REFLECTOR: MT burned out pickup - fly?
Jim & Sharon Beck
jsbeck618 at gmail.com
Fri Jun 10 11:02:37 CDT 2011
Hi Sid,
Same results for me, I was at 12000, 45 minutes from home> I turned around
and with the prop going towards flat pitch I essentially had an extended
glide with reducing power all the way to keep from overspeeding. I lost
about 5000 feet over the trip home and arrived with 3000 feet altitude
remaining.
My failure was the Motor controlling pitch, replaced with a newer style
motor that required new mounting system.
Jim
On Fri, Jun 10, 2011 at 8:18 AM, Dave T Nelson <dtnelson at us.ibm.com> wrote:
> Hi Sid,
>
> As I said in my other post, I don't think it's a good idea to fly... having
> done it, there is risk.
>
> If Andy's brush block is burned out, he won't be able to control the prop
> in manual mode.
>
> My experience was pretty much directly applicable. The prop does not stay
> where it was left for long... it starts to feather... RPM (and temperatures)
> go up, and thrust goes down... eventually forcing a landing, since as the
> prop feathers and thrust decreases, eventually you don't have enough thrust
> even at redline RPM to stay in the air.
>
> I made a bad decision trying to ferry my plane home in this condition... I
> wouldn't recommend it to anyone.
>
> Dave
>
> Dave T. Nelson
> T/L 553-4327, Voice 507-253-4327, Fax 507-253-3648
> Program Director, ISC ECAT NPI & Test Engineering
>
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> 06/10/2011 09:10 AM
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> Subject:
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> Reflector Digest, Vol 75, Issue 53
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> Sent by:
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> Today's Topics:
>
> 1. Re: MT elcoprop - burned out pickup - fly? (sbjknox)
> 2. Re: Hats (Bob Jackson)
> 3. Re: Fuel Sight Gauges (Scott Derrick)
>
> ----- Message from "sbjknox" <sbjknox at earthlink.net> on Fri, 10 Jun 2011
> 07:55:05 -0500 -----
> *To:*
> "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
> *Subject:*
> Re: REFLECTOR: MT elcoprop - burned out pickup - fly?
>
> ----- Original Message -----
> From: "Andrew Judge" <ajudge at grovenetworks.com>
> Subject: REFLECTOR: MT elcoprop - burned out pickup - fly?
>
>
> > I've got my second burned out brush block after about 230 hours on it.
> > It's stuck in a fixed position. I was wondering if anyone has flown one
> > fixed
> > like this until they were able to get a new brush block. Seems to be ok
> > flying.
> > Attached is the picture of it at 5000 and I got a static of 2580. I've
> got
> > to get to MA...
>
> > Andy
>
> Hi Andy,
> I began having trouble with the MT prop controller on my Velocity the first
>
> day I owned it and was flying it home from FL. This was an intermittent
> problem and it almost made me crazy trying to figure out the cause. I would
>
> remove the top cowling and began troubleshooting and suddenly it would
> start
> working. Then be ok for a few minutes or a few hours and fail again.
> On mine, the brush block was mounted on an aluminum bracket with only one
> mounting point to the engine. This allowed for excessive movement out at
> the end where the brush block was located causing poor contact with the
> slip-rings and wearing the brushes unevenly.
> I bought a new brush block and modified the mounting so as to be more
> rigid.
> This was about nine years ago and operation has been proper since.
> My controller has two switches... one to select 'Auto/Manual' and the other
>
> to raise/lower the rpm when running in Manual mode. And of course, the knob
>
> (pot) to set the rpm in Auto. And a light to show when the prop is at the
> max-rpm limit-stop. One can easily fly the plane in Manual mode... just be
> careful on takeoff (full power) not to over-rev the engine.
>
> Sid Knox
> Oklahoma
>
> Velocity 173 RG N199RS
> Starduster N666SK
> KR2 N24TC
> W7QJQ
>
>
>
>
> ----- Message from "Bob Jackson" <bobj at computer.org> on Fri, 10 Jun 2011
> 09:54:13 -0400 -----
> *To:*
> "'Velocity Aircraft Owners and Builders list'" <reflector at tvbf.org>
> *Subject:*
> Re: REFLECTOR: Hats
> Nice hats!
> ------------------------------
> *From:* reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org<reflector-bounces at tvbf.org>]
> *On Behalf Of *John Abraham*
> Sent:* Monday, June 06, 2011 8:50 AM*
> To:* reflector at tvbf.org*
> Subject:* REFLECTOR: Hats
>
> All of you who ordered hats and did not receive them yet I am sorry for the
> delay. I ran out of boxes to ship them and they just arrived Friday. They
> will be completed going out this week.
>
> Thanks,
> *John Abraham*
> *Chief Pilot; Executive V.P. Sales and Marketing*
> **
> [image: velocity-logo]
> *P: (772) 589-1860 200 W. Airport Dr.*
> *F: (772) 589-1893 Sebastian, FL 32958*
> *www.velocityaircraft.com*
> **
>
> ----- Message from Scott Derrick <scott at tnstaafl.net> on Fri, 10 Jun 2011
> 08:03:01 -0600 -----
> *To:*
> Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
> *Subject:*
> Re: REFLECTOR: Fuel Sight Gauges
> I made two balls out of micro.
>
> -------- Original Message --------
> Subject: Re: REFLECTOR: Fuel Sight Gauges
> From: Rene Dugas *<dugasd at bellsouth.net>* <dugasd at bellsouth.net>
> To: 'Velocity Aircraft Owners and Builders list' *<reflector at tvbf.org>*<reflector at tvbf.org>
> Date: 06/09/2011 05:32 PM
>
> Brian,
> What kind of red ball? I use a cork ball but don’t like the look.
> Clipped the hook off a Popping Bug (dry fly fishing lure) also but it scared
> the young Eagles with the Eyes and all.
> Rene’
>
> *From:* *reflector-bounces at tvbf.org* <reflector-bounces at tvbf.org> [*
> mailto:reflector-bounces at tvbf.org* <reflector-bounces at tvbf.org>] *On
> Behalf Of *Brian Michalk*
> Sent:* Thursday, June 09, 2011 2:31 PM*
> To:* Velocity Aircraft Owners and Builders list*
> Subject:* Re: REFLECTOR: Fuel Sight Gauges
>
> I'm using that Tygon from McMaster.
>
> I do have fuel in the tanks, and the yellow color is not that big of a
> problem. They have been in fuel for less than a year, so I can't comment on
> durability.
>
> I have a strip of electroluminescent light behind mine, and a floating
> red ball.
>
> On 6/9/2011 2:06 PM, Tom Falls wrote:
> For those using Tygon tubing AND auto fuel, are you just getting the
> tubing from a big box lumber store or are you ordering a special type? I
> have learned there many formulations *
> http://www.tygon.com/tygon-traditional-tubing.aspx*<http://www.tygon.com/tygon-traditional-tubing.aspx>
> Anybody using Tygon F-4040 (made for fuel use)? How easy is it to
> see the fuel level? *http://www.mcmaster.com/#5552k32/=cobblm*<http://www.mcmaster.com/#5552k32/=cobblm>.
> It’s only available as semi-clear yellow. I’m hoping others are having
> reasonable success with something clear.
>
> Tom
>
>
> *From:* Tom Falls [*mailto:tomfalls6 at gmail.com* <tomfalls6 at gmail.com>]
> *
> Sent:* Wednesday, June 08, 2011 10:18 PM*
> To:* 'Velocity Aircraft Owners and Builders list'*
> Subject:* RE: REFLECTOR: Fuel Sight Gauges
>
> Thanks Kurt . . . I like simple!! As an improvement I think I’ll see if
> I can find a good clear hard tube that is slightly larger diameter than the
> tygon to protect it from accidental damage. I’m with Brett and Jim. The
> tygon by itself makes me nervous. I think your cover provides some
> protection, but for my comfort it needs a little more.
>
> Tom
>
> *From:* *reflector-bounces at tvbf.org* <reflector-bounces at tvbf.org> [*
> mailto:reflector-bounces at tvbf.org* <reflector-bounces at tvbf.org>] *On
> Behalf Of **nmflyer1 at aol.com* <nmflyer1 at aol.com>*
> Sent:* Wednesday, June 08, 2011 6:51 PM*
> To:* *reflector at tvbf.org* <reflector at tvbf.org>*
> Subject:* Re: REFLECTOR: Fuel Sight Gauges
>
> Tom,
>
> Ridiculously simple really. I have the stock elbows and tygon tubing.
> Tubing clamps are the low profile plastic ones that lock/ratchet together
> when squeezed.
>
> To make the covers: I found PVC pipe that was about the right diameter
> to give me room to cover the sight gauges, then cut it to the length needed.
> Then I just laid it up on a bench using the PVC as a dummy form.
>
> Once done, I did the usual release & sand.
>
> Painting: I went to Home depot with a sample of my material that I
> wanted to match. They made me a very good match in one of their sample latex
> packs (bout a pint). Sprayed it with an airbrush. Cost: $1.99. Matches
> great and I have used that for areas around the door pins, covers, etc. Once
> done and labeled, you can hit it with a coat of clear to lock in the labels
> & gloss it up a bit if you like.
>
> Ways to hold them in place: Dab of silicone (clean well before hand).
> or Velcro.
>
> I have LED lighting in the top of the baggage area shining down. That
> gives plenty of non-glaring light to see the tubes.. also makes it easy to
> load the aircraft without powering it up (runs directly off 1 battery thru a
> 1A fuse).
>
> Hope that helps. Kurt
>
> -----Original Message-----
> From: Tom Falls *<tomfalls6 at gmail.com>* <tomfalls6 at gmail.com>
> To: 'Velocity Aircraft Owners and Builders list' *<reflector at tvbf.org>*<reflector at tvbf.org>
> Sent: Wed, Jun 8, 2011 3:50 pm
> Subject: Re: REFLECTOR: Fuel Sight Gauges
> Kurt,
> Your installation looks fantastic and would work great for me. Can you
> share more detail about the construction including tubing material and the
> type of tubing clamps you used?
>
> Thanks much,
> Tom
>
> *From:* *reflector-bounces at tvbf.org* <reflector-bounces at tvbf.org> [*
> mailto:reflector-bounces at tvbf.org* <reflector-bounces at tvbf.org?>] *On
> Behalf Of **nmflyer1 at aol.com* <nmflyer1 at aol.com>*
> Sent:* Tuesday, June 07, 2011 7:24 PM*
> To:* *reflector at tvbf.org* <reflector at tvbf.org>*
> Subject:* Re: REFLECTOR: Fuel Sight Gauges
>
> Tom,
>
> Here is how I did mine. I have not labeled them yet since I haven't
> done the W&B with fuel loading. Copy & paste if the links do not work.
>
> *http://tinypic.com/r/2441biw/7* <http://tinypic.com/r/2441biw/7>
>
>
> *http://tinypic.com/r/121qtxw/7 *<http://tinypic.com/r/121qtxw/7%C2%A0>
> ;
>
>
>
>
>
> Kurt
>
> -----Original Message-----
> From: Tom Falls <*tomfalls6 at gmail.com* <tomfalls6 at gmail.com>>
> To: Velocity Aircraft Owners and Builders list <*reflector at tvbf.org*<reflector at tvbf.org>
> >
> Sent: Tue, Jun 7, 2011 8:53 am
> Subject: Re: REFLECTOR: Fuel Sight Gauges
> I guess I missed that. I do plan on using auto fuel, so it's the
> factory design for me.
>
> For those with the factory style sight gauges, could please send
> pictures of how you did the interior around them to make them more pleasing
> to the eye?
>
> Thanks much,
> Tom
> On Mon, Jun 6, 2011 at 5:00 PM, vance atkinson <*nostromo56 at tx.rr.com*<nostromo56 at tx.rr.com>>
> wrote:
> On 6/5/2011 12:45 AM, Al Gietzen wrote:
> As I’ve mentioned previously; if you intend to use auto fuels, don’t
> use the Atkinson gauge. The white plastic background material is not
> compatible – unless it has been changed within the past couple of years.
>
> Al
>
> -----Original Message-----*
> From:* *reflector-bounces at tvbf.org* <reflector-bounces at tvbf.org> [*
> mailto:reflector-bounces at tvbf.org* <reflector-bounces at tvbf.org>] *On
> Behalf Of *Tom Falls*
> Sent:* Saturday, June 04, 2011 6:11 AM*
> To:* 'Velocity Aircraft Owners and Builders list'*
> Subject:* REFLECTOR: Fuel Sight Gauges
>
> On the topic of sight gauges (from Low fuel warning thread), I've
> heard rumblings of issues with the Atkinson gauges. I'm getting ready to
> install them. What are the watch-outs and/or improvements to make sure they
> remain effective and useful for the life of the plane? Or is it a matter of
> avoiding certain fuels?
>
> Tom
>
>
> They are not approved for auto fuel anymore and for the past several
> years the mfgs have been putting things in the fuel (and not telling the
> public) that can make the gauges crack and also soften. The gauges are
> certainly NOT to be used with ethanol. I just use Av gas in my COZY, and
> for 25 years have had NO problems.
>
> I usually tell builders if you HAVE to use auto fuel (no ethanol in
> it) then put it the tank and use it up right away on your flight. don't let
> it sit there for a month.
>
> Vance Atkinson
> EAA Tech and Flt Advisor
>
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