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Search: Posts Made By: chopper_doctor
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Forum: Rotorheads
16th Sep 2013, 03:41
Replies: 7
Views: 2,278
Posted By chopper_doctor

Smile Dylithium crystals, worn out.

Dylithium crystals, worn out.
Forum: Rotorheads
2nd Sep 2013, 20:26
Replies: 28
Views: 12,941
Posted By chopper_doctor

Very sad news indeed and first of all would like...

Very sad news indeed and first of all would like to offer condolences to all the crew involved :(

As for the video......hmmmmm, seems like he was more interested in putting on a show than doing...
Forum: Rotorheads
22nd Aug 2012, 14:46
Replies: 29
Views: 13,343
Posted By chopper_doctor

CCG Heli Replacement

All I can say is dont hold your breath.
Forum: Rotorheads
24th Jun 2010, 00:23
Replies: 8
Views: 2,808
Posted By chopper_doctor

I think that is what was happening. The actuator...

I think that is what was happening. The actuator was now trying to "push" the whole T/R system instead of just the pilot valve. Turns out that the Sperry supplement in the flight manual was missing...
Forum: Rotorheads
23rd Jun 2010, 03:20
Replies: 8
Views: 2,808
Posted By chopper_doctor

Sperry 3 axis autopilot

Sorting out our new ( to us ) 212 with a sperry system in it. Pilots ( also new to the system ) have reported a couple of problems. During training with heli pilot 1 "on" and either in SAS or Att,...
Forum: Rotorheads
12th Oct 2009, 13:06
Replies: 32
Views: 4,574
Posted By chopper_doctor

I have seen wires switched on Jetbox...

I have seen wires switched on Jetbox sarter/generators. Makes for a LONG and SLOW start, all else is normal. Have your engineers confirm that the wires are on the starter/generator terminals the...
Forum: Rotorheads
4th Jul 2009, 13:48
Replies: 10
Views: 2,420
Posted By chopper_doctor

On the "wet coast" you either use blade tape, or...

On the "wet coast" you either use blade tape, or you change rotor blades at half life due to erosion. The new "grey tape" is better than stainless for sand erosion, but worse in the rain. It does...
Forum: Rotorheads
23rd May 2009, 04:35
Replies: 18
Views: 2,491
Posted By chopper_doctor

Yep, better safe than sorry, so option "C" works...

Yep, better safe than sorry, so option "C" works for me. Now, it is actually quite normal for some types of engines to generate a "small" bit of metal after the are overhauled, but you want to find...
Forum: Rotorheads
7th May 2009, 02:33
Replies: 22
Views: 4,311
Posted By chopper_doctor

Just a footnote to the twitchy tail saga. Thought...

Just a footnote to the twitchy tail saga. Thought the problem was licked when the boys changed out the T/R gearbox and put the old one back on. Well,things were fine for the 45 minute flight, but the...
Forum: Rotorheads
21st Apr 2009, 18:25
Replies: 22
Views: 4,311
Posted By chopper_doctor

Consensus was to put old T/R gearbox back on and...

Consensus was to put old T/R gearbox back on and see what happens, as was noted allready, things were fine until shortly after gearbox change.
Weather finally co-operated this morning and after 45...
Forum: Rotorheads
21st Apr 2009, 15:27
Replies: 22
Views: 4,311
Posted By chopper_doctor

Unstable load. Here is my version of the reason...

Unstable load.
Here is my version of the reason why. Im sure others will have other opinions, so be easy on me!
Grease, like electricity and apprentices, tends to find the path of least resistance....
Forum: Rotorheads
18th Apr 2009, 15:08
Replies: 22
Views: 4,311
Posted By chopper_doctor

Mixing unit is smooth as silk. On the ground T/R...

Mixing unit is smooth as silk. On the ground T/R controls operate normally and smoothly. Moving T/R controls by hand from forward quadrant to P/C shaft ( ie T/R blades not connected) everything is...
Forum: Rotorheads
18th Apr 2009, 03:14
Replies: 22
Views: 4,311
Posted By chopper_doctor

Cable tension checked ok. The NFG spring has been...

Cable tension checked ok. The NFG spring has been looked at and spring tension was checked on an arbour scale ( by the other crew) Spring has not been replace yet, but thats on the list of things to...
Forum: Rotorheads
18th Apr 2009, 01:42
Replies: 22
Views: 4,311
Posted By chopper_doctor

No, i don't think its the "sikorsky shuffle"...

No, i don't think its the "sikorsky shuffle" Couple of 10,000 hour pilots flying the ship, and it started out intermittently, and now happens all the time. With aux off, the tail shake is getting...
Forum: Rotorheads
18th Apr 2009, 00:15
Replies: 22
Views: 4,311
Posted By chopper_doctor

Twitchy Tail in the S61

Just looking for a couple of ideas here gents. N model S61 on descent around 35-40% Torque, tail wags back and forth a bit. Yaw channel off, still there, AFCS off still there, Aux off still there,...
Forum: Flight Testing
4th Apr 2009, 03:37
Replies: 23
Views: 13,910
Posted By chopper_doctor

Some sort of interlock would be a good idea, but...

Some sort of interlock would be a good idea, but i have yet to see one on any of the types I am familiar with ( Bell, Sikorsky and MBB )
Forum: Rotorheads
28th Mar 2009, 00:01
Replies: 12
Views: 2,314
Posted By chopper_doctor

I have spent many a night in the "Bell hotel"....

I have spent many a night in the "Bell hotel". Just bad memories now. For me, roughing it is going down to the restaurant instead of calling for room service.........
Forum: Flight Testing
22nd Feb 2009, 15:52
Replies: 14
Views: 10,994
Posted By chopper_doctor

It may get more viscous, but not to the extent...

It may get more viscous, but not to the extent that you are going to have difficulties starting the engine. The engine driven fuel pumps on the types I am familiar with ( C20's, PT6's and T58's) all...
Forum: Rotorheads
18th Feb 2009, 02:05
Replies: 21
Views: 6,678
Posted By chopper_doctor

1) Don't touch anything 2) It's always my leg ...

1) Don't touch anything
2) It's always my leg
3) It's always your round
4) You always get the homely girl
5) Yes, you can carry my bag.
:E
Forum: Rotorheads
10th Feb 2009, 13:15
Replies: 22
Views: 3,258
Posted By chopper_doctor

Ed, sounds like you are going at it the right...

Ed, sounds like you are going at it the right way. Now, if it only happens with rotors turning and not with the ground test rig, i think you are starting to narrow your problem down. What is in the...
Forum: Rotorheads
10th Feb 2009, 02:42
Replies: 292
Views: 96,388
Posted By chopper_doctor

Not sure if these have been mentioned yet, but I...

Not sure if these have been mentioned yet, but I remember reading North SAR and thinking it was a good account of naval combat sar during the vietnam war. On Yankee Station, also not bad, but from a...
Forum: Rotorheads
9th Feb 2009, 02:19
Replies: 272
Views: 135,413
Posted By chopper_doctor

Ugly....for sure! Teeth rattling through...

Ugly....for sure! Teeth rattling through translation, uncomfortable seats for long flights, expensive parts. But, nothing better for banging down on the back of a pitching ship or following all the...
Showing results 1 to 22 of 22


 
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