What's the Difference  
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What's the Difference - 7/4/2007 6:58:51 AM   
FlyingFish



Posts: 566
Joined: 10/24/2002
From: Las Vegas, NV, USA
Status: offline 		I noticed that LHM has two size main blades for the corona. The blades used for the Corona 120 are the S2 13x0. but what are the Blades S2 10x5 used for? are they for the corona 117 gas powered Heli? Will they work on the Corona 120, if not please explain why.

< Message edited by FlyingFish -- 7/4/2007 6:59:22 AM >
       Post #: 1

RE: What's the Difference - 7/4/2007 3:09:48 PM   
ViperRR


 

Posts: 87
Joined: 2/23/2006
From: Charlotte, NC, USA
Status: offline 		The 10x5's are for the gassers.

(in reply to FlyingFish)
       Post #: 2

RE: What's the Difference - 7/5/2007 4:41:03 AM   
Cambo



Posts: 1516
Joined: 6/20/2005
From: Phoenix, AZ, USA
Status: offline 		FlyingFish

The 10-5's are for the 117. If you are using lipos many people use these blades to lower the headspeed without sacraficing so much "climb authority" with a super low pitch on the normal corona blades.

(in reply to ViperRR)
       Post #: 3

RE: What's the Difference - 7/5/2007 5:01:55 PM   
FlyingFish



Posts: 566
Joined: 10/24/2002
From: Las Vegas, NV, USA
Status: offline 		So can I use the S2 10x5 blades on my corona 120 ? I have a brushless motor with lipo batteries, What kind of performance change can I expect if I use the 10x5 in comparison with the 13x0 ?

P.S. is the 10x5 a shorter blade with a more positive pitch, and the 13x0 a longer blade with less pitch ???? is that how it goes with these blades?

< Message edited by FlyingFish -- 7/5/2007 5:02:22 PM >

(in reply to Cambo)
       Post #: 4

RE: What's the Difference - 7/7/2007 10:36:02 PM   
Cambo



Posts: 1516
Joined: 6/20/2005
From: Phoenix, AZ, USA
Status: offline 		Yes, and you will be able to use them without 2-3 dot blade grips. 4-5 dots grips will be better

(in reply to FlyingFish)
       Post #: 5

RE: What's the Difference - 7/8/2007 6:15:42 PM   
FlyingFish



Posts: 566
Joined: 10/24/2002
From: Las Vegas, NV, USA
Status: offline 		Thanks Cambo, I will do some experimenting with the S2 10x5 blades, but I'm also working on another project that may take a couple of months of testing and development, 13x0 Aluminum Blades for the Corona 120 If it works out, I'll post it up here, but it will be a while from now.

< Message edited by FlyingFish -- 7/8/2007 6:16:41 PM >

(in reply to Cambo)
       Post #: 6

RE: What's the Difference - 7/20/2007 3:40:37 PM   
cyclicoverload



Posts: 308
Joined: 12/15/2006
From: Salt Lake City, UT, USA
Status: offline 		If you fly at an AMA site thay wont let you use alum. blades, as thay are banned for model use.

_____________________________

Contributing Editor

(in reply to FlyingFish)
       Post #: 7

RE: What's the Difference - 7/23/2007 5:12:28 PM   
Cambo



Posts: 1516
Joined: 6/20/2005
From: Phoenix, AZ, USA
Status: offline 		I think you will have some trouble flyingflish as aluminum is not as flexable as plastic, fiberglass, or carbon fiber. Remember, the aluminim blades couldn't be to much heavier than the stock blades as the head mite not be able to handle it!

(in reply to cyclicoverload)
       Post #: 8

RE: What's the Difference - 7/26/2007 4:58:06 PM   
FlyingFish



Posts: 566
Joined: 10/24/2002
From: Las Vegas, NV, USA
Status: offline 		Well We will find out what happens sooner or later, this is all experimental, the aluminum is thin and flexible, and I dont fly at RC club feilds so I'll use the aluminum blades whenever I want, But if they do work, I'm going to store them away as an emergency pair in case blades are no longer available in the future, not for everyday use. my only concern is that maybe having aluminum blades whirling around may cause glitching in the radio, but we will see, I still have a few weeks to go before I'm done with them, but so far their comming out pretty good.

(in reply to Cambo)
       Post #: 9

RE: What's the Difference - 7/26/2007 7:40:40 PM   
Cambo



Posts: 1516
Joined: 6/20/2005
From: Phoenix, AZ, USA
Status: offline 		If you ever need blades PM me, i believe i have 5. 4 blacks, one white.

(in reply to FlyingFish)
       Post #: 10

RE: What's the Difference - 7/26/2007 9:00:51 PM   
ViperRR


 

Posts: 87
Joined: 2/23/2006
From: Charlotte, NC, USA
Status: offline 		I'm looking for 120 13x0 plastic blades. If that's what you have Cambo, I'll take them. Are they new or used (dinged up a bit)?
I'm out of town till Sunday (7/29). PM me to reserve them. Thanks!
Vipe

(in reply to Cambo)
       Post #: 11

RE: What's the Difference - 7/26/2007 9:38:53 PM   
FlyingFish



Posts: 566
Joined: 10/24/2002
From: Las Vegas, NV, USA
Status: offline 		Thanks for the offer cambo, but if viper wants them, that's okay, I have several spare blades black & White, infact here's a list of my spare parts inventory sheet that I have and are NOT FOR SALE! See list below, but my point about the aluminum blades is that one day (soon from what hear), all the corona stock parts will dry up, leaving us with no more replacement parts.

SPARE PARTS INVENTORY LIST

1) New complete tail boom Section
Tail Rotor Blades / Control horn bell crank / Tailrotor pitch push-pull wire / TR Gear box / Bearings / Hollow geared shaft
Spider link / Tail bearing collar / Front Crown gear / Nylon bearings / Tail drive wire / Tail rotor Hub / Front TR Collar

(1) USED Complete Rotor Head
Complete swash plate w/bearings
All links
Paddles
Blade mount block
mainshaft

(1) New Front Pinion Gear (on Tail boom, front crown gear)
(1) New Tail Fin (Green)
(4) New Tail Rotor Gear Box
(6) New Blades 13x0 (2 white Pairs / 1 Black Pair)
(2) New Blades 10x5 (1 white pair)
(3) New Purple Tail Booms (Long)
(1) New Main Rotor spur Gear (main gear driven by motor pinion)
(2) New Main Rotor Shafts
(2) New TR Push-Pull Ritch Rod
(2) New Mixing Arm / SP Pushrod Links
(2) New Hollow TR Shaft w/Gear
(4) New (2 Pair) Main Rotor BLOCK BEARINGS #80275
(1) New Electric motor Mount
(4) New Main Rotor Z link
(1) New Set of Tail rotor Blades (Pink)
(2) New Mixing Arm
(1) New TR Bell crank
(1) New Swash Plate Race Ring
(1) New Swash Plate Outer Race
(1) New Swash Plate Inner Race
(1) New Set of Swash Plate Bearings (16 bearings)
(1) New Tail bearing #20360
(2) New Crown Gears (for main shaft to drive tail wire)
(2) New 2 Dot Blade grips
(1) New Spider link (For tail rotor pitch control)
(2) Used 9 tooth motor pinion gear
(2) Used Main Rotor Spur Gears (main gear driven by motor pinion)
(5) Used 6 Dot Blade grips
(1) Used 4 Dot Blade grip
(1) Used set of tail rotor blades (Black)
(1) Used Blade (White)
(2) Used TR Control rods (for Tail rotor from servo)
(1) Used Tail Fin (White)
(1) Used PurpleTail Boom
(1) Used Tail Drive Wire w/gear
(1) Used Main shaft support block with bell crank (w/servo links)
(1) Used Lower Mainshaft support block (w/ Bearings)
(2) Used servo control rod links w/clevices
(1) Used Tail Bearing Collar (w/screws)
(3) Used nylon bearings (inside tailboom for drive wire)
(1) Used Tailrotor shaft (w/red 45 degree gear)
(1) Used Tail boom support block
(1) Used Body mounting hardware kit


< Message edited by FlyingFish -- 7/26/2007 9:40:05 PM >

(in reply to Cambo)
       Post #: 12

RE: What's the Difference - 7/27/2007 8:12:38 PM   
FlyingFish



Posts: 566
Joined: 10/24/2002
From: Las Vegas, NV, USA
Status: offline 		Another feature of my aluminum blades is that, although the heli will remain a fixed pitch helicopter, the fixed blade pitch of each blade can be adusted to any pitch angle with a set screw. So if the blades are too heavy to spin at the normal rpm I can increase the blade pitch of each blade to get more lift at a slower head speed. but my plastic blades are 1.3 ounces each and my aluminum blades are 2.0 ounces each, not much more weight. besides I remember the old days when some guys would drill out a penny and screw it to the end of each wooden blade to add weight and stabilize the the helis gyroscopic effect. , That's Old School stuff.........

(in reply to Cambo)
       Post #: 13

RE: What's the Difference - 7/27/2007 8:31:45 PM   
Cambo



Posts: 1516
Joined: 6/20/2005
From: Phoenix, AZ, USA
Status: offline 		replied to your PM

All of them are 13-0

I also have 3 10-5's

(in reply to ViperRR)
       Post #: 14

RE: What's the Difference - 7/27/2007 8:33:25 PM