Bud,
I will comment between the lines:
allekirjoitus
Bud Yerly kirjoitti 16.7.2019 klo 17:26:
>
> Raimo,
>
> The trigear has the same characteristics. Weight is not the main
> problem. The trigear soft steel attachments will wear as the gear
> twisting will cause the bolt hole at the gear top to wear. The gear
> leg supports will get elongated and the bolt holes elongated and the
> gear gets quite loose feeling when the plane is jacked.
>
Thats obviously.
>
> As far as performance, I found the CG does tighten a bit as you
> approach 1600 pounds. I was surprised that the aft CG was not really
> that bad, but a forward CG made landing flare out less than enjoyable
> forward of 59 inches. Sink rates approaching in the flare at 60
> require attention and more care in the round out. Any power off and
> the sink rate is noticeable. A 912 or 912S with fixed pitch prop
> makes go arounds at over gross conditions a bit dicey with the flaps
> and gear full down. With the trigear, half flaps is quite comfortable
> to land with, and 10 degrees on takeoff eliminates that old sinking
> feeling on takeoff.
>
Exactly. Thats why I moved to the CS-prop. I have Airmaster & 912S and
Im 100% pleased.
>
> My paper attached basically explained to my customers who hadnt
> actually flight tested with me, some of my concerns and considerations.
>
> I must admit, that I have taken off at a full 1600 lbs in 12AY. Im
> not proud of that, but when you have to move a 350 pound football
> player, the plane can do it. It was the first time Ive ever rotated
> my Europa to takeoff attitude and it just sat on the runway and waited
> a bit. The 914 pulled me off and we were well on our way. Anita and I
> did a trip at 1500 or so pounds. The trigear without pilot and
> passenger after fueling will sit on its tail. With pilot and pax and
> full fuel, the CG was right at 62.5 and the pitch force per G and
> stall characteristics were acceptable.
>
Oh, I could ever imagine to take a passenger 350 pound /almost 160 kg!
How in the hell there was room enough for him? Once I flew to Denmark
Endealave island (say 4 hours) with a passenger 77 inches tall (196 cm)
and that was a nightmare, when coming back. He was quite skinny, weight
around 240 lbs /110 kg.
>
> A 1450 pound Europa with the CG from 59 to 62 is just fine. With full
> flaps in the mono, this CG range is more than conservative. In a
> mono, that 16 PSI tire may need to be pumped up a bit as it is really
> going to flex during landing and taxi. You may spin the tire on the
> wheel and tear the tube in this condition. Im not worried about the
> gear mechanism strength that much. The rubber block needs to be
> looked at though. Anything above 1450 and it starts looking kind of
> flat. Cracks will soon form and then you need a new rubber block.
>
Confirm! I have since my regular tire problems used always high pressure
& nitrogen & tyre puncture liquid inside always.
(I will never forget when landing with an empty monowheel, landing was
_super-short_ and taking the plane off the runway _quick_ly
was...extremely difficult without destroying it)
> Anyway, my two cents are in the paper on Wt. and balance, CG range,
> and loading.
>
Your two cents are worth of two Dollars /Euros at least!
- Raimo
> Best Regards,
>
> Bud Yerly
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
>
> ------------------------------------------------------------------------
> *From:* owner-europa-list-server@matronics.com
> <owner-europa-list-server@matronics.com> on behalf of Raimo Toivio
> <raimo.toivio@rwm.fi>
> *Sent:* Tuesday, July 16, 2019 6:44:15 AM
> *To:* europa-list@matronics.com
> *Subject:* Re: Europa-List: XS mono max gross weight
>
> Fred,
>
> I have MTOW 1450 lbs /658 kg.
>
> I got a nice letter from Mr. Andy Draper say 15-years ago, and that
> helped.
>
> It was also possible to make a 2+2 Europa (max 60 kg for back seats,
> suitable for two children or just one model type woman, if she is
> pretty enough).
>
> My Europas naked weight is 919 lbs /417 kg (today obviously a bit more).
>
> I _know_ around 1550 lbs /703 kg is not a problem for OH-XRT _during
> take-off_ - better to land with almost empty tank then.
>
> allekirjoitus - Raimo
>
>
> Fred Klein kirjoitti 16.7.2019 klo 0:09:
>>
>> Gents,
>>
>> My XS mono owners manual lists the max gross weight at 1370 lbs. yet my
>> understanding
is that most Europas in the US are tagged at 1450 lbs., and I know of
one which was approved at 1600 lbs. (believe it or not).
>>
>> So my question is, how is a higher figure justified if the FAA asks about it?
>>
>> Fred A194
>>
>>
>>
>>
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