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RV-8 wheel landings

 
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jim-bean(at)att.net
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PostPosted: Wed Jan 04, 2006 7:43 pm    Post subject: RV-8 wheel landings Reply with quote


Listers,
A friend advised me not to full stall land an RV-8. He says that the
elevator gets blanked when full flaps are used so he only wheel lands
his plane. What say ye.
Jim Bean
First flight soon.


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khorton01(at)rogers.com
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PostPosted: Thu Jan 05, 2006 3:13 am    Post subject: RV-8 wheel landings Reply with quote


On 4 Jan 2006, at 22:43, Jim Bean wrote:
Listers,
A friend advised me not to full stall land an RV-8. He says that the
elevator gets blanked when full flaps are used so he only wheel lands
his plane. What say ye.
Jim Bean
First flight soon.

I don't believe the flaps are blanking the elevator, but putting more
flaps down does increase the nose down pitching moment. So the more
flap you extend, the more up elevator you need.
The archives are full of reports from people who say that the RV-8 is
difficult to three-point if the CG is near the forward limit. You
run out of elevator in the flare. I believe that having a CS prop
may also make things worse, even at the same CG, as it may blank the
tail a bit more than a FP prop.
For the first few flights, it may be wise to use some ballast to put
the CG near the middle of the recommended range. After a few flights
you can start adjusting the amount of ballast to slowly explore the
forward and aft CGs.
Kevin Horton RV-8 (finishing kit)
Ottawa, Canada
http://www.kilohotel.com/rv8

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martin(at)gbonline.com
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PostPosted: Thu Jan 05, 2006 7:31 pm    Post subject: RV-8 wheel landings Reply with quote


Dear Jim
I have over 1300 hours on my RV8 and usually wheel land on hard surface and
stall land with FULL flaps on my grass airstrip. I have never noticed any
unusual landing characteristic with either full or half flap landings. My
RV8 is equipped with a Lycoming IO390 engine and an extended hub
AeroComposites propeller. My CG is in a normal range. I hope this helps
you.
Dick Martin
RV8 N233M
the fast one


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