Dave - The C of G should be 190 - 210 mm back from centre of leading edge of top wing, with a slight 3deg. nose-down attitude.
Ken

Frank - I've emailed the info that I have.
Thanks

John - two or three years ago I made a couple of exhaust restrictors for the engines in Ted Allison's Rapide. The engines were two DLE 55's. We tried various configurations for hole pattern and size and finished up with pepper-pot arrangement of five 3.3mm holes in each restrictor. The restrictors w...

I've used this company in the past for carbon fibre sheet and had good service.
http://www.easycomposites.co.uk/#!/cure ... e-products

They should be able to assist with wing tube material.
Ken

We bought our Ransomes machine from https://www.grassmowingworld.co.uk/
Rob Glendinning is the owner robert@grassmowingworld.co.uk
First-class company in Clitheroe, Lancashire who sell various 2nd-hand fully overhauled machines.
Ken

Thanks Mike - I've emailed the advertiser
Ken

Just looking for air frame in reasonable condition. Already have spare engines for either third or quarter scale.
Thanks.

Looking for Tiger Moth air frame - either quarter or third scale.
Flair quarter scale preferable, but I know they're not so common now.
Thanks, Ken Roddham

Paul at Gashanger Hobbies
http://www.gashanger.com/
Thanks, Ken

I run a Fuji BT-50SA and the carb fitted is a Walbro HDA 48C
Thanks and rgds.

Afternoon Mike,

I've emailed you to your contact details supplied.
Thanks.
rgds. Ken

Barry - I see your latest photo of the rear bearing and this is a sealed, pre-packed bearing, however on your initial photo showing the front bearing this is metal shielded (not sealed) and not lubricated. If you've been supplied from Model Fixings with sealed bearings as per your last bearing photo...

Barry - The seals you talk about are "metal shields" and not seals and will just stop dust and small debris getting into the bearing. The shield will not stop oil, although it will restrict it a bit, hence the rear bearing is still ok. If you fit a shielded bearing to the front it will not...

Morning Barrie - Looking at the engine drawing for the 26cc CRRC Pro V2, the front crankshaft bearing does not get lubrication from the crankcase. There is a seal 26121 before the bearing. The type of bearing you need for the front is a rubber-sealed pre-packed bearing. The back bearing is open (uns...

Hi James - It's a bit strange if you've had the engine from new and know it's history. If there are no signs of mechanical damage and everything looks true then it would be worth it to reassemble according to the drawing with two shims for the head and a gasket set for the liner and back cover. If i...

Barrie - When the engine is running from idle through intermediate, to high speed the fuel from the carb is provided from three different ports - initially the primary port, then the primary and secondary ports, and finally primary, secondary and high speed ports. All the time accurate metering is p...

Barrie - a couple of things to check with the Tillotson HS carb 1. In the atmos.chamber end of the carb check that the centre stud of the diaphragm is hooked onto the inlet control lever, and not resting on top. 2. Check that the height of the needle control lever is correct i.e. flush with the top ...

James - You can initially take off the back cover 2 and check for any mechanical contact between the bottom end bearing and the bottom of the crankcase, and/or the inside face of the back cover. You can then go further and take off the cylinder head and remove the liner and then piston and con-rod a...

James - It sounds as though there is possibly some damage/misalignment with the crankshaft/and or con-rod. This could have been initially caused with excess fuel in the cylinder when trying to start. This distortion could cause the piston travel to increase slightly and allow the piston to hit the p...

After the initial six test flights at Longhorsley Ted has had to wait patiently for the past couple of weeks for suitable weather conditions to log some more flying time on his superb model. Yesterday his waiting was rewarded and weather conditions at the Club were great with light winds and warm te...