Today's Message Index:
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1. 03:56 AM - Re: flap flap again (David Feinstein)
2. 06:37 AM - Re: Re: flap flap again (flyv35b)
3. 11:53 AM - Re: Re: flap flap again (TeamGrumman@aol.com)
Message 1
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| Subject: | Re: flap flap again |
--> TeamGrumman-List message posted by: "David Feinstein" <david@carneyaviation.com>
# I'd be pretty surprised to fly a plane that didn't climb with
# flaps deployed.
It's a certification requirement: 14 CFR 23.77-a-3
Don't know what rules apply to experimentals.
Message 2
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| Subject: | Re: flap flap again |
--> TeamGrumman-List message posted by: "flyv35b" <flyv35b@ashcreekwireless.com>
FAR 23.77(a)3 also says you don't have to show this sea level 3.3 percent
climb gradient with landing flaps IF the flaps can be retracted in 2 seconds
or less without loss of altitude. That probably precludes most electrically
operated flaps.
Maybe this is one reason why the 2 place Grummans have such small flaps that
don't offer much drag (or lift).
To answer Jamey's question I would be surprised if a Cessan 150 can climb
with it's big flaps fully lowered. If so, it's not much and probably won't
meet the FAR 23 requirements, but then it was not certified under part 23.
Also, there are a lot of planes that won't climb at higher density altitudes
with the flaps lowered.
Cliff A&P/IA
----- Original Message -----
From: "David Feinstein" <david@carneyaviation.com>
Sent: Saturday, April 15, 2006 3:28 AM
Subject: TeamGrumman-List: Re: flap flap again
> --> TeamGrumman-List message posted by: "David Feinstein"
> <david@carneyaviation.com>
>
> # I'd be pretty surprised to fly a plane that didn't climb with
> # flaps deployed.
>
> It's a certification requirement: 14 CFR 23.77-a-3
> Don't know what rules apply to experimentals.
>
>
Are there common aircraft in anyone's experience that will
not climb under near standard conditions with flaps deployed?
Jamey
>
>
>
Message 3
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| Subject: | Re: flap flap again |
--> TeamGrumman-List message posted by: TeamGrumman@aol.com
In a message dated 4/15/06 6:38:04 AM, flyv35b@ashcreekwireless.com writes:
> To answer Jamey's question I would be surprised if a Cessan 150 can climb
> with it's big flaps fully lowered.=A0 If so, it's not much and probably won't
> meet the FAR 23 requirements, but then it was not certified under part 23.
> Also, there are a lot of planes that won't climb at higher density altitudes
> with the flaps lowered.
>
Ken (LyCon) Tunnel's daughter was killed in a C-150 trying to climb out with
full flaps. She spun it into the ground from about 300 feet. Maybe a plane
CAN climb with full flaps. But, WHY?
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