I could make it fly better & longer so I first altered little things then built a new lighter wing. After 2+ years of this process very little of the original remains but both its performance and duration are greatly improved atleast to my way of thinking.
I had not designed anything from scratch but I had gained sufficient understanding of what worked and what didn't to enable me to build and successfully fly a similar style plane that was bigger, heavier and significantly more powerful.
I now have over 20 planes all very different but each is a 'progression' from either the knowledge gained or has features identified from other designs.
I hope this helps.
Thanks for your help, I am going to try the third option, but I am doing good with trial and error for now.
 
3. The simplest is to copy what has been done before. It is in fact what most designers do most of the time, however you do need to do research to find out what has been done and how successful it was.
And that hardly feels like "doing research"! If you're really interested in the hobby then you're really interested in reading about it, watching videos about it, collecting photos of plane designs, reading the forum...
Instead of being smarter than everybody else you should be interested in reviewing how others are doing it successfully. Then you learned a technique, now you own it. Instead of experiencing failure after failure because you're doing it wrong.

Immature poets imitate; mature poets steal; bad poets deface what they take, and good poets make it into something better, or at least something different.

And if I might add: Dumb poets try to reinvent it all themselves without any idea idea what's been done before them.
 

FlyerInStyle

Elite member
And that hardly feels like "doing research"! If you're really interested in the hobby then you're really interested in reading about it, watching videos about it, collecting photos of plane designs, reading the forum...
Instead of being smarter than everybody else you should be interested in reviewing how others are doing it successfully. Then you learned a technique, now you own it. Instead of experiencing failure after failure because you're doing it wrong.

Immature poets imitate; mature poets steal; bad poets deface what they take, and good poets make it into something better, or at least something different.

And if I might add: Dumb poets try to reinvent it all themselves without any idea idea what's been done before them.
I have been sitting for like 5 hours a day doing research 5 times a week for the last 6 months. i think I know enough to start experimenting.
 
Then you should have been flying months ago. We're here to help if you want to respect and listen to and follow the advice offered. This forum can be the most helpful and supportive place I know, but you'll get some kickback when you ask questions and repeatedly turn down the best advice offered. We're trying to get you flying. (y)
 

FlyerInStyle

Elite member
I have been flying, and then crashing, coming back, researching, building flying crashing instantly. That is my cycle. I think, with all the advice I recently got, I am good to go for flying, crashing, and flying again, instead of building ans researching.
 

Phin G

Elite member
Then you should have been flying months ago. We're here to help if you want to respect and listen to and follow the advice offered. This forum can be the most helpful and supportive place I know, but you'll get some kickback when you ask questions and repeatedly turn down the best advice offered. We're trying to get you flying. (y)
Oof