RE: Europa-List: Re: Permit to test

[Ian Cook <IanCook1@hotmail.com>]

Hi,
    I have used a wing tip holder (a person) with the O/Rs removed when ope
rating from grass (as per a normal glider), however on hard surfaces, altho
ugh there is still not much clearance between the ground and the down going
 aileron, I used the wing tip wheel and the wing lifts straight away, as th
e A/C accelerates quickly, much sooner than on my Arcus M self-launching gl
ider with its limited power to weight ratio.  I have done quite a lot of gl
iding but have not measured the performance gained with the O/R wheels remo
ved. With prop feathered, U/C retracted, O/Rs and tip wheels fitted at 55 k
nots IAS the glide is about 22.8:1, rate of sink 240 ft/m. There is a rapid
 increase in sink below 52 knots, so although it will fly down to the 42 kn
ots (stall) the min sink just increases, so there is no point in flying too
 slowly unless the thermal is good with a very small core. The main concern
 while gliding is to total lack of visibility, when flying from the left-ha
nd seat, into a right hand turn due to the mounting bar for the cockpit doo
rs.  If anybody knows of a bubble canopy installation on a Europa, I would 
be very interested?  Still days in the UK are very rare, my ASI and PE erro
rs were within a few knots, but the figures are as observed and not been co
rrected for ISA standards. The cowling radiator hole need blocking up and a
ll the leaks around the main U/C wheel and wing fairings need sorting as we
ll as working wing tips rather than what Don did just to reduce to wing ben
ding moment. It would then get to the advertised 25:1 or better?

Regards

Ian Cook

-----Original Message-----
From: owner-europa-list-server@matronics.com <owner-europa-list-server@matr
onics.com> On Behalf Of Alan Twigg
Sent: 30 December 2020 06:53
Subject: Re: Europa-List: Re: Permit to test


Ian does use a wing runner with retracted outriggers, I am uncertain of per
formance increase, I will ask him.
Ian also flies an Argus, self launching glider with wingtip wheels, I used 
to fly such an aircraft, wingtip runners is the norm.
Regards to all for the new year.
Alan

Sent from my iPad

> On 29 Dec 2020, at 18:23, rparigoris <rparigor@hotmail.com> wrote:
> 
> 
> Hi Alan Does Ian retract outriggers manually and use a wing runner to lau
nch? What's estimated performance increase retracted? Thx. Ron P.
> 
> 
> 
> 
> Read this topic online here:
> 
> https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fforu
> ms.matronics.com%2Fviewtopic.php%3Fp%3D499878%23499878&amp;data=04%7C0
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> aaaa%7C1%7C0%7C637449082572443867%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4w
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> a=TfgrH9hqOS3pzRjRQV91ylVn3UHCJGrbSRQ26ycX5GU%3D&amp;reserved=0
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