X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imr-db03.mx.aol.com ([205.188.91.97] verified) by logan.com (CommuniGate Pro SMTP 6.0.4) with ESMTP id 6190623 for lml@lancaironline.net; Tue, 09 Apr 2013 11:58:14 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.91.97; envelope-from=Sky2high@aol.com Received: from mtaomg-da03.r1000.mx.aol.com (mtaomg-da03.r1000.mx.aol.com [172.29.51.139]) by imr-db03.mx.aol.com (Outbound Mail Relay) with ESMTP id 54DD83800017A for ; Tue, 9 Apr 2013 11:57:39 -0400 (EDT) Received: from core-mtd005b.r1000.mail.aol.com (core-mtd005.r1000.mail.aol.com [172.29.235.209]) by mtaomg-da03.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id 09FC8E000089 for ; Tue, 9 Apr 2013 11:57:39 -0400 (EDT) From: Sky2high@aol.com Full-name: Sky2high Message-ID: Date: Tue, 9 Apr 2013 11:57:38 -0400 (EDT) Subject: Re: [LML] Slope of Hangar Apron To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_d193c.47df36c3.3e959472_boundary" X-Mailer: AOL 9.6 sub 168 X-Originating-IP: [67.175.156.123] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20121107; t=1365523059; bh=fixIYVK31+SomRx862oM7z/mNbeChFqPu4H03LVqruY=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=oePBldeYK/0abpShSjZmyia7xHZ2a8ZzumqmxBKquhC81vdysWzlxG9VD0fjm+eAO MDzJiEGbOYrXBCdrHMJEqEX91w0dDWzRpsHY3uAjryBAqnD6bKzP7eDep0f3Yu5Pmc OJyDC0NvRC0UaFA2Fsrk8/LsDLDCMl84GDCAbUo4= X-AOL-SCOLL-SCORE: 0:2:502394176:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d338b51643a73571e --part1_d193c.47df36c3.3e959472_boundary Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Content-Language: en Mike, =20 The prep of the ground upon which the hangar is built is crucial. Make=20 sure there is a good vapor barrier betwixt the ground and the slab. Consi= der=20 if you will have hydraulic pressure issues because of surrounding ground= =20 if that ground is at a higher level. Consider french drains to storm drai= ns=20 in order to keep land under pavement relatively well drained. Consider a= =20 concrete apron (4'-8' ) between the hangar floor and the asphalt ramp as a= =20 heated hangar has peculiar properties up to about 15 inches from the slab= =20 because of hangar heating induced probllems (freeze - thaw cycles are brut= al=20 near the heated hangar. Consider adequate overhang (eaves) of the roof=20 because of melting snow/ice that will befoul the area below the drip line = and=20 in front of the door.. Consider a gutter just in the area above the=20 man-door. =20 Consider the angle from the door to the ramp for drainage and the ability = =20 to roll the airplane in - but note that areas to the side of where the =20 plane will roll can be steeper to take water away. ETC. Remember that as= phalt=20 allows water to penetrate. Water is the bane and an enigma wrapped up=20 inside a puzzle. =20 How do I know? I am a consultant that helps operate Sky Haven - =20 _www.skyhaven.com_ (http://www.skyhaven.com) =20 =20 Scott Krueger =20 =20 =20 In a message dated 4/9/2013 9:48:02 A.M. Central Daylight Time, =20 mdpilot982@gmail.com writes: =20 Listers,=20 This may seem like a random question, but potentially I am building a=20 hangar on a lot that has a water drainage issue with taxiway runoff. The= =20 building needs to be elevated, not a big deal, but that slopes the apron l= eading=20 to the taxiway. Does anyone know if there=E2=80=99s a code value for the = slope,=20 i.e. a 1% grade, or some other rule of thumb as to what may constitute too= =20 steep of a grade, i.e., so steep that pushing the plane up would be too mu= ch=20 or so steep the plane would roll uncontrollable down if one is moving it= =20 by hand? Any insights would be appreciated.=20 Michael Smith --part1_d193c.47df36c3.3e959472_boundary Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Content-Language: en
Mike,
 
The prep of the ground upon which the hangar is built is crucial. = ;=20 Make sure there is a good vapor barrier betwixt the ground and the=20 slab.  Consider if you will have hydraulic pressure issues because of= =20 surrounding ground if that ground is at a higher level.  Con= sider=20 french drains to storm drains in order to keep land under pavement=20 relatively well drained.  Consider a concrete apron (4'-8' ) betw= een=20 the hangar floor and the asphalt ramp as a heated hangar has peculiar prope= rties=20 up to about 15 inches from the slab because of hangar heating induced=20 probllems (freeze - thaw cycles are brutal near the heated hangar.&nbs= p;=20 Consider adequate overhang (eaves) of the roof because of melting snow/ice= =20 that will befoul the area below the drip line and in front of the=20 door..  Consider a gutter just in the area above the man-door.
 
Consider the angle from the door to the ramp for drainage and the abil= ity=20 to roll the airplane in - but note that areas to the side of where the= =20 plane will roll can be steeper to take water away.  ETC.  Remembe= r=20 that asphalt allows water to penetrate.  Water is the bane and an enig= ma=20 wrapped up inside a puzzle.
 
How do I know?  I am a consultant that helps operate Sky Hav= en -=20 www.skyhaven.com
 
Scott Krueger
 
 
In a message dated 4/9/2013 9:48:02 A.M. Central Daylight Time,=20 mdpilot982@gmail.com writes:
=

Listers,<= /FONT>

 

This may seem like a random= =20 question, but potentially I am building a hangar on a lot that has a wate= r=20 drainage issue with taxiway runoff.  The building needs to be elevat= ed,=20 not a big deal, but that slopes the apron leading to the taxiway.  D= oes=20 anyone know if there=E2=80=99s a code value for the slope, i.e. a 1% grad= e, or some=20 other rule of thumb as to what may constitute too steep of a grade, i.e.,= so=20 steep that pushing the plane up would be too much or so steep the plane w= ould=20 roll uncontrollable down if one is moving it by hand?  Any insights = would=20 be appreciated.

 

Michael=20 Smith

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