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Search: Posts Made By: upsangel
Showing results 1 to 9 of 9
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Forum: Rotorheads
31st Jul 2012, 02:23
Replies: 9
Views: 17,051
Posted By upsangel

Dear FairWeatherFlyer: I have collected 20nos of...

Dear FairWeatherFlyer: I have collected 20nos of news like this, helps a lot to get the initial idea whether it should be billion/million or k scale.
Forum: Rotorheads
31st Jul 2012, 02:15
Replies: 9
Views: 17,051
Posted By upsangel

Savoia: Thx again! I should have no problem to...

Savoia: Thx again! I should have no problem to estimate the civil construction cost according to the site conditions, the hanger part should be ok too, the headache is the avionics part (I am not a...
Forum: Rotorheads
30th Jul 2012, 08:00
Replies: 9
Views: 17,051
Posted By upsangel

hi Saint Jack: thanks for your advice. i think...

hi Saint Jack: thanks for your advice.
i think my study is on the "expensive side" because the proposal is for the gov(pbulic), and i think its reliability should be robust (for rescue and...
Forum: Rotorheads
30th Jul 2012, 07:41
Replies: 9
Views: 17,051
Posted By upsangel

yes, it needs breakdown

Savoia: thank you for your advice, I understand a wild and genuine guess is most difficult, you idea on the different variable should be the road from gestimation to estimation.
Forum: Engineers & Technicians
30th Jul 2012, 02:09
Replies: 4
Views: 2,957
Posted By upsangel

How much does a heliport cost?

Hi everyone,

I m doing a research on the cost of a new heliport. I found some digits on internet:

UK - Cardiff Heliport - 3.8m GBP

USA - San Fransicisco G. Hospital Heliports - 3m USD

UK...
Forum: Rotorheads
30th Jul 2012, 01:36
Replies: 9
Views: 17,051
Posted By upsangel

How much does a heliport cost?

Hi everybody,
i m doing a research on the cost of a new heliport, I found some digits on internet but they have a too wide spectrum:

USA: San Francisco G. Hospital - 3m USD
UK: cardiff heliport...
Forum: Tech Log
23rd Apr 2012, 08:19
Replies: 11
Views: 2,191
Posted By upsangel

reframing the question to be easier to understand

I should re-phrase the question like this:
the DHL is flying absolutely to the EAST
the FEX is flying absolutely to the WEST
they are at the same altitude,
horizontal separation is 1.1nm

any...
Forum: Tech Log
19th Apr 2012, 08:56
Replies: 11
Views: 2,191
Posted By upsangel

thanks rudderrudderrat for your quick reply! ...

thanks rudderrudderrat for your quick reply!

I also read "Then the TCAS computes the intruder trajectory, the Closest Point of Approach (CPA) and the estimated time (TAU) before reaching the CPA"...
Forum: Tech Log
19th Apr 2012, 03:58
Replies: 11
Views: 2,191
Posted By upsangel

TCAS II: two tread detection logics, which one is true?

I currently doing some research works on the TCAS, the references online is quite unclear about its working logic, lets assume:

DHL and FEX are flying in parallel, @same height, horizontal...
Showing results 1 to 9 of 9


 
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