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Search: Posts Made By: Ascend Charlie
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Forum: Rotorheads
20th Jun 2022, 02:36
Replies: 220
Views: 99,704
Posted By Ascend Charlie

Does their claimed range include 30 mins reserve?...

Does their claimed range include 30 mins reserve? If not, why would CA$A approve them to operate with less reserve than a real aircraft?
Forum: Rotorheads
15th Jun 2022, 19:19
Replies: 220
Views: 99,704
Posted By Ascend Charlie

Never said it was 0 on the retreating side, just...

Never said it was 0 on the retreating side, just that the limit to the aircraft's lift generation is the retreating blade.

Be nice to have an advancing blade on each side, and not have to worry...
Forum: Rotorheads
15th Jun 2022, 05:43
Replies: 220
Views: 99,704
Posted By Ascend Charlie

They are quite inefficient. The retreating blade...

They are quite inefficient. The retreating blade is the limiting factor, with only around 40% of it producing useful lift, and at a high AoA with resultant drag.

The advancing blade has to throw...
Forum: Rotorheads
6th Dec 2021, 20:52
Replies: 220
Views: 99,704
Posted By Ascend Charlie

Oh geez, another one: They have...

Oh geez, another one:



They have ordered the Embraer EVE toy.

Sydney Seaplanes has the advantage of Grandfather Rights on the Rose Bay flying boat base, and they do trips to Palm Beach and...
Forum: Rotorheads
3rd Dec 2021, 23:57
Replies: 220
Views: 99,704
Posted By Ascend Charlie

And here's the latest wet dream from the "gimme...

And here's the latest wet dream from the "gimme some development money" crowd:
...
Forum: Rotorheads
28th Nov 2021, 22:48
Replies: 220
Views: 99,704
Posted By Ascend Charlie

There seems to be a new boy on the block: ...

There seems to be a new boy on the block:
...
Forum: Rotorheads
1st Nov 2021, 01:59
Replies: 220
Views: 99,704
Posted By Ascend Charlie

Times change, I have landed LongRangers and...

Times change, I have landed LongRangers and Squirrels in (big) backyards to pick up rich dudes, but that was in the 90s in Sydney. Don't think we would get away with it these days. And when operating...
Forum: Rotorheads
30th Oct 2021, 21:56
Replies: 220
Views: 99,704
Posted By Ascend Charlie

What is going to be the target passenger? People...

What is going to be the target passenger? People going to the airport? Coming from the airport? Let's look at these 2 first.

Travellers will have baggage. Doesn't look like much room for bags on...
Forum: Rotorheads
27th Jul 2021, 02:19
Replies: 220
Views: 99,704
Posted By Ascend Charlie

By "30x fewer" do they mean 1/30th of the number?...

By "30x fewer" do they mean 1/30th of the number? Pretty easy for a piddly 6-seater to have 1/30th the components of a B787. Take 180 seats, divide by 6, you get 30. Simples!

Hope they aren't...
Forum: Rotorheads
9th Jul 2021, 07:38
Replies: 220
Views: 99,704
Posted By Ascend Charlie

By the time they get up there, it will be time to...

By the time they get up there, it will be time to descend anyway, so the pax won't have time to get hypoxic.
Forum: Rotorheads
8th Jul 2021, 23:41
Replies: 220
Views: 99,704
Posted By Ascend Charlie

The electricity to power the illuminated ceiling...

The electricity to power the illuminated ceiling could perhaps be used to power the rotors?

And look at all those screaming little turbine blades just outside the window, at ear level. Lovely.
Forum: Rotorheads
31st Dec 2020, 00:53
Replies: 220
Views: 99,704
Posted By Ascend Charlie

and on and on the veneer goes.

and on and on the veneer goes.
Forum: Rotorheads
16th May 2019, 09:38
Replies: 220
Views: 99,704
Posted By Ascend Charlie

Wonder why there is no sound of it hovering? And...

Wonder why there is no sound of it hovering? And on the concrete pad, no indication of the amount of downwash. These things will stop it from landing in backyards or footy fields.
Forum: Rotorheads
6th Jun 2018, 07:24
Replies: 220
Views: 99,704
Posted By Ascend Charlie

Got a beer now, but the redundant brain cells are...

Got a beer now, but the redundant brain cells are still saying "Horsefeathers!!" to this article.

He claims there is no need for any infrastructure, other than a landing site. (And charging...
Forum: Rotorheads
6th Jun 2018, 06:30
Replies: 220
Views: 99,704
Posted By Ascend Charlie

OK, a planeload of 200 international passengers...

OK, a planeload of 200 international passengers lands at JFK.

40% of them, 80 people, want to go to the same hotel in Manhattan via Lillium "taxis". At 5 pax per load, that is 16 Lilliums....
Forum: Rotorheads
24th Apr 2018, 00:36
Replies: 220
Views: 99,704
Posted By Ascend Charlie

If it was Frank Robinson it might gain a little...

If it was Frank Robinson it might gain a little credence.
Forum: Rotorheads
8th Sep 2017, 10:39
Replies: 220
Views: 99,704
Posted By Ascend Charlie

OK, so now those canards appear to have lost...

OK, so now those canards appear to have lost their swivelling hinges and are now looking very fixed?? Now it is just the engines that swivel to the vertical, but no hinge or actuator is visible -...
Forum: Rotorheads
5th Sep 2017, 21:59
Replies: 220
Views: 99,704
Posted By Ascend Charlie

MJB, did you read the comments on that clip?...

MJB, did you read the comments on that clip? Astounding how many rockapes thought it was real.
Forum: Rotorheads
26th Apr 2017, 10:06
Replies: 220
Views: 99,704
Posted By Ascend Charlie

This one looks a bit more like it will ... ummm...

This one looks a bit more like it will ... ummm ... take off?

Aurora Unveils New eVTOL Aircraft at Uber Elevate Summit...
Forum: Rotorheads
24th Apr 2017, 21:33
Replies: 220
Views: 99,704
Posted By Ascend Charlie

Yeah, been asked before - when the "pods"...

Yeah, been asked before - when the "pods" retract;

1. Front seaters' legs get crushed;
2. Retractable front wheel assembly gets mangled; and
3. Machine pitches nose down due to the whole...
Forum: Rotorheads
22nd Apr 2017, 07:46
Replies: 220
Views: 99,704
Posted By Ascend Charlie

When viewed full-screen, you can see lots of...

When viewed full-screen, you can see lots of little wobbles in the pitch and yaw plane - a machine of real size and weight (with the subsequent inertia in pitch and roll) could not wobble that fast...
Forum: Rotorheads
18th Jun 2016, 05:43
Replies: 220
Views: 99,704
Posted By Ascend Charlie

One heck of a yaw moment when one engine...

One heck of a yaw moment when one engine stops......asymmetric flight would improve your leg muscles somewhat.
Forum: Rotorheads
19th May 2016, 09:48
Replies: 220
Views: 99,704
Posted By Ascend Charlie

Then these "Experts" should know that it is far...

Then these "Experts" should know that it is far more efficient to accelerate a large amount of air to a low speed, then a small amount of air to a high speed, as well as the noise. Compare the noise...
Forum: Rotorheads
17th May 2016, 21:45
Replies: 220
Views: 99,704
Posted By Ascend Charlie

No pix of it on the ground or with wheels showing...

No pix of it on the ground or with wheels showing - where in the nose could you put a retractable nosewheel that doesn't get in the way of the retractable cylinders? Where would the main gear go and...
Forum: Rotorheads
16th May 2016, 03:56
Replies: 220
Views: 99,704
Posted By Ascend Charlie

That makes 1200 lb or about 500kg, the total...

That makes 1200 lb or about 500kg, the total takeoff wt is 600kg, which minus the 200kg payload leaves an airframe of 400kg, 100kg short of the battery weight by itself - doesn't add up.

Go to the...
Forum: Rotorheads
15th May 2016, 03:31
Replies: 220
Views: 99,704
Posted By Ascend Charlie

The cg is WAY in front of the wing, with no...

The cg is WAY in front of the wing, with no canard to supply lift at the front, so that cylinder at the front will be permanently pointing down to provide upward thrust to counter the cg moment....
Showing results 1 to 26 of 26


 
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