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Search: Posts Made By: CJ Eliassen
Showing results 1 to 35 of 45
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Forum: Rotorheads
27th Apr 2004, 17:37
Replies: 1,983
Views: 215,352
Posted By CJ Eliassen

Heliport, You need to get out more often. ...

Heliport,

You need to get out more often. Lu has been doing this for a very long time on alot of boards. He has pissed off most Robinson professionals and you can find dozens of "rude" posts all...
Forum: Rotorheads
27th Apr 2004, 17:37
Replies: 2,217
Views: 300,624
Posted By CJ Eliassen

Heliport, You need to get out more often. ...

Heliport,

You need to get out more often. Lu has been doing this for a very long time on alot of boards. He has pissed off most Robinson professionals and you can find dozens of "rude" posts all...
Forum: Rotorheads
27th Apr 2004, 14:54
Replies: 1,983
Views: 215,352
Posted By CJ Eliassen

Sometimes you have to be rude for some people to...

Sometimes you have to be rude for some people to get a hint. I have seen Lu's posts for a long lone time and he is all talk. He simply is far too afraid to go and perform his "tests" himself for...
Forum: Rotorheads
27th Apr 2004, 14:54
Replies: 2,217
Views: 300,624
Posted By CJ Eliassen

Sometimes you have to be rude for some people to...

Sometimes you have to be rude for some people to get a hint. I have seen Lu's posts for a long lone time and he is all talk. He simply is far too afraid to go and perform his "tests" himself for...
Forum: Rotorheads
26th Apr 2004, 18:16
Replies: 1,983
Views: 215,352
Posted By CJ Eliassen

LU, you just don't get it. You are the idiot and...

LU, you just don't get it. You are the idiot and you have made yourself out to be one on just about every Robinson related helicopter board. I SAY AGAIN, PUT UP OR SHUT UP!

Don't say another...
Forum: Rotorheads
26th Apr 2004, 18:16
Replies: 2,217
Views: 300,624
Posted By CJ Eliassen

LU, you just don't get it. You are the idiot and...

LU, you just don't get it. You are the idiot and you have made yourself out to be one on just about every Robinson related helicopter board. I SAY AGAIN, PUT UP OR SHUT UP!

Don't say another...
Forum: Rotorheads
26th Apr 2004, 14:05
Replies: 2,217
Views: 300,624
Posted By CJ Eliassen

Lu, Did you even read my post? I think you...

Lu,

Did you even read my post? I think you are full of crap. You have no concept of how to conduct a test and if you are too lazy to drive 200KM then SHUT UP!! I drive 200KM every day going to...
Forum: Rotorheads
26th Apr 2004, 14:05
Replies: 1,983
Views: 215,352
Posted By CJ Eliassen

Lu, Did you even read my post? I think you...

Lu,

Did you even read my post? I think you are full of crap. You have no concept of how to conduct a test and if you are too lazy to drive 200KM then SHUT UP!! I drive 200KM every day going to...
Forum: Rotorheads
26th Apr 2004, 01:45
Replies: 5
Views: 1,125
Posted By CJ Eliassen

Is that the Gimli Glider? Did he mention...

Is that the Gimli Glider? Did he mention anything about those Robinson deathtraps? LOL
Forum: Rotorheads
25th Apr 2004, 20:58
Replies: 1,983
Views: 215,352
Posted By CJ Eliassen

Lu Zuckerman, You obviously fail to realize...

Lu Zuckerman,

You obviously fail to realize how much you discredit yourself by continuing this nonsense. You claim to be such a great engineer, yet you are performing a test via the internet with...
Forum: Rotorheads
25th Apr 2004, 20:58
Replies: 2,217
Views: 300,624
Posted By CJ Eliassen

Lu Zuckerman, You obviously fail to realize...

Lu Zuckerman,

You obviously fail to realize how much you discredit yourself by continuing this nonsense. You claim to be such a great engineer, yet you are performing a test via the internet with...
Forum: Rotorheads
31st Mar 2004, 12:43
Replies: 8
Views: 2,217
Posted By CJ Eliassen

vorticey, A coaxial rotor is where two...

vorticey,

A coaxial rotor is where two counter rotating rotors come from the same shaft. You are thinking about a tandem rotor system.
Forum: Rotorheads
30th Mar 2004, 12:39
Replies: 8
Views: 2,217
Posted By CJ Eliassen

Tail rotor?

Tail rotor?
Forum: Rotorheads
29th Mar 2004, 18:17
Replies: 392
Views: 86,955
Posted By CJ Eliassen

I have gotten into VRS at 5 feet before. :) ...

I have gotten into VRS at 5 feet before. :) Tail rotor VRS:)
Forum: Rotorheads
29th Mar 2004, 14:44
Replies: 8
Views: 2,217
Posted By CJ Eliassen

Dave, In autorotation, the turning force is...

Dave,

In autorotation, the turning force is not the drag on the rotor, but the friction in the gear box. Therefore, the helicopter will turn with the rotor that has the greatest load. Does this...
Forum: Rotorheads
29th Mar 2004, 13:05
Replies: 392
Views: 86,955
Posted By CJ Eliassen

Charlie, In the spreadsheet I sent you, Vi 1...

Charlie,

In the spreadsheet I sent you, Vi 1 is the airspeed that the helicopter experiences ETL. On the chart it is represented on the bottom as Vi/101.4.

Hope this helps.
Forum: Rotorheads
28th Mar 2004, 23:42
Replies: 392
Views: 86,955
Posted By CJ Eliassen

PPrune Fan, Why is it so hard to believe...

PPrune Fan,

Why is it so hard to believe that a 45 degree angled descent can't achieve VRS when at 35 knots? It can happen and has happened.
Forum: Rotorheads
28th Mar 2004, 16:03
Replies: 392
Views: 86,955
Posted By CJ Eliassen

Nick, I gave an example of a helicopter...

Nick,

I gave an example of a helicopter that can experience VRS at above 35 knots.

One reason books explain it in this manner is that we don't use sophisticated equipment to determine...
Forum: Rotorheads
28th Mar 2004, 13:04
Replies: 392
Views: 86,955
Posted By CJ Eliassen

Nick, Who is defining experience and...

Nick,

Who is defining experience and occurance here? And what's the definition of nibble?

If a helicopter begins to experience VRS at 35 knots, no matter how small the loss of lift, the...
Forum: Rotorheads
27th Mar 2004, 17:43
Replies: 392
Views: 86,955
Posted By CJ Eliassen

Charlie, Ask them to prove it too you. Do...

Charlie,

Ask them to prove it too you. Do you have the formula for VRS?

C.J.
Forum: Rotorheads
27th Mar 2004, 15:10
Replies: 392
Views: 86,955
Posted By CJ Eliassen

Charlie, What do they say the correct answer...

Charlie,

What do they say the correct answer is?

Nick,

Several helicopters can experience VRS at 35 knots. Helicopters with highly loaded rotors at gross weight and high altitude may...
Forum: Rotorheads
26th Mar 2004, 17:25
Replies: 392
Views: 86,955
Posted By CJ Eliassen

Charlie, Some things to remember about VRS...

Charlie,

Some things to remember about VRS is that the airspeed and ROD required to enter VRS change depending on the aircrafts weight, density altitude, and rotor loading.

A lightly loaded...
Forum: Rotorheads
25th Mar 2004, 17:31
Replies: 10
Views: 1,309
Posted By CJ Eliassen

No overspeed would occur. The governor will snap...

No overspeed would occur. The governor will snap the throttle shut faster than you could ever react and the RPM wouldn't jump up very high.

Same thing with a belt failure. The rotor RPM starts...
Forum: Rotorheads
24th Mar 2004, 13:27
Replies: 1,983
Views: 215,352
Posted By CJ Eliassen

They don't stick huey blades on them because they...

They don't stick huey blades on them because they are too heavy and you would lose useful load. The current blades are fine and the R-44 autorotation characterisitcs are excellent.

They did...
Forum: Rotorheads
24th Mar 2004, 13:27
Replies: 2,217
Views: 300,624
Posted By CJ Eliassen

They don't stick huey blades on them because they...

They don't stick huey blades on them because they are too heavy and you would lose useful load. The current blades are fine and the R-44 autorotation characterisitcs are excellent.

They did...
Forum: Rotorheads
24th Mar 2004, 10:47
Replies: 2,217
Views: 300,624
Posted By CJ Eliassen

I suggest you might want to think about a private...

I suggest you might want to think about a private pilot course here in the states. We teach pilots a few things about helicopters before letting them loose.

Remember this quote?

"I may only...
Forum: Rotorheads
24th Mar 2004, 10:47
Replies: 1,983
Views: 215,352
Posted By CJ Eliassen

I suggest you might want to think about a private...

I suggest you might want to think about a private pilot course here in the states. We teach pilots a few things about helicopters before letting them loose.

Remember this quote?

"I may only...
Forum: Rotorheads
24th Mar 2004, 01:13
Replies: 2,217
Views: 300,624
Posted By CJ Eliassen

I have done some pretty agressive maneuvers int...

I have done some pretty agressive maneuvers int he R-22 and R-44 and the RPM never strayed more than one percent. There is plenty of torque from the engine to maintain the RPM even if the blades...
Forum: Rotorheads
24th Mar 2004, 01:13
Replies: 1,983
Views: 215,352
Posted By CJ Eliassen

I have done some pretty agressive maneuvers int...

I have done some pretty agressive maneuvers int he R-22 and R-44 and the RPM never strayed more than one percent. There is plenty of torque from the engine to maintain the RPM even if the blades...
Forum: Rotorheads
23rd Mar 2004, 14:59
Replies: 23
Views: 2,911
Posted By CJ Eliassen

Yes, you can get any instrument rating without...

Yes, you can get any instrument rating without any actual under the FAA. Since the R-22 and R-44 and anything else less then about 1.5 Million is not IFR certified, actual in a helicopter is...
Forum: Rotorheads
23rd Mar 2004, 14:23
Replies: 2,217
Views: 300,624
Posted By CJ Eliassen

You might want to take your own advice. ...

You might want to take your own advice.

Take a spinning disc that weighs 2000 pounds and another that weighs 20 pounds and put them in space. You spin both up to the same constant RPM the same...
Forum: Rotorheads
23rd Mar 2004, 14:23
Replies: 1,983
Views: 215,352
Posted By CJ Eliassen

You might want to take your own advice. ...

You might want to take your own advice.

Take a spinning disc that weighs 2000 pounds and another that weighs 20 pounds and put them in space. You spin both up to the same constant RPM the same...
Forum: Rotorheads
22nd Mar 2004, 16:07
Replies: 2,217
Views: 300,624
Posted By CJ Eliassen

Heavier blades don't have more torque, just more...

Heavier blades don't have more torque, just more inertia. The tail rotor won't be affected at all. They will spin up and slow down at a slower rate however.

What are they going to make...
Forum: Rotorheads
22nd Mar 2004, 16:07
Replies: 1,983
Views: 215,352
Posted By CJ Eliassen

Heavier blades don't have more torque, just more...

Heavier blades don't have more torque, just more inertia. The tail rotor won't be affected at all. They will spin up and slow down at a slower rate however.

What are they going to make...
Forum: Rotorheads
14th Aug 2003, 20:52
Replies: 15
Views: 1,590
Posted By CJ Eliassen

The effects of humidity on air density are around...

The effects of humidity on air density are around 1%, The effects of humidity on engine performance can be as much as 10%.

Quote: Alright, so if you have a cool temperature of 20 degrees you...
Showing results 1 to 35 of 45
 
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