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January 28, 2009

Group,

Here are a number pictures taken yesterday at Dudely's Z-1RA workshop.

Lynn

This shows the fuselage on its Hoosier tyres with all fuselage structural work completed. Present are David Ashley, Duds and myself, and Dave Pounder who took the photograph.

Here's a wide angle view showing the left hand pannier tank installation and the two mounting steps on the port side. Dudley is pleased that he can access the cockpit easily which he'd originally thought might prove difficult due to an accident which left one of his legs difficult to bend. The lower wings of the Z-1R are further forward than on the Z-1S, Z-21 etc. (due to the heavier radial engine, although the forward fuselage has also been shortened) so using the lower wing root as a step is not practicable on the 'R'. The wide angle makes it look a little like a Nieuport 28 in this view!

This pictures shows the R2800 7-cylinder radial on the shop floor. Note the pannier filler cap at the upper front end of the tank and the red drain plug on the lowest point on the tank just behind the rear spar carry-through. The main tank (replenishing) supply elbow is visible in blue atop the pannier, just behind the fuel pipe transfer hole which goes to the facet pump, the central support for which is visible just inside the forward decking. The cabane's lower bolt attachment (there is a triple bolt arrangement on the Stummelfitzers) carries the upper pannier strap lug. The tank itself sits on wooden rails above the spar carry-thro' beam ends.

An inspection access port passing between the inner and outer forward ply skins is located ahead of the tank through which the left rudder pedal is visible. The upper of the two steps will have extended 'buttressing' below the step platform to spread the load and this will also sandwich the local stringer. There is also a 'vertical' (in ground attitude) timber support inside the fuselage vectored on the block confluence at the lower longeron where the black lower torso harness attachment washer plate can just be seen.

The two flat strap carry-through lugs for the flying wire attachments may be seen on the lower longerons. Note the rear lug is half way between the wing spar carry-thro's which are the 'standard' (Z-21 etc.) 16" apart, indicating the stagger to be 8" on the R (although it may not look it in this view the cabane itself is raked forward 10 degrees). Also in this view are the double-shear engine mount plates and on the far side of the fuselage may be seen the shallow inverted 'V' bracket which is part of the main fuselage tank support bracketry, tied into the bolt-tail of the upper engine mount bracket.

The Type R Stummelflitzer is an LAA Type 342 and is a very different aeroplane now from the original Z-1 and the Z-21 (LAA 223).

Here's a pleasing rear 3/4 view of the Z-1RA fuselage with two of the wings and the tailplane and elevator beyond. The two 'V'-ties in the undercarriage at the pivoted-ends of the swinging half-axles are not yet fitted. The other photo shows the shape of the firewall and the contour of the fuselage and pannier, all of will which eventually be skinned with polished aluminium forward of the cockpit.

Two more!

January 28, 2009

Group,

Here is a mock-up of the vee type windscreen on Dudley's Z-1RA. Also visible is the Facet transfer pump and the associated plumbing.

The other Vee screens are from a UK Supermarine flyingboat restoration and a French Albert 110 Monoplane. Note, apart from the lower curve of the Albert rudder being set above the elevator arc-of-travel the otherwise general similarity of styling of this fin and rudder to that of the Meteor, Stummelflitzer and Z-21 elliptical tails and indeed the Albert logo's similarity to the Staaken emblem.

Cheers,

Lynn

August 14, 2009 - Some Stummel Details

Group,

Here are a few pictures taken in Duds' workshop yesterday.

Lynn

October 12, 2009 - Duds

October 12, 2009 - Filler Caps, Etc

The three tank filler necks I have had done for the Z1R are as the one in the photos. It is approx 37mm o/d, 35mm i/d and 105mm long. The length is cut down to suit when fitting. The cap is in highly polished brass (tarnished now as I have had it nigh on a year!) and has a rubber sealing gasket inside.

Filler 1 photo also shows the plate that the neck will be welded to and the gasket that will go between the plate and the tank, which has a series of captive nuts riveted to allow the plate/filler neck assembly to be screwed down.

I could not simply have the neck welded directly to the tank as I wouldn't be able to get the tank in through the cockpit. I don't know whether Lynn is a genius or just damned lucky as the tank goes in with at least 2mm clearance over the spar carry through!

There are no vent holes in the caps and I will need to put them in the two for the saddle tanks as there is no other form of venting to them. I will have to remember to put a hole in the rubber gasket also:o).

The oil tank as I designed it, has a 31mm dia hole in it to take a scaled down version of the fuel tank necks, the brass cap will also be scaled. I haven't ordered that yet but am guessing that a 50mm long neck will be plenty. This one will be welded directly into the tank as access is a little more generous.

As mentioned during out telecon I can get your fuel and oil neck/cap assemblies done when my oil one is done.

For interest I also attach a shot of my MKIII 3mm ply temporary instrument panel. I have played around with positioning and I can actually see the ASI and Altimeter now when sat in the cockpit, now there's a bonus! The gap at 10 o'clock is for a 2 1/4" radio which is yet to be purchased. The cabane struts, when in position, also cover a little of the panel. I tried to make room for a transponder as there is a lot of class D around here but couldn't manage it.

There are several switches to fill the other voids and the odd placard to keep the LAA cheerful.

I am so glad that I didn't dive straight into the engine turned 2mm aluminium panel that I have for the finished job.

Just let me know if you want me to order anything for you.
Kind regards
Duds

November 12, 2009 - Hot Off the Press!

Group,

Here's the first picture of Duds' dashboard which he admits doesn't include vintage instruments, but it is no less a fine piece of work for all that. He reckons he took as long to devise the attachment skirt on the 'V' winsdcreen as it took 'Mark in Oz' to build his entire Flitzer, but I think Duds is guilty of a little hyperbole there.

However, I am as thrilled as Dudley with his final windscreen, which is one of two 'options' I show on the plans - one being a 'fighter type', three-piece screen with a flat, sloping centre-section, suitable for the attachment of an Aldis sight (!), and this, which is based on the racing Blériot-SPADs and their fighter counterparts, the Types 51, 61 and 81. Absolutely ideal for the Type R and a real vintage shape!

No words needed with the attached except to say the screen is lovely and absolutely authentic and would have looked completely at home on a 1920s SPAD fighter or racing machine.

Well done Duds!

Lynn

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