Fantastic job Sanjay sir   

Thanks Nithinraj 

(some of the) Deviations from plans:

1. Used 2 X 10 g Metal Servos for the wings. Made a platform for crewing the servos
2. Used 2 X 17 g Servos for Elevator & Rudder
3. Used a steerable Tail Wheel connected to the Rudder
4. Did not used the supplied covering film
5. Changed the anchoring of the main L/G; made it double height
6. Used larger (90 mm) wheels for the main L/G - rough runways!
7. Did not put sheeting at the aft bottom part of the fuse. Feel the ply is adequate

Note:

1. There seems to be a minor discrepancy in the drawing. The Dihedral brace is shown as front of the spar towards the LE in the plan, and in the cross-sectional view it is behind the spar, towards the TE. The rib cutout matches the c-s view, and I have used that
2. AUW with 2200 mAh 11.1 V 3S Lipo is 1130 grams

Kit review:

All in all a most complete kit! After a long time I have got a kit where the manufacturer has been thoughtful and thorough, provided generally clear instructions, an excellent plan, and a comprehensive hardware kit. The laser cutting is very acceptable, he parts have been removed from the sheet (this can be a painful job, especially if the laser has not gone through) and most importantly, the balsa and ply selection is well made and suits the function.

Maiden this weekend - watch this space 

Oops - one more deviation from the plan

I did not use dowels & rubber bands, but made a bolt-down arrangement for the wing. Looks cleaner and cool, and has an important function: unless you put locators, each time you put the bands, the wing moves to a slightly different position, and that affects the trims

  All the best Sanjay Sir! Maidens are always exciting 

Thanks Vishal

sir, can you tell me the cost of kaiser mk2 kit? i am interested to buy one...

http://aeromodelsupermarket.com/radio-controlled-model-kit/44-kaiser-mkii.html

Oh, my Kaiser crashed about 4 minutes into the maiden. The prop came off ( ) and it went first into a tip stall, and then a spin. Landed in a deep hole, and the wing is in bad shape. Maybe repair, or make a new wing (Corro  - 2 hours)

Sorry to hear that sir,
Await analysis.
Did it not transition to glide when prop came off?
CG too far aft?
Wing loading too high for quick recovery?
Guess you'll have new wing ready by lunchtime 
Regards.

Oh my  Looking to hear more. Curious as Iyer sir as to how the model didn't glide. Happened during roll/turn at slow speed?

My mistake, Iyer sir. Impatience, actually.

The prop adaptor of my 3536-1100 had actually partly sheared off some time ago while tightening a nut onto it. My 3536-1250 motor (which I had planned to use) had just packed up -a failed bearing led to a burnout. That was on the Fun Cub, so there was no problem with dead-stick - just glided it safely in a smooth landing. Ordered another, but was too impatient to wait  

So used the 1100 KV motor. The nut was on 1 1/2 threads, glass was half full ( ) so went ahead. Got hit by Murphy's Law  

The model did have a tendency to tip stall, below a certain speed. So had to keep the speed up (noticed this on some scale Piper Cubs too) Maybe needs washout - not too sure. It is a high wing trainer made into a sports by putting the wing below - no other changes.

When the motor went, it tip-stalled, and then went into a spin, leaving me a very very sad spectator  

Quote from: sanjayrai55 on August 28, 2014, 11:57:37 AM
So used the 1100 KV motor. The nut was on 1 1/2 threads, glass was half full ( ) so went ahead. Got hit by Murphy's Law 

Sorry I shouldn't be laughing at this but couldn't hold myself. You have an amazing sense of humour Sanjay sir 

What to do Vishal? As Confucius said, if Ra*e is inevitable, lie back and enjoy it 

 

Its bad to hear about crash Sanjay Sir 

Happens yaar. Part of the hobby 

i had seen this trainer at sharma model very stable looking trainer , sir you had done very good construction part
   , it don't matter , take this bird again into the sky   

Sad to hear the tragic end of the model.... Anyway better luck next time.  My Kaiser (old design) is still doing great guns and in good shape..........

Sanjay sir
You are right about wash out. The hand cut kaiser's that I have flown could come to nearly standstill without stalling. Wing tip drop is normal in a stall. For the next wing try low t/c aerofoil for the wing tip. Low t/c has higher stalling alpha therefore tip stall is avoided

@rcpilotacro

Gusty sir,
With due respect, this what i found (trying to add pics). Hence confused

(Red is 9% NACA0009, Green is 12% NACA0012)

Iyer sir: what do these signify?

Quote from: sanjayrai55 on August 29, 2014, 11:49:07 AM
Iyer sir: what do these signify?

That the airfoil with the lower thickness/chord ratio will stall earlier
than the same airfoil with the higher t/c.
(At angle of attack about 9 degrees vs about 11 degrees in this example)
Need to check with Gusty sir if this conclusion is correct.

Sanjay Sir That was one beautiful model. Sad to hear about it.

With your speed, I am sure next one is already 95% completed and almost ready to take flight.