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Forum: Rotorheads
10th Feb 2020, 10:23
Replies: 84
Views: 21,225
Posted By AnFI

what's the 'yaw stiffness' on a 139 like? is it...

what's the 'yaw stiffness' on a 139 like? is it really as bad as ShyTorque suggests?
Forum: Rotorheads
10th Feb 2020, 10:20
Replies: 84
Views: 21,225
Posted By AnFI

"in a Wessex?" I presume you disagree with the...

"in a Wessex?" I presume you disagree with the CAA on this:

"

This depends heavily on the yaw stiffness of the aircraft without TR thrust. For example, the Gazelle, Squirrel, Jetranger, Sea...
Forum: Rotorheads
10th Feb 2020, 07:33
Replies: 84
Views: 21,225
Posted By AnFI

You have a point and I really hate criticism of...

You have a point and I really hate criticism of pilots but you are a hypocrite having made a much worse criticism of a similar kind.
One case was incompetence (by system or pilot), with fatalities....
Forum: Rotorheads
10th Feb 2020, 06:28
Replies: 84
Views: 21,225
Posted By AnFI

I am sure that you are right that the SIM does...

I am sure that you are right that the SIM does this.
If the aircraft does this, then how is it allowed to fly?
Who would fly in such an aircraft? Darwinian process at work maybe?

ShyTorque
Yes...
Forum: Rotorheads
9th Feb 2020, 21:24
Replies: 19
Views: 4,656
Posted By AnFI

insincere ibberish veiled insults unmoderated,...

insincere ibberish veiled insults unmoderated, makes you sick.
Nothing to do with pointless servo duplication.
Forum: Rotorheads
9th Feb 2020, 20:54
Replies: 84
Views: 21,225
Posted By AnFI

SASless OF COURSE you already know that you...

SASless
OF COURSE you already know that you need to point the stick in the direction you want to go !!!
Some people here seem to think you point the stick forward in the cockpit, and put the nose...
Forum: Rotorheads
9th Feb 2020, 15:23
Replies: 84
Views: 21,225
Posted By AnFI

"match the rate of rotation is not a recognised...

"match the rate of rotation is not a recognised or even slightly valid technique."

souldn't mix recognised and valid here. maybe not recognised but obviously valid.

if, by yaw, one keeps the...
Forum: Rotorheads
8th Feb 2020, 21:54
Replies: 19
Views: 4,656
Posted By AnFI

Crab: "where duplication is achievable without...

Crab: "where duplication is achievable without enormous weight penalty, it is desirable to provide redundancy"
good point, quite right.
It is about measuring how worthwhile it is. Not ONLY in terms...
Forum: Rotorheads
8th Feb 2020, 21:38
Replies: 84
Views: 21,225
Posted By AnFI

eh, you Jimmy: "How almost zero airspeed "flare"...

eh, you Jimmy: "How almost zero airspeed "flare" could increase NR?" You can actually flare from a dive to horizontal, it works.

Crab :=..... wrt "he has lowered the lever to reduce tq...
Forum: Rotorheads
4th Feb 2020, 17:26
Replies: 84
Views: 21,225
Posted By AnFI

TR failure? Pilot tried well and very good...

TR failure?

Pilot tried well and very good outcome. Was the heart recipient a fatality?
Good thing it was not over a city.
Could have been a CATASTROPHE ?

to gain airspeed in a rotating...
Forum: Rotorheads
4th Feb 2020, 17:13
Replies: 19
Views: 4,656
Posted By AnFI

"We await your brand of simple yet effective...

"We await your brand of simple yet effective servos to hit the helicopter market"

I think Bell, Robinson and others make a historically reliable single hydraulic servo arragement.
Certainly...
Forum: Rotorheads
21st Jan 2020, 16:43
Replies: 19
Views: 4,656
Posted By AnFI

Simplicity focus margin . looking at the diagram...

Simplicity focus margin . looking at the diagram the component is excessively complex not really fit for 10^-9 servos to be dependant on imo
Forum: Rotorheads
20th Jan 2020, 22:07
Replies: 19
Views: 4,656
Posted By AnFI

212: "What would your solution be" I would try...

212: "What would your solution be"
I would try and do what this pilot did and have it happen at 4ft.

Engines?!?!?! overrated !!! better to put the effort into important real things
Forum: Rotorheads
20th Jan 2020, 20:31
Replies: 19
Views: 4,656
Posted By AnFI

"the cyclic pitch actuator that let go" or maybe...

"the cyclic pitch actuator that let go" or maybe one of the three double actuators

1x10^-9 is a bogus fantasy as we see with the terrible toll this delusion results in

would have been a...
Forum: Rotorheads
13th Jan 2020, 11:36
Replies: 19
Views: 4,656
Posted By AnFI

How 'catestrophic' would it be if EC135 MR...

How 'catestrophic' would it be if

EC135 MR actuator tie-bar fracture while lifting off, lands but heavy damage. Link (https://www.gov.uk/aaib-reports/aaib-investigation-to-ec135t1-vp-cps)
...
Forum: Rotorheads
5th Sep 2019, 15:01
Replies: 49
Views: 12,192
Posted By AnFI

found this, interestig:Kerosene or Gas Oil? How...

found this, interestig:Kerosene or Gas Oil? How to tellHave you moved into a house and wondered what type of heating oil you are supposed to put in the tank? Luckily the answer is relatively...
Forum: Rotorheads
14th Jun 2019, 22:57
Replies: 48
Views: 28,071
Posted By AnFI

damned rude

damned rude
Forum: Rotorheads
14th Jun 2019, 22:35
Replies: 48
Views: 28,071
Posted By AnFI

BOTH engines !!!! Again? Surely not possible, at...

BOTH engines !!!! Again? Surely not possible, at least it's not over a hostile congested area :rolleyes:
Forum: Rotorheads
25th Apr 2019, 03:54
Replies: 165
Views: 45,336
Posted By AnFI

and most are too low at the time of the accident...

and most are too low at the time of the accident ...:8
Forum: Rotorheads
25th Apr 2019, 01:42
Replies: 256
Views: 286,895
Posted By AnFI

i saw BA blew $850m on fuel hedging, management...

i saw BA blew $850m on fuel hedging, management eh?
Forum: Rotorheads
25th Apr 2019, 01:39
Replies: 58
Views: 31,364
Posted By AnFI

wot? 2 engines and no fuel? really? see Cultha...

wot? 2 engines and no fuel? really?
see Cultha thread and Category A Takeoff thread
Forum: Rotorheads
25th Apr 2019, 01:34
Replies: 1,512
Views: 1,587,090
Posted By AnFI

sounds like it needs a bigger fenestron (and a...

sounds like it needs a bigger fenestron (and a bigger engine) ??
Forum: Rotorheads
25th Apr 2019, 01:07
Replies: 165
Views: 45,336
Posted By AnFI

DB, Shy, megan, JE and BR There are some...

DB, Shy, megan, JE and BR

There are some really good points there, thank you.
They do throw out a few elements out that might help the religious extremists understand the infidels, and maybe...
Forum: Rotorheads
22nd Apr 2019, 18:21
Replies: 165
Views: 45,336
Posted By AnFI

DB COST BENEFIT ANALYSIS: CBA Yes -...

DB

COST BENEFIT ANALYSIS: CBA

Yes - what you say is the B part, I agree!!! Not in dispute (mostly)

To make a valid decision you need to look at the C part: The COST
You cant just claim...
Forum: Rotorheads
22nd Apr 2019, 00:18
Replies: 165
Views: 45,336
Posted By AnFI

Lonewolf 50 "Go back to school, and learn again...

Lonewolf 50 "Go back to school, and learn again the difference between correlation and causation." I didn't make any comment regarding cause or correlation, it's just a factoid. What should I be...
Showing results 1 to 25 of 826
 


 
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