PPRuNe Forums - Search Results

Go Back  PPRuNe Forums > Search Forums
Reload this Page >

Search Results

 
Search: Posts Made By: Hot and Hi
Showing results 1 to 25 of 456
Search took 0.07 seconds.
Forum: Rotorheads
22nd Sep 2021, 05:00
Replies: 145
Views: 63,146
Posted By Hot and Hi

According to Engle, USD 4.5m per aircraft (if you...

According to Engle, USD 4.5m per aircraft (if you buy over 200)
Forum: Rotorheads
17th Sep 2021, 18:04
Replies: 68
Views: 10,577
Posted By Hot and Hi

OK, but it seems the power lines are not live....

OK, but it seems the power lines are not live. The thread title makes it sound so dramatic. If the lines were live, I guess that would add some "tension".

Surprised that the ground crew (on the...
Forum: Rotorheads
24th Aug 2021, 15:59
Replies: 379
Views: 90,516
Posted By Hot and Hi

Doesnít immediately say whether itís cheaper....

Doesnít immediately say whether itís cheaper. Using the configurator it seems to be price neutral.
Forum: Rotorheads
12th Aug 2021, 17:03
Replies: 951
Views: 945,613
Posted By Hot and Hi

Parallel Universes

I can't find fault with anything you say, Stitchbitch. But are we not throwing out the child with the bathwater?

In my world (yes, I often hear that there are parallel universes, with no link...
Forum: Rotorheads
12th Aug 2021, 16:24
Replies: 0
Views: 1,079
Posted By Hot and Hi

Tourist helicopter crashes into Russian lake - August 2021

A Mil-8 tourist helicopter with 16 people on board has crashed into a lake in Russia's Far East, officials say. There were eight known survivors, Russian media quoted emergencies ministry officials...
Forum: Rotorheads
1st Aug 2021, 15:47
Replies: 16
Views: 2,829
Posted By Hot and Hi

Nairobiís, what you are describing very much...

Nairobiís, what you are describing very much sounds like the Lilium. Which has its own thread here in prune where it is being dissected.
Forum: Rotorheads
31st Jul 2021, 18:59
Replies: 16
Views: 2,829
Posted By Hot and Hi

I cannot answer your question regarding...

I cannot answer your question regarding efficiency (other might be able to do so).

The key advantage of a multicopter is that the rotor system can use fix pitch propellers. So no need for any...
Forum: Rotorheads
31st Jul 2021, 18:51
Replies: 16
Views: 2,829
Posted By Hot and Hi

I would be remarkably similar to running out of...

I would be remarkably similar to running out of fuel in a twin. Only I guess these things don't autorotate that well. (Correct me if I am wrong: they have fixed pitch rotor blades, and hence don't...
Forum: Rotorheads
27th Jul 2021, 10:24
Replies: 145
Views: 63,146
Posted By Hot and Hi

Now I know why the crew dims the cabin light...

Now I know why the crew dims the cabin light during takeoff and landing.
Forum: Rotorheads
19th Jul 2021, 06:09
Replies: 156
Views: 34,501
Posted By Hot and Hi

No, roscue, thatís not what anybody thinks. The...

No, roscue, thatís not what anybody thinks. The other way round: Being visually anchored in the world around you *prevents* vertigo.

This is not about upset recovery, but about upset prevention.
Forum: Rotorheads
19th Jul 2021, 06:06
Replies: 156
Views: 34,501
Posted By Hot and Hi

Yes, Jim, to your point. In full support of your...

Yes, Jim, to your point. In full support of your statement earlier in this thread, which I copied in.
Forum: Rotorheads
18th Jul 2021, 11:18
Replies: 32
Views: 8,624
Posted By Hot and Hi

The benefits of a rigid rotorhead.

The benefits of a rigid rotorhead.
Forum: Rotorheads
18th Jul 2021, 11:16
Replies: 86
Views: 23,018
Posted By Hot and Hi

Thanks for this Aucky. I guess the margins are...

Thanks for this Aucky. I guess the margins are very small. And it makes a difference whether you pivot around the "toe", facing the slope, or around the skid, alongside the slope.

I appreciated...
Forum: Rotorheads
18th Jul 2021, 11:11
Replies: 156
Views: 34,501
Posted By Hot and Hi

Synthetic Vision

Here is the thing: Why isn't there spatial disorientation as long as we look at the very big screen called "windscreen", with good visibility outside? We understand that illusion and contradictory...
Forum: Rotorheads
16th Jul 2021, 16:10
Replies: 32
Views: 8,624
Posted By Hot and Hi

Impressive.

Impressive.
Forum: Rotorheads
12th Jul 2021, 19:23
Replies: 11
Views: 2,110
Posted By Hot and Hi

Lightbulb Thrust Drive System

Here is something more contemporary: Thrust Drive System Announcing Game Changing Helicopter Drive System (https://www.thrustdrive.com/news)

Picture...
Forum: Rotorheads
27th Jun 2021, 09:35
Replies: 28
Views: 3,668
Posted By Hot and Hi

OK, that's the answer for comparing old and new...

OK, that's the answer for comparing old and new engine at same density altitude. That assumes that the performance was engine limited. Often it is not, and the maximum power allowed is limited by...
Forum: Rotorheads
27th Jun 2021, 09:18
Replies: 113
Views: 27,026
Posted By Hot and Hi

Question Stall of vertical stabiliser / tail fin?

It is correct that in a CW rotating helicopter, wind from the right 'unloads' the anti-torque device. In other words, the wind pushes in the same direction as the tail rotor thrust vector. Stable so...
Forum: Rotorheads
27th Jun 2021, 08:55
Replies: 113
Views: 27,026
Posted By Hot and Hi

The below has relevance: From the...

The below has relevance:




From the actual ATSB Transport Safety Report (https://www.atsb.gov.au/media/5779875/ao-2018-026-final.pdf). Page 35:



Page 34:
Forum: Rotorheads
27th Jun 2021, 08:20
Replies: 27
Views: 6,877
Posted By Hot and Hi

RIP. Shawn's books were most insightful and his...

RIP. Shawn's books were most insightful and his approach was unconventional. His teachings had the single most significant influence in helping to become a more mature helicopter pilot.
Forum: Rotorheads
23rd Jun 2021, 20:09
Replies: 10
Views: 1,366
Posted By Hot and Hi

Measurable differences is sound pressure levels...

Measurable differences is sound pressure levels while flying overhead aside, the H130 has by far the least obtrusive sound signature of the three.
Forum: Rotorheads
22nd Jun 2021, 05:11
Replies: 113
Views: 27,026
Posted By Hot and Hi

I fully agree with your sentiment, gulli.

I fully agree with your sentiment, gulli.
Forum: Rotorheads
21st Jun 2021, 21:31
Replies: 113
Views: 27,026
Posted By Hot and Hi

That doesnít work like this neither. To the...

That doesnít work like this neither. To the opposite, new civilian pilots are first and foremost taught to not over control and to avoid harsh, rapid or abrupt control inputs. We are taught to ďride...
Forum: Rotorheads
21st Jun 2021, 21:13
Replies: 113
Views: 27,026
Posted By Hot and Hi

Actually, it doesnít work like this. Hitting...

Actually, it doesnít work like this. Hitting pedal stop is indeed common and not a bonafide emergency. It needs to be accepted and sustained to - eventually - bring this yaw to a stop.

Thinking...
Forum: Rotorheads
19th Jun 2021, 14:23
Replies: 49
Views: 12,477
Posted By Hot and Hi

The mother of all thread drifts.

The mother of all thread drifts.
Showing results 1 to 25 of 456
 


 
Forum Jump

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.