X-Junk-Score: 0 [] X-KAS-Score: 0 [] From: "Stephen Izett stephen.izett@gmail.com" Received: from pmg.Logan.com ([207.170.160.161] verified) by logan.com (CommuniGate Pro SMTP 6.4.0) with ESMTPS id 3847718 for flyrotary@lancaironline.net; Sat, 22 Feb 2025 03:53:59 -0500 Received: from pmg.Logan.com (localhost [127.0.0.1]) by pmg.Logan.com (Proxmox) with ESMTP id B0F8A270EB for ; Sat, 22 Feb 2025 03:53:59 -0500 (EST) Received-SPF: pass (gmail.com ... _spf.google.com: Sender is authorized to use 'stephen.izett@gmail.com' in 'mfrom' identity (mechanism 'include:_netblocks.google.com' matched)) receiver=pmg.Logan.com; identity=mailfrom; envelope-from="stephen.izett@gmail.com"; helo=mail-pl1-f178.google.com; client-ip=209.85.214.178 Received: from mail-pl1-f178.google.com (mail-pl1-f178.google.com [209.85.214.178]) by pmg.Logan.com (Proxmox) with ESMTPS for ; Sat, 22 Feb 2025 03:53:59 -0500 (EST) Received: by mail-pl1-f178.google.com with SMTP id d9443c01a7336-220e989edb6so80767035ad.1 for ; Sat, 22 Feb 2025 00:53:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1740214432; x=1740819232; darn=lancaironline.net; h=message-id:in-reply-to:to:references:date:subject:mime-version:from :from:to:cc:subject:date:message-id:reply-to; bh=/+H1gXUMpQlPa9lABsT1VP1eRdY0Hkda2iO2sgwlNtk=; b=Rnl/ARqpwLOvD5YP1o4esnGZQPJZsLbOS2Ma7uqlLOys8dAeP0w/DhOHLFTs/OBN7R WPpSwhCbHgwHtCnWlp8SOIUUC3VNJ3UrEjR2dkDZfSNPUGYrWFcH416G15UOYjBK/+Md WzQuBk0GkWs0f03DcnOSpz4NjfCJUey/XqfeTiKWr+T8U6dfzQoItHdidfpKp+nDkKAE dV22bXhv7LaQW6tC3/YK13J5CoiEw35Vkp5KTkufcz7PkF6kCEpeHXAXOVTh1jZmhueS 6rAqgXcLnr6wbMbk+7uSDihkDUOHIuug94pA8WMS832dVyWSu8fy6a0iXT/BO+2aJg8t 6cag== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1740214432; x=1740819232; h=message-id:in-reply-to:to:references:date:subject:mime-version:from :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=/+H1gXUMpQlPa9lABsT1VP1eRdY0Hkda2iO2sgwlNtk=; b=TiT279pw7qteKWdnofMCCUvnmPIxBO1h2wSXVGhU8Q1aCJBsAjE5b73gbUGsLmgNAO x+4cxXJ4YZzS+QW6K/JMKeUxyZnOul3TKdN4Q4YHNHmIuJOpBD/+hE60VTkhuopY6MCG 2XEV5cDv90bcgxDa4WwHCWglfgLcWO0bZN1YaGpR5s61P7g0QB3mCzSGyKqt/AjVzM8d pkurjmugba3FUISjyKyUIB7CHFxssnNTmhIDVxKdhRXxMALbhFIMrEWLmtO2S82SDUGZ tGmm/dXBoJFgTwslzxX7nrPjWkj1pw3A4VU7wviLtFn8OKYk+qk/wX8hz4dO2ii85FNf v9Ow== X-Gm-Message-State: AOJu0Yz2oqE3hRi279ORaNJQBeUpXhMBP/q+Ct3wMpQByfJO0hcEKsoh vAVU3VHYkV9ZKBuNSDVvEOflZ5Ff0zTYnjKzrwqtfTanEBEcF040C6/B8A== X-Gm-Gg: ASbGncuQp97MrlsDYAtyAJcWpJLhFkPkNy/Lb0pPx4g+pqfUVHePmPDAIojRZsrdkfx QIFNccEYJwtqZ1j74r8fDjsED5QB3MKutwvANLSeNK+FfKzVgeC1zyZEF3Ox16q/a03QEqR7mP2 sxR/ObcLJUSNH2Ly5nSc4+GKMHwsrBD03jCTJLPGcqMuycWtxZWNePlx8ZbIA0KwzdhvxHiwUeK mSjBk9whMmqZoSyHv8GaILDRjC7mUknwJfdnXYi05K2a4+KsmW/z9sHmaQGF5Jtqb9NZ2E1svzo 4Aji1NIN3rKhCCjI7HghtCD9WfhOw7JyhJqQcDvBsxSwkNXjxNFXW+QMOMM= X-Google-Smtp-Source: AGHT+IHXFHxw+GaY19j5MMfa4b1m7DYNp6PtedFj4csNoRUSJ0LLme0vHtnANnKeVQAzoUvyVJmOIg== X-Received: by 2002:a17:902:ce87:b0:220:d28a:c5c7 with SMTP id d9443c01a7336-2219ff56659mr103497945ad.21.1740214431631; Sat, 22 Feb 2025 00:53:51 -0800 (PST) Received: from smtpclient.apple ([2001:8003:8809:4a00:5054:ad9e:cc19:9cc6]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-220d5367e97sm147673625ad.61.2025.02.22.00.53.50 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sat, 22 Feb 2025 00:53:51 -0800 (PST) Content-Type: multipart/alternative; boundary="Apple-Mail=_D20B65D5-BF8C-4684-A6DB-9E895968E4B7" Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3826.200.121\)) Subject: Re: [FlyRotary] Fuel injection Diagram Date: Sat, 22 Feb 2025 16:53:37 +0800 References: To: Rotary motors in aircraft In-Reply-To: Message-Id: <5FA0FF6D-7A85-4047-9508-9FCB78392D54@gmail.com> X-Mailer: Apple Mail (2.3826.200.121) X-SPAM-LEVEL: Spam detection results: 0 AWL -0.710 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DKIM_SIGNED 0.1 Message has a DKIM or DK signature, not necessarily valid DKIM_VALID -0.1 Message has at least one valid DKIM or DK signature DKIM_VALID_AU -0.1 Message has a valid DKIM or DK signature from author's domain DKIM_VALID_EF -0.1 Message has a valid DKIM or DK signature from envelope-from domain DMARC_PASS -0.1 DMARC pass policy FREEMAIL_FROM 0.001 Sender email is commonly abused enduser mail provider FREEMAIL_REPLY 1 From and body contain different freemails HTML_MESSAGE 0.001 HTML included in message KAM_MXURI 1.5 URI begins with a mail exchange prefix, i.e. mx.[...] RCVD_IN_DNSWL_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to DNSWL was blocked. 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See http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block for more information. [lancaironline.net,flyrotary.com] WEIRD_PORT 0.001 Uses non-standard port number for HTTP --Apple-Mail=_D20B65D5-BF8C-4684-A6DB-9E895968E4B7 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hi Le Roux Your gut is correct, the Glasair has a single tip to tip main wing tank = with flapper values to keep fuel somewhat balanced across the tank. Yes, the facet pumps (two in series - main and backup) pump the main = wing fuel into the header that then overflows back into the centre of = the main tank. So all fuel is continuously being circulated through the main filter = into the header and back again. There is no fuel tank selection.=20 During my preflight walk around I always check the header tank is full. I have a microcontroller I call my =E2=80=98CoPilot' managing a series = of things onboard. Two of those functions are: 1. Automatically sense a drop in Fuel Pressure at the engine fuel rail = and switch on the backup engine fuel pump. 2. Automatically sense a drop in Fuel Transfer between wing and header = and switch on backup transfer pump. Both these Automatic Backups are checklist tested before flight. a. Turn OFF main fuel pump, backup activates so engine continues = to run, and CoPilot LED changes from Solid to Flashing indicating the = backup has been triggered. While IAS below ~60 Knots(as in we're not flying) by pressing = the CoPilot BUTTON, the system is reset/rearmed. b. Turn OFF main transfer pump=E2=80=A6. Same processs as above. These system tests take about 5 seconds to carry out and are done after = startup along with testing computer B and Coils. (Tracy=E2=80=99s EC2) There is also capacitive senders in the tanks with alarms.=20 If the header tank level drop below near full, I get an audible voice = alarm, and if the transfer flow drops I get an audible voice alarm which = means I either have a transfer pump failure or the Wing tank just = emptied leaving me on my header tank reserve of 28L Steve > On 22 Feb 2025, at 4:17=E2=80=AFpm, Le Roux Breytenbach = breytenbachleroux@gmail.com wrote: >=20 > Thanks guys for all your inputs much appreciated.=20 > Stephen so there is no fuel selection from one tank to the other in = your set up.? Or do you select left or right tank with faset pumps for = each wingtank ? > 152 L seems to me are both wings together as i have also a composite = wing.. > The header tank flow back to only one wingtank or both ?=20 >=20 > Regards Le Roux >=20 >=20 >=20 >=20 >=20 >=20 > On Sat, Feb 22, 2025 at 8:57=E2=80=AFAM Stephen Izett = stephen.izett@gmail.com = > = wrote: >> Hi LeRoux >>=20 >> Here is my setup >>=20 >> Steve Izett >> Glasair Super IIRG >>=20 >>=20 >>=20 >> > On 22 Feb 2025, at 12:14=E2=80=AFam, Le Roux Breytenbach = breytenbachleroux@gmail.com = > = wrote: >> >=20 >> > Hi : Do somebody have a schematic drawing ? Of a typical low wing = experimental aircraft fuel system to the 13B. >> > Can=E2=80=99t find good detail info. >> > The feed from the wings to the high pressure fuelpumps. >> > Where to place the low pressure fuel pumps and then to fuel = injection pumps. >> > Must i do a header tank ? or not.Must the high pressure pumps be = inside or outside on the firewall? >> >=20 >> > Regards Le Roux >> >=20 >> > Sent from my iPhone >> > Le Roux Breytenbach=20 >> >=20 >> > -- >> > Homepage: http://www.flyrotary.com/ >> > Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html >>=20 >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html --Apple-Mail=_D20B65D5-BF8C-4684-A6DB-9E895968E4B7 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Hi Le = Roux

Your gut is correct, the Glasair has a single tip to = tip main wing tank with flapper values to keep fuel somewhat balanced = across the tank.
Yes, the facet pumps (two in series - main = and backup) pump the main wing fuel into the header that then overflows = back into the centre of the main tank.
So all fuel is = continuously being circulated through the main filter into the header = and back again.
There is no fuel tank = selection. 
During my preflight walk around I always = check the header tank is full.

I have a = microcontroller I call my =E2=80=98CoPilot' managing a series of things = onboard.
Two of those functions are:
1. = Automatically sense a drop in Fuel Pressure at the engine fuel rail and = switch on the backup engine fuel pump.
2. Automatically sense = a drop in Fuel Transfer between wing and header and switch on backup = transfer pump.
Both these Automatic Backups are checklist = tested before flight.
a. Turn OFF main fuel pump, = backup activates so engine continues to run, and CoPilot LED changes = from Solid to Flashing indicating the backup has been = triggered.
While IAS below ~60 Knots(as in = we're not flying) by pressing the CoPilot BUTTON, the system is = reset/rearmed.
b. Turn OFF main transfer = pump=E2=80=A6. Same processs as above.
These system tests take = about 5 seconds to carry out and are done after startup along with = testing computer B and Coils. (Tracy=E2=80=99s = EC2)

There is also capacitive senders in the = tanks with alarms. 
If the header tank level drop below = near full, I get an audible voice alarm, and if the transfer flow drops = I get an audible voice alarm which means I either have a transfer pump = failure or the Wing tank just emptied leaving me on my header tank = reserve of = 28L

Steve








On 22 Feb 2025, at 4:17=E2=80=AFpm, Le Roux = Breytenbach breytenbachleroux@gmail.com = <flyrotary@lancaironline.net> wrote:

Thanks guys = for all your inputs much appreciated. 
Stephen so there is no = fuel selection from one tank to the other in your set up.? Or = do you select left or right tank with faset pumps for each = wingtank ?
152 L seems to me are both wings together as i = have also a composite wing..
The header tank flow back to = only one wingtank or both ? 

Regards = Le = Roux





<= /div>

On Sat, Feb 22, 2025 at 8:57=E2=80=AFAM Stephen = Izett stephen.izett@gmail.com <flyrotary@lancaironline.net> = wrote:
Hi LeRoux

Here is my setup

Steve Izett
Glasair Super IIRG



> On 22 Feb 2025, at 12:14=E2=80=AFam, Le Roux Breytenbach breytenbachleroux@gmail.com <flyrotary@lancaironline.net> wrote:
>
> Hi : Do somebody have a schematic drawing ? Of a typical low wing = experimental aircraft fuel system to the 13B.
> Can=E2=80=99t find good detail info.
> The feed from the wings to the high pressure fuelpumps.
> Where to place the low pressure fuel pumps and then to fuel = injection pumps.
> Must i do a header tank ? or not.Must the high pressure pumps be = inside or outside on the firewall?
>
> Regards Le Roux
>
> Sent from my iPhone
> Le Roux Breytenbach
>
> --
> Homepage:  http://www.flyrotary.com/
> Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.ht= ml

--
Homepage:  http://www.flyrotary.com/
Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.ht= ml

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