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HomeAircraftHelicopterMiniature Aircraft Whiplash & Fury 55 › Whiplash landing gear.
08-08-2012 01:39 PM  6 years agoPost 1
Donnie Baker

rrNovice

Indianapolis

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Is anybody else concerned about the way the individual landing gear struts are attached to the frames? I've been known to occasionally break a landing gear and man, I'd hate to need to replace the frames when that happens.

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08-08-2012 03:17 PM  6 years agoPost 2
unclejane

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santa fe, NM, USA

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I agree that they're too strong as-is, this one of the very few weaknesses (ironically) of the Whippy design. Fortunately I haven't had to test mine yet tho lol....

OTOH, it's a real task to design an aircraft for crashing rather than flying, so it's hard to fault MA and the design team for this.

There are threads here and there that show various ways to weaken the joints so that they don't ruin the frames. I've thought about going with plastic bolts and shaving off the little fitting nubs a bit, but I've not gotten around to it.

And usually when I crash it's so extremely violent that I destroy the entire machine anyway and I just budget in the occasional rekit from the get-go. So this is kind of the least of my worries lol...

LS

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08-09-2012 02:10 AM  6 years agoPost 3
mforester

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Los Angeles

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Would it be possible to fit a set of Tuff-Struts instead?

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08-09-2012 06:36 AM  6 years agoPost 4
Mike Fortin

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USA

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Yes, Tuff-Struts are an option and some are using them.

Gives the Whippy a new Retro look.

Have Rotors, Will Fly!

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08-09-2012 01:39 PM  6 years agoPost 5
Doug Darby

rrVeteran

Dallas, Texas

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+1
Mike is correct in that the Tuff Struts can be made to fit. I have flown them for about 50 flights now including one significant crash. The frames were completely UNDAMAGED in the crash. Blades, main shaft, TT, tail boom, TT gear (one) and the Tuff Strutts were all the damages.
I was suprised that the main gear was fine and the boom supports were also undamaged.
Overall a very stout Heli.

doug

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08-10-2012 01:27 AM  6 years agoPost 6
DVS11

rrNovice

Valencia, CA USA

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Doug,
How about some pictures of your whip/tuff strut mod? Thanks in advance

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08-10-2012 12:17 PM  6 years agoPost 7
FLYERCLD

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Proctor, Arkansas

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I second that... Doug how about some pic so all can see.

Old pilots never die they just fade away

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08-10-2012 12:59 PM  6 years agoPost 8
puma1824

rrVeteran

Maryland, USA

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If you opt to use Tuff Strut II skids (or other) it's pretty simple.

1. Remove original struts
2. Replace M4x16 bolts with shorter M4 bolts
3. Use bottom plate for template and drill skids of your choice
4. Replace the 4 M3x6 screws with longer M3 screws to go through skids to bottom plate / cross bracket
5. Optionally use some washers between skids and bottom plate

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08-10-2012 03:05 PM  6 years agoPost 9
Kinger

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Granville, OH

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That looks pretty darn awesome Thanks for sharing the pics.

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08-10-2012 08:32 PM  6 years agoPost 10
mforester

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Los Angeles

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Yeah, I think that looks really nice. Thanks for the detailed pics and info, I may go with that as I have a few spare sets of TuffStruts laying around.

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08-11-2012 12:09 AM  6 years agoPost 11
gotnoclue

rrApprentice

sydney

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That looks awesome.
How is the tail clearance with the setup?

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08-11-2012 12:31 AM  6 years agoPost 12
Mike Fortin

rrElite Veteran

USA

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It will raise the tail roughly an inch or so.

Have Rotors, Will Fly!

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08-14-2012 05:28 PM  6 years agoPost 13
FenderBean

rrElite Veteran

Fort Hood TX

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after building mine last night, I really like the gear design. Are you guys worried the bolts will just pull through the plastice gear? You can always open the holes and use a large washer.

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08-14-2012 05:59 PM  6 years agoPost 14
Donnie Baker

rrNovice

Indianapolis

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I was worried the tabs may break off the frame requiring the frames to be replaced. I searched around a little since my original post and found this has happened to people already.

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08-14-2012 06:09 PM  6 years agoPost 15
FenderBean

rrElite Veteran

Fort Hood TX

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Interesting, because even with that tab broke the gear should hold up. Easy fix would be to just put a 3m bolt in the same spot as the tab

just getting info since I just got one of these. Thanks

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08-14-2012 06:33 PM  6 years agoPost 16
FLYERCLD

rrVeteran

Proctor, Arkansas

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Well, once you fly your new Whippy, you'll know if you want to go with the mod or not. My first little crash I broke the right front strut, no damage to the frame, Just lucky.

Charles

Old pilots never die they just fade away

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08-15-2012 12:35 AM  6 years agoPost 17
Bill Clontz

rrApprentice

usa

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I have had alot of trouble with the landing gear 4mm bolts snapping off from the use of the pull start. then you have to use a bolt extractor to get what is left out of the aluminum spacer...

So be carefull with the stress of pull starting a gasser version. I now lift the heli up and pull start it with the heli up against my shins....

"Need More Parts"

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08-15-2012 01:21 AM  6 years agoPost 18
Carey Shurley

rrElite Veteran

Orlando, FL - USA

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the main reason I don't use pull starters if I can avoid it

it puts a lot of unnatural loads on the chassis especially when the motors are new

An exception is the starter on the CY46. Its a spring within a spring so when you pull the starter cord it just winds up a spring. When it gets tight it release and spins the motor. It doesn't put much side load on the chassis

Proprietor - Gas Powered Helicopters

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08-15-2012 03:00 AM  6 years agoPost 19
philip 01

rrElite Veteran

ft worth

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tuff strut 2's
with the center section (81mm) cut out.

Watch at Vimeo

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08-15-2012 11:48 AM  6 years agoPost 20
Bill Clontz

rrApprentice

usa

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seems counter productive doesnt it? Dont use the pull starter on an engine with a built in pull starter!? LOL

I was thinking of trying to figure out a way to put a puh motor in this wihippy and save another pound - that would be less than 12 pounds full of fuel - WOW!

"Need More Parts"

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