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HelicopterScale Model RC Helicopters › Opinions on how level the heli should sit
06-07-2012 05:25 PM  5 years agoPost 1
Timtreo

rrApprentice

Warminster, PA USA

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Hi all, I am ready to put the struts and wheels on the retracts for an A109 fuse and am wondering if the helli should sit level on the ground or be tilted forward a little bit. I'm asking because I'll be using a 4 blade head and would like to do the taxiing thing. I know the four blade heads don't really react to cyclic input normally until the head speed is right below hovering. So I'm wondering if I should make the rear struts a little longer than the front to tilt the heli forward to taxi without lifting off. Any advice is appreciated. Thanks, Tim

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06-07-2012 08:44 PM  5 years agoPost 2
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

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the key to this isnt the way the machine sits on the ground, but how it hangs in the hover. tha agusta as well as many other helis has a forward mast tilt. if the heli sits level onthe ground, you will see the rotor system with a slight tilt forward. this allows the heli to haver a level attitude while in forward flight, a comfort passengers will appreciate. this results in a slight nose high attitude while its in the hover tho and if you fly a heli like an s76 or the a109 and you are coming in to land at a hliport like nyc's east 60th street heliport, you find yourself slidingit in sideways a bit so you can see your landing spot as the dash now blocks your view. anyway, this fwd mast tilt makes ground taxiing a bit easier since the disk is already tilted fwd a little. having shock absorbing struts will add to the ease as well
having the fuse sit nose low may also help taxiing but i think most would agree it probably won't look right in the name of scale

drive a rotary, fly a rotorcraft

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06-07-2012 09:33 PM  5 years agoPost 3
Timtreo

rrApprentice

Warminster, PA USA

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Hey thanks for the response Doc. I haven't had the heli frame in the fuse with the blades on yet so I didn't even relize it would be tilted forward already. Thanks for telling me that! I was careful not to use the word scale for fear of getting flamed because this project is FAR from it. I had a cheap A109 fuse but wanted an Airwolf and a new project so here's A109Wolf.

>

I don't know if I added the photo correctly, this is my first time trying it. (looks ok on the preview)
I went ahead this morning and made up some strut rod. The retracts I'm using have 2 set screws on each side to hold the 3mm rod that connects to the strut so it will be super simple to cut the rod down if it's tilted too far forward. Thanks again for the detailed response. Tim

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06-07-2012 09:39 PM  5 years agoPost 4
Timtreo

rrApprentice

Warminster, PA USA

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How do you make a picture a little bigger on here?

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06-07-2012 10:06 PM  5 years agoPost 5
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

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set y our camera on the largest size it will take and thats usually big enough, rr size things up automatically.

drive a rotary, fly a rotorcraft

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06-07-2012 11:11 PM  5 years agoPost 6
TimtreorrApprentice - Warminster, PA USA - My Posts: All  Forum  Topic

[size=large]Just trying to see if this pic is any bigger...

[img] /fastphoto/94344/gloss_putty.jpg [desc]

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06-08-2012 12:34 AM  5 years agoPost 7
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

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109 airwolf, now thats different
keep the pics comin

drive a rotary, fly a rotorcraft

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06-08-2012 02:28 AM  5 years agoPost 8
Timtreo

rrApprentice

Warminster, PA USA

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I will Doctor, thanks for not razzing me. I'm going to work on my profile with pics of my helis as I figure out how this site works a little more. Thanks again for your help.

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06-08-2012 04:24 PM  5 years agoPost 9
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

My Posts: All  Forum  Topic

drive a rotary, fly a rotorcraft

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06-28-2012 04:42 AM  5 years agoPost 10
Timtreo

rrApprentice

Warminster, PA USA

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Well I finished the silly A109 Wolf today. Got to do a couple test flights this afternoon when the wind died down and it flew great. Super stable and plenty fast. Only mishap was on the last landing (which wasn't even very hard) one the rear cheap plastic Align struts broke. No other damage because the wing kept it from tipping all the way over. The retracts were working well but now I guess it's back to the drawing board. Can anyone suggest where to get landing struts with shocks that will fit (or use) 3mm metal rod to work with my retract servos? They are these http://www.hobbypartz.com/77p-90-er...-5kg-2-pcs.html

[size=large]
PS Is there a way to organize your pictures in your gallery? Like move them into a different order from when you posted them?

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