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« on: April 10, 2014, 11:24:35 PM »
K K Iyer
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Why should Bolts have all the fun*?
*funjets, that is.

What we need is a Fanjet

I know what i want to build:

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5th Sweepstakes - Fanjet - K K Iyer
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« Reply #1 on: April 10, 2014, 11:28:31 PM »
K K Iyer
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Have a fan,
A clean slate,
ONE sheet of 8mm biofoam,
A head full of imagined drawings and dimensions
What more does one need?

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« Reply #2 on: April 10, 2014, 11:32:08 PM »
sundaram
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Iyer Sir,  Thumbs Up

what came to my mind immediately was this and discussion on similar thought with one of my RC friend from jamshedpur to make a RC fan jet trainer with this.  Grin

https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-frc3/t1.0-9/10012496_736094256425141_7018466187840967574_n.jpg
5th Sweepstakes - Fanjet - K K Iyer
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5th Sweepstakes - Fanjet - K K Iyer


While posting this I saw that you had already updated your next post. Nevertheless will be closely following.  Clap Clap
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« Reply #3 on: April 10, 2014, 11:34:52 PM »
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I spy some DT 700 motors there................
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« Reply #4 on: April 11, 2014, 12:06:36 AM »
K K Iyer
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Er, youneed calculations.
Since payload (EDF, battery, esc, 2 servos, trike) weigh 220gms,
And 40"x20" 8mm biofoam weighs 160gms, or 0.2 gms/sqin,
And know from experience that total material used will be 4-5 times the wing area,
And not wanting to exceed 10oz/sqft as my flat plate Spitfire is fast enough at 330gms, 7oz/sqft,
And for correct scale a 33" span needed a 6" root and 4" tip, 5" avg, 165 sqin,
And at estimated gross of 380gms or 13oz, it would have exceeded 12oz/sqft,
Cheated a bit and decided on 7" root, 5" tip,
To be within 10oz/sqft loading.

General dimensions based on Paul Willenborg drawing of Cox powered Fantrainer (maybe over 20 years old) downloaded from outerzone.co.uk.

No plan, no drawing. But Have Gun, Will Travel

Wish me luck.

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« Reply #5 on: April 11, 2014, 12:09:10 AM »
K K Iyer
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Pics so far...

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« Reply #6 on: April 11, 2014, 12:13:23 AM »
K K Iyer
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I spy some DT 700 motors there................

Eagled eyed at bleary eyes hour!
One is an 850 though...
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« Reply #7 on: April 11, 2014, 06:42:52 AM »
sanjayrai55
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Shaping up well

And who says Bolts have all the fun  ROFL Join us  Cheesy Cheesy
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« Reply #8 on: April 11, 2014, 08:53:06 PM »
K K Iyer
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The problem with scratch builds, especially without plans,
Is that you think of something new at each stage.
Entire day today went in figuring out and fabricating the cockpit canopy.
Since it is only the front one, will have to spend another day on rear cockpit...

...and then if pilots are needed...

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Re: 5th Sweepstakes - Fanjet - K K Iyer
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« Reply #9 on: April 11, 2014, 11:19:44 PM »
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Shaping up pretty well Sir, what glue you are using for this build ?
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« Reply #10 on: April 12, 2014, 09:42:50 AM »
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Re:

K k iyer sir .... Great going ....
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« Reply #11 on: April 12, 2014, 01:10:58 PM »
K K Iyer
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Cockpit extended to accomodate co-pilot.
Bulkhead hollowed out so that rear pilot can see forward.
Don't even try to glue the canopy in one shot.
Tape one edge first and ensure plastic aligns with the opposite side when folded over.

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Re: 5th Sweepstakes - Fanjet - K K Iyer
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« Reply #12 on: April 15, 2014, 11:14:35 PM »
K K Iyer
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Fanjet temporarily on backburner,
Due to repairing Ahmed's crashed Corsair.
That geared 370 brushed motor sounds terrible.
After all these brushless motors we've got used to.

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« Reply #13 on: January 06, 2017, 07:59:01 PM »
K K Iyer
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Fanjet temporarily on backburner,
Due to repairing Ahmed's crashed Corsair.
That geared 370 brushed motor sounds terrible.
After all these brushless motors we've got used to.

How time flies!
That Corsair got fixed and went on another thread somewhere in RCI.
BUT
Fanjet on backburner for nearly 3 years!
Better do something before Admin bans members who start builds, then never complete them!

Was looking at my drawing room / junkyard (pics 1&2)
And found this (pic 3)
Wonder where the EDF is.  Bang Head
Used to have two (unused so far)

If only I had sanjayrai55's zeal and organising skills  Grin

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« Reply #14 on: January 07, 2017, 06:04:46 AM »
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Don't wake a Tiger until you've factored the teeth



Why me  Huh? Huh?
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