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Search: Posts Made By: medviation
Showing results 1 to 14 of 14
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Forum: Tech Log
26th Nov 2017, 13:07
Replies: 15
Views: 6,156
Posted By medviation

Contra Rotating Turbofan

Snecma had a proposal before of a turbofan with two contra rotating fans. It sounded good as you might have minimized drag because of the smaller wetted area of the engine, and increased bypass ratio...
Forum: Tech Log
27th May 2017, 09:06
Replies: 35
Views: 14,474
Posted By medviation

On a forward cargo door freighter you wouldn't...

On a forward cargo door freighter you wouldn't position the first pallets at the back right away right? Otherwise you tip the aircraft.
...
Forum: Tech Log
26th May 2017, 20:17
Replies: 35
Views: 14,474
Posted By medviation

Cargo doors for dedicated freighters - aft or fwd of the wing

What are some of the advantages/disadvantages of having a main deck cargo door aft or forward of the wing on freighters? I'm sure loading sequences is critical as weight and balance is constantly...
Forum: Tech Log
17th Feb 2016, 21:51
Replies: 75
Views: 18,634
Posted By medviation

^^ Oh my. Keesje finally saw this. I feel so...

^^ Oh my. Keesje finally saw this. I feel so honored. I'm a fan of your work! Thank you!
Forum: Tech Log
17th Feb 2016, 00:37
Replies: 75
Views: 18,634
Posted By medviation

I did a simple wingflex model to see how the wing...

I did a simple wingflex model to see how the wing would flex. I saw several issues with the bending motion especially on the wing brace that joins the two wings. Constant and extreme bending and...
Forum: Tech Log
15th Feb 2016, 21:41
Replies: 75
Views: 18,634
Posted By medviation

No I don't have a clue. I'm just a scruffy guy...

No I don't have a clue. I'm just a scruffy guy with no engineering or flying experience who hides in his room most of the day. I'm bringing this up for help with the analysis.



That may be....
Forum: Tech Log
15th Feb 2016, 20:20
Replies: 75
Views: 18,634
Posted By medviation

Thanks for sharing! Yeah, that's a...

Thanks for sharing!




Yeah, that's a personal preference of aviation guys like us. But for most people who just want to fly for cheap, they don't care much if it's a 2-5-2 or 3-3-3 or 3-4-3....
Forum: Tech Log
15th Feb 2016, 08:34
Replies: 75
Views: 18,634
Posted By medviation

Thanks! That's quite a useful document there! :) ...

Thanks! That's quite a useful document there! :)




I agree too. Personally I think the future would be about both size and efficiency. And with that comes along gradual airport innovations as...
Forum: Tech Log
10th Feb 2016, 19:46
Replies: 75
Views: 18,634
Posted By medviation

We may never know the exact weight/balance...

We may never know the exact weight/balance numbers but my model and similar real-life examples demonstrate the landing gear concept to be workable. Also, pitch control is not limited to the rear...
Forum: Tech Log
10th Feb 2016, 13:41
Replies: 75
Views: 18,634
Posted By medviation

The center of lift of the hyperjumbo IS directly...

The center of lift of the hyperjumbo IS directly above the landing gear (resultant center of lift of both wings).

Just to clarify, the projected CG and center of lift characteristics of this...
Forum: Tech Log
10th Feb 2016, 00:51
Replies: 75
Views: 18,634
Posted By medviation

I don't see the Antonov 225 having problems with...

I don't see the Antonov 225 having problems with it.

https://s-media-cache-ak0.pinimg.com/736x/5a/51/d7/5a51d77ecb9c036ae3230cdd689dc51a.jpg...
Forum: Tech Log
9th Feb 2016, 15:38
Replies: 75
Views: 18,634
Posted By medviation

On the argument of the Hyperjumbo's business...

On the argument of the Hyperjumbo's business case:

As I said, I'm not here to argue about the marketability of such aircraft in today's economic climate. I think the A380 is overkill for most...
Forum: Tech Log
7th Feb 2016, 12:42
Replies: 75
Views: 18,634
Posted By medviation

Wow thanks so much for the many replies! :) ...

Wow thanks so much for the many replies! :)



Good point. But I wasn't too familiar with airport pavement design. I thought if I added more wheels the distribution of weight will be spread out...
Forum: Tech Log
6th Feb 2016, 20:35
Replies: 75
Views: 18,634
Posted By medviation

Designing a very, very large airliner…

…yes it may not have much business sense right now but I had this nagging curiosity on how big airplanes can get since the flight of the A380. Yes you can say there’s no limit from a technical...
Showing results 1 to 14 of 14


 
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