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Search: Posts Made By: MaverickSu35S
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Forum: Tech Log
15th Jul 2019, 15:15
Replies: 17
Views: 5,569
Posted By MaverickSu35S

Well, first of all I should've probably said that...

Well, first of all I should've probably said that this isn't something extremely important, so I feel grateful for everyone involved, but all I needed this for is to correctly model a DC-9-32 in the...
Forum: Tech Log
15th Jul 2019, 15:07
Replies: 17
Views: 5,569
Posted By MaverickSu35S

Yeap, something like this would've been very good...

Yeap, something like this would've been very good for what I need, not necessarily a graph, but a stab trim dependency on C of G position (be it as MAC% or anything else).
Cheers!
Forum: Tech Log
15th Jul 2019, 14:47
Replies: 17
Views: 5,569
Posted By MaverickSu35S

Copy scifi, so if the horizontal axis may indeed...

Copy scifi, so if the horizontal axis may indeed refer to a longitudinal position taking the datum as reference, that may be converted into a CG position and subsequently into a MAC % position....
Forum: Tech Log
15th Jul 2019, 14:38
Replies: 17
Views: 5,569
Posted By MaverickSu35S

I totally agree with you at every line. Indeed...

I totally agree with you at every line. Indeed I've forgot that the flap/slat setting also asks for a new tab position, due to pitching moment coefficient variation from a clean wing. There is no C...
Forum: Tech Log
15th Jul 2019, 14:34
Replies: 17
Views: 5,569
Posted By MaverickSu35S

This is the only paper I've found regarding a...

This is the only paper I've found regarding a DC-9's takeoff prep! Well, in order to actually fly you may still fly even slightly outside the graph (but with greater difficulty) with whatever stab,...
Forum: Tech Log
23rd Mar 2019, 09:49
Replies: 17
Views: 5,569
Posted By MaverickSu35S

Question A DC-9-32 weight and loading chart. How to find the CG in % of MAC?

Hello,

I'm not an airline pilot therefore I have no training in using or completely understanding these types of charts. What I am looking for in this document's charts is the center of gravity...
Forum: Tech Log
23rd Mar 2019, 09:12
Replies: 195
Views: 132,829
Posted By MaverickSu35S

Question You said it well when you said: "For good or...

You said it well when you said: "For good or evil". In fact we will see that it's NOT the "good" that will win in this AI (artificial intelligence) fantasy, but the evil itself. We just had 2 awful...
Forum: Tech Log
5th Sep 2018, 20:41
Replies: 23
Views: 83,401
Posted By MaverickSu35S

Thanks you! The resulting speeds seem much closer...

Thanks you! The resulting speeds seem much closer to what would be expected for no LE/TE devices extended. Again, I couldn't find such information yet, but the result is very plausible!

Regards!
Forum: Tech Log
5th Sep 2018, 20:36
Replies: 23
Views: 83,401
Posted By MaverickSu35S

Well, in order to reduce the stall speed (thus...

Well, in order to reduce the stall speed (thus Vref and approach speed) they have 2 ways to do it (they can use one or both methods), but with subsequent structural stresses and weight penalties:
...
Forum: Tech Log
2nd Sep 2018, 10:51
Replies: 23
Views: 83,401
Posted By MaverickSu35S

Does anyone have a correct manual (I say this...

Does anyone have a correct manual (I say this because I've seen wrong data in some pdf articles where the vrefs for no LE/TE devices were abnormally low) with the stall speed (or Vref which is stall...
Forum: Tech Log
2nd Sep 2018, 10:45
Replies: 23
Views: 83,401
Posted By MaverickSu35S

No. Only the touchdown speed (if too low) affects...

No. Only the touchdown speed (if too low) affects the probability of a tail strike or a hard landing, not the approach speed. As the guys said before, the adage of knots above Vref is a wind...
Forum: Tech Log
12th Jun 2017, 05:31
Replies: 16
Views: 19,000
Posted By MaverickSu35S

Hello "gundernak", I am an aerodynamicist...

Hello "gundernak",

I am an aerodynamicist and I can confirm that a wing with an aspect ratio of around 10 which uses lightly cambered airfoils (around 2..3% camber ratio) along it's span will find...
Forum: Tech Log
4th Jun 2017, 07:14
Replies: 1,677
Views: 531,388
Posted By MaverickSu35S

This is probably the way you see it! Then who is...

This is probably the way you see it! Then who is to blame if both pilots did everything wrong with their controls? That is the pure truth and we must face it, not try to deviate it! The only 2...
Forum: Tech Log
12th Mar 2017, 18:04
Replies: 56
Views: 14,172
Posted By MaverickSu35S

Thank you! So the AFM should also tell the MTOW...

Thank you! So the AFM should also tell the MTOW in case of one engine out during the takeoff phase.

Cheers!
Forum: Tech Log
12th Mar 2017, 09:20
Replies: 56
Views: 14,172
Posted By MaverickSu35S

Pinpointed! That's what I'm looking for as well,...

Pinpointed! That's what I'm looking for as well, but the most important was: if the MD-82 would be capable of climbing out when weighing 149500lbs in 1 engine even at sea level and at no more than...
Forum: Tech Log
11th Mar 2017, 19:09
Replies: 56
Views: 14,172
Posted By MaverickSu35S

Right, I forgot about altitude, but logically...

Right, I forgot about altitude, but logically that should also be taken into account as for reducing the MTOW depending on available engine thrust for a given air density. But as you've said, for a...
Forum: Tech Log
11th Mar 2017, 14:23
Replies: 56
Views: 14,172
Posted By MaverickSu35S

Thank you very much for your replies. I didn't...

Thank you very much for your replies. I didn't know this forum already had this topic discussed, my bad I didn't do the search, but thanks again for letting me know about the regulations. The only...
Forum: Tech Log
11th Mar 2017, 08:02
Replies: 56
Views: 14,172
Posted By MaverickSu35S

Can a 2 engines plane takeoff at MTOW when 1 engine quits,or only at lower weight?

Hi,

I can't seem to find a certain answer on the internet, so I dare putting this important question here?

For example, are the 2 engine planes MTOW (maximum takeoff weight) defined or...
Forum: Tech Log
1st Mar 2017, 02:04
Replies: 20
Views: 8,135
Posted By MaverickSu35S

You're perfectly right, but still, it's better to...

You're perfectly right, but still, it's better to have slats deployed whenever needed than not, as fighter aircraft have, but as I found out about the TWA 727 accident where the slat broke loose at...
Forum: Tech Log
25th Feb 2017, 16:59
Replies: 20
Views: 8,135
Posted By MaverickSu35S

Slats deployment near critical AoA with flaps set to 0

Hello,

I am an aerospace engineer, aerodynamicist and glider pilot. We all know what the slats are there for right? For increasing the AoA (angle of attack) at which the wing meets airflow...
Showing results 1 to 20 of 20


 
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