Impulse, Specific Impulse, And DeltaV - What Do They Mean?

In this video, I explain what Impulse, Specific Impulse, and DeltaV are, and how to calculate them. I hope you enjoy this video, and please like and subscribe.
Script and Sources: docs.google.co...

[@billybot3000]

3:35 This is a bit misleading. Calculating the Δv of a multi-stage rocket is a bit more complicated. The normal Tsiolkovsky rocket equation is Δv = Isp*g0*ln(m0/mf). For the Δv of the first stage of a two-stage rocket, the mass of the seconds stage counts towards the dry mass of the first stage. If a rocket has two stages, with the 1st having an m0 of 1,000 kg and mf of 100 kg, and the 2nd having an m0 of 500 kg and an mf of 50 kg, and both with an Isp of 300s, the equation for the Δv of the first stage is Δv = 300*9.8*ln((1000+500)/(100+500)), and the equation for the second stage is Δv = 300*9.8+ln(500/50). Sorry for the mistake in the video.

[@Inx_Editz]

dam

[@TheFacelessTwo]

Thanks man. I appreciate the simple explanation.

[@erikgerbst3446]

this is really well made thanks for the explanation

[@Coop1ng]

Thanks for a quick and easy explanation. Keep going, you're doing great :)

[@fionnsexton9023]

Really great explanations. If you can't explain something simply, then you don't understand it well enough. You're precise without being inaccessible to the layman. Great job, keep making videos and keep doing what you love!

[@LogicSam146]

I really appreciate this video. Just started playing ksp lol

[@nickzevgolison3505]

Maybe lower the background song's volume so we can listen to what you say a lot better !! Awesome work !

[@simonkadlec718]

This is a great explanation. Thanks and good luck with your youtube chanel.

[@hugoruffin6003]

wonderful content

[@krishnannarayanan8819]

Thanks for the explanation!

[@mustafaezberbozan8150]

Why nobody says "Not only the magnitude of force applied to an object is a factor for further kinetic calculations, but also duration of applied force is an important factor; and IMPULSE is a property indicating the combination of those two.factors". I think this is the easiest explanation of IMPULSE.

[@mab7727]

Ah yes. Of course it's a fellow Kerbalian!

[@Mumbamumba]

Me love this video long time.

[@alansart5147]

Please higher the background music in the next video.

[@mussalo]

You tell it better than Scott Manley.

[@jonasidas]

Love how he used the music from kerbal space program. LOL!

[@hafizuddinmohdlowhim8426]

You specific impulse equation at 1:12 is wrong. It is Isp = Ve/9.8m-s^-2. In your equation, you are thinking that delta_t is the specific impulse when it is the time burn.

[@juleswoodbury58]

i'm a bit late, but i need you boss man, i'm really struggling with ksp interstellar parts and i want to build an orbital repair ship capable of prolonged and precise manoeuvring capabilities (1< TWR < 1.5 and ISP > 3000) i need to be able to rdv with debris, grab it, deorbit them and then do a "saving" burn to stay in orbit without touching the karman line. It should be able to do several missions without refueling, in high to low kerbin orbit.

[@5max62]

You did a grate JOB

[@mendax5259]

Thank you so much man

[@aerointelligenceambarsingh9029]

plese slow to the background voice it is not easy to understand

[@nouri241]

You are impressive

[@beck645]

Clear as mud!

[@uwuowo4856]

Best profile pic

[@--Jonathan09--]

Super erklärt !

[@Cafaura]

How do you work out the thrust?

[@uwuowo4856]

Newtons

[@uwuowo4856]

How much force the motor outputs

[@uwuowo4856]

U can use a weighing scale and measure how much "weight" the motor outputs

[@flappjackk.1]

Would impulse change with the amount of fuel?

[@billybot3000]

Yes, but specific impulse would not. Specific impulse is dependent on the efficiency of the engine, so it would not change, while impulse is just force x time, and adding more fuel would increase burn time, increasing impulse.

[@JZsBFF]

Lose the music!

[@kareemsalessi]

Stupid music prevents hearing

[@chadsomemalowsome]

heheheha

[@lemonjc3161]

thx

[@chax0208]

Thanks for the explanation