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150% ft Spitfire

#5
Excellent work!

What are the specs in terms of power and weight?
I'm not sure I have the right items but I'm going to try and use this motor https://hobbyking.com/en_us/turnigy-d3542-4-1450kv-brushless-outrunner-motor.html running an 11x7 prop using this esc https://hobbyking.com/en_us/hobby-king-60a-esc-4a-sbec.html ideally I would like a lower kv motor as I like to fly slow. Will run on two 2200 3s or a 4s. I'm yet to weigh it but I will soon I will try 9gram servos to start with.
 

kdobson83

Well-known member
#8
I built a 125% Spitfire a few months ago. Yours looks MUCH better.
Here it it's next to my normal mustang for scale, before paint that is.
20180819_144130.jpg
Here's a couple after paint and 3d printed accesories.
20180902_172921.jpg
20180902_172940.jpg

I can't relate to how it flys in comparison to the regular spitfire but I can say it flys awesome. SUPER gentle and surprisingly easy. I ended up having to turn the elevator and rudder rates to about 80% with 30% expo and had to do about 150% rates on the ailerons. I didnt reinforce the spare like you did, mines built exactly like the stock spit but I added some paint stirring sticks to the middle of the spar. But that's it. Really low wing loading. It pretty much floats in the air at low speed making landing harder. Basically it's hard to flair it in while landing because it has so much lift it just keeps going.
Its got a Grand Turbo GT 2820/07 motor
http://www.headsuphobby.com/Emax-GT282007-850kv-Outrunner-Brushless-Motor_ep_160-1.html
This motor is discontinued but can still be found on sites like eBay. On a 3s 2200 with a 12x6 prop it has unlimited vertical at 75% throttle. Zero to full speed in 2 seconds. Lol

Anyway, I bet yours flys great. You look as if this isn't your first rodeo. Lol

Since yours has that AWESOME cockpit do you plan on putting a pilot in it? Like a GI Joe or something? I may have to do a clear cockpit in my next build like yours!
 
#11
I built a 125% Spitfire a few months ago. Yours looks MUCH better.
Here it it's next to my normal mustang for scale, before paint that is.
View attachment 125500
Here's a couple after paint and 3d printed accesories.
View attachment 125501
View attachment 125502

I can't relate to how it flys in comparison to the regular spitfire but I can say it flys awesome. SUPER gentle and surprisingly easy. I ended up having to turn the elevator and rudder rates to about 80% with 30% expo and had to do about 150% rates on the ailerons. I didnt reinforce the spare like you did, mines built exactly like the stock spit but I added some paint stirring sticks to the middle of the spar. But that's it. Really low wing loading. It pretty much floats in the air at low speed making landing harder. Basically it's hard to flair it in while landing because it has so much lift it just keeps going.
Its got a Grand Turbo GT 2820/07 motor
http://www.headsuphobby.com/Emax-GT282007-850kv-Outrunner-Brushless-Motor_ep_160-1.html
This motor is discontinued but can still be found on sites like eBay. On a 3s 2200 with a 12x6 prop it has unlimited vertical at 75% throttle. Zero to full speed in 2 seconds. Lol

Anyway, I bet yours flys great. You look as if this isn't your first rodeo. Lol

Since yours has that AWESOME cockpit do you plan on putting a pilot in it? Like a GI Joe or something? I may have to do a clear cockpit in my next build like yours!

I wish I had a 3D printer but I have no money.
 
#12
I built a 125% Spitfire a few months ago. Yours looks MUCH better.
Here it it's next to my normal mustang for scale, before paint that is.
View attachment 125500
Here's a couple after paint and 3d printed accesories.
View attachment 125501
View attachment 125502

I can't relate to how it flys in comparison to the regular spitfire but I can say it flys awesome. SUPER gentle and surprisingly easy. I ended up having to turn the elevator and rudder rates to about 80% with 30% expo and had to do about 150% rates on the ailerons. I didnt reinforce the spare like you did, mines built exactly like the stock spit but I added some paint stirring sticks to the middle of the spar. But that's it. Really low wing loading. It pretty much floats in the air at low speed making landing harder. Basically it's hard to flair it in while landing because it has so much lift it just keeps going.
Its got a Grand Turbo GT 2820/07 motor
http://www.headsuphobby.com/Emax-GT282007-850kv-Outrunner-Brushless-Motor_ep_160-1.html
This motor is discontinued but can still be found on sites like eBay. On a 3s 2200 with a 12x6 prop it has unlimited vertical at 75% throttle. Zero to full speed in 2 seconds. Lol

Anyway, I bet yours flys great. You look as if this isn't your first rodeo. Lol

Since yours has that AWESOME cockpit do you plan on putting a pilot in it? Like a GI Joe or something? I may have to do a clear cockpit in my next build like yours!
Is the wire in the cockpit that the harness is strapped to behind the seat your antenna?
 

kdobson83

Well-known member
#18
ok do you know what the wingspan is in mm. for 125% and if you know 150%.
My 125% spitfires wingspan is roughly 1350mm. So if you correctly upscaled yours to 150% it should be 1620mm. The original FT Spitfires wingspan is 1080mm Just so you have all the numbers. Quite a bit bigger when you look at the exact numbers. Lol
 
#19
Yes mines 1620mm it's easy take the standard size 1080mm and multiply it by what ever percentage u want. 1080 x 150% =1620. Also it's roughly 1/7 scale I think. You can do the maths backwards to figure out how big you need to print of you have a size in mind
 
#20
Got abit done yesterday when I had a chance kids keep me busy.... Got some cockpit instruments and started to fix the canopy I want to do a sliding canopy that's what the plastic rails are for hope it works. If I was to build again would change loads of little bits always the way when you build on the go withno real plan 20190303_150120.jpg 20190303_150209.jpg 20190303_150310.jpg