[Wing] Spin Testing: RV-6/6A or RV-7/7A

[Jacob & Grace]

I will be ready in a few  months, bureaucracy willing.

In the MDRA list of requirements they refer to certification to satisfy them 
about the aircraft conformity and aerobatic capability?  They want to 
confirm the design limits but doesn't say how?

Did you need something from Vans? (Like a letter)
----- Original Message ----- 
From: "Micheal Freund" <mifreund at netidea.com>
To: "Van's Air Force Western Canada Wing" <wing at vansairforce.org>
Sent: Tuesday, January 11, 2005 4:43 PM
Subject: Re: [Wing] Spin Testing: RV-6/6A or RV-7/7A


> Thanks Tedd for making the correction regarding spin recovery.As I am 
> ready
> with C-GZGV to make the first flight I am particularly interested in this
> issue.I agree with you it is important not propagate false information.
> ----- Original Message ----- 
> From: "Tedd McHenry" <tedd at vansairforce.org>
> To: "Van's Air Force Western Canada Wing" <wing at vansairforce.org>
> Sent: Tuesday, January 11, 2005 8:48 AM
> Subject: Re: [Wing] Spin Testing: RV-6/6A or RV-7/7A
>
>
>> On Mon, 10 Jan 2005, Alan Cornyn wrote:
>>
>> > Van strongly reccommends not ever spinning an RV-6.  He said he only 
>> > did
> it
>> > once and hired someone else to do the testing.  They spin at an
> icreadble
>> > rate of speed, but they do recover using usual technique.  He has said
> this
>> > more than once in the RVator.   Al  RV-6 flying 400 hours.
>>
>> Al:
>>
>> I appreciate the desire for caution, but you've overstated Van's case.
> Van's
>> latest word on the subject is Service Bulletin 02-6-1, which is available
> at
>> http://www.vansaircraft.com/pdf/sb02-6-1.pdf.  In it he says,
>>
>> "We chose to recommend that RV-6 pilots concentrate on learning spin
>> recognition, immediate recovery, and spin avoidance rather than
> encouraging
>> them to explore the limits of spin recoverability. We also recommended
> that the
>> RV-6 not be used for recreational spins. Section 15 of the RV-6
> Construction
>> Manual details spin testing, spin recovery techniques, and spin 
>> limitation
>> recommendations for pilots."
>>
>> Section 15 of the RV-6 construction manual says,
>>
>> "For the pilot anticipating aerobatic use of his RV-6, this will include
> stall
>> entries from steep pitch angles and banks, and accelerated stalls from
> similar
>> attidudes.  Similarly, spins should be practiced from various entry
> attitudes
>> and power settings.  Obviously, initial spin testing should be done with
> the
>> airplane loaded to a forward C.G. and entry attitudes should be moderate.
> With
>> satisfactory recovery, loading and entry attidudes can be increased to
>> anticipated limits."
>>
>> Clearly, Van is not recommending never spinning the RV-6.  To the
> contrary, he
>> specifically recommends spin testing for builders who plan on aerobatics,
> and
>> provides some detail on how to accomplish it.  Van also says that, with
> the
>> larger tail, "RV-7 spin recovery qualities are equal to or better than
> those of
>> the standard RV-6/6A, which have been service proven through fleet
> experience."
>>
>> I hear a lot of loose talk about RV spin characteristics, and I worry 
>> that
> the
>> airplanes are getting a wholly undeserved reputation.  If that "meme"
> catches
>> on it will cause us grief down the road.  "I was going to buy an RV-7, 
>> but
> then
>> I heard about the spin characteristics."  We've seen it before with other
>> airplanes.
>>
>> Tedd
>>
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>
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