Viper1990's Scratch Build Planes: 2009

Sunday, December 20, 2009

F-35 profile

This is a relatively simple to build plane. Because it is a profile plane. Meaning.. its not a full scale body. Just a 3-plan view put together to look 3-dimensional but it's not. It's advantages is that it could be built quickly at a low cost. Around 90% of the total cost would on the electronics.

I've decided to build one F-35 and paint it hello kitty scheme! Its extreamly light weight at the end of the built. I've use 6mm depron sheets to built the entire plane.

Powered by a 350watts motor, it have enough thrust to do vertical climbs and mild aerobactics. Don't be too rough on this lady here or she'll break in the air! (i've seen one of my friend's plane got destoryed mid air while plunging down to earth at high speeds)

The best part of this plane is, if it breaks, just build another in no time at all! The electronics could be transferred over quickly.

Here are somepictures of the F-35 profile version.

Specifications
Length: 1m
Wingspan: 0.75m
Weight: 450grams
Power: 350Watts

Electronics
Motor: Align 3550kv brushless motor
ESC: 40Amp hobbywing
Battery: 3s 2200Mah lipo
Servos: 2x Hxt900 servos (1.2kg torque)
Rx: 6channel futaba rx

A simple profile built using 6mm depron sheets

After the paint scheme

Hello kitty paint scheme!

Heres me with my F-35

And of course my friends who flies other types of profile jets like the F-22, Mig29, Su-35

Mirage2000

Here is one of my favourite jet planes, Not only it is easy to build, it is fun to fly! In a sense, it's able to handle slow speeds (25-40km/h) and higher speeds above 60km/h. No worries about flying a delta wing plane because it's able to handle stalls very well , Meaning if the plane is about to stall to it's doom, just throttle up and it'll fly away! This plane here is partially made of white styrofoam and blue foam for the wings.

White foam is very light yet brittle. But, once again who said plane is built to crash? Don't crash it and you need not worry about the brittle material! With the light weight structure, the plane is able to perform loops/barrel rolls...etc with ease.

Be sure to catch the built thread i uploaded here in daddyhobby! http://www.daddyhobby.com/forum/showthread.php?t=43292&highlight=mirage2000

Specifications
Length: 1.2m
Wingspan: 0.7m
Weight: 800grams
Power: 350Watts

Electronics
Motor: Turningy 28size 3900kv motor fitted in 68mm wemotec mini fan
ESC: 40Amp hobbywing
Battery: 3s 2200Mah lipo
Servos: 2x Hxt900 servos (1.2kg torque)
Rx: 6channel futaba rx

Assembling the parts together

Whitefoam body, Blue foam wings

Brought the plane down for a test flight
(Remember to paint the plane to look good and attractive!)

Cleared for take off!

And there she goes!

1.8m multipurpose glider

I build this glider for 2 reasons.

1) Bomb drop (built with a radio controlled switch operated bomb bay )
2) Aerial view (Can accomodate a camera up to 150grams to be fixed on the plane)

Thus ,its multipurpose... Oh, and it can also do stunts like loops and rolls. But not really recommended because it is a glider. This plane can catch thermals and stay up there for quite sometime. The glide ratio is great (40:1) when the throttle is cut off. The plane takes almost forever to get down back on land! It is light weight, only 800grams , the wingloading is at 8oz/sq ft. Making it a very light floater. gentle and easy to fly. Very suitable for starters in rc flying.

Catch the aerial video right below the page!

Specifications
Length: 0.9m
Wingspan: 1.7m
Weight: 800grams
Power: 300Watts

Electronics
Motor: Turningy 36size 1700kv motor
ESC: 40Amp hobbywing
Battery: 3s 2200Mah lipo
Servos: 3x Hxt900 servos (1.2kg torque)
Rx: 6channel futaba rx

Here are some aerial videos over my neighbourhood!

Skybox

I am in collaboration with the aeronautical students providing knowledge in building, aerodynamic calculations and electrical wiring. (oh and flying the plane too!) Project started on March 2008 and ended on January 2009. This is one of the most massive plane i ever flown it's power reaches 2500watts producing nearly 8kg of thrust. Massive ammont of power enough to pull this plane weighing 11kg , running 30meters down the runway to lift off!

This project is in par with the global hawk's project

The team and I madiened this plane at woodlands flying field. We've choose this place because of it's large flying area as well as the long runway.

Official Build Thread on Daddyhobby here:
http://www.daddyhobby.com/forum/showthread.php?t=39402&highlight=skybox

Be sure to catch the video at the bottom of the page.

Specifications
Length: 1.7m
Wingspan: 3m
Weight: ~11kg
Power: 2500Watts

Electronics
Motor: GS outrunner 320kv
ESC: 85Amps castle creation pheonix Esc
Battery: 9s(22volts) voltron 4600mAh lipo
Servos: 5x heavy duty multiplex servos (4kg torque)
Rx: 9channel futaba rx

All the pictures are taken in december 2008

Me on the left and co pilot on the right

Preperation before taking off

This is taken with the global hawk (both teams went down to fly that day)

Setting up the plane at workshop

Plane still at production stage,wings can be removed for easy transportation

And here is the video of skybox flying!

Global Hawk 120mm EDF

I'm working with a few students in collaboration to build one of this giant beauty, The global hawk. Project started on March 2008 and ended on January 2009. Wingspan at 5meters weighing at 11kg, It have a powerful powerplant to get it flying.

This project is in par with the Skybox's project

The material used for the plane is mainly depron and bluefoam.The fuse is depron wrapped around a plywood structure while the wing is airfoiled out using whitefoam and glassed it using fibrecloth.

The motor in the 120mm edf can deliver 2200watts of power producing 5kg of thrust. Enough to lift the giant plane up in the sky.

Be sure to catch the video at the bottom of the page!

Official Build Thread on Daddyhobby here:http://www.daddyhobby.com/forum/showthread.php?t=39402&highlight=skybox

Specifications
Length: 1.5m
Wingspan: 5m
Weight: 10kg
Power: 2200Watts

Electronics
Motor: GS inrunner 1030KV
ESC: 100Amp hobbywing
Battery: Thunder Power 5000mAh 6s
Servos: 5x heavy duty multiplex servos (4kg torque)
Rx: 9channel futaba rx

All these pictures are taken in november 2008

Plane still in production stage #2

Plane still in production stage #1

The students i'm working with

Ready to assemble the plane

This is me compared to the global hawk

In my early days of scratch building

Time flies when you're scratch building!...., when i look back at them, they are my milestones in rc planes. They look crappy but they are the strong foundation that helped me get started in scratch building and rc flying. I've learn building and flying at the same time so the standards in this 2 areas are always on par with each other.

Enjoy the pictures of my very first attemps in scratch building planes!

Mirage2000 first attempt