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  Topic: Fuel tank internal coating degrading
aerosiam

Replies: 2
Views: 7741

PostForum: Allegro-List   Posted: Tue Dec 17, 2019 3:50 am   Subject: Fuel tank internal coating degrading
While doing the annual on a 13 year old aircraft, I used a 1 inch tube to siphon out the fuel. I assume the large black rubbery deposit in the photo is part of the internal coating of the tank. Has an ...
  Topic: Stall warning system
aerosiam

Replies: 1
Views: 6219

PostForum: Allegro-List   Posted: Tue Dec 17, 2019 3:42 am   Subject: Re: Stall warning system
I think I have the answer to this.
It's an MPL 503 pressure switch
https://www.aircraftspruce.com/catalog/inpages/mpl500series-ps.php
The V-vacuum side connects to the port in the leading edge and ...
  Topic: Multiple Issues on Maiden Flight - HELP
aerosiam

Replies: 1
Views: 5457

PostForum: Allegro-List   Posted: Thu Apr 07, 2016 6:19 am   Subject: Re: Multiple Issues on Maiden Flight - HELP
Dee

See my original post
http://forums.matronics.com/viewtopic.php?t=55665

I'm pretty sure it was the collar above the compression block which we machined down (in your second photo which corr ...
  Topic: Rudder Stiffness
aerosiam

Replies: 5
Views: 8305

PostForum: Allegro-List   Posted: Thu Apr 07, 2016 5:48 am   Subject: Re: Rudder Stiffness
Hi Hugh

Yes, I remember.

My website is www.aero-siam.com

Regards
Paul
  Topic: Build Pictures
aerosiam

Replies: 4
Views: 6281

PostForum: Allegro-List   Posted: Thu Apr 07, 2016 4:39 am   Subject: Re: Build Pictures
Luis
I also have a 2006 Allegro with wing tanks. The plumbing is a little complicated - it's good if you can get a drawing

Regards
Paul
  Topic: Fuel Vapors in Cockpit
aerosiam

Replies: 5
Views: 8103

PostForum: Allegro-List   Posted: Thu Apr 07, 2016 4:32 am   Subject: Re: Fuel Vapors in Cockpit
Dee, do you have wing tanks ?

I had a problem of fuel vapour smells but only on the climb out. The translucent small fuel overflow / vent lines from the wing tanks were the problem. The original co ...
  Topic: Rudder Stiffness
aerosiam

Replies: 5
Views: 8305

PostForum: Allegro-List   Posted: Thu Apr 07, 2016 4:23 am   Subject: Re: Rudder Stiffness
Hi Hugh / Dee

My website and email forwarding problem has just been resolved

I keep the website up just to provide info on this great plane.

The nosewheel was stiff on delivery. It was 10 yea ...
  Topic: Swelling gas cap
aerosiam

Replies: 7
Views: 10449

PostForum: Allegro-List   Posted: Sat Jan 24, 2015 10:50 pm   Subject: Re: Swelling gas cap
I also had a problem with the gas cap about 2 years after I bought the plane. It leaked and was difficult to remove. I replaced it with the non-lockable version from the factory. It's been ok for 6 ye ...
  Topic: Allegro stall speeds
aerosiam

Replies: 0
Views: 3677

PostForum: Allegro-List   Posted: Sat Nov 19, 2011 11:35 pm   Subject: Allegro stall speeds
During a biennial with a CFI, the stall characteristics were tested. The plane is a 2006 Allegro 100 hp fitted with full span vortex generators plus VGs on the bottom trailing edge of the horizontal s ...
  Topic: Stall Warning Adjustment
aerosiam

Replies: 6
Views: 9356

PostForum: Allegro-List   Posted: Thu Sep 29, 2011 6:33 am   Subject: Re: Stall Warning Adjustment
Larry

I have the same problem. It sounds after touchdown. The system worked normally for a couple of years so i am not sure an adjustment will cure your problem.

Presumably you already checked t ...
  Topic: MTOW of the Allegro 2000 vs. the Allegro 2007
aerosiam

Replies: 3
Views: 7018

PostForum: Allegro-List   Posted: Thu Jun 23, 2011 7:32 am   Subject: Re: MTOW of the Allegro 2000 vs. the Allegro 2007
I would be interested to hear Thom's expert view on this subject.

I have no idea if this is correct but here is my take on it.

The Allegro 2000 was designed to the 'standard' European normal / ...
  Topic: What fuel for Rotax 100hp
aerosiam

Replies: 0
Views: 3911

PostForum: Allegro-List   Posted: Tue Apr 12, 2011 11:10 pm   Subject: What fuel for Rotax 100hp
There are a choice of 3 fuels here in Thailand.

'Normal' 95 octane
91 octane
95 Gasohol (ethanol) either E5 or E10

Normally I use normal 95 but many areas of Thailand no longer have it and I h ...
  Topic: Hydraulic Brake System Master Cylinder
aerosiam

Replies: 3
Views: 6910

PostForum: Allegro-List   Posted: Tue Apr 12, 2011 10:52 pm   Subject: Re: Hydraulic Brake System Master Cylinder
I agree wth Brian's comments

The pinhole is presumably the breather and can also be used to top up cleanly with a hypodermic needle.

I replaced the disk pads and bled the system a couple of year ...
  Topic: New Allegro Web site
aerosiam

Replies: 5
Views: 10059

PostForum: Allegro-List   Posted: Thu Jan 27, 2011 10:42 am   Subject: Re: New Allegro Web site
interesting.

The spec says 1,320 lb (600 kg) and VNE 168 mph. Is this a typo or US-spec or correct for the 2007 model? The pre 2007 model was 1,144 lb (520 kg), 138 VNE

The site also says " ...
  Topic: Dynon autopilot servo installation photos
aerosiam

Replies: 2
Views: 9868

PostForum: Allegro-List   Posted: Mon Dec 13, 2010 7:32 pm   Subject: Re: Dynon autopilot servo installation photos
The first photo also shows the modification to the wires on the flap microswitches which I mentioned in an earlier post.

The factory used a computer ribbon which has extremely thin wires. Over time ...
  Topic: Dynon autopilot servo installation photos
aerosiam

Replies: 2
Views: 9868

PostForum: Allegro-List   Posted: Sun Dec 12, 2010 10:16 pm   Subject: Dynon autopilot servo installation photos
Someone asked me for photos of the servo installation in a previous post.

I have more photos from different angles if anyone wants them by email. The install is pretty simply but the black electric ...
  Topic: Brake components and seals
aerosiam

Replies: 10
Views: 16960

PostForum: Allegro-List   Posted: Thu Nov 04, 2010 8:58 pm   Subject: Re: Brake components and seals
What about DOT 5 silicon brake fluid (not 5.1) ?

Paul
  Topic: Brake components and seals
aerosiam

Replies: 10
Views: 16960

PostForum: Allegro-List   Posted: Wed Nov 03, 2010 11:21 pm   Subject: Re: Brake components and seals
Hugh
I replaced all the seals possible. I think the plunger seal in the master cylinder is important as Brian suggests.

I had to pump the brake 3 times before startup to ensure I have sufficient ...
  Topic: Brake components and seals
aerosiam

Replies: 10
Views: 16960

PostForum: Allegro-List   Posted: Wed Nov 03, 2010 9:34 am   Subject: Brake components and seals
The brake system on our 4 year old plane was stripped down for inspection and to renew all the seals and O rings.

This is a straightforward task. One caliper needed honing due to minor corrosion. ...
  Topic: Aileron hinge pins
aerosiam

Replies: 0
Views: 4014

PostForum: Allegro-List   Posted: Tue Nov 02, 2010 5:38 am   Subject: Aileron hinge pins
Both outer and 1 inner hinge showed signs of play at the 200 hour inspection. The aileron could be moved vertically upwards. In flight, the ailerons were slightly reflexing.

Thom Riddle advised tha ...
 
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