Mike, for what it is worth I have a Woodcomp 1625mm (=62" as near as
dammit) prop on my 914XS mono. I am not aware of prop limitations
differing between Classic and XS. I have always understood that this was
the max size that the LAA would approve. The clearance is fine on hard
runways, but on roughish grass strips you wouldn't want any longer
blades than that, as you might find the tips getting stained green.
Regards, David Joyce, GXSDJ
On 2021-12-29 12:03, Mike wrote:
> Hello Tim
>
> Thanks, this is what I was after the only problem is that sadly for me
> you are in NZ and I suppose governed by different regs!
>
> Here in the UK we are subject to something called CS-VLA 925 (easily
> googled) which makes minimum prop clearance demands.
>
> However glad to hear that you are getting good results, what brand of
> blades are you using?
>
> Thanks
>
> Mike
>
> From: owner-europa-list-server@matronics.com
> [mailto:owner-europa-list-server@matronics.com] On Behalf Of timward
> Sent: 29 December 2021 10:45
> To: europa-list@matronics.com
> Subject: Re: Europa-List: Re: Propeller Sizing
>
> Hi Mike,
>
> I have 64" prop blades on my Mono Wheel Classic #292. Prop clearance is
> not a problem.
>
> With the Airmaster CSU, Rotax 912ULS 100hp, it provides excellent
> performance.
>
> Upgraded to 64" from 62" after a prop strike, on recommendation from
> Airmaster.
>
> Cheers,
>
> Tim
>
> Sent from my iPad
>
> Tim Ward
>
> 12 Waiwetu Street,
>
> Fendalton,
>
> Christchurch, 8052
>
> New Zealand.
>
> ward.t@xtra.co.nz
>
> 021 0640221
>
> On 29/12/2021, at 11:29 PM, Mike <mike@nyumba.co.uk> wrote:
>
>>
>> Thanks Bud for your usual excellent reply.
>> I have been in contact with Dirk who has indeed suggested a
>> replacement
>> blade of 64" and been most helpful but the issue remains, can I fit a
>> 64" to
>> a classic mono. The LAA have provided me with a spreadsheet of
>> calculations
>> to determine prop tip clearance at Max AUW which I will carry out but
>> they
>> were unable to find out easily if any other classics were operating
>> with a
>> 64" prop so this is why I asked the community if anyone was operating
>> with
>> one.
>> Thanks for the pointer to your website I will certainly have a look.
>>
>> Thanks
>> Mike
>>
>> -----Original Message-----
>> From: owner-europa-list-server@matronics.com
>> [mailto:owner-europa-list-server@matronics.com] On Behalf Of
>> budyerly@msn.com
>> Sent: 28 December 2021 16:44
>> To: europa-list@matronics.com
>> Subject: Europa-List: Re: Propeller Sizing
>>
>> <budyerly@msn.com>
>>
>> Mike,
>> My website has how to select a prop for your Rotax.
>>
>> The 62 inch Warp Drive Taper blade is fine for most 80HP Rotax
>> powerplants.
>> The Rotax 912ULS 100HP has significantly more torque and the 62 inch
>> tapered
>> blade is not very efficient. My US folks were very disapointed with
>> trying
>> to use this short tapered blade on the 912ULS in both the Airmaster
>> and the
>> fixed pitch versions.
>>
>> The blade angle will be quite high and takeoff will be shortened,
>> climb will
>> be less and the cruise will be about 5 knots slower. The 80HP Rotax
>> won't
>> spin a wide chord 64 inch without lugging the engine down. There is
>> just
>> not enough torque. The tip at takeoff is not able to bite for good
>> performance.
>>
>> The LAA recommendations is for the Warp Drive Standard (wide chord)
>> blade of
>> 64 inch for the Europa (which limits the length for the airframe to 64
>> inches) and was the standard Airmaster for a number of years. The
>> 100HP
>> Rotax has the higher torque and can spin the wider and longer props
>> with
>> authority.
>>
>> Also available for the cost of a blade change is the Sensenich high
>> speed
>> blades. Whirlwind has a blade but due to Covid lockdowns in
>> California lead
>> time is many months. Sensenich and Warp Drive are made in free States
>> so
>> production and labor issues are not a major problem for delivery at
>> this
>> time. Airmaster will build you up a set of blades and ferrules ready
>> to
>> mount. It will cost you but it is worth it.
>>
>> Contact: Dirk Oyen
>> Oyen CTR (Europe Sales and Service)
>> Hemelrijk 61
>> Heusen-Zolder
>> Limburg 3550
>> Belgium
>>
>> E: dirk.oyen1@telenet.be
>> M: +32 477 25 80 28
>>
>> Website: www.propellor.com your European Airmaster Dealer. He has the
>> experience you will need to draw on in the UK (See the Airmaster
>> Contacts
>> section for resellers.)
>>
>> I have been happy with all the US manufactured blades in the Airmaster
>> Hub.
>> And NO, you personally can't change the blades yourself.
>>
>> Best Regards,
>> Bud Yerly
>> US Airmaster Dealer
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=505507#505507
>>
>> <====================
>>
>> <sp; -Matt
>> D==============================================
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