I purchased from friend, a Brian Taylor spit, with a 69''wing , Never flown
Does anybody know the (CG)
And I was looking at a 140 rcs for power. Will this be to much?
Any sugestions would be great.

Which 69" Spitfire, the Mk1 or the Mk14/19?

I am just about to start the Mk14, and can give you Cg for that one (when I get home to the plans!)

I will be using a .90 4 stroke, I have a clubmate who flew the Mk 1 on a .60 2 stroke and this was about right.

Simon.

Gents,

I've seen this bird fly before on a 90 4-stroke. I'd say it was a perfect combination. In fact it's what originally drew me to the Taylor line. :-)

I am trying to convert to gas. And the smallest gas I can find is the rcs 140. the plane is a MK 14

Rye:
Your best bet is to obtain the plans from Bob Holman if you need the exact CofG location. http://www.bhplans.com/
I built and flew the Mk XIV/XIX of 69" 12.5 lbs dry with a .91 OS 2 stroker and it was awesome!! Scale flight and sound!
Seems to me a 1.40 is too much for this small bird.
See photos at: http://mywebpage.netscape.com/warbirdscale/

JG

Rye,

Sorry can't help with the gas conversion, not my thing.

According to the plans the CG for the 69" Mk 14 Tayor Spitfite is 106mm in from the LE at the root.

Simon.

Thank's to everybody, for your info.

Hi Rye,


I have a copy of the BT Mk1A Spitfire plan and have taken the following information which you may find of some use!

CG 4.3/16in or 106mm from the leading edge at the root.

Weight 10lbs

Elevator 1/2in up and down.

Aileron 1/2in up and down.

Rudder 1in left and right.

The original flew on a laser 75 but I wouldn't use anything under a 90fs or a good 60 2s.

Hope this is of some use.

regards
Stumps

Would you say this combination applies to the 69" Mk I/Mk II from BT as well as the Mk XIV?

I make a spitfire MK IA 69'' , and I will use a 4-stroke power, what models you advice me?

I make a spitfire MK IA 69'' , and I will use a 4-stroke power, what models you advice me?

I wouldn't go with gas for this model...BT's plans are designed and constructed around glow motors, as you didn't build this model, it may not be structually sound enough to handel a gas motor.

I am building the Brian Taylor 69" MK 1 Spitfire and I am using the Laser 80 four cycle. This engine fits in the cowl perfectly and will have power to spare. But I'm sure any good four cycle engine in the 90- 100 range, (Saito or OS) would work great.