Propellor – Hercules

Passing my old iPad  to my Dad and have around 2,600 images to review and save !

Found this one that Rupert  kindly sent me of the manufacture of my Jabiru 2200 prop

Gorgeous wood 5 laminations and then cut before the amazing finish that Rupert applies

Picked it up in town rather than risk my puppy Labrador chewing on it !

 

Front panel completion

It’s been so busy at work with lots of meetings and business trips away to London and Luxembourg so good flying opportunities but .. in the middle of all this I managed to get a secondary radio head unit for the Trig ordered and a secondary alternative style RPM gauge for the front P2 cockpit

The front cockpit had been pre wired with spare cables BUT only from the firewall backwards NOT from the rear (radio) forward

I had fitted the Trig Radio and Transponder just behind the pilot seat on a bracket secured to the tubular body framework .. hoping this would be reasonably accessible post build

It turns out – it was ! Easy to get at … TLAC kindly loaned me the super expensive radio pin crimpers again and I added the 4 or 5 additional pins required – should have done this at the start ! But hey .. best laid plans

The additional wires were added and labeled and small handshake tags added and then a new small 4 wire harness was made and run up the starboard side longeron

I added a new power bus bar in the front for the radio and New Rev counter but realised I didn’t need power for the secondary head as it takes 2 POWER feeds from the base radio box .. one power and one ‘power up’

The ‘power up’ connection means you can turn the radio on in the rear (P1) and the front (P2) lights up ! Neat 😉

Having connected it all up and triple checked power and earth I flicked the master on and turned the radio on and bingo ! First time .. I love this Trig kit 😉

Front RPM – MGL

I added a new small 2.25 inch MGL gauge called a Vega RPM

Wondeful instrument and .. mounting it on the front panel on the right hand side .. means I could see it hopefully even when a passenger was in !

Again – wired up and full colour at the touch of a button .. have wired it through a switch on the rear panel

 

Tappets – Jabiru 2200

Had a bit of a worry when checking through the engine documentation and it noted that the tappets should have been checked and re checked at early intervals

Its sounding very sweet and settled but I printed off the detail and took off the rocket box cover from one cylinder head to check exactly what I needed to do.

I haven’t done tappets for simply ages – not since I rebuilt the head of my 1967 MGB Roadster when I was about 20 !

So I was a bit perplexed when I couldn’t see the adjuster nuts on the pushrod heads ?

I contacted my good engineer Danny Baker who kindly put my mind at rest …

“At the base of the pushrods there are cylinders with springs in, when the oil pressure hits them they expand to a certain pressure which maintains the correct gap, very simple but works great”

What a neat idea !

 

 

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