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HomeAircraftHelicopterThunder TigerRAPTOR 50 › SAFE Headspeed - How High Can I Go?
03-29-2009 07:06 PM  9 years agoPost 1
aadams1278

rrApprentice

Wilson, NC - USA

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with carbon blades, how fast is a SAFE headspeed without destroying something? i'm quite aware that a manufacturer's recommendation and what is ACTUALLY possible are two totally different things, regardless of the topic. but how high is safe? from what i have seen, manufacturers say don't go higher than 1850 to 1900 with carbons and about 1600 with wood. i've accidentally gone up to 2000 with woods before and not had a problem. (although i don't plan to continue this, just to be clear).

the heli seems to fly better and bog a lot less during maneuvers with a high headspeed (around 2000). but that's well above the recommendation. not to mention that the os 50 hyper throttle curve is way limited to keep it slow. it can do much more.

I have heard of people going as high as 2100. what do you think?

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03-29-2009 07:09 PM  9 years agoPost 2
Steff Giguere

rrProfessor

St-Eustache, Quebec, Canada

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With my OS 50 Hyper on my T-rex 600NP I fly 2100 on idle 2 and 2050 on idle 1. Have been for about 250 flights without a problem.

Team Synergy, Rail blades, Team Scorpion, V-Team

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03-29-2009 10:11 PM  9 years agoPost 3
Dino Spadaccini

rrElite Veteran

USA

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head speed
with a metal head 2200 is more than you will ever need 2100 is where i am at i have been as high as 2400 for test its freakie there

plastic head 1850 ish

RIP Roman JR
Capt USA Align Factory Team Align - Conquer Your heart
Team Futaba

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03-30-2009 02:36 AM  9 years agoPost 4
RaptorMan23

rrKey Veteran

Sioux City, IA

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Ive been running 2050 or so on my plastic head for a year with no problems

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03-30-2009 03:13 AM  9 years agoPost 5
GREYEAGLE

rrElite Veteran

Flat Land's

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What about me ???
How High before she Blow's What's that Bacon frying noise ???

greyeagle

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03-30-2009 03:20 AM  9 years agoPost 6
baddynergy

rrElite Veteran

sierra madre, ca- usa

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Ive been running 2050 or so on my plastic head for a year with no problems
not yet you haven't, but its coming with your combo..

**Unattended children will be givin a shot of espresso and a puppy**

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03-30-2009 03:26 AM  9 years agoPost 7
RaptorMan23

rrKey Veteran

Sioux City, IA

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thats ok, I like surprises

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03-30-2009 05:33 AM  9 years agoPost 8
David Blain

rrKey Veteran

Mt. Dora, Florida (USA)

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Wood Blades, Factory Muffler, Plastic grips, High RPM's....
Something bad is just gonna happen!
Smells like Helo Death to me!
Try to video it if possible

Like GREYEAGLE said: "what's the fryin' noise"
That's if it doesn't "Chernobyl itself" in mid-air...

David Blain
T.O.R.C.H.S. Orlando Member

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03-30-2009 05:51 AM  9 years agoPost 9
RaptorMan23

rrKey Veteran

Sioux City, IA

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Whos runnin woodies? Not me

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03-30-2009 05:52 AM  9 years agoPost 10
aadams1278

rrApprentice

Wilson, NC - USA

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that would be me, in the first post.

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03-30-2009 06:05 AM  9 years agoPost 11
Dood

rrProfessor

Wescanson

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With the OS50 Hyper, peak horsepower occurs at 17,000 RPM's.
With standard 8.5:1 gearing, thats exactly 2000rpms on the head.

2050 may be OK, but once you get past 2050 on the head, then you're well outside the power band. Why you would want to run like that?, I don't know.

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▲ ▲

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03-30-2009 06:12 AM  9 years agoPost 12
RaptorMan23

rrKey Veteran

Sioux City, IA

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Oh ok sorry didnt see that, btw, 2050 isnt on purpose, its hard to get it right, I dont run a governer

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03-30-2009 06:30 AM  9 years agoPost 13
Raffy

rrElite Veteran

Chicago, Illinois

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Sometimes I wonder why such a high head speed???

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03-30-2009 08:06 AM  9 years agoPost 14
RaptorMan23

rrKey Veteran

Sioux City, IA

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Not trying to highjack the thread here but my opinion on headspeed is the same as doods. you dont want it screaming becuase once you go past the engines peak hp, its just pissin in the wind. I try to keep it around 2000 but it fluctuates with temp changes and whatnot. 2000 seems to work pretty good for me. Along with -9/+11 1/2 for pitch. This is all in idle up of course, in normal Im about 1750

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03-31-2009 02:18 AM  9 years agoPost 15
kmaxphil

rrNovice

Prince George,B.C.-Canada

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As long as the head and blades can take it why not set rpm slightly above peak that way when it droops it will be drooping into the engines power band and not under it. But hey what do I know??

I do know falling behind the power required curve sucks. It even sucks more when you are in it.

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03-31-2009 03:29 AM  9 years agoPost 16
aadams1278

rrApprentice

Wilson, NC - USA

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As long as the head and blades can take it why not set rpm slightly above peak that way when it droops it will be drooping into the engines power band and not under it. But hey what do I know??
seems logical to me. although, if you're using a governor i'm not sure how much the rpm will actually fluctuate before the governor can catch up...so perhaps with a governor, it won't fluctuate that much, and you'd just rather have it right at the peak point?

i can't say. i don't use a governor... yet.

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03-31-2009 04:29 AM  9 years agoPost 17
BJames111

rrElite Veteran

San Diego, California

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As long as the head and blades can take it why not set rpm slightly above peak that way when it droops it will be drooping into the engines power band and not under it

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03-31-2009 04:39 AM  9 years agoPost 18
turboomni

rrProfessor

East of the Equator

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AHH 30% nitro @ 25 to 40 bucks a gallon... run up the Hyper to 17,500 and make your digi servos work hard and bang that poor heli around for a whopping 8 minutes. Although very popular to see these days,,if you are a relative newcomer you don't need all that power and should concern yourself with collective management. I only say this as you are a Heliman on your RR description. You don't need 5000 HP to do most everything/...
I run my Rappy Hyper 50 at 1800 1900 and 2000. I usually run 1900 headspeed with my carbsmart and get an easy 11 minute run times.
Power is important but it isn't everything.

Setup is everything, All my heli's can fly far better than I can pilot them

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03-31-2009 04:57 AM  9 years agoPost 19
David Blain

rrKey Veteran

Mt. Dora, Florida (USA)

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"Collective Managment"
I spend every flight working on this vs. when I was a rookie and used massive rpms and full stick throws to overcome poor stick control!
Now the less I throw the stick in any mode, the more control I seem to have!
Good response turboomni
Control, Control, Control, every movement should be fluid, smooth as glass!

David Blain
T.O.R.C.H.S. Orlando Member

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04-01-2009 04:52 AM  9 years agoPost 20
turboomni

rrProfessor

East of the Equator

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I spend every flight working on this vs. when I was a rookie and used massive rpms and full stick throws to overcome poor stick control!
Been there done that too. I used to be and still am up to a point impressed with the "SLAM BAM THANKYOU MAM" type of flying. Although very impressive,,, banging the heli within an inch of it's life within an inch off the ground I get bored quickly watching this. When I see pilot with gracefull smooth controlled moves ,,like a rather slow inverted backwards figure 8 in full controll impresses me more. Big gracefull manuveuvers that are in full control that paint the sky as RAJA says.
I see many pilots that "Bang the MAM" but couldn't do the the backwards perfect inverted figure 8 or other more basic moves.
My other favorite heli is my OLD MIN AIR GASSER 1005. 13 lbs of grace and 20 minute run times on 16 ounces of gas @ 2 BUCKS A GALLON.
The gasser is big and beautiful to fly and watch and can do most everything except 'BANG the MAM" ,,it takes it's time,,,,lol

Setup is everything, All my heli's can fly far better than I can pilot them

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HomeAircraftHelicopterThunder TigerRAPTOR 50 › SAFE Headspeed - How High Can I Go?
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