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Search: Posts Made By: maxtork
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Forum: Rotorheads
7th Sep 2010, 00:22
Replies: 301
Views: 142,166
Posted By maxtork

I would bet that you could indeed make full...

I would bet that you could indeed make full deflection of the cyclic during shut down either with hydraulics or not but doing so while the blades are still spinning is a tougher deal. You would have...
Forum: Rotorheads
6th Sep 2010, 22:43
Replies: 301
Views: 142,166
Posted By maxtork

If I am not mistaken the hydraulic pump is drive...

If I am not mistaken the hydraulic pump is drive by the main gearbox so if the blades stop turning then so does the pump. I think there may be an accumulator in the system but that will supply...
Forum: Rotorheads
6th Sep 2010, 14:03
Replies: 163
Views: 40,181
Posted By maxtork

With an electric set up as described you are...

With an electric set up as described you are basically trading a fuel tank for a battery. You can run the fuel tank to lower levels to save weight and allow the helicopter to do more work. A battery...
Forum: Rotorheads
15th Aug 2010, 18:06
Replies: 301
Views: 142,166
Posted By maxtork

Well from what I have heard this COULD be a good...

Well from what I have heard this COULD be a good thing. The engines really aren't the limiting factor until you start to get up in altitude as you are torque limited until you get up there. I have...
Forum: Rotorheads
30th Jul 2010, 15:22
Replies: 301
Views: 142,166
Posted By maxtork

EC145 starting is not by FADEC as stated...

EC145 starting is not by FADEC as stated previously. It is basically like starting an AS350 B2 but it has the throttle on the twist grip and a magnetically held start switch that lets go after about...
Forum: Rotorheads
27th Jun 2010, 15:11
Replies: 7
Views: 8,582
Posted By maxtork

Very sad news. I met Chuck Scott years ago when I...

Very sad news. I met Chuck Scott years ago when I worked for Erickson. He and his wife are super nice people and I much enjoyed their company.

RIP my friend

Max
Forum: Rotorheads
28th May 2010, 18:36
Replies: 45
Views: 27,560
Posted By maxtork

PT6ER, You aint just whistling dixie. I've...

PT6ER,

You aint just whistling dixie. I've done the back seat thing in a crane and it will sure scramble your eggs! Even on a firefighting mission it can get uncomfortable with the smell of smoke...
Forum: Rotorheads
25th May 2010, 21:12
Replies: 45
Views: 27,560
Posted By maxtork

Ah! see I'm not losing my marbles after all lol ...

Ah! see I'm not losing my marbles after all lol

Thanks PT6er
Max
Forum: Rotorheads
24th May 2010, 23:09
Replies: 45
Views: 27,560
Posted By maxtork

John, If I remember correctly the S64E did...

John,

If I remember correctly the S64E did not have the yaw function on the back seat controls but the S64F did. I remember riding left seat while setting a radio antenna and the back seat pilot...
Forum: Rotorheads
18th Apr 2010, 02:35
Replies: 22
Views: 13,106
Posted By maxtork

I stopped by and talked to AVX while at the Quad...

I stopped by and talked to AVX while at the Quad A show this week. Some interesting points that I took away from my brief conversation:

1. Performance is listed as 120kts as mentioned before....
Forum: Rotorheads
5th Mar 2010, 18:54
Replies: 11
Views: 2,124
Posted By maxtork

I seem to recall another Astar accident many...

I seem to recall another Astar accident many years ago where the pilot had a high side governor failure. He tried to manipulate the ECL to keep from overspeeding and ended up pulling the engine back...
Forum: Rotorheads
5th Mar 2010, 18:42
Replies: 22
Views: 5,686
Posted By maxtork

Ned, Probably the same way I "hear" my wife...

Ned,

Probably the same way I "hear" my wife nagging at me but never "listen" to her! It happens in maintenance often as well unfortunately. Several people can look at a loose nut or bolt expecting...
Forum: Rotorheads
21st Jan 2010, 22:49
Replies: 134
Views: 55,637
Posted By maxtork

Ned, Hopefully no news is good news in this...

Ned,

Hopefully no news is good news in this case. I hope he is out flying in search of coworkers.

fingers crossed

Max
Forum: Rotorheads
8th Dec 2009, 21:27
Replies: 8
Views: 8,337
Posted By maxtork

Ball bearings can carry radial as well as axial...

Ball bearings can carry radial as well as axial loads. Roller bearings typically are not used for axial loads but can carry more load radially than a ball bearing as they have a larger contact area....
Forum: Rotorheads
24th Nov 2009, 12:59
Replies: 2
Views: 1,629
Posted By maxtork

This is not uncommon to get carbon build up even...

This is not uncommon to get carbon build up even with the Mobil 254 HTS oil. I always recommend cleaning the tube at the 600 hour inspection. Some aircraft seem to do it more than others.

Do you...
Forum: Rotorheads
5th Oct 2009, 14:18
Replies: 12
Views: 2,224
Posted By maxtork

Is it just me or does this seem to take an...

Is it just me or does this seem to take an already complex system and make it even more so? I would think a much easier solution to all this would be to simply link the pilot and copilot controls...
Forum: Rotorheads
29th Sep 2009, 16:19
Replies: 16
Views: 2,528
Posted By maxtork

The article references a payload of 2.6 tonne for...

The article references a payload of 2.6 tonne for the Blackhawk and 2 tonne for the Puma. I would be curious to see what the delta is at, say 10,000 feet. Sikorsky has never been known for building...
Forum: Rotorheads
11th Jun 2009, 16:59
Replies: 10
Views: 2,162
Posted By maxtork

Grav, Yeah the rotation helps a bit too!...

Grav,

Yeah the rotation helps a bit too! Actually I was envisioning a system like the one you described with a feathering bearing and some sort of collective pitch control on the rotor but using...
Forum: Rotorheads
8th Jun 2009, 20:36
Replies: 10
Views: 2,162
Posted By maxtork

Yes this is true...an auto would be a bit tricky...

Yes this is true...an auto would be a bit tricky with no control!

Max
Forum: Rotorheads
6th Jun 2009, 04:29
Replies: 10
Views: 2,162
Posted By maxtork

Well helicopters have often been called flying...

Well helicopters have often been called flying egg beaters...this concept takes that name to new levels!

Graviman...I agree that swashplates and pitch control would be difficult with that layout...
Forum: Rotorheads
6th May 2009, 13:44
Replies: 925
Views: 274,077
Posted By maxtork

Yeah it's full size alright. I got to look around...

Yeah it's full size alright. I got to look around it a bit yesterday. Pretty slick looking machine thats for sure!

http://i7.photobucket.com/albums/y275/maxtork/x2mockup2.jpg

Max
Forum: Rotorheads
15th Apr 2009, 04:41
Replies: 301
Views: 142,166
Posted By maxtork

Svenestron, Yes I believe it is to reduce...

Svenestron,

Yes I believe it is to reduce the interaction between the tip vorticies but it has been a looooong time since I went to school on that machine so I wouldn't swear it to be true. I can...
Forum: Rotorheads
11th Apr 2009, 01:00
Replies: 301
Views: 142,166
Posted By maxtork

Well how about that we already have a EC145...

Well how about that we already have a EC145 thread...guess we just need to get it back to the top!

Svenestron, the Apache has a stacked tail rotor. It is basically two two bladed systems stacked...
Forum: Rotorheads
10th Apr 2009, 15:43
Replies: 301
Views: 142,166
Posted By maxtork

I think thats a fine idea. It's a good aircraft...

I think thats a fine idea. It's a good aircraft but it does have it's particular challenges.

Max
Forum: Rotorheads
28th Mar 2009, 18:21
Replies: 1,998
Views: 561,667
Posted By maxtork

I'm curious about the testing that was done on...

I'm curious about the testing that was done on this gearbox. I would guess that it was done on a test stand and not on an actual airframe tied to the ground. This being the case does is accurately...
Showing results 1 to 25 of 130
 


 
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