Vertical Climb-out.

[tourerjim]

I can do a vertical climb starting from a low hight & keep it going untill I climb-out with my 500 but with the 600 starts to climb then engine starts to bog then I have to climb-out, I have played around with throttle/pitch but just cant get it to climb the engine has plenty of power for all other stunts, so am I expecting to much from the engine or can you help with suggestions.

[jamiem]

Firstly, the term climb-out just means a vertical climb, not bailing out of a climb as you seem to be referring

Secondly, the engine will load up but should be able to keep a continuous climb rate. If it wants to die, you may have too much pitch for the motor.

[Tosh]

Not really sure what you`re trying to say but the higher you go the less power your IC engine will have. Electric motors just keep going.

[tourerjim]

ah now I now that I may be able to explain better, when I bring heli into a climb I then give near full aile to make her spin & then throttle up to make the climb its at this point that engine starts to bog to the point of stalling if I kept it there.

[0h5h1t]

full aileron to spin? you mean roll yea? if thats right full aileron with full pitch will load up a 50. engine tuning is also vital as too lean or too rich will still load the engine during full pitch moves.

[tourerjim]

Not really sure what you`re trying to say but the higher you go the less power your IC engine will have. Electric motors just keep going.

Seen a lad at the field do it few times, engine dosn't seem to bog on his although his is 700 but admits dosn't have enough experience to know about 600.

[tourerjim]

full aileron to spin? you mean roll yea? if thats right full aileron with full pitch will load up a 50. engine tuning is also vital as too lean or too rich will still load the engine during full pitch moves.

Thats it roll! so are you saying it should do it 'climb' cos if thats a yes then at least I know to work on why it wont!

[0h5h1t]

sounds like your problem then could be over pitching, check pitch range with gauge.
or engine tuning or a mix of both..

yes altitude will make a difference to engine tuning but you would have to go pretty high before the air got thin enough to make a big enough difference.

[tourerjim]

sounds like your problem then could be over pitching, check pitch range with gauge.
or engine tuning or a mix of both..

yes altitude will make a difference to engine tuning but you would have to go pretty high before the air got thin enough to make a big enough difference.

Pitch is +- 10 so plenty of engine power but Im wondering if engine speed at mid stick should be higher than 65% so as i go into the climb if I had had higher engine speed power would be more readily.

[moyesboy]

This manoevre is I think called a stationary death spiral.
a death spiral is where yuo start high, roll the heli onto its side with zero collective and let it fall sideways, but then put full up elevator so it tumbles as it falls. This is a veey good test of the gyro/tail hold.

By not quite rolling to 90 degrees and giving it full power you can get it to look almost like the same thing but staying still or even climbing - but it needs a lot of engine power.

I find my trex500 very much more powerfull compared to my 600n. you almost need no collective management skill the head just keeps turning at the same speed.
The 50 nitro does slow the head in heavy pitch manoevres but the head also has a lot of momentum, so you can jab bigg amounts of collective in birefly and get very sudden manoevres - however this climbing spiral thing needs to sustain a lot of collective with a lot of G force and keep the head going. Once the engines drops much below 17,000 its power output is falling, so it bogs.
You need to experiment with a little more bank and less collective to see how well it can cope. I'm guessing that the 700 you have seen do it might have more power to weight than the 600n, maybe you need a navarossi or OS55

[tourerjim]

This manoevre is I think called a stationary death spiral.
a death spiral is where yuo start high, roll the heli onto its side with zero collective and let it fall sideways, but then put full up elevator so it tumbles as it falls. This is a veey good test of the gyro/tail hold.

By not quite rolling to 90 degrees and giving it full power you can get it to look almost like the same thing but staying still or even climbing - but it needs a lot of engine power.

I find my trex500 very much more powerfull compared to my 600n. you almost need no collective management skill the head just keeps turning at the same speed.
The 50 nitro does slow the head in heavy pitch manoevres but the head also has a lot of momentum, so you can jab bigg amounts of collective in birefly and get very sudden manoevres - however this climbing spiral thing needs to sustain a lot of collective with a lot of G force and keep the head going. Once the engines drops much below 17,000 its power output is falling, so it bogs.
You need to experiment with a little more bank and less collective to see how well it can cope. I'm guessing that the 700 you have seen do it might have more power to weight than the 600n, maybe you need a navarossi or OS55

Dont follow yours fully but basically I come in low & fast then turn into a virtical climb then give aile with throttle to make the vertical climb 500 does it with ease 600 does about 3 rolls/spins & then engine starts to bog.