|
|
Thanks, David, I always appreciate the wisdom of those who know what they
are doing. Experience is also a fine teacher - providing you live to
benefit from it, fortunately thus far I have. I do try not to make the same
mistake twice and so far have avoided a similar incident. The preceding
aircraft is either on the down wind side or I wait.
Ed
----- Original Message -----
From: "David Carter" <dcarter@datarecall.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Saturday, March 19, 2005 3:35 PM
Subject: [FlyRotary] formation takeoffs [was Re: [FlyRotary] Re: Electric
water pump
This is scary! I flew fighters for 4905 hours. Formation takeoff and
landings were "the norm". We briefed and executed every one to avoid such
scary events.
- Wingman always on upwind side, with maybe 10 feet of lateral
spacing
between adjacent wingtips during the takeoff roll and liftoff. After gear
up, then we'd slide in closer before going into clouds.
- If flight of four (2 elements taking off in formation), a minimum
of
10 seconds between brake release of 1st element and 2nd. 15 seconds was
even better.
- Wingman - keep up nearer to line abreast, not tending to lag back,
and never get in close so your wingtip is behind leader's - keep a couple
of
feet lateral spacing between tips.
- If taking off single ship, 10 second spacing, minimun. If wind is
"right down the runway" and NOT going to blow wing wash off to side of
runway, use 20 seconds and stay on your side of the runway - don't slip
directly or nearly directly behind the leader! You know why!! You've
been
there and survived. "There but for the grace of God go I!"
David Carter
----- Original Message -----
From: "Ed Anderson" <eanderson@carolina.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Friday, March 18, 2005 8:09 PM
Subject: [FlyRotary] Re: Electric water pump
At SERFI Flyin 2003, I took off behind Finn and immediately after lift off
with perhaps 15-20 ft altitude (or less) the aircraft roll violently up
(45-60deg) with the right wing - and yawed approx 15-20deg to the left -
subconscious reaction was stick/rudder full right - no immediate response,
had time to think "control problem" when the aircraft reversed and rolled
up
its left wing. Scared a couple years off my fast receding youth. Later
decided it was Finn's prop wash and now make certain that the aircraft in
front of me takes off on the down wind side of the runway or I simply wait
until he has lifted off and cleared the end of the runway.
That small RV3 generated enough prop wake to roll my rather heavy RV-6
around like a toy. Not nice close to the ground and slow on airspeed.
Ed A
----- Original Message -----
From: kenpowell@comcast.net
To: Rotary motors in aircraft
Sent: Friday, March 18, 2005 8:19 PM
Subject: [FlyRotary] Re: Electric water pump
I was there too. Made a REAL BELIEVER out of me. Small airplanes do
have
wake turbulence; Probably off the prop wake IMHO; others seem to think
wing tip vortices. For those who weren't there: at Tracy'sin 2002 (I
think), Finn started his takeoff run soon after ED had lifted off; as he
(Finn) 'rotated' the aircraft rolled left (hard) and the left wingtip
lightly brushed the ground. Scared me silly; Finn had no idea how close
he
came to ???????.
Ken Powell
Bryant, Arkansas
501-847-4721
-------------- Original message --------------
> Charlie England wrote:
>
> > Finn Lassen wrote:
> >
> >> Obviously you've never flown right behind Tracy :)
> >>
> >> Finn (I guess only Ed will appreciate this one)
> >
> >
> > Wanna bet? I saw the grass stains on your wingtip. I also saw you
get
> > 'em.
> >
> > Charlie
>
> Well, can't blame Tracy for that one. Sometimes it helps if you're
> already awake when you start flying and don't have to wake up during
> takeoff.
>
> Finn
>
>
> >> Homepage: http://www.flyrotary.com/
> >> Archive: http://lancaironline.net/lists/flyrotary/List.html
>> Homepage: http://www.flyrotary.com/
>> Archive: http://lancaironline.net/lists/flyrotary/List.html
|
|