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Old Sep 18, 2007, 01:11 AM
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Build Log
Funjet / Ultra on Steroids (Current top speed : 182 mph)

This thread started as a build log but now evidently morphed into a hang out place for super fast Funjet and Funjet Ultra setups...So I've started to index all fast setups or useful build pictures as links here...Happy flying !!!

Confirmed Super Fast Records

Psionic001: Fastest yet: 182 mph

Details here

http://www.rcgroups.com/forums/showt...&post#16755269

http://www.rcgroups.com/forums/showt...&post#16760944

http://www.rcgroups.com/forums/showt...&post#16736946

http://www.rcgroups.com/forums/showt...&post#16736573

http://www.rcgroups.com/forums/showt...&post#16769939

http://www.rcgroups.com/forums/showt...&post#16799334

################################################## ################################################## ##

Numb_Thumb: Fastest yet: 154 mph

Details here

Funjet I

May 6th, Blistering fast Funjet on Arc 2T and 6S setup
Feb 19th, EagleTree graphs for a 154 MPH flight

Funjet II

Glassing and Reinforcement
Custom canopy hatch
Custom motor mount 1
Custom Motor Mount 2
Final Assembly

9th Maiden

Funjet III

Airframe Assembly
Motor Mount
Two part Custom Canopy
Cat walk
Maiden

Funjet powered skateboard (Pls do not attempt)

################################################## ################################################## ##

Happy Flying !!!

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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Old Sep 18, 2007, 01:12 AM
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Already thinking about reinforcements

This is my first funjet. Just by looking at the parts and the design, I can say this plane is an easy build. However I think this plane requires minor reinforcements to handle high speeds.
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Old Sep 18, 2007, 01:15 AM
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Twin Carbon tubes

The stock fiberglass tube does not extend all the way to the wing tips and also it flexes more that I wanted to flex. A custom cut carbon tube that extends all the way into fake fuel tanks at the wingtips will help spread the stress to a certain extent.

A front to back carbon tube is a must for my setup. My plan is to go from 3 cell 4 cell and then 6 cell setup, with a long can heavy motor on the back. This carbon tube will distribute the stress of the batterries and the motor evenly throughout the fuselage.
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Old Sep 18, 2007, 01:17 AM
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In case you hadn't noticed

The reason I did not extend the for-aft carbon tube all the way to the front was because

1. I don't want the carbon tube to disform/snap during a unfortunate nose down.

2. The current setup will snap off the foam in the event of a nose down crash just before the battery compart begins (and the carbon tube begins at the front). This will take away much of the impact stress or else it will be distributed throughout the plane (Guess why servo gears rip off in certain type of nose down crashes).

On a worst case scenario I'll end up with a broken nose which most probably can be fixed.
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Old Sep 18, 2007, 01:18 AM
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A little spackle goes a long way

Carbon tubes are covered and the area is re-sanded to restore the contour.
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Old Sep 18, 2007, 01:15 PM
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Getting ready for glassing

Preparation for glassing is underway. I'm using 1/2 ounce, 3/4 ounce and 2 ounce depending on the stress area and also plan to use WBPU and epoxy based resin and hardner for the fuselage.
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Old Sep 18, 2007, 01:16 PM
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Glassing going on

Top right elevon is now glassed. Left side is getting ready. Used WBPU.
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Old Sep 18, 2007, 05:18 PM
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I hate when glassing but I love it when flying a glassed plane

The pic shows glass is drying. Its a overkill to glass the entire fujet (top, bottm, sides, canopy, turtle back) because the EPP foam is better in handling everyday abuses and also I have two carbon tubes extending full length and breadth of the airframe.

May be I will use less glass on my second Funjet. Oh yes, this is my first funjet (aka experimental).

Glassing is a love hate relationship. I hate it when working with messy glassing process but I love it when flying it and showing off to other flyers
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Old Sep 19, 2007, 02:22 PM
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Bottoms done :)

Underside glassing is now complete and dry...
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Old Sep 20, 2007, 12:13 PM
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Top Glassing done

Top glassing complete and dry.

Second round of reinforcement with epoxy based resin in and around the nose and elevons are due next.
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Old Sep 20, 2007, 12:14 PM
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Oops !!!

Almost forgot to glass the stabs.....
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Old Sep 21, 2007, 11:30 AM
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Painting Prep

Next step is to start masking for painting.

The painting scheme I'm thinking of is in line with my stryker's paint scheme, not only because I like it, its different, the visibilty is awesome and I bought two big cans for stryker and and I wanted to use if off before the paint starts drying in the can
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Old Sep 24, 2007, 03:10 PM
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Masking continues....

A black color for elevons and fuel pods would go nicely against any fluroscent color on the wings and fusealge.

So I decided to mask those areas as well. I know few folks out there wondering "I put together a fun jet in 4 hours, why is this guy taking such a loooong time and overkilling it". Well, I have a reason and would like to keep it until a little after maiden.

For now, pls bear with the boring pic of naked funjet with a bit a masking tape for cover
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Old Sep 24, 2007, 03:12 PM
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Color evolving...

This is the first shot of the painted Funjet. The signature of this plane is slowly taking shape.

The masks are still on. I will draw fire scheme on the wing area just like I did for my stryker. It should look really good when completed.
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Old Sep 25, 2007, 02:26 PM
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Another shot from a different angle. The masks are still on.

Another shot from a different angle. The masks are still on.
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