Hi there.
I just bought my Giant SuperSportster from Great Planes.
Airframe calls for a 32cc gas engine.
They suggest the Fuji BT-32B.
But,
what's the difference between the Fuji BT-32B and BT-32EI?
The BT-32EI is 100$ more......[:-]

EI=Electronic Ignition

Agreed,

EI=Electronic Ignition=lighter weight=more money

For some reason "EI" has been accepted as a term for "battery powered". It also allows sneaky marketing poeple to publish engine weight without including the igniton power scorce.

Kweasel,

Good call!!

There are a few manufacturers that like to list the engine weights of some of heir products less ignition, spark plug, and the prop washer and nut. The word is not to take weight listings too seriously.

As`far as the BT-32 is concerned, one could go a little larger, quite a bit better, a little lighter, for a little less. Keep shopping.

Gotta remember that GP is the Fuji distributor.

CR

You said that, not me

Hi just was surprised by the fact that you got a giant supersportster from great planes, I dont see it advertised on their site, I am building a 90 / 120 supersportster from Jim Fieldman / Don Amderson plans purchased from RCM plans as my 60 size has been destroyed by a faulty transmitter. As far as I new the 90 / 120 supersportster was discontinued. the weight of the supersportster is 10lbs and designed for fourstroke glow, if this is the same plane with a 72" span and area 950 sq" a weight of ten pounds the wing loading is great at 24.3 and a wing cube loading of only 9.4 with a gas engine which would add at least a couple of pounds still be OK at a wing loading of 29.1 but cube loading climing to 11.3 which is outside the favourable 9 - 10 for aerobatic and climing toward 12 - 13 for scale according to the web calculator I used http://www.ef-uk.net/data/wcl.htm. I have never seen them advertised for use with petrol, are we talking of the same plane if we are I think since I am in the process of building mine and at a stage where I could build for gas this would definately mean shortening the nose to keep CG and possibly make another set of wings for with slightly more wing area to reduce the wing cube loading. very interesting.

That Sportster90/120 has the thickest airfoil I have ever seen on a model airplane, it should be easy to extend the wingspan for heavier engines.