Well.... tried going for flying for the last a month and more. Its been just too hot to be standing outside here in Allahabad. About 6 weeks ago had gone to fly my Kaiser Mk II. While doing the regular aeros..... lost control all of a sudden and the model just started o fall out of the sky.... Had no response from the throttle..... As the model was falling from some height... had a bit of time and as the speed built up... regained control on the model to make it a dead stick landing. The landing was rough and heavy.... broke the undercarriage.
On retrieving the model the propeller appeared to be jammed and not moving.... the motor was extremely hot...... Soon realised that the motor was burned.
Well..... the inquiry into the crash reveled the following:-
1. The Crash occurred dur to the motor getting jammed at the crucial place in the aerobatic maneuver resulting into loss of control.
2. It was a stroke of luck as the control was regained during the fall and a dead stick landing was carried out... though with some damage to the model.
3. Reason for the motor burning.... I was using a 2 in spinner on the motor and that caused the airflow around the nose of the model to deflect from the nose and make the entire shape more streamlined. This disrupted the airflow over the motor causing loss of cooling on the motor. As I pumped the motor for the aeros.... the motor could not be cooled and it ultimately burned.
The model was repaired in the coming week with reinforcements given in the nose and the attachment to the landing gear. The kaiser Mk II is all painted and ready for flying again.
Luckily only the motor was lost and the ESC etc are functional. The same set with a new motor is fitted back on the model now.
Moral of the story..... Friends if you are using a spinner and wanting to fly in this summer heat. Avoid doing so. Take off the spinner and fly.... allow the motor to cool as you fly.
Happy Landings
With no sigh of any thunderstorm to cool down the city.... flying is no more on the agenda till the temperatures come down to a reasonable level...... Day temperatures are over 45 deg every day and they cross 40 deg by 0930 everyday.
Thought of using this time to build a new model and am working on my P 51D Mustang. A 50 inch span model will be powered by a 550 W motor. The model as usual is made of thermocol..... HD for the fuselage, tailplane and the fin and medium density for the wings...
Here is the picture of that mean machine being completed......
Bad luck about the Kaiser Shobhit-ji but anyway, the model lives to fly another day :)
The Mustang looks to be coming along really well :thumbsup:
Check out these spinners from HK. Been using them for a while now, they are designed to force air on the motor providing the best cooling
(http://s25.postimg.org/sm15d6pmn/IMG_20160605_161346.jpg)
(http://s25.postimg.org/9w95wfwvz/IMG_20160605_161355.jpg)
I agree sir. Its been too hot to fly. We are literally grounded last three weeks.
Try 5:30 am to 7 am. That's what I have been doing recently
You guys are grounded because it's too hot...I'm grounded because of the rain :(
@cycloned,Hahaha , same here in ,Kerala too :)
Only drizzled here yesterday night. Want to fly today morning and saw some rain drops pouring down so had to pack up but guess what it didn't rain. It been overcast for two days now.
But at this point of time rains are needed badly in our country. So I guess we will need to bare.
Well... lately I been prefering my sleep a bit and getting up after 6 AM.... thats the reason for not going in the morning. Even if I manage to do so... the sub is like a hot oven by 0700..... lastly in the storm which hit Allahabad on the 13 of May..... my car was crushed under a big tree.... the front end is smashed and the agency has asked for one month for the repairs...... thats the other thing keeping me grounded.
Thats very unfortunate Sir.
Oh , that's sad :o
still being repaired ...... been in the sick bay for a month now.