dzeroplus: So uhh, how does one learn on them then?
A Bell 47 is similar to a KH4 and the transition is not that big a difference, as I mentioned there is no provision for dual controls in a KH4 and therefore you cannot fulfill the CAO (Air Regs) endorsement requirements.
There would not be many instructors willing to sit in an aircraft without duals and I am certainly not one of them!
Also, what's the advantage of training on two types of aircraft, apart from getting more hours logged on one? Or is that it.
You can save yourself a bit of money conducting your training in two different types of aircraft, as long as your not scratching to save the basic $48,000 for a CPL on only one type.
If you have a spare $3000 you can obtain 20 hours for a much lower cost outlay. If you are interested, send me a PM and I will give you the breakdown.
Most students whom have a extra $3000 will conduct their training on two types.
I also must agree totally with High Nr, Spot On!