A lot of people stretch their helis, me included. To do hard 3D with these blades you need to stretch it or the tail blades will suffer:-)
Spinning bigger blades reduces wing loading, doesn't increases it, and yes you may need to re balance your heli. Is that a problem? you can just reposition some components...
And you can make the heli agile with these blades also, it's all on setup.
What a misleading comment, Mr Autorotation...
These work well on 450 sized helicopters. Larger gyroscopic effect is better for first time flyers and people that want a truer f3c flight ( scale flight look ). Smaller blades on a 450 make the heli respond to inputs faster and make it more agile. So stick to 325mm blades for 3D. Larger blades make the heli more docile and wing loading is higher. Therefore easier to fly. Definitely more stable the longer the blade.
Also I seen the comments about stretching the tailboom on a 450 to use these 360mm blades. WTF? Longer blades doesn't mean you need to limo your heli. After all you are only adding 35mm to each blade. Never heard of someone extending a heli anyways..... That would change the CG and you would have to add weight to the front to balance. Duhhh guys!
Not at all a duhh. A heli will have more tail authority with a longer boom. I do speak from experience having stretched 3 450 helis. On some 450s you will have clearance issues with a non stretched boom and 350/360mm blades.
Yeah , 350mm blades might be almost do-able on a non stretch - Been there ( used 350mm blades ) , but think 335mm blades .. Why longer blades ? So you can run lower head speed , low head speed = more docile . More Noob friendly .. Less stress and so forth .
To each their own , but Im about to stretch one of my 450's so I can use 350 - 360mm blades , and longer tail rotor blades = For lower head speed .
*porqui: you need a few (if any) extra cm on the tail boom - there's no rocketscience involved, just get a bit heavier battery or move it forward, depending on where your cg is now.
All these people talking about 4s: make sure you calculate the max. headspeed, if it's to much higher than your actual headspeed you loose lots of energy in the motor which equals extra heat - which you can lower a bit for 360mm blades. Also you might look into getting a bit bigger tail blades....
So, the questions at hand for hk/jason/whoever:
Will there be a longer boom?
Will there be a longer belt?
Will there be smaller gears? (8,9,10T probably)
And, on an unrelated matter:
Will we see a "quiet" version of the hk450 (using a belt all the way from the motor to main gear to the tail, so no more gears-to-gears-noise)? You already have fitting (low-rpm, 1500-2500kv I think) motors...
*Jan, they already have 2700/2900/3200 kv motors you can use with 13t/12t/11t pinions for 4S use. Great thing about 4s is the battery stays cooler (aim for same wattage - lowers amperage). headspeed and indeed pitch range can be slightly lower since you have a larger disk, but remember the added weight. Stability is fantastic.
I just got mine, they are 350mm hole to tip, 360mm full lenght. Looks excactly as the Outrage blades. 27g each. Stiffer than the Outrage FG blades, and much lighter. Not as stiff/light as the Outrage CF blades. Have not flow them yet, but it seems like a very good bargain.
Did not try to balance, sorry. Have some tweaking to do before I change blades. Will balance later today, am at work now. The finish is outstanding by the way. People fly hard 3D with the Outrage FG, they are softer, so I would say big yes. I will use them for mild 3D at 2700hs on a stretch Pro Fbl.
I am building a Bell 212 Twin Huey which has an extended boom past the original tube, with the upward tail rotor. I would plan to use these blades as there is a significant space between the original 325 blade tips and the tail rotor. Tail rotor blades may also need to be larger. I am using the -500 motor recommended on the HK-450GT page on HK.
*porqui I use the outrage g5 boom and belt. You can also use the outrage boom and use a TT and cut the Torque Tube and thenn extend it with 4mm ID carbon tube. I have built one but not flown it. belt works fine for me.
Blades testflown and I loved them. I can only compare them to Outrage CF and FG 360. They seem to be a very good match for the vbar, while the CF is to light and did not give the stable 360 sizefeel, the FG are to heavy and muchy. Tight and direct feel, and I liked the popp, but I have 8s system, not kidding. I fly mild 3D like Hurrycanes, different funnels, Piroflips, Mobius, rainbows and Tic tocs. Unbelivable for that price!! I fly Edge FBL and SAB on my bigger birds. Should really not write this, better to keep them for myself......
2 450 helis use 350mm blades, the outrage 450 and the stretched mini protos. You can buy 12mm O.D. carbon fiber tube (not the pretty CF but its tough) and cut a longer tail boom in any length to suit. Longer belts can be had from SDP-si**** but you will need to know the total length of belt and what your belt pitch is either GT2 pitch(2mm tooth spacing) or MXL (2.03mm tooth spacing) CG can be adjusted by sliding the pack further down the heli or using a 3s 2600mah pack. Adjusting CG is easy if you use a 6s power system. For that you use a 6s 1300 to 1350mah pack which balances nicely.
This blade is quite stiff compare to normal fiberglass blade. Use it on Outrage G5 FBL and spin at 2500 rpm. Well balanced out of the bag. Fine tracking. Sport flying style and mild 3D. Will buy another few more to keep as spare.
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I have a shovel to CopterX 450V2, bought in our country, they will need to T14 min ESC 55A, 4000-4500kv motor and the sound is beautiful in the price of HK also a model from head to 450 PRO 360mm blade looks like a super model 470-490 !!!!!!!!!!!!
The best blades on the price / quality ratio for FPV!
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These are a great fit for the Outrage G5 450 sized heli. They arent quite as stiff as carbons, but you can buy 5 sets of these for 1 cheap carbon or 10 sets per one Radix. Great for learning, setup flights or "big moves". Balanced well in the package. Great stuff!