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What's the scoop on Rotor Droop??

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  • Member since
    February 2003
  • From: USA
What's the scoop on Rotor Droop??
Posted by senojrn on Saturday, December 20, 2003 6:38 PM
I am building a Monogram 1/48 Mil-24 Hind and wanted to know how to make the rotors droop at rest. I have heard of using a hairdryer and/or hot water soak....but....
1) WHAT IS THE BEST METHOD?
2) When using the hairdryer--do you have to weight the ends, or just heat then bend by hand???
3) Also, I have an already built-up 1/48 UH-60 Blackhawk and wondered can you droop previously painted rotors???

  • Member since
    July 2003
  • From: Piedmont Triad, NC (USA)
Posted by oldhooker on Saturday, December 20, 2003 9:59 PM
Howdy,

Here's the method I experimented with for making the rotor blades droop and reducing the chance of accidental breakage by almost 100%.


I eventually made the Brace adjustable on the pedistal, so after adding weights to the rotor tips, with the weights resting on the desk top, I lift the Brace until the proper droop is achieved and tighten the wingnut... then apply the hot air. This way, I don't have to worry about bending them TOO much, and multible blades can be drooped exactly the same.

Painting isn't affected, but you must control the concentration of heat; waving the blow dryer back & forth along the length of the blade, instead of keeping it on a single point.

Tally Ho
Frank

  • Member since
    November 2005
Posted by Anonymous on Saturday, December 20, 2003 10:04 PM
If it is only a slight droop, I simply run the rotor blade across a sharp edge (Table edge, etc.)while bending it, a few runs normally will do for a slight droop.
I used this technique for 1/72 Helicopters.

Never tried a droop like the one that exists on a Hind, the Hasegawa 1/72 Kits I build were already pre-drooped.
  • Member since
    November 2005
Posted by Anonymous on Saturday, December 20, 2003 11:19 PM
I just use a round hobby knife handle and while pushing down on the handle, pull the rotor through and you will get a droop.
the amount of pressure exerted controls the amount of droop.
If you over do it, flip the rotor over and do the same again and it will remove the droop.
  • Member since
    November 2005
Posted by Anonymous on Saturday, January 17, 2004 2:34 AM
I did a fully detailed UH-60L in 1/100th scale quite a few years ago.
I had to completely scratch build the individual crew seats and the pilots cockpit in that scale using very small wires and rods .The exterior antennae and electronics work was also rebuilt,as the kit peices were too garish and out of scale.
To get the rotor droop on blades that smal, that I had already painted decaled and sealed(woops..poor planning) I needed to be able to exercise precise control, with both hands,so I got a kettle of water boiling. Then holding the blades high enough to not hurt myself, I let the steam soften the plastic juuust enough to effect a controlled droop using some pressure from my fingers.
Then I used that same water to make myself some coffee to calm my nerves when I dropped a blade on the hot element.
  • Member since
    November 2005
AIRWOLF and BLUE THUNDER detail sets
Posted by Anonymous on Sunday, January 18, 2004 2:28 AM
I ran into papa-echo(Troy) here at a local hobby shop a week ago, and he highly recommended that I go these Helo forums for my questions.
Just for the record, he had nothing but really high praise for all the fine people here and the wealth of knowledge each one brings to the table.
My questions were concerning where I may be able to find some aftermarket detail sets for both the Blue Thunder and the Airwolf kits, whether interior or exterior or both.
Even if none are available does anyone know what " close enough to accurate" accessories i could use, just to effect more realistic detail.
Especially for the Airwolf kit..those of you who have the kit can maybe tell me a good product to use to fill and rescribe those panel lines that would put the full scale at panels about 3-4 inches apart and rivets as big as ..well..can I say it here....no?... how about walnuts?..
By the way Papa- echo,as far as the shameless plug..just give the kick back and any checks made payable to me, by way of Bob's shop there in lynnwood.Laugh [(-D]
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