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RE: Trike Nose Leg Bungee Breaking.

Subject: RE: Trike Nose Leg Bungee Breaking.
From: Bob Harrison <ptag.dev@ukonline.co.uk>
Date: Fri, 3 Aug 2001 17:26:35
Hi! Fred.
I hope you aren't "baiting " me !!!!!
Yes ,I've been there done that got the tee shirt and bloody worn it .!!!! I
have lots of photos with up to 450 kg sitting on top of foam balanced on top
of the shiny new Jabiru  crank case  putting about 4.5 g load on the engine
mount that the PFA wouldn't accept ,  also a spring balance pulling the
engine sideways with my car tow bar until the tyres nearly rolled off the
main gear  getting I don't know how many damn "g's" for the same reason .
Then would you believe they wanted both scenarios together !!!!!!!???????
Only to eventually say the engine mount was AOK since they had been using
wrong figures.
Please don't remind me of those times.????
Regards
Bob H  G-PTAG
Yes, do it this way then you know the engine mount is somewhere near AOK !!!
But I know my tail will take a BUNT !!!!

 -----Original Message-----
From:         owner-europa@post.aviators.net
Sent:        03 August 2001 15:42
Subject:        Re: Trike Nose Leg  Bungee Breaking.

Bob Harrison wrote:
> ....
> To measure the shock load that begins to exercise the bungee with only my
> wife present she used a long thick board with about a 4:1  lever placed
> across a drum lifting up on the tail with a packing of foam to spread the
> load , whilst I pulled down on the propeller and watched the digital
balance
> for the "break load".
> ....

Thanx much, Bob.  I see it now; just more lever on the tail while
still measuring up front.  I wonder also if one could place blue foam
pieces on top of white engine mount and solid places of the Rotax.
Fiberboard on top, then barbell weights, electric motor, old car
battery, frozen turkey, a little fixed boost on the tail.  That way
not coordinating 2 people, yanking down on prop, swinging needle or
flopping digits on scale, w/o able to see exactly when bungee stretch
commences w/o third person?

Regards,
Fred F., A063


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