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Search: Posts Made By: Shawn Coyle
Showing results 1 to 35 of 1000
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Forum: Rotorheads
21st Apr 2021, 17:44
Replies: 10
Views: 3,306
Posted By Shawn Coyle

Revising Cyclic and Collective

it being a few years since I did the last revision, and some new ideas have popped up, I'm asking for suggestions for the next revision. Plasesend me a pm, and your ideas will be considered.
Forum: Rotorheads
27th Jun 2019, 18:34
Replies: 3
Views: 3,370
Posted By Shawn Coyle

I'll see whar can be done with Amazon. In the...

I'll see whar can be done with Amazon.
In the meantimr, use Eagle Eye Solutions, LLC (http://www.eagleeyesolutionsllc.com) . and use discount code 'vertical'
Forum: Rotorheads
20th Feb 2019, 22:47
Replies: 10
Views: 3,082
Posted By Shawn Coyle

Autos in the Gazelle

You wouldn't want to do a lot of autos to touchdown in the Gazelle (I know, I know, Shawbury di a lot of em), and the overhead throttle made recovery from a screwed up auto very entertaining for the...
Forum: Rotorheads
10th Feb 2019, 14:23
Replies: 119
Views: 50,202
Posted By Shawn Coyle

How doi you know it's VFR with no lights

Seems impossible to know what the vis is without lights on the ground at night when t's overcast...
Forum: Rotorheads
7th Feb 2019, 01:35
Replies: 119
Views: 50,202
Posted By Shawn Coyle

No . such thing as VFR at Night

Except over a built up area.
Did she have an IFR rating?
Forum: Rotorheads
14th Jun 2018, 15:49
Replies: 17
Views: 4,782
Posted By Shawn Coyle

Beware that unless you are configured for less...

Beware that unless you are configured for less than 9 pax, the HV curve is a limitation, not in the perfiotmance section, but in the limitations. Also look for a W-A _t Cgart.
Forum: Rotorheads
17th Oct 2016, 22:27
Replies: 8
Views: 3,953
Posted By Shawn Coyle

Thanks for all the kind words. All three readers...

Thanks for all the kind words. All three readers have now been identified!
Cyclic and Collective has all the material from 'The art and Science', plus 50% more bad jokes and puns.
I'm working ona...
Forum: Rotorheads
23rd Mar 2015, 15:17
Replies: 32
Views: 17,718
Posted By Shawn Coyle

I heard that the aircraft was close to 30 years...

I heard that the aircraft was close to 30 years old, and had close to 10K hours. Was there need to inspect the spindles by either age or hours?
Going to be pretty difficult to track down a...
Forum: Rotorheads
22nd Mar 2015, 01:40
Replies: 7
Views: 2,830
Posted By Shawn Coyle

From a philosophy point of view, you should have...

From a philosophy point of view, you should have at least three 30 second OEI events in the larder, so to speak, before you take off.
One for an engine failure during takeoff, after TDP. where you...
Forum: Rotorheads
9th Jan 2015, 20:03
Replies: 13
Views: 5,730
Posted By Shawn Coyle

When I was on exchange at Boscombe Down, and we...

When I was on exchange at Boscombe Down, and we were doing a lot of Doppler testing, compass swings were done to a gnat's whisker of precision. This was necessary to know what was affecting the...
Forum: Rotorheads
1st Jan 2015, 18:56
Replies: 11
Views: 1,865
Posted By Shawn Coyle

If you can find 'The Art and Science of Flying...

If you can find 'The Art and Science of Flying Hellicopters' on abebooks.com, or ebay, you're more than welcome to pay the ludicrous prices asked.
On the other hand, if you want the newer, bigger...
Forum: Rotorheads
31st Dec 2014, 17:50
Replies: 26
Views: 7,609
Posted By Shawn Coyle

Paul: To be very precise - what you're sensing...

Paul:
To be very precise - what you're sensing is side force - not sideslip. The Slip ball does not measure sideslip - a common mistake.

For others...
For the first part of the climb following...
Forum: Rotorheads
30th Dec 2014, 01:46
Replies: 5
Views: 3,676
Posted By Shawn Coyle

Top thing I'd like to do is have lots of students...

Top thing I'd like to do is have lots of students at my class...
Forum: Rotorheads
30th Dec 2014, 01:44
Replies: 26
Views: 7,609
Posted By Shawn Coyle

It's also important to tell you what the angle of...

It's also important to tell you what the angle of sideslip is - minimizing drag in the cruise can save fuel, and you have no way of knowing sideslip (unless you fly Airbus helicopters, of course)....
Forum: Rotorheads
28th Dec 2014, 17:09
Replies: 26
Views: 7,609
Posted By Shawn Coyle

Grumpy: it's important for maximum angle of...

Grumpy:
it's important for maximum angle of climb in a twin engine machine that's suddenly lost one in the hover - currently there is no way to show airspeed repeatedly below 40 knots, and for many...
Forum: Rotorheads
27th Dec 2014, 20:41
Replies: 26
Views: 7,609
Posted By Shawn Coyle

Been around for a while. Surprised it hasn't...

Been around for a while. Surprised it hasn't caught on - but then again, knowing how the 'we haven't needed it before so we don't need it now' mentality is so prevalent in our industry, perhaps not...
Forum: Rotorheads
21st Dec 2014, 02:11
Replies: 26
Views: 9,480
Posted By Shawn Coyle

Unless you're over a built-up area with cultural...

Unless you're over a built-up area with cultural lighting, there is no such thing as Night VFR...
Look for old definitions of visual flight rules that include the ability to orient the aircraft by...
Forum: Rotorheads
18th Nov 2014, 21:18
Replies: 34
Views: 5,367
Posted By Shawn Coyle

Rather than tip speed change, as stated above,...

Rather than tip speed change, as stated above, think of rotor RPM with respect to the fuselage (or rate of blades passing the tail boom). the governor only sees that - so a rapid right yaw will make...
Forum: Rotorheads
4th Nov 2014, 23:00
Replies: 18
Views: 4,169
Posted By Shawn Coyle

Sloping ground testing is done on carefully...

Sloping ground testing is done on carefully calibrated concrete slopes (Pax River and Boscombe Down).
Have you ever seen a sloping piece of concrete anywhere else?
Limits take no account of...
Forum: Rotorheads
1st Nov 2014, 17:40
Replies: 10
Views: 2,688
Posted By Shawn Coyle

Peter: Thanks. Nice to know the other reader...

Peter:
Thanks. Nice to know the other reader has been found...
Forum: Rotorheads
31st Oct 2014, 22:16
Replies: 10
Views: 2,688
Posted By Shawn Coyle

And don't forget that on the 212, the horizontal...

And don't forget that on the 212, the horizontal stab has slightly different angles between the left and right sides....
Forum: Rotorheads
30th Oct 2014, 13:05
Replies: 1,125
Views: 475,017
Posted By Shawn Coyle

I wonder if there will be a weight increase to...

I wonder if there will be a weight increase to 7,500 pounds....
Forum: Rotorheads
15th Oct 2014, 20:17
Replies: 15
Views: 3,944
Posted By Shawn Coyle

There mnay be a ton of other reasons for the...

There mnay be a ton of other reasons for the limitation. Could be antthing from fuel tank design (at minimum fuel how much nose up does it take before the intake to the engine in the fuel tank is...
Forum: Rotorheads
4th Oct 2014, 01:56
Replies: 17
Views: 5,208
Posted By Shawn Coyle

If anyone wants to send cards of condolence now -...

If anyone wants to send cards of condolence now - his wife would be glad to get them (she's overwhelmed at the ones she's getting). Please PM me for her address.
If you want to send them to the...
Forum: Rotorheads
3rd Oct 2014, 21:59
Replies: 11
Views: 3,812
Posted By Shawn Coyle

Just about the noisiest helicopter I've ever...

Just about the noisiest helicopter I've ever heard. Beats a metal bladed Chinook by miles.
Forum: Rotorheads
2nd Oct 2014, 13:49
Replies: 12
Views: 6,249
Posted By Shawn Coyle

One of the best reasons for no sloping ground...

One of the best reasons for no sloping ground limits is that the baseline helicopter configuration has no attitude indicator, so you have no way of obeying any angular limit.
Forum: Rotorheads
30th Sep 2014, 23:53
Replies: 17
Views: 5,208
Posted By Shawn Coyle

I spoke with Joyce, his wife, today She's holding...

I spoke with Joyce, his wife, today She's holding up well (at 87 or so) and is planning on a memorial service for Ray sometime later in October. Few details except it will be near their home, but at...
Forum: Rotorheads
20th Sep 2014, 13:52
Replies: 19
Views: 4,458
Posted By Shawn Coyle

In the civil world, for the portion of the H-V...

In the civil world, for the portion of the H-V curve that is above the knee (i.e. youre in level flight), a one second delay is used from time of engine failure until the collective can be lowered....
Forum: Rotorheads
19th Sep 2014, 00:38
Replies: 488
Views: 181,334
Posted By Shawn Coyle

The difference in maximum speed with only one...

The difference in maximum speed with only one AFCS operational is due to pilot intervention time if an AFCS runaway happens. With two systems working, if one fails (let's say a roll actuator suddenly...
Forum: Rotorheads
5th Sep 2014, 00:29
Replies: 21
Views: 5,787
Posted By Shawn Coyle

Pay attention to any sudden increase in main...

Pay attention to any sudden increase in main rotor 1/Rev vibrations!
Forum: Rotorheads
2nd Sep 2014, 16:50
Replies: 12
Views: 2,936
Posted By Shawn Coyle

Canadian CH-47C (long time ago) was ground...

Canadian CH-47C (long time ago) was ground taxiing out after major maintenance. The Flight Engineer, known to be a very picky guy was walking up and down the cabin, listening. He suddenly said - Shut...
Forum: Rotorheads
26th Aug 2014, 17:28
Replies: 2
Views: 1,683
Posted By Shawn Coyle

Good Luck! I senses that you're way past the...

Good Luck!
I senses that you're way past the technical level of most folks (including me) on this forum.
Forum: Rotorheads
20th Aug 2014, 03:21
Replies: 16
Views: 4,185
Posted By Shawn Coyle

John: And you did pretty damn well with what...

John:
And you did pretty damn well with what you had.
Innovation!! You got to love it.
Forum: Rotorheads
20th Aug 2014, 03:19
Replies: 85
Views: 35,936
Posted By Shawn Coyle

What about what Piasecki has been up to...

What about what Piasecki has been up to recently??
Winged, augmented thrust showed pretty good promised, from what I saw.
Forum: Rotorheads
19th Aug 2014, 17:19
Replies: 16
Views: 4,185
Posted By Shawn Coyle

If memory serves me right, (as I only heard about...

If memory serves me right, (as I only heard about this in talk around the coffee pot at D Squadron, Boscombe Down and never did get to use this feature). jump navigation was used to reposition the...
Showing results 1 to 35 of 1000
 
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