Today's Message Index:
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1. 08:14 AM - Flap attachment? (Alf Olav Frog)
2. 08:38 AM - Re: Flap attachment? (Dan Checkoway)
3. 08:41 AM - Re: Flap attachment? (Hinde, Frank George (Corvallis))
4. 10:02 AM - Re: Pitot tube? (Brad Gould)
Message 1
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| Subject: | Flap attachment? |
Hi fellow builders!
We've just started working on QB-wings now, and I saw in the manual that there
were two metods of mounting the flap hinge.
One was drilling a hole in the inboard aileron bracket, the other one was cutting
the hinge in half.
Is there a metod that is preferred over the other by you people out there?
By the way; thank you for all the inputs regarding my question about heated pitot
tube!
I've gotten alot of ideas and thougts!
Bets regards Alf Olav Frog
Message 2
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| Subject: | Re: Flap attachment? |
--> RV7-List message posted by: "Dan Checkoway" <dan@rvproject.com>
Go with the split pin, installed from the center. You'll thank me later.
)_( Dan
RV-7 N714D (812 hours)
http://www.rvproject.com
----- Original Message -----
From: "Alf Olav Frog" <alfolavf@online.no>
Sent: Thursday, February 09, 2006 8:11 AM
Subject: RV7-List: Flap attachment?
>
> Hi fellow builders!
>
> We've just started working on QB-wings now, and I saw in the manual that
> there were two metods of mounting the flap hinge.
> One was drilling a hole in the inboard aileron bracket, the other one was
> cutting the hinge in half.
>
> Is there a metod that is preferred over the other by you people out there?
>
> By the way; thank you for all the inputs regarding my question about
> heated pitot tube!
> I've gotten alot of ideas and thougts!
>
>
> Bets regards Alf Olav Frog
>
Message 3
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| Subject: | Flap attachment? |
--> RV7-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
I drilled the hole but decided I didn't like it so went with the center
eyelet removed method...It will be a lot easier to remove a flep if you
ever had to this way.
Frank
RV7a, final engine connections...then paint!
-----Original Message-----
From: owner-rv7-list-server@matronics.com
[mailto:owner-rv7-list-server@matronics.com] On Behalf Of Alf Olav Frog
Sent: Thursday, February 09, 2006 8:12 AM
Subject: RV7-List: Flap attachment?
Hi fellow builders!
We've just started working on QB-wings now, and I saw in the manual that
there were two metods of mounting the flap hinge.
One was drilling a hole in the inboard aileron bracket, the other one
was cutting the hinge in half.
Is there a metod that is preferred over the other by you people out
there?
By the way; thank you for all the inputs regarding my question about
heated pitot tube!
I've gotten alot of ideas and thougts!
Bets regards Alf Olav Frog
Message 4
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Remember that your airspeed is one of the most important instruments in unusual
attitude recovery. It's even more critical if you're iced up, since your stall
speeds will go up by an undetermined amount, Vy and Vx will change too, as
will your power required to stay level/climb/etc., so your normal power/attitude/configuration
settings won't be very reliable. Also, you certainly don't want
to mess around too much with flaps if iced up, lest you tempt a tail stall.
Re GPS as a substitute for airspeed, icing is most likely when you have vertical
air currents. Windy, turbulent days, when they're IMC, can have a bunch of
fast accumulating ice. These are the days in which ground speed is at its poorest
as a substitute for airspeed. In a Mooney, on a winter's day with strong
mountain waves, I was cruising at an average of 160 KTAS, but having to "climb"
and "descend" through the waves to maintain altitude. The ground speed upwind
varied from 120 kts to 70 kts. When I turned around, I saw 235 kts ground
speed in the rising air. While I wouldn't have been up there had it been IMC
due to the very high potential for icing that would have been present, there's
no way that the GPS ground speed would have helped me get a feel for airspeed.
If I'm going to be flying anywhere near potential icing, an airspeed indicator
is not something I'd want to sacrifice. This is even if you have an obvious
out, like clear air below, because ATC in some parts of the country is often
fairly inflexible in allowing you to change routes or altitudes, like in the northeast
corridor.
I presently fly an icing certified plane. It's amazing how efficient sharp protrusions
are at collecting ice. The thermometer probe is an excellent ice catcher.
I would imagine that a cold pitot tube would be even better.
>> But I don't get the fascination with a heated pitot tube in an RV if
one is
>> going to have an IFR GPS on board. At altitude, if you lose your pitot
>> intput from ice, your GPS will be plenty accurate to keep you safe. I'd
>> worry more about ice on wings and prop and get myself out of there as
>> quickly as possible. If you're blind and at altitude and neither you nor
>> your FAA weather helpers can find some clear air for you to head for, then
>> as far as I'm concerned, that's a flight you should have made in a fully
>> booted aircraft anyway.
>> For landing, using GPS airspeed and your usual power and flap settings
for
>> putting the wheels on the runway will get you down albeit a little fast
if
>> you want to be on the safe side. If you get to 100 feet off the ground
on
>> approach and can't see the ground during your actual landing, you got a
lot
>> more problems than an AWOL pitot tube.
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