PPRuNe Forums - View Single Post - USA Army Airship for Afghanistan ISR
View Single Post
Old 6th Jul 2010, 17:54
  #64 (permalink)  
The B Word
 
Join Date: Jul 2009
Location: Uranus
Posts: 963
Received 11 Likes on 9 Posts
Right, just to finish off the "there's no wind in Afghanistan" debate, I've been to the Met Off and got the following data from their MIDAS database on average wind speeds:

Location: KANDAHAR
Lat/Long: 3133N 06551E
Elevation: 1010 Metres

300MB/30000ft

Month Wind(Kts) Temperature(C)
Jan 270/60 -41.3
Feb 270/63 -39.8
Mar 270/51 -39.7
Apr 270/41 -37.9
May 270/41 -34.5
Jun 270/28 -26.3
Jul 270/14 -23.5
Aug 270/16 -24.5
Sep 270/24 -28.1
Oct 270/44 -34.5
Nov 270/51 -39.3
Dec 270/52 -39.9

Now these are "average winds", so I'm expecting about +/- 30kts on a daily basis as the normal for these wind ranges over the 28-31 day months. Also, as I stated before, "the 'Seistan' or 'the winds of 120 days' that can blow up to 100mph for up to 4 months between May and Sep in Eastern Iran and South West Afghanistan, all at ground level", will account for the months of May to Sep when the wind isn't blowing at height.

Luckily for the Americans they have much money to waste on this, which is another mad-cap and already proven unwise venture such as this. We, however, in the UK do not. I understand that Mr Gerald Howarth MP may have been already been briefed on the HAV/LEMV and been given the Company "Sales Pitch" (which gets the wind prediction quite wrong or ignores them!). If that is true, then please Minister, leave this scheme well alone as there is a long and distinguished line of others that have been taken in by the airship notion over the past 40 years.

Sorry to resurrect the thread but it has taken a while to get the stats from the Met Off.

"Tenacious, Moi?"

The B Word
The B Word is offline