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Home✈️Aircraft🚁Helicoptere-BladeOther › DIY! BladeCP Tail Fin
05-15-2006 11:21 PM  15 years ago
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CarterTG

rrNovice - Chicagoland MyPosts All  Forum  Topic

DIY! BladeCP Tail Fin
Some 15-20 crashes ago when I was still tackling the nose-in hover, the chassis needed replacing. It's not TOO difficult a job, just time-consuming.

A few crashes after that, the tail support rod broke after a hard landing. First fix, a spare carbon rod CA'd in place and no one was the wiser. Crash. Crash. Next fix, carbon rods depleted, so a piece of bamboo skewer was used. Crash. Crash. Crash. This time the base that held the rod was beyond repair.

I didn't feel like applying a repair to the same (weakened) spot and it was time to incorporate a tailfin. The part had to provide the same or more functionality, same or more rigidity, minimal weight penalty, and cost little or nothing....
CTG
BladeCP, T-Rex CDE, RealFlight DS, RealFlight G3.5
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05-15-2006 11:22 PM  15 years ago
CarterTG

rrNovice - Chicagoland MyPosts All  Forum  Topic

I sketched out a tail fin pattern on a spare sheet of styrene plastic from the hobby shop. Foam artboard should work too if you can find something thin enough but rigid enough.

Scoring the plastic along a metal-edge ruler with an x-acto knife repeatedly was enough to cut the piece out. A bodyhole reamer used in polycarbonate RC car shells was used to get the right-sized holes.

Removing portions from the middle decreases the weight and reduces obstruction to the tail blades. The last thing the BladeCP needs is more restriction to tail authority, right?

CTG
BladeCP, T-Rex CDE, RealFlight DS, RealFlight G3.5
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05-15-2006 11:22 PM  15 years ago
CarterTG

rrNovice - Chicagoland MyPosts All  Forum  Topic

The finished tail fin fits perfectly into place without any added clamps/mounts/glue. The heat sink simply presses it in place. When the heli lands to rest, the load is now better distributed between motor and tail shaft housing. There's a bit more clearance to reduce the blades getting tangled in grass.

CTG
BladeCP, T-Rex CDE, RealFlight DS, RealFlight G3.5
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05-15-2006 11:23 PM  15 years ago
CarterTG

rrNovice - Chicagoland MyPosts All  Forum  Topic

After a week's worth of flying, the tail fin has been holding up just fine. With the heatsink keeping it in place, it works a bit like the tail blade... it stays in place serving its intended function, but will give way when needed. There haven't been any crashes to stress it and test this theory. If that day comes, making a replacement won't be a big deal.

I'll eventually get around to airbrushing it a bit.

The pattern can be found in my Gallery PDF file. Enjoy!
CTG
BladeCP, T-Rex CDE, RealFlight DS, RealFlight G3.5
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05-16-2006 12:00 AM  15 years ago
Rogersresort

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Algonac MI

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CarterTG,
Simple and it works! Nice work young man!

Arnie
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05-16-2006 12:15 AM  15 years ago
yongary

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Nashua, NH

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Good job!
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05-16-2006 01:21 AM  15 years ago
nuts4rc

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Vancouver, Wa USA

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great job and thanks for the pattern it is awesome!!!Thanks Russ. This is Addictive! Blade CP AEK 7CHP and a Shogun V2 now
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05-16-2006 07:39 AM  15 years ago
drgnfly004

rrApprentice

seattle Wa

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cool im going to put one on mine. thanks change is easy, progress that's hard
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05-16-2006 01:31 PM  15 years ago
w8qz

rrVeteran

Grand Rapids, MI - USA

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Have you noticed any improvement in forward flight? I've wondered if having a fin there would provide a bit more 'coordination'. The few times I've tried forward flight, the Blade scared me with turns I wasn't expecting."The helicopter is much easier to design than the aeroplane, but is worthless when done. W. Wright"
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05-17-2006 10:09 PM  15 years ago
CarterTG

rrNovice

Chicagoland

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Have you noticed any improvement in forward flight?
I'd have to defer that to the veteran pilots, in the confined space I've been flying in, my forward flights are more like forward crawls.

No reason why it shouldn't provide some measure of help though. Tail fins on all the other helis that came before the BladeCP served as fletchers on an arrow.

Even if someone provided concrete proof this tail fin or any tail fin does nothing to help the BCP's aerodynamics, I prefer to have one as it completes the look.
CTG
BladeCP, T-Rex CDE, RealFlight DS, RealFlight G3.5
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05-18-2006 12:15 PM  15 years ago
Heli_J

rrApprentice

Kannapolis, NC - USA

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very well done!!!!

I too will try one, and im now FF, will be interesting to see if it helps!
---> Blade CP, T-Rex, MX-400, QJ-8, QJ-16 No Gass, only Electric!
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10-11-2006 07:10 AM  14 years ago
Gino CP

rrKey Veteran

Philippines

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Here's my old tail. Corrugated plastic sheet made into a fin/stand. It is tacked in place with 3M automotive trim double sided tape and held by two tiewraps. Breaks away nicely unlike CA'd. It weighs next to nothing.
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